{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:H3K3OSPK5XEYWN7DQPTVO6HAHX","short_pith_number":"pith:H3K3OSPK","canonical_record":{"source":{"id":"1301.5398","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2013-01-23T03:58:14Z","cross_cats_sorted":["cs.DL"],"title_canon_sha256":"b973c95b3715f2f37457fb44d754982046d14ddddbec4db06ffd85dd67ffaecd","abstract_canon_sha256":"2acb06e1cebab31cc19dfea5890c855f5c9f8b397b1a5aea418d1aee8c2970ef"},"schema_version":"1.0"},"canonical_sha256":"3ed5b749eaedc98b37e383e75778e03ddc19ae66b52d7d70be69fcf32dc0cafc","source":{"kind":"arxiv","id":"1301.5398","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.5398","created_at":"2026-05-18T03:35:40Z"},{"alias_kind":"arxiv_version","alias_value":"1301.5398v1","created_at":"2026-05-18T03:35:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.5398","created_at":"2026-05-18T03:35:40Z"},{"alias_kind":"pith_short_12","alias_value":"H3K3OSPK5XEY","created_at":"2026-05-18T12:27:46Z"},{"alias_kind":"pith_short_16","alias_value":"H3K3OSPK5XEYWN7D","created_at":"2026-05-18T12:27:46Z"},{"alias_kind":"pith_short_8","alias_value":"H3K3OSPK","created_at":"2026-05-18T12:27:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:H3K3OSPK5XEYWN7DQPTVO6HAHX","target":"record","payload":{"canonical_record":{"source":{"id":"1301.5398","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2013-01-23T03:58:14Z","cross_cats_sorted":["cs.DL"],"title_canon_sha256":"b973c95b3715f2f37457fb44d754982046d14ddddbec4db06ffd85dd67ffaecd","abstract_canon_sha256":"2acb06e1cebab31cc19dfea5890c855f5c9f8b397b1a5aea418d1aee8c2970ef"},"schema_version":"1.0"},"canonical_sha256":"3ed5b749eaedc98b37e383e75778e03ddc19ae66b52d7d70be69fcf32dc0cafc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:35:40.035647Z","signature_b64":"kd72wC/zn6TF7VxFnGocs8/7PC8jffMY8GJgNk1w0TFZXZgMYxfMB9GYu8Qu5Uvk3rExE5gOieB649CpTqLnAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3ed5b749eaedc98b37e383e75778e03ddc19ae66b52d7d70be69fcf32dc0cafc","last_reissued_at":"2026-05-18T03:35:40.034734Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:35:40.034734Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1301.5398","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:35:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xRA2+f1busI986YNzBxObn4tqE+/L6km1slhs7AvCBKrCnurmWMNv5GnyB42gmRBE0WRjulohQ9w4WA4z2IYAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T14:37:05.683880Z"},"content_sha256":"1b601ce4e4897b22d5fb8e004b6ff59dbe6e40c30d9ae2b7d2638cc725ce5efe","schema_version":"1.0","event_id":"sha256:1b601ce4e4897b22d5fb8e004b6ff59dbe6e40c30d9ae2b7d2638cc725ce5efe"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:H3K3OSPK5XEYWN7DQPTVO6HAHX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Collaborative digital library of historical resources: Evaluation of first users","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.DL"],"primary_cat":"cs.HC","authors_text":"A. Abdullah, A. N. Zainab","submitted_at":"2013-01-23T03:58:14Z","abstract_excerpt":"This paper describes the digital library of historical resources, a research project which involves building a testbed for the purpose of developing and testing new collaborative digital library functionality and presents an initial analysis of the digital library's public use on the web. The digital library is modeled to focus on serving secondary students information needs in conducting history projects. As such, in the implementation of the digital library, the use of online resources would be an integral part of history project based learning activities. Students should be enabled to acces"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.5398","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:35:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Rfrf4LrOCY85/tFV0sVwHdRDjO4tRlziURMTRFLJe5Ohy48Jq0qJ1+DwLPirx1wk6oYleKGsbm6eYAOF0sH2Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T14:37:05.684222Z"},"content_sha256":"056d7f8486417544804e9a573430e3baf5742585336d270c42965bf5480b2450","schema_version":"1.0","event_id":"sha256:056d7f8486417544804e9a573430e3baf5742585336d270c42965bf5480b2450"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/H3K3OSPK5XEYWN7DQPTVO6HAHX/bundle.json","state_url":"https://pith.science/pith/H3K3OSPK5XEYWN7DQPTVO6HAHX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/H3K3OSPK5XEYWN7DQPTVO6HAHX/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-05T14:37:05Z","links":{"resolver":"https://pith.science/pith/H3K3OSPK5XEYWN7DQPTVO6HAHX","bundle":"https://pith.science/pith/H3K3OSPK5XEYWN7DQPTVO6HAHX/bundle.json","state":"https://pith.science/pith/H3K3OSPK5XEYWN7DQPTVO6HAHX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/H3K3OSPK5XEYWN7DQPTVO6HAHX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:H3K3OSPK5XEYWN7DQPTVO6HAHX","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"2acb06e1cebab31cc19dfea5890c855f5c9f8b397b1a5aea418d1aee8c2970ef","cross_cats_sorted":["cs.DL"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2013-01-23T03:58:14Z","title_canon_sha256":"b973c95b3715f2f37457fb44d754982046d14ddddbec4db06ffd85dd67ffaecd"},"schema_version":"1.0","source":{"id":"1301.5398","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.5398","created_at":"2026-05-18T03:35:40Z"},{"alias_kind":"arxiv_version","alias_value":"1301.5398v1","created_at":"2026-05-18T03:35:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.5398","created_at":"2026-05-18T03:35:40Z"},{"alias_kind":"pith_short_12","alias_value":"H3K3OSPK5XEY","created_at":"2026-05-18T12:27:46Z"},{"alias_kind":"pith_short_16","alias_value":"H3K3OSPK5XEYWN7D","created_at":"2026-05-18T12:27:46Z"},{"alias_kind":"pith_short_8","alias_value":"H3K3OSPK","created_at":"2026-05-18T12:27:46Z"}],"graph_snapshots":[{"event_id":"sha256:056d7f8486417544804e9a573430e3baf5742585336d270c42965bf5480b2450","target":"graph","created_at":"2026-05-18T03:35:40Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"This paper describes the digital library of historical resources, a research project which involves building a testbed for the purpose of developing and testing new collaborative digital library functionality and presents an initial analysis of the digital library's public use on the web. The digital library is modeled to focus on serving secondary students information needs in conducting history projects. As such, in the implementation of the digital library, the use of online resources would be an integral part of history project based learning activities. Students should be enabled to acces","authors_text":"A. Abdullah, A. N. Zainab","cross_cats":["cs.DL"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2013-01-23T03:58:14Z","title":"Collaborative digital library of historical resources: Evaluation of first users"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.5398","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:1b601ce4e4897b22d5fb8e004b6ff59dbe6e40c30d9ae2b7d2638cc725ce5efe","target":"record","created_at":"2026-05-18T03:35:40Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"2acb06e1cebab31cc19dfea5890c855f5c9f8b397b1a5aea418d1aee8c2970ef","cross_cats_sorted":["cs.DL"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.HC","submitted_at":"2013-01-23T03:58:14Z","title_canon_sha256":"b973c95b3715f2f37457fb44d754982046d14ddddbec4db06ffd85dd67ffaecd"},"schema_version":"1.0","source":{"id":"1301.5398","kind":"arxiv","version":1}},"canonical_sha256":"3ed5b749eaedc98b37e383e75778e03ddc19ae66b52d7d70be69fcf32dc0cafc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3ed5b749eaedc98b37e383e75778e03ddc19ae66b52d7d70be69fcf32dc0cafc","first_computed_at":"2026-05-18T03:35:40.034734Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:35:40.034734Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kd72wC/zn6TF7VxFnGocs8/7PC8jffMY8GJgNk1w0TFZXZgMYxfMB9GYu8Qu5Uvk3rExE5gOieB649CpTqLnAg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:35:40.035647Z","signed_message":"canonical_sha256_bytes"},"source_id":"1301.5398","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1b601ce4e4897b22d5fb8e004b6ff59dbe6e40c30d9ae2b7d2638cc725ce5efe","sha256:056d7f8486417544804e9a573430e3baf5742585336d270c42965bf5480b2450"],"state_sha256":"433ab83812da1051bae32e0347a7559d753f76f133256c2efbf920376865cf0d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fT2kS7/Tg+MpfaM7Ol/ZXP/pPfRlbKXxhrY4nJTI4lPOHVciGZ3ONjECTSlAAKrBrQ4q5g0z6B4MKx1opNESBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T14:37:05.686153Z","bundle_sha256":"a6f76d58c50722b550797c8445efda7f4fc4dca4a6202dbc3329d82510a12130"}}