{"items":[{"collectionId":"pbc_1295301207","collectionName":"activitypub_actors","created":"2025-07-07 16:26:54.115Z","domain":"mastodon.nl","followerCount":71,"followers":"https://mastodon.nl/users/R_Stieltjes/followers","following":"https://mastodon.nl/users/R_Stieltjes/following","followingCount":196,"icon":"https://mastodon.nl/system/accounts/avatars/109/573/845/092/298/151/original/04db577afb3d9771.png","id":"804ncfc2t5e0bg5","inbox":"https://mastodon.nl/users/R_Stieltjes/inbox","iri":"https://mastodon.nl/users/R_Stieltjes","isLocal":false,"last_fetched":"2025-08-12 11:45:41.859Z","outbox":"https://mastodon.nl/users/R_Stieltjes/outbox","preferred_username":"R_Stieltjes","public_key":"-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0gOQnXmKiiuFX7FLfdyE\n5zwqeFFRAgPY6i8AxaZAd7saHxIqfEH11x3dVp2MQ7M662c0FiK13KcWQf51BaM2\n9sCPT4pc1TAUT6HiR7GtzNEqyWCneEe8TXTfP7TSx/Is9ougtjAXlmF3F8CIsxQ+\n6gpM4Zw7MqjKB6HKdruUJVHBVMLhGOpUesYVWIPICcv9V7KZP8iLQARRftYN+fn4\nRCvtWAmD0BhOLVKxcDe1PqrZjauJImZaqqem0OkFXugbBi/9pty8KmWSijRHnZPK\nX/hmLrc0I89UFPeZOlurjedzcUu3Pc7xeYsmmKfdGmSBw7z65r3aYVT9FK3w3w+W\n7wIDAQAB\n-----END PUBLIC KEY-----\n","published":"2022-12-25 00:00:00.000Z","summary":"

wielrennen, (sport)klimmen, grafic novels, natuur, bergen, zeer diverse kunst & cultuur, duurzaamheid, onderwijs. Europeaan, Nederlander, Utrechtse. Docent: algemene didactiek, beeldende vorming, ludodidactiek oprichter auteur Creëer & Leer:  https://www.creeerenleer.nl 

","updated":"2025-08-12 11:45:41.859Z","user":"","username":"R_Stieltjes"},{"collectionId":"pbc_1295301207","collectionName":"activitypub_actors","created":"2025-07-31 16:35:06.665Z","domain":"mastodon.social","followerCount":0,"followers":"https://mastodon.social/users/rniamat/followers","following":"https://mastodon.social/users/rniamat/following","followingCount":0,"icon":"https://files.mastodon.social/accounts/avatars/001/086/361/original/0922e7d81a8a67e7.png","id":"346q2ohqq83cnng","inbox":"https://mastodon.social/users/rniamat/inbox","iri":"https://mastodon.social/users/rniamat","isLocal":false,"last_fetched":"2025-08-12 11:45:42.011Z","outbox":"https://mastodon.social/users/rniamat/outbox","preferred_username":"rniamat","public_key":"-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwzPVObnjjSG4/1g708bz\n8ttlTG6s2ak1a1Ivy0VkvU6X1Jom5NERUtfUkh0YeSkM0ZhYh7yGE+JUIEGJAvnR\nMFaL+xmTQxQdxi20D6PhjuNk9WgOfLjdCjrOCTnmQ5QN34hZBQidsTFQVj/DOKWe\nLU+ad5wYAWt2oUV7eHOuX20WvFxWsRN7aDq26Mcosf41YuQIdpbD8kOiBxTal7mr\nRQtDy0Fq+9ZB29s3giLBsc0brkqGjfHpEAbKMNko7mZf3wsV38/zfgBnkwkTKpsc\nVlUTgFvNZhxlcOFvBl35tS3rqFIPIUxVTaSUsPBAaCgXEKNrsFLUmX7H8MLc/SvG\nHwIDAQAB\n-----END PUBLIC KEY-----\n","published":"2020-01-17 00:00:00.000Z","summary":"

IT Research & B2B Editor - NL/D
Amsterdam, Berlin, Cyberspace
#RCX #RHCC

","updated":"2025-08-12 11:45:42.011Z","user":"","username":"rniamat ✍🏽"},{"collectionId":"pbc_1295301207","collectionName":"activitypub_actors","created":"2025-07-07 16:13:48.075Z","domain":"mastodon.vlaanderen","followerCount":137,"followers":"https://mastodon.vlaanderen/users/postrocker/followers","following":"https://mastodon.vlaanderen/users/postrocker/following","followingCount":135,"icon":"https://mastodon.vlaanderen/system/accounts/avatars/109/335/539/708/624/636/original/9160e24383414000.jpg","id":"84f578s0j3gwcma","inbox":"https://mastodon.vlaanderen/users/postrocker/inbox","iri":"https://mastodon.vlaanderen/users/postrocker","isLocal":false,"last_fetched":"2025-08-12 11:45:42.130Z","outbox":"https://mastodon.vlaanderen/users/postrocker/outbox","preferred_username":"postrocker","public_key":"-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0QLVPgBqSNQxpu42PyEj\nAF2i3cbtHDyu9XjZj0Kv3XcR4L1DljVbOHKJhRKZHueJ1k22RiQXChcDXsz+6KfU\nt3616ZFrPoX5Tc+ZhGVMLa3BLNOpShfu9ypD1vmaeQ9nn0idh0d9ifbWdU7YnzDM\n78tq7Lnih9AKThvUQrExbLzcl2YsB0CTeC8d+SQCoBzR4JiLoxlIEc0ij8BHKN6J\nwlm7btWAL79NoZboCGlLG92b0zXSa6GJUEE2lhUWgxw5EukwlO0HuC3iPdNdowDv\nbDxDHhJQ1mdtQMzQmEdtZO4mUYKUAx+PZRtojXCQe33z8/ZF1P9EkGt2EKQs7ewB\n2wIDAQAB\n-----END PUBLIC KEY-----\n","published":"2022-11-13 00:00:00.000Z","summary":"

Mensenrechten, dierenrechten, biologisch, België ( bieren/Ardennen), Postmetal/Postrock( Dunkfestival/Gent), Scandinavië, Griekenland, architectuur. Geen complotdenker! 🇺🇦

","updated":"2025-08-12 11:45:42.130Z","user":"","username":"ChristiaandeV"},{"collectionId":"pbc_1295301207","collectionName":"activitypub_actors","created":"2025-07-07 19:13:54.052Z","domain":"japanwi.de","followerCount":0,"followers":"https://japanwi.de/users/wouter/followers","following":"https://japanwi.de/users/wouter/following","followingCount":0,"icon":"https://cdn.masto.host/japanwide/accounts/avatars/113/893/937/940/959/725/original/126067d2f08f13f0.jpg","id":"4593ppr2f6jrb87","inbox":"https://japanwi.de/users/wouter/inbox","iri":"https://japanwi.de/users/wouter","isLocal":false,"last_fetched":"2025-08-12 11:45:42.261Z","outbox":"https://japanwi.de/users/wouter/outbox","preferred_username":"wouter","public_key":"-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvVk3Pem/uNw/VWjI/f00\nfOo0zp0GXsMF+0jKoJJFcJxO82JPrCIPaPO5HIAmFvFvMV/7I/d9Ri2vxsJgJ1Ps\nyGkr4rwKsb1hDOk3vYjiPkgwIaoH0G8GsSUhq4rNSz3ZHnfqzmEMYh8UCSGovrbR\nfTeknBvcYRS+x+87XtYIoO0HMG6W/VyDfXC1FjgjqGkwM/iWamci8iNm4lz5/jiE\nDRh/4LX+MrRoucNWAtkOm9FnCmOm1NaagIyNbOhMIAbVwfm0pXFkIxAEtlDkhbZp\nKzy1IriTpoFBGt18vUj965WZksQM17YJ542zhGGuF0HmGB1oJAq4byM1LWcVCqBw\nHwIDAQAB\n-----END PUBLIC KEY-----\n","published":"2025-01-26 00:00:00.000Z","summary":"

Woonde 5 jaar in Japan en is cultureel ervaringsdeskundige. Beheerder van meerdere websites over #japan 🇯🇵.

","updated":"2025-08-12 11:45:42.262Z","user":"","username":"Wouter"},{"collectionId":"pbc_1295301207","collectionName":"activitypub_actors","created":"2025-07-06 22:57:15.491Z","domain":"social.edu.nl","followerCount":387,"followers":"https://social.edu.nl/users/steltenpower/followers","following":"https://social.edu.nl/users/steltenpower/following","followingCount":2132,"icon":"https://objectstore.surf.nl/mastodon/accounts/avatars/113/940/004/673/055/955/original/ca6c6337e3b6bf50.jpg","id":"n7ec194j12aj9v7","inbox":"https://social.edu.nl/users/steltenpower/inbox","iri":"https://social.edu.nl/users/steltenpower","isLocal":false,"last_fetched":"2025-08-12 11:45:42.335Z","outbox":"https://social.edu.nl/users/steltenpower/outbox","preferred_username":"steltenpower","public_key":"-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAoPmtAxBn5W85KUXIBjBt\nxJFEcvHMbiAvMbkIyhqwCgctoggKcFJbFPCpomU5irwjufFki1RR1iuZ9m65r7Hg\nShhlWI38tDq7/qPPQJoWNb5W5yoIPQWLvZ9TfJSyTf1My9TKXmNURDL7Q3Ig7Add\nk3wVpJ0E1hZh0pSM00AgqVvavdtpRKGRzh/fd/N+lodmjMZtGymCjPhNrZ1cn309\nCxMApJc0eymU7zjK38g86YptQVEr1TtEB9tAmCu4/Ypy7eAsc4e1ap0fChdxO0v2\navlA4K5LareY+ocW8jxdA4b0p8hdalw7HqcLNBmrGq9MfzkcPNN1Abt0gUr9nf6f\nBwIDAQAB\n-----END PUBLIC KEY-----\n","published":"2025-02-03 00:00:00.000Z","summary":"

cooperating #usability, separation of concerns, build on people #diversity, #open standardizing on some langs, not apps. Inspired by @dynamicland interaction https://youtu.be/5Q9r-AEzRM + @pldn type #FAIRdata Knowledge Graphs, needs https://datacentricmanifesto.org.
Stop overly-hierarchical hyper-web-blind paper(simulation) Administrative Reality (AR) era.
Helps SVG https://edu.nl/87tjr, e-notebooks https://edu.nl/9gyhn, Research@Saxion, @OpenSciTwente

","updated":"2025-08-12 11:45:42.336Z","user":"","username":"Ruud Steltenpool"},{"collectionId":"pbc_1295301207","collectionName":"activitypub_actors","created":"2025-07-07 15:43:46.395Z","domain":"stegodon.nl","followerCount":667,"followers":"https://stegodon.nl/users/hermannus/followers","following":"https://stegodon.nl/users/hermannus/following","followingCount":1145,"icon":"https://cdn.masto.host/stegodonnl/accounts/avatars/109/761/804/547/906/429/original/4e4a53ab3a3ddcff.jpg","id":"19qpdc9n7f83njk","inbox":"https://stegodon.nl/users/hermannus/inbox","iri":"https://stegodon.nl/users/hermannus","isLocal":false,"last_fetched":"2025-08-12 11:45:42.464Z","outbox":"https://stegodon.nl/users/hermannus/outbox","preferred_username":"hermannus","public_key":"-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA7SBY7FUlfucHGa74EaST\nJRNoMXLH5DVzFTaw/VdiP5IwQfg/cfx4UyBL9LmnpSNRdavUyUQ6MtyGOw4UJJ1O\nPdl8kKTgJFwxeB+lU4JtEobmsdOmEnaoXW+jV4RyTkmesK92iB2CiJCxU8qNdjKY\nU6pJuSG/iuuO4h4z4eYvt+3mNCnq6fnLCv9FDxAA3x6EZnQHc/qLXZZ5vUMPmpE8\n6fsXAzN6895UtKpmamEZHYbHfRuJ2D+BaJbZYsy7kRmtdwaxX3Onv1Sr6HAXpE/4\n+hfumvOMHbNZGACL46eDa9S+d3GI1wjsGwWxuUnVjbhC2Bwkxy2mXD6U1nxF7LQj\n0wIDAQAB\n-----END PUBLIC KEY-----\n","published":"2023-01-27 00:00:00.000Z","summary":"

gastvrijheid dienstverlening @ ede
utrechtse heuvelrug (bord)spelletjes egypte veluwe service design thinking

https://www.linkedin.com/in/hermannusstegeman

verhuisd van @hermannus naar @hermannus

","updated":"2025-08-12 11:45:42.464Z","user":"","username":"Hermannus Stegeman"},{"collectionId":"pbc_1295301207","collectionName":"activitypub_actors","created":"2025-07-07 00:23:40.544Z","domain":"mastodon.social","followerCount":1604,"followers":"https://mastodon.social/users/bubakuyateh/followers","following":"https://mastodon.social/users/bubakuyateh/following","followingCount":7501,"icon":"https://files.mastodon.social/accounts/avatars/112/865/950/381/136/274/original/26dc5895260e6356.jpg","id":"44p0124q5tk858f","inbox":"https://mastodon.social/users/bubakuyateh/inbox","iri":"https://mastodon.social/users/bubakuyateh","isLocal":false,"last_fetched":"2025-08-12 09:52:58.814Z","outbox":"https://mastodon.social/users/bubakuyateh/outbox","preferred_username":"bubakuyateh","public_key":"-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAiMiWO/g68jh1I6Yqzg7A\n+/joToqWF/AlVzwV6HbSzsN7QGvYYINGB87ARf8vc7teWkJK6aLubkJlPtCzDHps\nxJVhzqy8/V/XNlPhXu3jVbxXtOywOHEie4VQB4krwFmxYxsTp1fiV6dHycX5HzuC\na94DCXKJIzjkOQNi9qwRJxD6RSsDXgGDgXnYn18ZOCvl/koWZEE4dqX2267oDRiI\n/29wONm17w2K8voJESy+h18l168VOJQFtgep29X4WbVMmsUKWQhnv5UOIFNZPP25\nDKfrXkx2RZGeBjyGGldO57NykWI1VhddfIDZHnzEpR/62NgX6QvTms5PJacunfB4\nKQIDAQAB\n-----END PUBLIC KEY-----\n","published":"2024-07-28 00:00:00.000Z","summary":"

No more wars Stop killings to innocent people. Love and harmony, peace and stability. One love. Children are the future. Signal # Kuyateh.14

","updated":"2025-08-12 09:52:58.815Z","user":"","username":"Mansa"},{"collectionId":"pbc_1295301207","collectionName":"activitypub_actors","created":"2025-07-17 01:10:53.658Z","domain":"fasol.org","followerCount":161,"followers":"https://fasol.org/users/Genealogie_nu/followers","following":"https://fasol.org/users/Genealogie_nu/following","followingCount":1323,"icon":"https://fasol.org/system/accounts/avatars/114/863/830/887/306/477/original/780ba6e3051d9d7f.jpg","id":"jtqujw9h4696104","inbox":"https://fasol.org/users/Genealogie_nu/inbox","iri":"https://fasol.org/users/Genealogie_nu","isLocal":false,"last_fetched":"2025-08-12 11:45:42.683Z","outbox":"https://fasol.org/users/Genealogie_nu/outbox","preferred_username":"Genealogie_nu","public_key":"-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtxOBQT6EA5ER2pW1eFnf\n1O8JkPBt87UaZ8w4ncB4QbXCxQo46aONUax326sYRtTMfRLoWFqfgC+HCsLHR84P\nBZCUlA3SyS+5fbhbU+WoS4dO2lx0TdJu2MvSzFwaZD2hfTtXE0Lr8Y6GgKoIApii\nZM5kaE2OlcY0Lxv8hSfRJP+oDCp7Pq18swGNItaSOnCS0CB7p4gx3dbBh3YQC4+2\nYmT5kKkAR4gLcJ8dE5ItyR6X0qgc+dK+FCRaO+lAEx2NBYAr148j8LCByTcyfrCz\nkd5DH7tCloO0rP6rz6yFUXGtigfBjZKYV5PjU5obeRpqMjg4Prwtenn/lsnMmF91\nTQIDAQAB\n-----END PUBLIC KEY-----\n","published":"2025-07-16 00:00:00.000Z","summary":"

Dagelijkse updates over stamboomonderzoek uit Nederland, Vlaanderen en daarbuiten.

Mastodon: genealogie_nu@fasol.org
Bluesky: genealogienu.bsky.social
Threads: genealogie.nu@threads.net
LinkedIn: https://www.linkedin.com/company/genealogie-nu/

Website: https://www.fasol.nl/tng

","updated":"2025-08-12 11:45:42.683Z","user":"","username":"Genealogie.nu"},{"collectionId":"pbc_1295301207","collectionName":"activitypub_actors","created":"2025-07-07 04:38:00.255Z","domain":"mastodon.social","followerCount":665,"followers":"https://mastodon.social/users/gbrugman/followers","following":"https://mastodon.social/users/gbrugman/following","followingCount":1604,"icon":"https://files.mastodon.social/accounts/avatars/108/294/943/618/216/727/original/9e6517030147ba4a.jpg","id":"hgf3ps51lm9pcy6","inbox":"https://mastodon.social/users/gbrugman/inbox","iri":"https://mastodon.social/users/gbrugman","isLocal":false,"last_fetched":"2025-08-12 11:45:42.776Z","outbox":"https://mastodon.social/users/gbrugman/outbox","preferred_username":"gbrugman","public_key":"-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA6y9cDnWTSUUcR/dL1mzi\nrSwQqaBn9GEBteTQaJDMnwRiq08nXJRCrgBo+UD7igYJYiptgXYZLhfJ4isOzHRl\nhHNCizdVwGJDeOfJ01a8GJfaOTYfNL/fFdx4V+0JaF89r6D7zUvqyVcV/BO6BypR\niPsWA1ra0HXT7ibZXfB/ze6QRrdI2YPcw1lG4Yf3f57zKHCENGVJYzufvF2HE7HH\ni/YAkJHjFaHbNIVLXb1Leboo+ppFIHHvWGECyYh5TLprfoGPuXVtFaXa1Wd3xwYN\n9ftqmIMPMQaQd9+nhehVn5ouGw8qsfWw69ufIlILb5Aqzill/pTQEhEKa29zc7lO\n6wIDAQAB\n-----END PUBLIC KEY-----\n","published":"2022-05-13 00:00:00.000Z","summary":"

Ex-ICT’er met een zwak voor zon, films, fotografie, natuur.
Lezer. Koker. Dierenknuffelaar. Vivaldifan. Grieks eilanddromer.
Voor een maatschappij die samen deelt, niet alleen de winst.
Tegen oorlog, onderdrukking en andere bugs in het systeem.
Schrijft wat hij niet meer in de krant leest.
Knokt tegen de knop ‘systeemfout – probeer opnieuw’.
Officieel erkend anti-institutioneel extremist™.

Mijn artikelen: https://substack.com/@guusbrugmanhm

@gbrugman.bsky.social
x.com/gbrugman

","updated":"2025-08-12 11:45:42.776Z","user":"","username":"Guus Brugman"},{"collectionId":"pbc_1295301207","collectionName":"activitypub_actors","created":"2025-07-10 17:51:58.598Z","domain":"toot.community","followerCount":36,"followers":"https://toot.community/users/jrndbr/followers","following":"https://toot.community/users/jrndbr/following","followingCount":184,"icon":"https://static.toot.community/accounts/avatars/114/829/982/058/129/278/original/45b55607cbcc23a9.jpg","id":"7c19co3d74q45od","inbox":"https://toot.community/users/jrndbr/inbox","iri":"https://toot.community/users/jrndbr","isLocal":false,"last_fetched":"2025-08-12 11:45:42.899Z","outbox":"https://toot.community/users/jrndbr/outbox","preferred_username":"jrndbr","public_key":"-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtnpAkUfC/G5/ImcyWTHW\n9jCyYq6LGEYuZe90jxCG7clj/11Lyz0y6/HxIY0qYesXUMPR70LVW9Bzlp70wf8X\nxrk88tAz+YT44exFROmURnfbvRZyeSrNU4cMBF4vyVOQqVp1OcXKvLpzfFqGsUS0\nJRMwdak6aGeiJFxOhdhPc67oasEJJikj+C263JDUZvv80iSB57jqBSMEmEepijn+\nKMPogLMw3bC3lb85JjR9P/1RXuyJt0xi+lIgXR9sOx8CjhyfzMAmDw7XyXXFHUlO\nUcAr1Yb6duZ3uXSf3/j7egUbNsu++htTZXJT93YVIy4fms+2rgoKAByd+SFK0mzp\ndwIDAQAB\n-----END PUBLIC KEY-----\n","published":"2025-07-10 00:00:00.000Z","summary":"

Digital citizenship @ KB National Library of The Netherlands. Cycling, collecting music, vinyl, Frank Zappa, gardening, biodiversity.

✒️ Dutch, English
🏡 Blessum, Fryslân, The Netherlands.

https://www.linkedin.com/in/jtdeboer/

#library #bibliotheek #digitaalburgerschap #digitalegeletterdheid #mediawijsheid #medialiteracy #informationliteracy #digitalcitizenship #wielrennen #cyling #biodiversiteit

","updated":"2025-08-12 11:45:42.899Z","user":"","username":"Jeroen de Boer"},{"collectionId":"pbc_1295301207","collectionName":"activitypub_actors","created":"2025-07-06 12:41:56.776Z","domain":"mastodon.social","followerCount":527,"followers":"https://mastodon.social/users/learn_rapido/followers","following":"https://mastodon.social/users/learn_rapido/following","followingCount":5548,"icon":"https://files.mastodon.social/accounts/avatars/114/671/758/738/389/417/original/ae72aac2dbf19307.png","id":"43lc8z3i414v63p","inbox":"https://mastodon.social/users/learn_rapido/inbox","iri":"https://mastodon.social/users/learn_rapido","isLocal":false,"last_fetched":"2025-08-12 10:31:30.411Z","outbox":"https://mastodon.social/users/learn_rapido/outbox","preferred_username":"learn_rapido","public_key":"-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArQrL3f+nIyqEjGHfJ1LI\nwTZbZ4EKB3la8E285wmwKTdNZcDLaS5u61n9ZTUYuMBGMEYkCvNOqbsotBgGLem8\nSlgFNwqttWQWGvDnfWHAFzsOUCsigowZ0NqAQwICcl7NBfSe3bL1h9mLLUvMveAO\n98yAuuwTkX8P+9QxLKzNhk+qooqAp/BPZtAXQCBienYcWkhQK8GjX3+CDeBCRa70\nLrrhHwJZpVHTjD/gJn7rA9xtHQG9HK5fd7YnQgicEe83bTnIqeTS93r4XpK+hbh6\nyxcf+Zd0ZgYDhGCPs51mI1Xdgt78cM6iC69GZ7TGVvDRv0B7usbkvOx0n9ToF4dS\n2wIDAQAB\n-----END PUBLIC KEY-----\n","published":"2025-06-12 00:00:00.000Z","summary":"

Learn languages and general knowledge with friends

","updated":"2025-08-12 10:31:30.411Z","user":"","username":"Learn Rapido ☀️"}],"page":1,"perPage":10,"totalItems":115,"totalPages":12}

Martijn

Followers