{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:SCKS2O5BPOHLZCELIRMHY5SDUX","short_pith_number":"pith:SCKS2O5B","canonical_record":{"source":{"id":"1710.11014","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-10-30T15:31:32Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"5f42447497f17eb2b0423ed47bffd9d6857948f7762d253c04e2bae6cf776d3d","abstract_canon_sha256":"a6deaedb4d59af9280cc798b9ee7785ca87ac9b482b37abd1ed611760b32b10c"},"schema_version":"1.0"},"canonical_sha256":"90952d3ba17b8ebc888b44587c7643a5e96e04a329186f0d2eafd62c56d2d88c","source":{"kind":"arxiv","id":"1710.11014","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.11014","created_at":"2026-05-18T00:07:37Z"},{"alias_kind":"arxiv_version","alias_value":"1710.11014v1","created_at":"2026-05-18T00:07:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.11014","created_at":"2026-05-18T00:07:37Z"},{"alias_kind":"pith_short_12","alias_value":"SCKS2O5BPOHL","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_16","alias_value":"SCKS2O5BPOHLZCEL","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_8","alias_value":"SCKS2O5B","created_at":"2026-05-18T12:31:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:SCKS2O5BPOHLZCELIRMHY5SDUX","target":"record","payload":{"canonical_record":{"source":{"id":"1710.11014","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-10-30T15:31:32Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"5f42447497f17eb2b0423ed47bffd9d6857948f7762d253c04e2bae6cf776d3d","abstract_canon_sha256":"a6deaedb4d59af9280cc798b9ee7785ca87ac9b482b37abd1ed611760b32b10c"},"schema_version":"1.0"},"canonical_sha256":"90952d3ba17b8ebc888b44587c7643a5e96e04a329186f0d2eafd62c56d2d88c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:07:37.850968Z","signature_b64":"Ze3odVFqtEd3fnOyfBG8lywWC9nAQjsAocyQapA3tMAtFzesNSoE1vfPaeNd+FDaN/aC5g4xB4c76IZiXgnoDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"90952d3ba17b8ebc888b44587c7643a5e96e04a329186f0d2eafd62c56d2d88c","last_reissued_at":"2026-05-18T00:07:37.850261Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:07:37.850261Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1710.11014","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":"2026-05-18T00:07:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jLCjzk66Cduokgi/6ueOw+vYiL8rskEn4ErJzjCRvLj5tWbgDHEVfReoCwG5zrCd1V6RAePrbeiQKnC5yAGxDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T23:22:56.801760Z"},"content_sha256":"7234db04c44bb92ed234073263ea7a8edec02ac73c377f106ec3b1bb3fb37857","schema_version":"1.0","event_id":"sha256:7234db04c44bb92ed234073263ea7a8edec02ac73c377f106ec3b1bb3fb37857"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:SCKS2O5BPOHLZCELIRMHY5SDUX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The oldest stars of the bulge: new information on the ancient Galaxy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"Cristina Chiappini, Gabriele Cescutti, Raphael Hirschi","submitted_at":"2017-10-30T15:31:32Z","abstract_excerpt":"Recently the search for the oldest stars have started to focus on the Bulge region. The Galactic bulge hosts extremely old stars, with ages compatible with the ages of the oldest halo stars. The data coming from these recent observations present new chemical signatures and therefore provide complementary constraints to those already found in the halo. So, the study of the oldest bulge stars can improve dramatically the constraints on the nature of first stars and how they polluted the pristine ISM of our Galaxy. We present our first results regarding the light elements (CNO) and the neutron ca"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.11014","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":"2026-05-18T00:07:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ks3oB3bGANTIgsLSfBl7JKF66CFJHsgRZQdZWAGiUbRN1KSEVvfnyovvN2cdGgtNGYATGWI7yPuhVh1DQ0g5DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T23:22:56.802438Z"},"content_sha256":"06bb853dc9cee1be071aea219d721177f92e7327036ce0f3f793a9b010836f92","schema_version":"1.0","event_id":"sha256:06bb853dc9cee1be071aea219d721177f92e7327036ce0f3f793a9b010836f92"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SCKS2O5BPOHLZCELIRMHY5SDUX/bundle.json","state_url":"https://pith.science/pith/SCKS2O5BPOHLZCELIRMHY5SDUX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SCKS2O5BPOHLZCELIRMHY5SDUX/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":"2026-05-31T23:22:56Z","links":{"resolver":"https://pith.science/pith/SCKS2O5BPOHLZCELIRMHY5SDUX","bundle":"https://pith.science/pith/SCKS2O5BPOHLZCELIRMHY5SDUX/bundle.json","state":"https://pith.science/pith/SCKS2O5BPOHLZCELIRMHY5SDUX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SCKS2O5BPOHLZCELIRMHY5SDUX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:SCKS2O5BPOHLZCELIRMHY5SDUX","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":"a6deaedb4d59af9280cc798b9ee7785ca87ac9b482b37abd1ed611760b32b10c","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-10-30T15:31:32Z","title_canon_sha256":"5f42447497f17eb2b0423ed47bffd9d6857948f7762d253c04e2bae6cf776d3d"},"schema_version":"1.0","source":{"id":"1710.11014","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.11014","created_at":"2026-05-18T00:07:37Z"},{"alias_kind":"arxiv_version","alias_value":"1710.11014v1","created_at":"2026-05-18T00:07:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.11014","created_at":"2026-05-18T00:07:37Z"},{"alias_kind":"pith_short_12","alias_value":"SCKS2O5BPOHL","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_16","alias_value":"SCKS2O5BPOHLZCEL","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_8","alias_value":"SCKS2O5B","created_at":"2026-05-18T12:31:43Z"}],"graph_snapshots":[{"event_id":"sha256:06bb853dc9cee1be071aea219d721177f92e7327036ce0f3f793a9b010836f92","target":"graph","created_at":"2026-05-18T00:07:37Z","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":"Recently the search for the oldest stars have started to focus on the Bulge region. The Galactic bulge hosts extremely old stars, with ages compatible with the ages of the oldest halo stars. The data coming from these recent observations present new chemical signatures and therefore provide complementary constraints to those already found in the halo. So, the study of the oldest bulge stars can improve dramatically the constraints on the nature of first stars and how they polluted the pristine ISM of our Galaxy. We present our first results regarding the light elements (CNO) and the neutron ca","authors_text":"Cristina Chiappini, Gabriele Cescutti, Raphael Hirschi","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-10-30T15:31:32Z","title":"The oldest stars of the bulge: new information on the ancient Galaxy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.11014","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":"sha256:7234db04c44bb92ed234073263ea7a8edec02ac73c377f106ec3b1bb3fb37857","target":"record","created_at":"2026-05-18T00:07:37Z","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":"a6deaedb4d59af9280cc798b9ee7785ca87ac9b482b37abd1ed611760b32b10c","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-10-30T15:31:32Z","title_canon_sha256":"5f42447497f17eb2b0423ed47bffd9d6857948f7762d253c04e2bae6cf776d3d"},"schema_version":"1.0","source":{"id":"1710.11014","kind":"arxiv","version":1}},"canonical_sha256":"90952d3ba17b8ebc888b44587c7643a5e96e04a329186f0d2eafd62c56d2d88c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"90952d3ba17b8ebc888b44587c7643a5e96e04a329186f0d2eafd62c56d2d88c","first_computed_at":"2026-05-18T00:07:37.850261Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:07:37.850261Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Ze3odVFqtEd3fnOyfBG8lywWC9nAQjsAocyQapA3tMAtFzesNSoE1vfPaeNd+FDaN/aC5g4xB4c76IZiXgnoDg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:07:37.850968Z","signed_message":"canonical_sha256_bytes"},"source_id":"1710.11014","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7234db04c44bb92ed234073263ea7a8edec02ac73c377f106ec3b1bb3fb37857","sha256:06bb853dc9cee1be071aea219d721177f92e7327036ce0f3f793a9b010836f92"],"state_sha256":"00e48ba1c57e482806729573e3dceee890d78298871f19f1264c0261a31b6b59"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"W2ma2Dbl48pjn79nQ3r7JSIr7byschWIQDz/MvbK1rgARprD+ytNY/9ecGvi4C9sb8Eh7wT2hPx654uuxO+iCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T23:22:56.807185Z","bundle_sha256":"768a562b79bf43fd466290909b1009a035079950d9c2b6e493f072a47a769f9f"}}