{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:3JIKI32FOSK62B2Q4HOR4TOVS5","short_pith_number":"pith:3JIKI32F","canonical_record":{"source":{"id":"2105.12884","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-05-27T00:30:14Z","cross_cats_sorted":[],"title_canon_sha256":"e49315859abbf98e94d76864399b982a91d88f3b217ca5d870772148c6e2a9e4","abstract_canon_sha256":"339e5c44c3a9a9d24338d143bffcabdb7f44e30605a58f261b41075100c01c9d"},"schema_version":"1.0"},"canonical_sha256":"da50a46f457495ed0750e1dd1e4dd597671d395e9dbda96c26a41fa4fe9fc5ed","source":{"kind":"arxiv","id":"2105.12884","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2105.12884","created_at":"2026-07-05T03:06:27Z"},{"alias_kind":"arxiv_version","alias_value":"2105.12884v1","created_at":"2026-07-05T03:06:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2105.12884","created_at":"2026-07-05T03:06:27Z"},{"alias_kind":"pith_short_12","alias_value":"3JIKI32FOSK6","created_at":"2026-07-05T03:06:27Z"},{"alias_kind":"pith_short_16","alias_value":"3JIKI32FOSK62B2Q","created_at":"2026-07-05T03:06:27Z"},{"alias_kind":"pith_short_8","alias_value":"3JIKI32F","created_at":"2026-07-05T03:06:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:3JIKI32FOSK62B2Q4HOR4TOVS5","target":"record","payload":{"canonical_record":{"source":{"id":"2105.12884","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-05-27T00:30:14Z","cross_cats_sorted":[],"title_canon_sha256":"e49315859abbf98e94d76864399b982a91d88f3b217ca5d870772148c6e2a9e4","abstract_canon_sha256":"339e5c44c3a9a9d24338d143bffcabdb7f44e30605a58f261b41075100c01c9d"},"schema_version":"1.0"},"canonical_sha256":"da50a46f457495ed0750e1dd1e4dd597671d395e9dbda96c26a41fa4fe9fc5ed","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:06:27.947742Z","signature_b64":"dzBfPLk+4K9KG1CzLY+LceK2LO4t5qA36lauxc1cwuJr4PCDkp1aEG6i/8OD+R5orGBeNrLkoisarilZfwgvBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"da50a46f457495ed0750e1dd1e4dd597671d395e9dbda96c26a41fa4fe9fc5ed","last_reissued_at":"2026-07-05T03:06:27.947299Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:06:27.947299Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2105.12884","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":"2026-07-05T03:06:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XvItgk7skrwPvz8HXwCW7/ajklzOKWLtb4XWsy/vEjaA6S0gyGCfjoWgkCYIA1J4s77/M2Y82q0f2lRYaCglDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T20:17:39.443317Z"},"content_sha256":"56b9d3399aaa61eb600bd0cf8565984329910bfe34645d6e5b55f4f3254c1743","schema_version":"1.0","event_id":"sha256:56b9d3399aaa61eb600bd0cf8565984329910bfe34645d6e5b55f4f3254c1743"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:3JIKI32FOSK62B2Q4HOR4TOVS5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Understanding the angular momentum evolution of T Tauri and Herbig Ae/Be stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Alexandra Garc\\'ia, Alexandre Roman-Lopes, Carlos G. Rom\\'an-Z\\'u\\~niga, Ezequiel Manzo-Mart\\'inez, Giovanni Pinz\\'on, Javier Serna, Jes\\'us Hern\\'andez, Julio Ram\\'irez-V\\'elez, Maria Gracia Batista, Ronald Avenda\\~no, Yeisson Osorio","submitted_at":"2021-05-27T00:30:14Z","abstract_excerpt":"We investigate a sample of 6 Herbig Ae/Be stars belonging to the Orion OB1 association, as well as 73 low mass objects, members of the $\\sigma$ Orionis cluster, in order to explore the angular momentum evolution at early stages of evolution, and its possible connection with main-sequence Ap/Bp magnetic stars. Using FIES and HECTOCHELLE spectra, we obtain projected rotational velocities through two independent methods. Individual masses, radii, and ages were computed using evolutionary models, distance, and cluster extinction. Under the assumption that similar physical processes operate in both"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2105.12884","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/2105.12884/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":"2026-07-05T03:06:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PkdpTjmKKD31Gr+6gnFrQwPPHwOwM0IOnbAeC6gNpdxF0qIM5GkojKziQcXNNlYkZh8BaeI/9ApEXcfh8PaXCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T20:17:39.446803Z"},"content_sha256":"be447b48f437751fdbd736708ed8bfd5b951128ac97af1c2b80955259659f492","schema_version":"1.0","event_id":"sha256:be447b48f437751fdbd736708ed8bfd5b951128ac97af1c2b80955259659f492"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3JIKI32FOSK62B2Q4HOR4TOVS5/bundle.json","state_url":"https://pith.science/pith/3JIKI32FOSK62B2Q4HOR4TOVS5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3JIKI32FOSK62B2Q4HOR4TOVS5/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":"2026-08-17T20:17:39Z","links":{"resolver":"https://pith.science/pith/3JIKI32FOSK62B2Q4HOR4TOVS5","bundle":"https://pith.science/pith/3JIKI32FOSK62B2Q4HOR4TOVS5/bundle.json","state":"https://pith.science/pith/3JIKI32FOSK62B2Q4HOR4TOVS5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3JIKI32FOSK62B2Q4HOR4TOVS5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:3JIKI32FOSK62B2Q4HOR4TOVS5","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":"339e5c44c3a9a9d24338d143bffcabdb7f44e30605a58f261b41075100c01c9d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-05-27T00:30:14Z","title_canon_sha256":"e49315859abbf98e94d76864399b982a91d88f3b217ca5d870772148c6e2a9e4"},"schema_version":"1.0","source":{"id":"2105.12884","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2105.12884","created_at":"2026-07-05T03:06:27Z"},{"alias_kind":"arxiv_version","alias_value":"2105.12884v1","created_at":"2026-07-05T03:06:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2105.12884","created_at":"2026-07-05T03:06:27Z"},{"alias_kind":"pith_short_12","alias_value":"3JIKI32FOSK6","created_at":"2026-07-05T03:06:27Z"},{"alias_kind":"pith_short_16","alias_value":"3JIKI32FOSK62B2Q","created_at":"2026-07-05T03:06:27Z"},{"alias_kind":"pith_short_8","alias_value":"3JIKI32F","created_at":"2026-07-05T03:06:27Z"}],"graph_snapshots":[{"event_id":"sha256:be447b48f437751fdbd736708ed8bfd5b951128ac97af1c2b80955259659f492","target":"graph","created_at":"2026-07-05T03:06:27Z","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/2105.12884/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We investigate a sample of 6 Herbig Ae/Be stars belonging to the Orion OB1 association, as well as 73 low mass objects, members of the $\\sigma$ Orionis cluster, in order to explore the angular momentum evolution at early stages of evolution, and its possible connection with main-sequence Ap/Bp magnetic stars. Using FIES and HECTOCHELLE spectra, we obtain projected rotational velocities through two independent methods. Individual masses, radii, and ages were computed using evolutionary models, distance, and cluster extinction. Under the assumption that similar physical processes operate in both","authors_text":"Alexandra Garc\\'ia, Alexandre Roman-Lopes, Carlos G. Rom\\'an-Z\\'u\\~niga, Ezequiel Manzo-Mart\\'inez, Giovanni Pinz\\'on, Javier Serna, Jes\\'us Hern\\'andez, Julio Ram\\'irez-V\\'elez, Maria Gracia Batista, Ronald Avenda\\~no, Yeisson Osorio","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-05-27T00:30:14Z","title":"Understanding the angular momentum evolution of T Tauri and Herbig Ae/Be stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2105.12884","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":"sha256:56b9d3399aaa61eb600bd0cf8565984329910bfe34645d6e5b55f4f3254c1743","target":"record","created_at":"2026-07-05T03:06:27Z","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":"339e5c44c3a9a9d24338d143bffcabdb7f44e30605a58f261b41075100c01c9d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-05-27T00:30:14Z","title_canon_sha256":"e49315859abbf98e94d76864399b982a91d88f3b217ca5d870772148c6e2a9e4"},"schema_version":"1.0","source":{"id":"2105.12884","kind":"arxiv","version":1}},"canonical_sha256":"da50a46f457495ed0750e1dd1e4dd597671d395e9dbda96c26a41fa4fe9fc5ed","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"da50a46f457495ed0750e1dd1e4dd597671d395e9dbda96c26a41fa4fe9fc5ed","first_computed_at":"2026-07-05T03:06:27.947299Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:06:27.947299Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dzBfPLk+4K9KG1CzLY+LceK2LO4t5qA36lauxc1cwuJr4PCDkp1aEG6i/8OD+R5orGBeNrLkoisarilZfwgvBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T03:06:27.947742Z","signed_message":"canonical_sha256_bytes"},"source_id":"2105.12884","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:56b9d3399aaa61eb600bd0cf8565984329910bfe34645d6e5b55f4f3254c1743","sha256:be447b48f437751fdbd736708ed8bfd5b951128ac97af1c2b80955259659f492"],"state_sha256":"dbff903b06a6d549ed2bee580a1a5bf56f1b3960c2ef9e1b263a5033a9fb205e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rJy2z6mJwymOrLkaQI2YruZdcoZG/VTi3TrZ+ZglwsKB2AmY9sA8E4lRwPT9Jun99vA/1GN/p/ky6w3h3zc6Dg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-17T20:17:39.497151Z","bundle_sha256":"d1771fb7e466eba901f802170d0e80529df002e20752e173f3c199287387e468"}}