{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1998:ZJ63IKZ4Q2FKNF4XT7BWEKC5IQ","short_pith_number":"pith:ZJ63IKZ4","canonical_record":{"source":{"id":"astro-ph/9809068","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1998-09-05T20:35:58Z","cross_cats_sorted":[],"title_canon_sha256":"657cc0b1fab1d26d5be153846fcf310c1a1afc6397bf472f765330761cfd904e","abstract_canon_sha256":"13ff450ca7423d4966889b4f2c06a87645514b1ecffc3588392e326a93691d3c"},"schema_version":"1.0"},"canonical_sha256":"ca7db42b3c868aa697979fc362285d442b7da7c3ee164096b32c291edf58fe17","source":{"kind":"arxiv","id":"astro-ph/9809068","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9809068","created_at":"2026-05-17T23:48:07Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9809068v2","created_at":"2026-05-17T23:48:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9809068","created_at":"2026-05-17T23:48:07Z"},{"alias_kind":"pith_short_12","alias_value":"ZJ63IKZ4Q2FK","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"ZJ63IKZ4Q2FKNF4X","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"ZJ63IKZ4","created_at":"2026-05-18T12:25:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1998:ZJ63IKZ4Q2FKNF4XT7BWEKC5IQ","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/9809068","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1998-09-05T20:35:58Z","cross_cats_sorted":[],"title_canon_sha256":"657cc0b1fab1d26d5be153846fcf310c1a1afc6397bf472f765330761cfd904e","abstract_canon_sha256":"13ff450ca7423d4966889b4f2c06a87645514b1ecffc3588392e326a93691d3c"},"schema_version":"1.0"},"canonical_sha256":"ca7db42b3c868aa697979fc362285d442b7da7c3ee164096b32c291edf58fe17","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:48:07.794428Z","signature_b64":"z/bmKRxZ93jjYGPyt+f9yi99NLwKn/pMHN7s1XVuAlxwpGMfWifyqqu2U6FPE9UWCUcvlsnRth8NAsmr/RMdDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ca7db42b3c868aa697979fc362285d442b7da7c3ee164096b32c291edf58fe17","last_reissued_at":"2026-05-17T23:48:07.793820Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:48:07.793820Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/9809068","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":"2026-05-17T23:48:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IKo1n95QRI9lOUBbCn0EYMwTWz0Z++fZevDhvvaVYPldm7VZT0RO0oiaSowCO0VKgXEOswzhsgeteiaIcUCmBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-24T04:11:45.786496Z"},"content_sha256":"266dc4fc4924af0acf5f652448b5b67236445731f4eef2a2d1a2b12f12b9ec79","schema_version":"1.0","event_id":"sha256:266dc4fc4924af0acf5f652448b5b67236445731f4eef2a2d1a2b12f12b9ec79"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1998:ZJ63IKZ4Q2FKNF4XT7BWEKC5IQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Infalling Gas Towards the Galactic Center","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"2), (2) Astronomy Dept., Alison L. Coil (1, Berkeley), Paul T.P. Ho (1) ((1) Harvard-Smithsonian Center for Astrophysics, University of California","submitted_at":"1998-09-05T20:35:58Z","abstract_excerpt":"VLA maps of ammonia emission were made for the Galactic Center region. The NH3(1,1) and NH3(2,2) transitions were observed in three 2' x 2' fields covering Sgr A* and the region 3' immediately south of it. In the central 3 parsecs surrounding Sgr A* we find emission which appears to be associated with the circumnuclear disk (CND), both morphologically and kinematically. This central emission is connected to a long, narrow 2 pc x 10 pc streamer of clumpy molecular gas located towards the south, which appears to be carrying gas from the nearby 20 km/s giant molecular cloud (GMC) to the circumnuc"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9809068","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":"2026-05-17T23:48:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VZv73QIufp9e6Snf6j2X04gYIxQku9eXJzHr4Zvv56SYmKfIePx1cahMD2fSVdXHqiVqs6oaG2hbM6KtHLz8CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-24T04:11:45.786850Z"},"content_sha256":"8baf57ae5d902b764600de0400b59b2ddcf9a95b806fb3f39f8b765c196a9821","schema_version":"1.0","event_id":"sha256:8baf57ae5d902b764600de0400b59b2ddcf9a95b806fb3f39f8b765c196a9821"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZJ63IKZ4Q2FKNF4XT7BWEKC5IQ/bundle.json","state_url":"https://pith.science/pith/ZJ63IKZ4Q2FKNF4XT7BWEKC5IQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZJ63IKZ4Q2FKNF4XT7BWEKC5IQ/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":"2026-06-24T04:11:45Z","links":{"resolver":"https://pith.science/pith/ZJ63IKZ4Q2FKNF4XT7BWEKC5IQ","bundle":"https://pith.science/pith/ZJ63IKZ4Q2FKNF4XT7BWEKC5IQ/bundle.json","state":"https://pith.science/pith/ZJ63IKZ4Q2FKNF4XT7BWEKC5IQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZJ63IKZ4Q2FKNF4XT7BWEKC5IQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1998:ZJ63IKZ4Q2FKNF4XT7BWEKC5IQ","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":"13ff450ca7423d4966889b4f2c06a87645514b1ecffc3588392e326a93691d3c","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1998-09-05T20:35:58Z","title_canon_sha256":"657cc0b1fab1d26d5be153846fcf310c1a1afc6397bf472f765330761cfd904e"},"schema_version":"1.0","source":{"id":"astro-ph/9809068","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9809068","created_at":"2026-05-17T23:48:07Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9809068v2","created_at":"2026-05-17T23:48:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9809068","created_at":"2026-05-17T23:48:07Z"},{"alias_kind":"pith_short_12","alias_value":"ZJ63IKZ4Q2FK","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"ZJ63IKZ4Q2FKNF4X","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"ZJ63IKZ4","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:8baf57ae5d902b764600de0400b59b2ddcf9a95b806fb3f39f8b765c196a9821","target":"graph","created_at":"2026-05-17T23:48:07Z","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":"VLA maps of ammonia emission were made for the Galactic Center region. The NH3(1,1) and NH3(2,2) transitions were observed in three 2' x 2' fields covering Sgr A* and the region 3' immediately south of it. In the central 3 parsecs surrounding Sgr A* we find emission which appears to be associated with the circumnuclear disk (CND), both morphologically and kinematically. This central emission is connected to a long, narrow 2 pc x 10 pc streamer of clumpy molecular gas located towards the south, which appears to be carrying gas from the nearby 20 km/s giant molecular cloud (GMC) to the circumnuc","authors_text":"2), (2) Astronomy Dept., Alison L. Coil (1, Berkeley), Paul T.P. Ho (1) ((1) Harvard-Smithsonian Center for Astrophysics, University of California","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"1998-09-05T20:35:58Z","title":"Infalling Gas Towards the Galactic Center"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9809068","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":"sha256:266dc4fc4924af0acf5f652448b5b67236445731f4eef2a2d1a2b12f12b9ec79","target":"record","created_at":"2026-05-17T23:48:07Z","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":"13ff450ca7423d4966889b4f2c06a87645514b1ecffc3588392e326a93691d3c","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1998-09-05T20:35:58Z","title_canon_sha256":"657cc0b1fab1d26d5be153846fcf310c1a1afc6397bf472f765330761cfd904e"},"schema_version":"1.0","source":{"id":"astro-ph/9809068","kind":"arxiv","version":2}},"canonical_sha256":"ca7db42b3c868aa697979fc362285d442b7da7c3ee164096b32c291edf58fe17","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ca7db42b3c868aa697979fc362285d442b7da7c3ee164096b32c291edf58fe17","first_computed_at":"2026-05-17T23:48:07.793820Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:48:07.793820Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"z/bmKRxZ93jjYGPyt+f9yi99NLwKn/pMHN7s1XVuAlxwpGMfWifyqqu2U6FPE9UWCUcvlsnRth8NAsmr/RMdDw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:48:07.794428Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/9809068","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:266dc4fc4924af0acf5f652448b5b67236445731f4eef2a2d1a2b12f12b9ec79","sha256:8baf57ae5d902b764600de0400b59b2ddcf9a95b806fb3f39f8b765c196a9821"],"state_sha256":"925df9114a5f06184697d76ae730255ba41f533e4e817d45f9e5d9a306094575"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pzpnUoJxGpiroELddgaIaRcHQcv0Pv3hQgxlnZ7S5qKuraA4znjqHdy/b8b0FbPelh9Ef5ykHEywkAbKcwquBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-24T04:11:45.788926Z","bundle_sha256":"c45fcc8c3097f147b3147d8bd3dae3473db137f295160af006ee975c62dfaff0"}}