{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:QQC5FBGESFQAKICIKYY33KEE7Y","short_pith_number":"pith:QQC5FBGE","canonical_record":{"source":{"id":"0909.4789","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DL","submitted_at":"2009-09-25T20:29:52Z","cross_cats_sorted":["physics.soc-ph"],"title_canon_sha256":"97e7260343eef7cafcf02c79ebb7e31dd9b2b8bfc66471fc61a6cdda3cd372bc","abstract_canon_sha256":"5c7944fe7fd772ce41a49829149d3d9950a6ca4db9e9b6d176f799df1e7daaf8"},"schema_version":"1.0"},"canonical_sha256":"8405d284c491600520485631bda884fe164a2494d0d3cdc3270b600cabdb2b9c","source":{"kind":"arxiv","id":"0909.4789","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0909.4789","created_at":"2026-07-04T15:53:16Z"},{"alias_kind":"arxiv_version","alias_value":"0909.4789v1","created_at":"2026-07-04T15:53:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0909.4789","created_at":"2026-07-04T15:53:16Z"},{"alias_kind":"pith_short_12","alias_value":"QQC5FBGESFQA","created_at":"2026-07-04T15:53:16Z"},{"alias_kind":"pith_short_16","alias_value":"QQC5FBGESFQAKICI","created_at":"2026-07-04T15:53:16Z"},{"alias_kind":"pith_short_8","alias_value":"QQC5FBGE","created_at":"2026-07-04T15:53:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:QQC5FBGESFQAKICIKYY33KEE7Y","target":"record","payload":{"canonical_record":{"source":{"id":"0909.4789","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DL","submitted_at":"2009-09-25T20:29:52Z","cross_cats_sorted":["physics.soc-ph"],"title_canon_sha256":"97e7260343eef7cafcf02c79ebb7e31dd9b2b8bfc66471fc61a6cdda3cd372bc","abstract_canon_sha256":"5c7944fe7fd772ce41a49829149d3d9950a6ca4db9e9b6d176f799df1e7daaf8"},"schema_version":"1.0"},"canonical_sha256":"8405d284c491600520485631bda884fe164a2494d0d3cdc3270b600cabdb2b9c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:53:16.222076Z","signature_b64":"QBAoFnZB6dNgL4ku66hLRViZTsErM5UB2CiFZVP9Zo0hFaqWVzCVK54vCxu58k6YeCEJDA1iSCOoaGBFiJnlCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8405d284c491600520485631bda884fe164a2494d0d3cdc3270b600cabdb2b9c","last_reissued_at":"2026-07-04T15:53:16.221725Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:53:16.221725Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0909.4789","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":"2026-07-04T15:53:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"i3v73jpLv5VHgQ84HMnzVj0CX9ti1dEc4EKhGJOwP02VrM9ewhPiiMz+9fu7FybiY9Bbqs/kK280TCXL9kSUCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T18:10:30.846369Z"},"content_sha256":"0c704e9933d2209bd42dd33f6c3fa61e2ccc3ecae978d03cfe6b37b0d0518428","schema_version":"1.0","event_id":"sha256:0c704e9933d2209bd42dd33f6c3fa61e2ccc3ecae978d03cfe6b37b0d0518428"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:QQC5FBGESFQAKICIKYY33KEE7Y","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Bibliometric Properties of Article Readership Information","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.soc-ph"],"primary_cat":"cs.DL","authors_text":"Alberto Accomazzi, Barbara Elwell, Carolyn S. Grant, Guenther Eichhorn, Markus Demleitner, Michael J. Kurtz, Nathalie Martimbeau, Stephen S. Murray","submitted_at":"2009-09-25T20:29:52Z","abstract_excerpt":"The NASA Astrophysics Data System (ADS), along with astronomy's journals and data centers (a collaboration dubbed URANIA), has developed a distributed on-line digital library which has become the dominant means by which astronomers search, access and read their technical literature. Digital libraries such as the NASA Astrophysics Data System permit the easy accumulation of a new type of bibliometric measure, the number of electronic accesses (``reads'') of individual articles. We explore various aspects of this new measure. We examine the obsolescence function as measured by actual reads, and "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0909.4789","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/0909.4789/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-04T15:53:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"spm6kwMBtUT/bBQ/vihLO14iDkwX2ibl/t90T8yDeWfrjwprmMiBER7YfpwNcKKVfh9MjG0G+fAhfqhVfjMSAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T18:10:30.846994Z"},"content_sha256":"b55df3fc75cb1a495661fc18c24dfc8c3e3852a3c8e94f290f810e5f92eb16f3","schema_version":"1.0","event_id":"sha256:b55df3fc75cb1a495661fc18c24dfc8c3e3852a3c8e94f290f810e5f92eb16f3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QQC5FBGESFQAKICIKYY33KEE7Y/bundle.json","state_url":"https://pith.science/pith/QQC5FBGESFQAKICIKYY33KEE7Y/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QQC5FBGESFQAKICIKYY33KEE7Y/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":"2026-08-11T18:10:30Z","links":{"resolver":"https://pith.science/pith/QQC5FBGESFQAKICIKYY33KEE7Y","bundle":"https://pith.science/pith/QQC5FBGESFQAKICIKYY33KEE7Y/bundle.json","state":"https://pith.science/pith/QQC5FBGESFQAKICIKYY33KEE7Y/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QQC5FBGESFQAKICIKYY33KEE7Y/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:QQC5FBGESFQAKICIKYY33KEE7Y","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":"5c7944fe7fd772ce41a49829149d3d9950a6ca4db9e9b6d176f799df1e7daaf8","cross_cats_sorted":["physics.soc-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DL","submitted_at":"2009-09-25T20:29:52Z","title_canon_sha256":"97e7260343eef7cafcf02c79ebb7e31dd9b2b8bfc66471fc61a6cdda3cd372bc"},"schema_version":"1.0","source":{"id":"0909.4789","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0909.4789","created_at":"2026-07-04T15:53:16Z"},{"alias_kind":"arxiv_version","alias_value":"0909.4789v1","created_at":"2026-07-04T15:53:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0909.4789","created_at":"2026-07-04T15:53:16Z"},{"alias_kind":"pith_short_12","alias_value":"QQC5FBGESFQA","created_at":"2026-07-04T15:53:16Z"},{"alias_kind":"pith_short_16","alias_value":"QQC5FBGESFQAKICI","created_at":"2026-07-04T15:53:16Z"},{"alias_kind":"pith_short_8","alias_value":"QQC5FBGE","created_at":"2026-07-04T15:53:16Z"}],"graph_snapshots":[{"event_id":"sha256:b55df3fc75cb1a495661fc18c24dfc8c3e3852a3c8e94f290f810e5f92eb16f3","target":"graph","created_at":"2026-07-04T15:53:16Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/0909.4789/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The NASA Astrophysics Data System (ADS), along with astronomy's journals and data centers (a collaboration dubbed URANIA), has developed a distributed on-line digital library which has become the dominant means by which astronomers search, access and read their technical literature. Digital libraries such as the NASA Astrophysics Data System permit the easy accumulation of a new type of bibliometric measure, the number of electronic accesses (``reads'') of individual articles. We explore various aspects of this new measure. We examine the obsolescence function as measured by actual reads, and ","authors_text":"Alberto Accomazzi, Barbara Elwell, Carolyn S. Grant, Guenther Eichhorn, Markus Demleitner, Michael J. Kurtz, Nathalie Martimbeau, Stephen S. Murray","cross_cats":["physics.soc-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DL","submitted_at":"2009-09-25T20:29:52Z","title":"The Bibliometric Properties of Article Readership Information"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0909.4789","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":"sha256:0c704e9933d2209bd42dd33f6c3fa61e2ccc3ecae978d03cfe6b37b0d0518428","target":"record","created_at":"2026-07-04T15:53:16Z","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":"5c7944fe7fd772ce41a49829149d3d9950a6ca4db9e9b6d176f799df1e7daaf8","cross_cats_sorted":["physics.soc-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DL","submitted_at":"2009-09-25T20:29:52Z","title_canon_sha256":"97e7260343eef7cafcf02c79ebb7e31dd9b2b8bfc66471fc61a6cdda3cd372bc"},"schema_version":"1.0","source":{"id":"0909.4789","kind":"arxiv","version":1}},"canonical_sha256":"8405d284c491600520485631bda884fe164a2494d0d3cdc3270b600cabdb2b9c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8405d284c491600520485631bda884fe164a2494d0d3cdc3270b600cabdb2b9c","first_computed_at":"2026-07-04T15:53:16.221725Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:53:16.221725Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QBAoFnZB6dNgL4ku66hLRViZTsErM5UB2CiFZVP9Zo0hFaqWVzCVK54vCxu58k6YeCEJDA1iSCOoaGBFiJnlCw==","signature_status":"signed_v1","signed_at":"2026-07-04T15:53:16.222076Z","signed_message":"canonical_sha256_bytes"},"source_id":"0909.4789","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0c704e9933d2209bd42dd33f6c3fa61e2ccc3ecae978d03cfe6b37b0d0518428","sha256:b55df3fc75cb1a495661fc18c24dfc8c3e3852a3c8e94f290f810e5f92eb16f3"],"state_sha256":"003884c3b657be5aa785b8ac4f8c19f0015f1c22989ec8ec0005a9ca755a66b0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yIs05FQi6s7BFMQoomTpidoPOcs+kstne7p3fLDKp9mme63W7oFGzlJ1GCBWbTGpJjn6DzLa+As3dJgjVbtZBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-11T18:10:30.851977Z","bundle_sha256":"a1dd58c96840fbe82d6b9569fa46e13cdbf5fc591ecc2608c3c4e559e96c6d87"}}