{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:AVTIM6LKBWC5TOFUE3W7FZWJRM","short_pith_number":"pith:AVTIM6LK","canonical_record":{"source":{"id":"1201.0385","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DL","submitted_at":"2012-01-01T21:04:46Z","cross_cats_sorted":[],"title_canon_sha256":"28b9aff8ec1dfc6d2570f99810510ce957e7ee606a8abfa7b85f9c46c2434fb1","abstract_canon_sha256":"488adf6b2af2ed3030b28e17453165ce3ad97ffa26e7097e433bbd11a1bbbb62"},"schema_version":"1.0"},"canonical_sha256":"056686796a0d85d9b8b426edf2e6c98b33822a7cd7f531377f6bb1726950e941","source":{"kind":"arxiv","id":"1201.0385","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.0385","created_at":"2026-05-18T03:38:43Z"},{"alias_kind":"arxiv_version","alias_value":"1201.0385v2","created_at":"2026-05-18T03:38:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.0385","created_at":"2026-05-18T03:38:43Z"},{"alias_kind":"pith_short_12","alias_value":"AVTIM6LKBWC5","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_16","alias_value":"AVTIM6LKBWC5TOFU","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_8","alias_value":"AVTIM6LK","created_at":"2026-05-18T12:26:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:AVTIM6LKBWC5TOFUE3W7FZWJRM","target":"record","payload":{"canonical_record":{"source":{"id":"1201.0385","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DL","submitted_at":"2012-01-01T21:04:46Z","cross_cats_sorted":[],"title_canon_sha256":"28b9aff8ec1dfc6d2570f99810510ce957e7ee606a8abfa7b85f9c46c2434fb1","abstract_canon_sha256":"488adf6b2af2ed3030b28e17453165ce3ad97ffa26e7097e433bbd11a1bbbb62"},"schema_version":"1.0"},"canonical_sha256":"056686796a0d85d9b8b426edf2e6c98b33822a7cd7f531377f6bb1726950e941","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:38:43.929955Z","signature_b64":"DzI0tgq1vSa99DDm+h5s9l78JnNSSqygXBrdmISb6ekuvNc/JQVxTRqmobSqmaoDmQXvG7uin3aO4QPP1HInDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"056686796a0d85d9b8b426edf2e6c98b33822a7cd7f531377f6bb1726950e941","last_reissued_at":"2026-05-18T03:38:43.929401Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:38:43.929401Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1201.0385","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:38:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zYCaAQxYOLdmnjHt2bz1Md/DGsXaZLrJHyLxQrSrq+aVfxvymxVhvYWurRXtGmCUkhzW64OWH+xYE/ZRoIRHCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T12:01:05.002457Z"},"content_sha256":"0ad94e8ee91232197eb38277a50181bb9b492cb702bd2f0cd581ca7db76fb508","schema_version":"1.0","event_id":"sha256:0ad94e8ee91232197eb38277a50181bb9b492cb702bd2f0cd581ca7db76fb508"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:AVTIM6LKBWC5TOFUE3W7FZWJRM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Information Carriers and Identification of Information Objects: An Ontological Approach","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.DL","authors_text":"Martin Doerr, Yannis Tzitzikas","submitted_at":"2012-01-01T21:04:46Z","abstract_excerpt":"Even though library and archival practice, as well as Digital Preservation, have a long tradition in identifying information objects, the question of their precise identity under change of carrier or migration is still a riddle to science. The objective of this paper is to provide criteria for the unique identification of some important kinds of information objects, independent from the kind of carrier or specific encoding. Our approach is based on the idea that the substance of some kinds of information objects can completely be described in terms of discrete arrangements of finite numbers of"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.0385","kind":"arxiv","version":2},"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":"2026-05-18T03:38:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iL1NbKu9g9IM8OtYXW6+tThTU2wAuGyJRH45NY2r2WL4cMv6P3dhzBpHQBrL7DiDMmSER6rpqnYpd776+b4HDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T12:01:05.003091Z"},"content_sha256":"dfe85c80cf4aacc9295512a6a3840e6cf482d5a335fbf7a1084f10bd4d62026b","schema_version":"1.0","event_id":"sha256:dfe85c80cf4aacc9295512a6a3840e6cf482d5a335fbf7a1084f10bd4d62026b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AVTIM6LKBWC5TOFUE3W7FZWJRM/bundle.json","state_url":"https://pith.science/pith/AVTIM6LKBWC5TOFUE3W7FZWJRM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AVTIM6LKBWC5TOFUE3W7FZWJRM/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":"2026-06-07T12:01:05Z","links":{"resolver":"https://pith.science/pith/AVTIM6LKBWC5TOFUE3W7FZWJRM","bundle":"https://pith.science/pith/AVTIM6LKBWC5TOFUE3W7FZWJRM/bundle.json","state":"https://pith.science/pith/AVTIM6LKBWC5TOFUE3W7FZWJRM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AVTIM6LKBWC5TOFUE3W7FZWJRM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:AVTIM6LKBWC5TOFUE3W7FZWJRM","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":"488adf6b2af2ed3030b28e17453165ce3ad97ffa26e7097e433bbd11a1bbbb62","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DL","submitted_at":"2012-01-01T21:04:46Z","title_canon_sha256":"28b9aff8ec1dfc6d2570f99810510ce957e7ee606a8abfa7b85f9c46c2434fb1"},"schema_version":"1.0","source":{"id":"1201.0385","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.0385","created_at":"2026-05-18T03:38:43Z"},{"alias_kind":"arxiv_version","alias_value":"1201.0385v2","created_at":"2026-05-18T03:38:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.0385","created_at":"2026-05-18T03:38:43Z"},{"alias_kind":"pith_short_12","alias_value":"AVTIM6LKBWC5","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_16","alias_value":"AVTIM6LKBWC5TOFU","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_8","alias_value":"AVTIM6LK","created_at":"2026-05-18T12:26:58Z"}],"graph_snapshots":[{"event_id":"sha256:dfe85c80cf4aacc9295512a6a3840e6cf482d5a335fbf7a1084f10bd4d62026b","target":"graph","created_at":"2026-05-18T03:38:43Z","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":"Even though library and archival practice, as well as Digital Preservation, have a long tradition in identifying information objects, the question of their precise identity under change of carrier or migration is still a riddle to science. The objective of this paper is to provide criteria for the unique identification of some important kinds of information objects, independent from the kind of carrier or specific encoding. Our approach is based on the idea that the substance of some kinds of information objects can completely be described in terms of discrete arrangements of finite numbers of","authors_text":"Martin Doerr, Yannis Tzitzikas","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DL","submitted_at":"2012-01-01T21:04:46Z","title":"Information Carriers and Identification of Information Objects: An Ontological Approach"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.0385","kind":"arxiv","version":2},"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":"sha256:0ad94e8ee91232197eb38277a50181bb9b492cb702bd2f0cd581ca7db76fb508","target":"record","created_at":"2026-05-18T03:38:43Z","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":"488adf6b2af2ed3030b28e17453165ce3ad97ffa26e7097e433bbd11a1bbbb62","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DL","submitted_at":"2012-01-01T21:04:46Z","title_canon_sha256":"28b9aff8ec1dfc6d2570f99810510ce957e7ee606a8abfa7b85f9c46c2434fb1"},"schema_version":"1.0","source":{"id":"1201.0385","kind":"arxiv","version":2}},"canonical_sha256":"056686796a0d85d9b8b426edf2e6c98b33822a7cd7f531377f6bb1726950e941","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"056686796a0d85d9b8b426edf2e6c98b33822a7cd7f531377f6bb1726950e941","first_computed_at":"2026-05-18T03:38:43.929401Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:38:43.929401Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DzI0tgq1vSa99DDm+h5s9l78JnNSSqygXBrdmISb6ekuvNc/JQVxTRqmobSqmaoDmQXvG7uin3aO4QPP1HInDA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:38:43.929955Z","signed_message":"canonical_sha256_bytes"},"source_id":"1201.0385","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0ad94e8ee91232197eb38277a50181bb9b492cb702bd2f0cd581ca7db76fb508","sha256:dfe85c80cf4aacc9295512a6a3840e6cf482d5a335fbf7a1084f10bd4d62026b"],"state_sha256":"fed4ce60d61414a4818a208e155b61136f146d44f97a3d67b234f040697e22ca"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IopmjDnoUeVcMd3C1NnYejUPOt/BWHLYNKtzJ79OKZaW/rg2pvY0rxkGSqTcM3wMjXiHPPcabsqGqgsWYnCSAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T12:01:05.006235Z","bundle_sha256":"1507dbb0264ef867c65bdd058d4cb8e2c6de9ee265af06e0422e79816f15fb53"}}