{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:YBT4JMAWEGR33KZZ47SCIIIQGJ","short_pith_number":"pith:YBT4JMAW","canonical_record":{"source":{"id":"1703.00313","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-03-01T14:26:42Z","cross_cats_sorted":[],"title_canon_sha256":"bf3f863ab178332d45697eedfc6cae7d1ac648d73d84d3df6d3de5306a7c0c20","abstract_canon_sha256":"f90bd90e84f74d51230d02a3ed6b359592f1eafc179ec4203bb836a29013033c"},"schema_version":"1.0"},"canonical_sha256":"c067c4b01621a3bdab39e7e42421103247b8c830cb2aa081a6c8eeacc8ac73a1","source":{"kind":"arxiv","id":"1703.00313","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1703.00313","created_at":"2026-05-18T00:43:54Z"},{"alias_kind":"arxiv_version","alias_value":"1703.00313v1","created_at":"2026-05-18T00:43:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.00313","created_at":"2026-05-18T00:43:54Z"},{"alias_kind":"pith_short_12","alias_value":"YBT4JMAWEGR3","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_16","alias_value":"YBT4JMAWEGR33KZZ","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_8","alias_value":"YBT4JMAW","created_at":"2026-05-18T12:31:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:YBT4JMAWEGR33KZZ47SCIIIQGJ","target":"record","payload":{"canonical_record":{"source":{"id":"1703.00313","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-03-01T14:26:42Z","cross_cats_sorted":[],"title_canon_sha256":"bf3f863ab178332d45697eedfc6cae7d1ac648d73d84d3df6d3de5306a7c0c20","abstract_canon_sha256":"f90bd90e84f74d51230d02a3ed6b359592f1eafc179ec4203bb836a29013033c"},"schema_version":"1.0"},"canonical_sha256":"c067c4b01621a3bdab39e7e42421103247b8c830cb2aa081a6c8eeacc8ac73a1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:43:54.096057Z","signature_b64":"0FoCG3NhmT9FwVaYEesJXjKG8zS488V/SCg3OCFeSs+ZEtmf5a2bYA+w2KmZSg2X142H7GwB8XbQXvPPwgg2CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c067c4b01621a3bdab39e7e42421103247b8c830cb2aa081a6c8eeacc8ac73a1","last_reissued_at":"2026-05-18T00:43:54.095468Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:43:54.095468Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1703.00313","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":"2026-05-18T00:43:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"45dF8+2oheKEmXyTG29yOIl3U3cZGXBO7LTbLghIIywQ/oX6lre/5gaBYHn6Y3YhRWuq6XsNtVr3DbRj8GwIDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T11:09:29.108779Z"},"content_sha256":"30a5a23a9f80e56ffc47d488cc14ca8847200bb2f5b5de38935403ad81aebf94","schema_version":"1.0","event_id":"sha256:30a5a23a9f80e56ffc47d488cc14ca8847200bb2f5b5de38935403ad81aebf94"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:YBT4JMAWEGR33KZZ47SCIIIQGJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The globular cluster system of NGC 1316 IV. Nature of the star cluster complex SH2","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"(2) Max-Planck-Institut fuer Astronomie, (3) European Southern Observatory, (4) P. Universidad Cat\\'olica, (5) University of Hawaii, (6) Universidad Andres Bello, B. Husemann (2), Chile, Chile), Concepci\\'on, F. Bresolin (5), Garching, Germany, Heidelberg, Honolulu, M. G\\'omez (6) ((1) Universidad de Concepci\\'on, M. Hilker (3), Santiago, T. H. Puzia (4), T. Richtler (1), USA","submitted_at":"2017-03-01T14:26:42Z","abstract_excerpt":"The light of the merger remnant NGC 1316 is dominated by old and intermediate-age stars. The only sign of current star formation in this big galaxy is the HII region SH2, an isolated star cluster complex with a ring-like morphology and an estimated age of 0.1 Gyr at a galactocentric distance of about 35 kpc. A nearby intermediate-age globular cluster, surrounded by weak line emission and a few more young star clusters, is kinematically associated. The origin of this complex is enigmatic. The nebular emission lines permit a metallicity determination which can discriminate between a dwarf galaxy"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.00313","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":"2026-05-18T00:43:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QPRm2d5TSuicVHFEY2N5j+P8EYbmi5m9XF+Zwu3iaEGah/Lm9vjisTPUNV/AqRnhSG6zUs3y1CSRJpovgb26Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T11:09:29.109135Z"},"content_sha256":"39bbf3d53fe4a43dcad8f00cb798d8cf58caf32d0933a627a30faf9d0f22ba0c","schema_version":"1.0","event_id":"sha256:39bbf3d53fe4a43dcad8f00cb798d8cf58caf32d0933a627a30faf9d0f22ba0c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YBT4JMAWEGR33KZZ47SCIIIQGJ/bundle.json","state_url":"https://pith.science/pith/YBT4JMAWEGR33KZZ47SCIIIQGJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YBT4JMAWEGR33KZZ47SCIIIQGJ/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":"2026-05-28T11:09:29Z","links":{"resolver":"https://pith.science/pith/YBT4JMAWEGR33KZZ47SCIIIQGJ","bundle":"https://pith.science/pith/YBT4JMAWEGR33KZZ47SCIIIQGJ/bundle.json","state":"https://pith.science/pith/YBT4JMAWEGR33KZZ47SCIIIQGJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YBT4JMAWEGR33KZZ47SCIIIQGJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:YBT4JMAWEGR33KZZ47SCIIIQGJ","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":"f90bd90e84f74d51230d02a3ed6b359592f1eafc179ec4203bb836a29013033c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-03-01T14:26:42Z","title_canon_sha256":"bf3f863ab178332d45697eedfc6cae7d1ac648d73d84d3df6d3de5306a7c0c20"},"schema_version":"1.0","source":{"id":"1703.00313","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1703.00313","created_at":"2026-05-18T00:43:54Z"},{"alias_kind":"arxiv_version","alias_value":"1703.00313v1","created_at":"2026-05-18T00:43:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.00313","created_at":"2026-05-18T00:43:54Z"},{"alias_kind":"pith_short_12","alias_value":"YBT4JMAWEGR3","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_16","alias_value":"YBT4JMAWEGR33KZZ","created_at":"2026-05-18T12:31:56Z"},{"alias_kind":"pith_short_8","alias_value":"YBT4JMAW","created_at":"2026-05-18T12:31:56Z"}],"graph_snapshots":[{"event_id":"sha256:39bbf3d53fe4a43dcad8f00cb798d8cf58caf32d0933a627a30faf9d0f22ba0c","target":"graph","created_at":"2026-05-18T00:43:54Z","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":"The light of the merger remnant NGC 1316 is dominated by old and intermediate-age stars. The only sign of current star formation in this big galaxy is the HII region SH2, an isolated star cluster complex with a ring-like morphology and an estimated age of 0.1 Gyr at a galactocentric distance of about 35 kpc. A nearby intermediate-age globular cluster, surrounded by weak line emission and a few more young star clusters, is kinematically associated. The origin of this complex is enigmatic. The nebular emission lines permit a metallicity determination which can discriminate between a dwarf galaxy","authors_text":"(2) Max-Planck-Institut fuer Astronomie, (3) European Southern Observatory, (4) P. Universidad Cat\\'olica, (5) University of Hawaii, (6) Universidad Andres Bello, B. Husemann (2), Chile, Chile), Concepci\\'on, F. Bresolin (5), Garching, Germany, Heidelberg, Honolulu, M. G\\'omez (6) ((1) Universidad de Concepci\\'on, M. Hilker (3), Santiago, T. H. Puzia (4), T. Richtler (1), USA","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-03-01T14:26:42Z","title":"The globular cluster system of NGC 1316 IV. Nature of the star cluster complex SH2"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.00313","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":"sha256:30a5a23a9f80e56ffc47d488cc14ca8847200bb2f5b5de38935403ad81aebf94","target":"record","created_at":"2026-05-18T00:43:54Z","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":"f90bd90e84f74d51230d02a3ed6b359592f1eafc179ec4203bb836a29013033c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-03-01T14:26:42Z","title_canon_sha256":"bf3f863ab178332d45697eedfc6cae7d1ac648d73d84d3df6d3de5306a7c0c20"},"schema_version":"1.0","source":{"id":"1703.00313","kind":"arxiv","version":1}},"canonical_sha256":"c067c4b01621a3bdab39e7e42421103247b8c830cb2aa081a6c8eeacc8ac73a1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c067c4b01621a3bdab39e7e42421103247b8c830cb2aa081a6c8eeacc8ac73a1","first_computed_at":"2026-05-18T00:43:54.095468Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:43:54.095468Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0FoCG3NhmT9FwVaYEesJXjKG8zS488V/SCg3OCFeSs+ZEtmf5a2bYA+w2KmZSg2X142H7GwB8XbQXvPPwgg2CQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:43:54.096057Z","signed_message":"canonical_sha256_bytes"},"source_id":"1703.00313","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:30a5a23a9f80e56ffc47d488cc14ca8847200bb2f5b5de38935403ad81aebf94","sha256:39bbf3d53fe4a43dcad8f00cb798d8cf58caf32d0933a627a30faf9d0f22ba0c"],"state_sha256":"2c2664889d5f3c53f6edaeb6f9ccdb472b0ffeb3a4ae247e8b30f62a771ccf43"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xxi0+OBIS4u72YoO3Zbggs63XB1KAwN02U4G6cDwbpDLpQhjtt4Hyt7cLwXQ8fUT3xET5uu61/8BlQ+BjRIXAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T11:09:29.111101Z","bundle_sha256":"d3761429d6d2ca205b01b088fe4e3ef7f50699b3635fada6ae10720b83e74b91"}}