{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2001:CMPSAHN5HSNDA5FYKZZ5YKAG32","short_pith_number":"pith:CMPSAHN5","canonical_record":{"source":{"id":"astro-ph/0112143","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2001-12-06T14:10:04Z","cross_cats_sorted":[],"title_canon_sha256":"dbfc78d637b59b9bb17801861fcb136184ece856d2a60ed80c410871cf99276a","abstract_canon_sha256":"960a0c1804d36f19f6725995dcd65a44dfbdd340c453c5fd94fbfc7f4878043d"},"schema_version":"1.0"},"canonical_sha256":"131f201dbd3c9a3074b85673dc2806de863c7a6e0f3112da3ab2dcc46a8b8d55","source":{"kind":"arxiv","id":"astro-ph/0112143","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0112143","created_at":"2026-05-18T01:09:10Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0112143v1","created_at":"2026-05-18T01:09:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0112143","created_at":"2026-05-18T01:09:10Z"},{"alias_kind":"pith_short_12","alias_value":"CMPSAHN5HSND","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"CMPSAHN5HSNDA5FY","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"CMPSAHN5","created_at":"2026-05-18T12:25:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2001:CMPSAHN5HSNDA5FYKZZ5YKAG32","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0112143","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2001-12-06T14:10:04Z","cross_cats_sorted":[],"title_canon_sha256":"dbfc78d637b59b9bb17801861fcb136184ece856d2a60ed80c410871cf99276a","abstract_canon_sha256":"960a0c1804d36f19f6725995dcd65a44dfbdd340c453c5fd94fbfc7f4878043d"},"schema_version":"1.0"},"canonical_sha256":"131f201dbd3c9a3074b85673dc2806de863c7a6e0f3112da3ab2dcc46a8b8d55","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:09:10.818517Z","signature_b64":"cMlqmzevQWP1fRgV990LAl8FRBK+x7yN4Wbu1KTxsH03l4pqWNuLGXXl05gMMf9zSexkCdnczPSPZa8ZpUhbBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"131f201dbd3c9a3074b85673dc2806de863c7a6e0f3112da3ab2dcc46a8b8d55","last_reissued_at":"2026-05-18T01:09:10.818044Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:09:10.818044Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0112143","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":"2026-05-18T01:09:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dkG42sejV0aBnR1D+ddQJtYNLuA9htLiiIvYpx2Uq1FS/ojLW2K9LaJUQ1CyzQ4Uwio/rI5k1QCkmxO1dJBxAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T19:01:46.131089Z"},"content_sha256":"bd8f46766da32bdfa305ff9a65a7120ac0ef277a8601412aa2aa1fcb8fc5cb19","schema_version":"1.0","event_id":"sha256:bd8f46766da32bdfa305ff9a65a7120ac0ef277a8601412aa2aa1fcb8fc5cb19"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2001:CMPSAHN5HSNDA5FYKZZ5YKAG32","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Decametric AGNs: FIRST and NVSS maps and radio spectra","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Apdo., Heinz Andernach (2) ((1) Special astrophysical observatory, Mexico), Natalia V. Verkhodanova (1), Nizhnij Arkhyz, Oleg V. Verkhodanov (1), Russia; (2) Depto. de Astronom\\'ia, Univ. Guanajuato","submitted_at":"2001-12-06T14:10:04Z","abstract_excerpt":"Radio sources from the decametric UTR--2 catalog were cross-identified with other radio catalogs at higher frequencies. We used the CATS database to extract all sources within the UTR beam size ($\\sim40'$) to find candidate radio identifications. Using the least squares method we fitted the spectrum of each source with one of a set of curves. We extracted NVSS and FIRST radio images for the radio-identified sources, and looked for a possible relation between size and spectral index."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0112143","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":"2026-05-18T01:09:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JiWhZBMrQkjNTJgb2AQquZpEFhVNENt5EX/4KJ3HNfS0CnTni+LisGO2TcSbdkhLy+dx4Nt9i9gX2xpZEed7CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T19:01:46.131569Z"},"content_sha256":"09ca0f6911d10661cebab6c36594ad3cdddb8a2e1e7ea1bed825d5931704c358","schema_version":"1.0","event_id":"sha256:09ca0f6911d10661cebab6c36594ad3cdddb8a2e1e7ea1bed825d5931704c358"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CMPSAHN5HSNDA5FYKZZ5YKAG32/bundle.json","state_url":"https://pith.science/pith/CMPSAHN5HSNDA5FYKZZ5YKAG32/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CMPSAHN5HSNDA5FYKZZ5YKAG32/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":"2026-05-27T19:01:46Z","links":{"resolver":"https://pith.science/pith/CMPSAHN5HSNDA5FYKZZ5YKAG32","bundle":"https://pith.science/pith/CMPSAHN5HSNDA5FYKZZ5YKAG32/bundle.json","state":"https://pith.science/pith/CMPSAHN5HSNDA5FYKZZ5YKAG32/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CMPSAHN5HSNDA5FYKZZ5YKAG32/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2001:CMPSAHN5HSNDA5FYKZZ5YKAG32","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":"960a0c1804d36f19f6725995dcd65a44dfbdd340c453c5fd94fbfc7f4878043d","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2001-12-06T14:10:04Z","title_canon_sha256":"dbfc78d637b59b9bb17801861fcb136184ece856d2a60ed80c410871cf99276a"},"schema_version":"1.0","source":{"id":"astro-ph/0112143","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0112143","created_at":"2026-05-18T01:09:10Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0112143v1","created_at":"2026-05-18T01:09:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0112143","created_at":"2026-05-18T01:09:10Z"},{"alias_kind":"pith_short_12","alias_value":"CMPSAHN5HSND","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"CMPSAHN5HSNDA5FY","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"CMPSAHN5","created_at":"2026-05-18T12:25:50Z"}],"graph_snapshots":[{"event_id":"sha256:09ca0f6911d10661cebab6c36594ad3cdddb8a2e1e7ea1bed825d5931704c358","target":"graph","created_at":"2026-05-18T01:09:10Z","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":"Radio sources from the decametric UTR--2 catalog were cross-identified with other radio catalogs at higher frequencies. We used the CATS database to extract all sources within the UTR beam size ($\\sim40'$) to find candidate radio identifications. Using the least squares method we fitted the spectrum of each source with one of a set of curves. We extracted NVSS and FIRST radio images for the radio-identified sources, and looked for a possible relation between size and spectral index.","authors_text":"Apdo., Heinz Andernach (2) ((1) Special astrophysical observatory, Mexico), Natalia V. Verkhodanova (1), Nizhnij Arkhyz, Oleg V. Verkhodanov (1), Russia; (2) Depto. de Astronom\\'ia, Univ. Guanajuato","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2001-12-06T14:10:04Z","title":"Decametric AGNs: FIRST and NVSS maps and radio spectra"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0112143","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:bd8f46766da32bdfa305ff9a65a7120ac0ef277a8601412aa2aa1fcb8fc5cb19","target":"record","created_at":"2026-05-18T01:09:10Z","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":"960a0c1804d36f19f6725995dcd65a44dfbdd340c453c5fd94fbfc7f4878043d","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2001-12-06T14:10:04Z","title_canon_sha256":"dbfc78d637b59b9bb17801861fcb136184ece856d2a60ed80c410871cf99276a"},"schema_version":"1.0","source":{"id":"astro-ph/0112143","kind":"arxiv","version":1}},"canonical_sha256":"131f201dbd3c9a3074b85673dc2806de863c7a6e0f3112da3ab2dcc46a8b8d55","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"131f201dbd3c9a3074b85673dc2806de863c7a6e0f3112da3ab2dcc46a8b8d55","first_computed_at":"2026-05-18T01:09:10.818044Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:09:10.818044Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"cMlqmzevQWP1fRgV990LAl8FRBK+x7yN4Wbu1KTxsH03l4pqWNuLGXXl05gMMf9zSexkCdnczPSPZa8ZpUhbBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:09:10.818517Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0112143","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bd8f46766da32bdfa305ff9a65a7120ac0ef277a8601412aa2aa1fcb8fc5cb19","sha256:09ca0f6911d10661cebab6c36594ad3cdddb8a2e1e7ea1bed825d5931704c358"],"state_sha256":"eb3e32d0c35180fbff9bbecd9c1bb030c9676ee8fc6c27911caaf2974b30bb77"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1NOEoeH82Ab4bHg+byrk0b7W4RGT2JRMWqx608ttXFOUGrysEqr5Vtiv6t+dwtakSGVGQlaXm8LzunvJAXpZDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T19:01:46.133972Z","bundle_sha256":"59b869a9add232f2066012c75ffba3a46d175bab8a447faec7cdc2523686b7d4"}}