{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:B4JA2XYISKI3U7THVGP3TS5VGN","short_pith_number":"pith:B4JA2XYI","canonical_record":{"source":{"id":"1706.01504","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-06-05T19:08:02Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"c2bceea849610b706b097aa77113576e2bd6f7380829e6852107f8175bbd18a6","abstract_canon_sha256":"9bef327fc4cccecb4defecd736bbb4b1d0eab5badf1d154b95989051e09fbd86"},"schema_version":"1.0"},"canonical_sha256":"0f120d5f089291ba7e67a99fb9cbb533613a5fd52c4add6f3365560b8427662e","source":{"kind":"arxiv","id":"1706.01504","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1706.01504","created_at":"2026-05-18T00:39:34Z"},{"alias_kind":"arxiv_version","alias_value":"1706.01504v1","created_at":"2026-05-18T00:39:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1706.01504","created_at":"2026-05-18T00:39:34Z"},{"alias_kind":"pith_short_12","alias_value":"B4JA2XYISKI3","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_16","alias_value":"B4JA2XYISKI3U7TH","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_8","alias_value":"B4JA2XYI","created_at":"2026-05-18T12:31:08Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:B4JA2XYISKI3U7THVGP3TS5VGN","target":"record","payload":{"canonical_record":{"source":{"id":"1706.01504","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-06-05T19:08:02Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"c2bceea849610b706b097aa77113576e2bd6f7380829e6852107f8175bbd18a6","abstract_canon_sha256":"9bef327fc4cccecb4defecd736bbb4b1d0eab5badf1d154b95989051e09fbd86"},"schema_version":"1.0"},"canonical_sha256":"0f120d5f089291ba7e67a99fb9cbb533613a5fd52c4add6f3365560b8427662e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:39:34.225445Z","signature_b64":"YLwDGXp2xqwKkaQDyUep1aA+aSgJxny3LFZxbB1Zx9KMamE3FC3iZjD2jKaq1zqtQQ+nHvlKUuugFAd19EDdDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0f120d5f089291ba7e67a99fb9cbb533613a5fd52c4add6f3365560b8427662e","last_reissued_at":"2026-05-18T00:39:34.224665Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:39:34.224665Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1706.01504","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":"2026-05-18T00:39:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"37QyAo/MrtnKAUdisGrgpWs9wtCMdY2c1VwhpfNc3SwcSiE1x97GUN27fVTLGuzDy9An9gGEJ/BgCiRXmcjtDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T22:54:06.438152Z"},"content_sha256":"7fe09498c1a77d51f6159bc2633a0eb9bd6061f612d7fca85c372c370abf6084","schema_version":"1.0","event_id":"sha256:7fe09498c1a77d51f6159bc2633a0eb9bd6061f612d7fca85c372c370abf6084"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:B4JA2XYISKI3U7THVGP3TS5VGN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The chemical composition of the stellar cluster Gaia1: no surprise behind Sirius","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"A. Mucciarelli, I. Saviane, L. Monaco, P. Bonifacio","submitted_at":"2017-06-05T19:08:02Z","abstract_excerpt":"We observed 6 He-clump stars of the intermediate-age stellar cluster Gaia1 with the MIKE/MAGELLAN spectrograph. A possible extra-galactic origin of this cluster, recently discovered thanks to the first data release of the ESA Gaia mission, has been suggested, based on its orbital parameters. Abundances for Fe, alpha, proton- and neutron-capture elements have been obtained. We find no evidence of intrinsic abundance spreads. The iron abundance is solar ([FeI/H]=+0.00 +-0.01; sigma = 0.03 dex). All the other abundance ratios are, by and large, solar-scaled, similar to the Galactic thin disk and "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.01504","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":"2026-05-18T00:39:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"quUI6aDHvev+wDVoxlDHoWBj9NSJQM7qfyECOtdm6PM5qcRzsUXeNbIwdXB/i6DIOiRWMdSWtHgxaqObeJmBCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T22:54:06.438904Z"},"content_sha256":"58c95d3748fdb645eadad27fccbc2c4ff33afa5aab8fd76410ca21b15d31615a","schema_version":"1.0","event_id":"sha256:58c95d3748fdb645eadad27fccbc2c4ff33afa5aab8fd76410ca21b15d31615a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/B4JA2XYISKI3U7THVGP3TS5VGN/bundle.json","state_url":"https://pith.science/pith/B4JA2XYISKI3U7THVGP3TS5VGN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/B4JA2XYISKI3U7THVGP3TS5VGN/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":"2026-06-11T22:54:06Z","links":{"resolver":"https://pith.science/pith/B4JA2XYISKI3U7THVGP3TS5VGN","bundle":"https://pith.science/pith/B4JA2XYISKI3U7THVGP3TS5VGN/bundle.json","state":"https://pith.science/pith/B4JA2XYISKI3U7THVGP3TS5VGN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/B4JA2XYISKI3U7THVGP3TS5VGN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:B4JA2XYISKI3U7THVGP3TS5VGN","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":"9bef327fc4cccecb4defecd736bbb4b1d0eab5badf1d154b95989051e09fbd86","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-06-05T19:08:02Z","title_canon_sha256":"c2bceea849610b706b097aa77113576e2bd6f7380829e6852107f8175bbd18a6"},"schema_version":"1.0","source":{"id":"1706.01504","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1706.01504","created_at":"2026-05-18T00:39:34Z"},{"alias_kind":"arxiv_version","alias_value":"1706.01504v1","created_at":"2026-05-18T00:39:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1706.01504","created_at":"2026-05-18T00:39:34Z"},{"alias_kind":"pith_short_12","alias_value":"B4JA2XYISKI3","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_16","alias_value":"B4JA2XYISKI3U7TH","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_8","alias_value":"B4JA2XYI","created_at":"2026-05-18T12:31:08Z"}],"graph_snapshots":[{"event_id":"sha256:58c95d3748fdb645eadad27fccbc2c4ff33afa5aab8fd76410ca21b15d31615a","target":"graph","created_at":"2026-05-18T00:39:34Z","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":"We observed 6 He-clump stars of the intermediate-age stellar cluster Gaia1 with the MIKE/MAGELLAN spectrograph. A possible extra-galactic origin of this cluster, recently discovered thanks to the first data release of the ESA Gaia mission, has been suggested, based on its orbital parameters. Abundances for Fe, alpha, proton- and neutron-capture elements have been obtained. We find no evidence of intrinsic abundance spreads. The iron abundance is solar ([FeI/H]=+0.00 +-0.01; sigma = 0.03 dex). All the other abundance ratios are, by and large, solar-scaled, similar to the Galactic thin disk and ","authors_text":"A. Mucciarelli, I. Saviane, L. Monaco, P. Bonifacio","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-06-05T19:08:02Z","title":"The chemical composition of the stellar cluster Gaia1: no surprise behind Sirius"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.01504","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":"sha256:7fe09498c1a77d51f6159bc2633a0eb9bd6061f612d7fca85c372c370abf6084","target":"record","created_at":"2026-05-18T00:39:34Z","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":"9bef327fc4cccecb4defecd736bbb4b1d0eab5badf1d154b95989051e09fbd86","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-06-05T19:08:02Z","title_canon_sha256":"c2bceea849610b706b097aa77113576e2bd6f7380829e6852107f8175bbd18a6"},"schema_version":"1.0","source":{"id":"1706.01504","kind":"arxiv","version":1}},"canonical_sha256":"0f120d5f089291ba7e67a99fb9cbb533613a5fd52c4add6f3365560b8427662e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0f120d5f089291ba7e67a99fb9cbb533613a5fd52c4add6f3365560b8427662e","first_computed_at":"2026-05-18T00:39:34.224665Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:39:34.224665Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YLwDGXp2xqwKkaQDyUep1aA+aSgJxny3LFZxbB1Zx9KMamE3FC3iZjD2jKaq1zqtQQ+nHvlKUuugFAd19EDdDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:39:34.225445Z","signed_message":"canonical_sha256_bytes"},"source_id":"1706.01504","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7fe09498c1a77d51f6159bc2633a0eb9bd6061f612d7fca85c372c370abf6084","sha256:58c95d3748fdb645eadad27fccbc2c4ff33afa5aab8fd76410ca21b15d31615a"],"state_sha256":"eb3d8cd642796813132043b8d3225685c087c7659dda0e2cbdf65b091bb4e35f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YRPU1mZRpDvUUZ4iEAjyzshAMcjHf4CEPy7f6+aQbT4JwUIf+MD0gngj896UOwOYmAUglrqpxhYKsnD5Z9wIDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T22:54:06.443312Z","bundle_sha256":"9df842997396095ea943029fa4056dde8d9f579afffbe87e5488be027ec1dbf7"}}