{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:ZVWMXSGDTLO2IWSK5RJBY4K4OJ","short_pith_number":"pith:ZVWMXSGD","canonical_record":{"source":{"id":"1202.1200","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-02-06T16:45:55Z","cross_cats_sorted":[],"title_canon_sha256":"0d3bf841a43d8a431b63cf7a29b2bb4d550f91b9dcbef1c1397481f60f3ef88a","abstract_canon_sha256":"72a1fa60150980a6a255314a29eeb563740d2f7a66736fcedebf28104033b2f5"},"schema_version":"1.0"},"canonical_sha256":"cd6ccbc8c39adda45a4aec521c715c724a2c2c4bcc1661025a3fbc3e43a3056d","source":{"kind":"arxiv","id":"1202.1200","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.1200","created_at":"2026-05-18T01:58:33Z"},{"alias_kind":"arxiv_version","alias_value":"1202.1200v1","created_at":"2026-05-18T01:58:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.1200","created_at":"2026-05-18T01:58:33Z"},{"alias_kind":"pith_short_12","alias_value":"ZVWMXSGDTLO2","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_16","alias_value":"ZVWMXSGDTLO2IWSK","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_8","alias_value":"ZVWMXSGD","created_at":"2026-05-18T12:27:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:ZVWMXSGDTLO2IWSK5RJBY4K4OJ","target":"record","payload":{"canonical_record":{"source":{"id":"1202.1200","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-02-06T16:45:55Z","cross_cats_sorted":[],"title_canon_sha256":"0d3bf841a43d8a431b63cf7a29b2bb4d550f91b9dcbef1c1397481f60f3ef88a","abstract_canon_sha256":"72a1fa60150980a6a255314a29eeb563740d2f7a66736fcedebf28104033b2f5"},"schema_version":"1.0"},"canonical_sha256":"cd6ccbc8c39adda45a4aec521c715c724a2c2c4bcc1661025a3fbc3e43a3056d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:58:33.392823Z","signature_b64":"sejk8IiwZShGSMfw2bxCPO1yFQ3PrbEZmdUKKSrz1LxhTrloD28rN7vf5g22z0aSUnxRdNV1hjvKWPYx7vcvDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cd6ccbc8c39adda45a4aec521c715c724a2c2c4bcc1661025a3fbc3e43a3056d","last_reissued_at":"2026-05-18T01:58:33.392217Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:58:33.392217Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1202.1200","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":"2026-05-18T01:58:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dnFsw40vJsDVlQCcJyC3j1GXW1M0J1vPpyjxOFLQZV4f+8tuIioAWMi3L1eVSZkQRk1LYKTqcYoASj/Lr/8iDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T22:23:48.063627Z"},"content_sha256":"f518c8840f0637c4d948ccb1ed915bd617d45f89c83c084e81ad97e8a896aa83","schema_version":"1.0","event_id":"sha256:f518c8840f0637c4d948ccb1ed915bd617d45f89c83c084e81ad97e8a896aa83"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:ZVWMXSGDTLO2IWSK5RJBY4K4OJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Search for Hydroxylamine (NH2OH) toward Select Astronomical Sources","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Anthony J. Remijan, Brett A. McGuire, Robin L. Pulliam","submitted_at":"2012-02-06T16:45:55Z","abstract_excerpt":"Observations of 14 rotational transitions of hydroxylamine (NH2OH) using the NRAO 12 m Telescope on Kitt Peak are reported towards IRC+10216, Orion KL, Orion S, Sgr B2(N), Sgr B2(OH), W3IRS5, and W51M. Although recent models suggest the presence of NH2OH in high abundance, these observations resulted in non-detection. Upper limits are calculated to be as much as six orders of magnitude lower than predicted by models. Possible explanations for the lower than expected abundance are explored."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.1200","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":"2026-05-18T01:58:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VMDU8UbFEhLhWFg14lzx/kQZnKCm3Eoji27d89k92LtC1NX6uPYrkk3WgpTLM9ADUvvsJPOSbbQFvOx1pbDcDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T22:23:48.064402Z"},"content_sha256":"f2c5cb9b15270705bc69e0dd96ea3af84ecfdd154ea842b8c7e03cfa54c248c9","schema_version":"1.0","event_id":"sha256:f2c5cb9b15270705bc69e0dd96ea3af84ecfdd154ea842b8c7e03cfa54c248c9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZVWMXSGDTLO2IWSK5RJBY4K4OJ/bundle.json","state_url":"https://pith.science/pith/ZVWMXSGDTLO2IWSK5RJBY4K4OJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZVWMXSGDTLO2IWSK5RJBY4K4OJ/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":"2026-05-31T22:23:48Z","links":{"resolver":"https://pith.science/pith/ZVWMXSGDTLO2IWSK5RJBY4K4OJ","bundle":"https://pith.science/pith/ZVWMXSGDTLO2IWSK5RJBY4K4OJ/bundle.json","state":"https://pith.science/pith/ZVWMXSGDTLO2IWSK5RJBY4K4OJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZVWMXSGDTLO2IWSK5RJBY4K4OJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:ZVWMXSGDTLO2IWSK5RJBY4K4OJ","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":"72a1fa60150980a6a255314a29eeb563740d2f7a66736fcedebf28104033b2f5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-02-06T16:45:55Z","title_canon_sha256":"0d3bf841a43d8a431b63cf7a29b2bb4d550f91b9dcbef1c1397481f60f3ef88a"},"schema_version":"1.0","source":{"id":"1202.1200","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.1200","created_at":"2026-05-18T01:58:33Z"},{"alias_kind":"arxiv_version","alias_value":"1202.1200v1","created_at":"2026-05-18T01:58:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.1200","created_at":"2026-05-18T01:58:33Z"},{"alias_kind":"pith_short_12","alias_value":"ZVWMXSGDTLO2","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_16","alias_value":"ZVWMXSGDTLO2IWSK","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_8","alias_value":"ZVWMXSGD","created_at":"2026-05-18T12:27:30Z"}],"graph_snapshots":[{"event_id":"sha256:f2c5cb9b15270705bc69e0dd96ea3af84ecfdd154ea842b8c7e03cfa54c248c9","target":"graph","created_at":"2026-05-18T01:58:33Z","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":"Observations of 14 rotational transitions of hydroxylamine (NH2OH) using the NRAO 12 m Telescope on Kitt Peak are reported towards IRC+10216, Orion KL, Orion S, Sgr B2(N), Sgr B2(OH), W3IRS5, and W51M. Although recent models suggest the presence of NH2OH in high abundance, these observations resulted in non-detection. Upper limits are calculated to be as much as six orders of magnitude lower than predicted by models. Possible explanations for the lower than expected abundance are explored.","authors_text":"Anthony J. Remijan, Brett A. McGuire, Robin L. Pulliam","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-02-06T16:45:55Z","title":"A Search for Hydroxylamine (NH2OH) toward Select Astronomical Sources"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.1200","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:f518c8840f0637c4d948ccb1ed915bd617d45f89c83c084e81ad97e8a896aa83","target":"record","created_at":"2026-05-18T01:58:33Z","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":"72a1fa60150980a6a255314a29eeb563740d2f7a66736fcedebf28104033b2f5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-02-06T16:45:55Z","title_canon_sha256":"0d3bf841a43d8a431b63cf7a29b2bb4d550f91b9dcbef1c1397481f60f3ef88a"},"schema_version":"1.0","source":{"id":"1202.1200","kind":"arxiv","version":1}},"canonical_sha256":"cd6ccbc8c39adda45a4aec521c715c724a2c2c4bcc1661025a3fbc3e43a3056d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cd6ccbc8c39adda45a4aec521c715c724a2c2c4bcc1661025a3fbc3e43a3056d","first_computed_at":"2026-05-18T01:58:33.392217Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:58:33.392217Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"sejk8IiwZShGSMfw2bxCPO1yFQ3PrbEZmdUKKSrz1LxhTrloD28rN7vf5g22z0aSUnxRdNV1hjvKWPYx7vcvDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:58:33.392823Z","signed_message":"canonical_sha256_bytes"},"source_id":"1202.1200","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f518c8840f0637c4d948ccb1ed915bd617d45f89c83c084e81ad97e8a896aa83","sha256:f2c5cb9b15270705bc69e0dd96ea3af84ecfdd154ea842b8c7e03cfa54c248c9"],"state_sha256":"c4c2f1ca9bdeb43c1f9c36bac4a7650d37656883911322b89a5ea3ba13ff3b12"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1/ZthgtXNJQGvgLUGwyy2AnbRLVF/9sr+5ur8t5m+nyQlwMfYt/wvbgNLHxa4uPyZ++cmKoOTENVqOZJGv29DQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T22:23:48.068439Z","bundle_sha256":"6c026e721383df079039754cef415d0b8d8c5d4b29550b7e8bea5364c3bb5b5a"}}