{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2006:XVB4Q5D4WGCRVOJOGFNF2LCSFJ","short_pith_number":"pith:XVB4Q5D4","canonical_record":{"source":{"id":"astro-ph/0609439","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-09-15T14:06:56Z","cross_cats_sorted":[],"title_canon_sha256":"774c233b47b4e8ec3d6d6a37a627193849d0410afa409a84c640d76f8ae56160","abstract_canon_sha256":"c4d8b1e49bf5b16e66f69fc93ee6f06ae1989a95609408e5f0c1d29b5b0dafe9"},"schema_version":"1.0"},"canonical_sha256":"bd43c8747cb1851ab92e315a5d2c522a7b0f4bdde36ddb5ce0c8fc46af9e670e","source":{"kind":"arxiv","id":"astro-ph/0609439","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0609439","created_at":"2026-05-18T04:28:57Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0609439v1","created_at":"2026-05-18T04:28:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0609439","created_at":"2026-05-18T04:28:57Z"},{"alias_kind":"pith_short_12","alias_value":"XVB4Q5D4WGCR","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_16","alias_value":"XVB4Q5D4WGCRVOJO","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_8","alias_value":"XVB4Q5D4","created_at":"2026-05-18T12:25:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2006:XVB4Q5D4WGCRVOJOGFNF2LCSFJ","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0609439","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-09-15T14:06:56Z","cross_cats_sorted":[],"title_canon_sha256":"774c233b47b4e8ec3d6d6a37a627193849d0410afa409a84c640d76f8ae56160","abstract_canon_sha256":"c4d8b1e49bf5b16e66f69fc93ee6f06ae1989a95609408e5f0c1d29b5b0dafe9"},"schema_version":"1.0"},"canonical_sha256":"bd43c8747cb1851ab92e315a5d2c522a7b0f4bdde36ddb5ce0c8fc46af9e670e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:28:57.701566Z","signature_b64":"tSgXrdGYw1ZMKgllBctHu1uR7NLVVly+15cR1/BVwtKDGIussXC7ni1ISqwekpzNKOLCPidC3IrrizVDZE9yDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bd43c8747cb1851ab92e315a5d2c522a7b0f4bdde36ddb5ce0c8fc46af9e670e","last_reissued_at":"2026-05-18T04:28:57.700991Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:28:57.700991Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0609439","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":"2026-05-18T04:28:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7VdN2zlO7RpWVcgZBOr0Gtu3Q3Kzyh31nZDbXwT4w5dKQvJq/IBu1dfJzuEP4P1HIfcW14XkH7wmF7HrlFDHAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T14:29:09.788837Z"},"content_sha256":"a61cc9cd40aa5177a9a0cb75e8f60adb3ea2864ac79cfdb5038b0f88d95b9991","schema_version":"1.0","event_id":"sha256:a61cc9cd40aa5177a9a0cb75e8f60adb3ea2864ac79cfdb5038b0f88d95b9991"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2006:XVB4Q5D4WGCRVOJOGFNF2LCSFJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"ACS photometry of the globular cluster B514","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Buzzoni, F. Fusi Pecci, L. Federici, M. Bellazzini, S. Galleti","submitted_at":"2006-09-15T14:06:56Z","abstract_excerpt":"We present deep F606W, F814W ACS photometry of the recently discovered globular cluster B514, the outermost known globular in the M31 galaxy. The cluster appears quite extended and member stars are unequivocally identified out to ~200 pc from the center. The Color Magnitude Diagram reveals a steep Red Giant Branch (RGB), and a Horizontal Branch (HB) extending blue ward of the instability strip, indicating that B514 is a classical old metal-poor globular cluster. The RGB locus and the position of the RGB Bump are both consistent with a metallicity [Fe/H] ~ -1.8, in excellent agreement with spec"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0609439","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":"2026-05-18T04:28:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8TwVJXKCzMe6eob/CbeK+fEfnpQv3o/nXyNUZRriz2RUJvs0oG/8xFI/kdqsYNsczdUtPNykxnRtOFdHkjxeAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T14:29:09.789212Z"},"content_sha256":"b5d19fb6cb5c64aacdb9c7fc1783c624e5464054b4b5c5c1ff6df7f45d5e8d0d","schema_version":"1.0","event_id":"sha256:b5d19fb6cb5c64aacdb9c7fc1783c624e5464054b4b5c5c1ff6df7f45d5e8d0d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XVB4Q5D4WGCRVOJOGFNF2LCSFJ/bundle.json","state_url":"https://pith.science/pith/XVB4Q5D4WGCRVOJOGFNF2LCSFJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XVB4Q5D4WGCRVOJOGFNF2LCSFJ/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":"2026-06-02T14:29:09Z","links":{"resolver":"https://pith.science/pith/XVB4Q5D4WGCRVOJOGFNF2LCSFJ","bundle":"https://pith.science/pith/XVB4Q5D4WGCRVOJOGFNF2LCSFJ/bundle.json","state":"https://pith.science/pith/XVB4Q5D4WGCRVOJOGFNF2LCSFJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XVB4Q5D4WGCRVOJOGFNF2LCSFJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:XVB4Q5D4WGCRVOJOGFNF2LCSFJ","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":"c4d8b1e49bf5b16e66f69fc93ee6f06ae1989a95609408e5f0c1d29b5b0dafe9","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-09-15T14:06:56Z","title_canon_sha256":"774c233b47b4e8ec3d6d6a37a627193849d0410afa409a84c640d76f8ae56160"},"schema_version":"1.0","source":{"id":"astro-ph/0609439","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0609439","created_at":"2026-05-18T04:28:57Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0609439v1","created_at":"2026-05-18T04:28:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0609439","created_at":"2026-05-18T04:28:57Z"},{"alias_kind":"pith_short_12","alias_value":"XVB4Q5D4WGCR","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_16","alias_value":"XVB4Q5D4WGCRVOJO","created_at":"2026-05-18T12:25:54Z"},{"alias_kind":"pith_short_8","alias_value":"XVB4Q5D4","created_at":"2026-05-18T12:25:54Z"}],"graph_snapshots":[{"event_id":"sha256:b5d19fb6cb5c64aacdb9c7fc1783c624e5464054b4b5c5c1ff6df7f45d5e8d0d","target":"graph","created_at":"2026-05-18T04:28:57Z","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 present deep F606W, F814W ACS photometry of the recently discovered globular cluster B514, the outermost known globular in the M31 galaxy. The cluster appears quite extended and member stars are unequivocally identified out to ~200 pc from the center. The Color Magnitude Diagram reveals a steep Red Giant Branch (RGB), and a Horizontal Branch (HB) extending blue ward of the instability strip, indicating that B514 is a classical old metal-poor globular cluster. The RGB locus and the position of the RGB Bump are both consistent with a metallicity [Fe/H] ~ -1.8, in excellent agreement with spec","authors_text":"A. Buzzoni, F. Fusi Pecci, L. Federici, M. Bellazzini, S. Galleti","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2006-09-15T14:06:56Z","title":"ACS photometry of the globular cluster B514"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0609439","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:a61cc9cd40aa5177a9a0cb75e8f60adb3ea2864ac79cfdb5038b0f88d95b9991","target":"record","created_at":"2026-05-18T04:28:57Z","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":"c4d8b1e49bf5b16e66f69fc93ee6f06ae1989a95609408e5f0c1d29b5b0dafe9","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-09-15T14:06:56Z","title_canon_sha256":"774c233b47b4e8ec3d6d6a37a627193849d0410afa409a84c640d76f8ae56160"},"schema_version":"1.0","source":{"id":"astro-ph/0609439","kind":"arxiv","version":1}},"canonical_sha256":"bd43c8747cb1851ab92e315a5d2c522a7b0f4bdde36ddb5ce0c8fc46af9e670e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bd43c8747cb1851ab92e315a5d2c522a7b0f4bdde36ddb5ce0c8fc46af9e670e","first_computed_at":"2026-05-18T04:28:57.700991Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:28:57.700991Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tSgXrdGYw1ZMKgllBctHu1uR7NLVVly+15cR1/BVwtKDGIussXC7ni1ISqwekpzNKOLCPidC3IrrizVDZE9yDg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:28:57.701566Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0609439","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a61cc9cd40aa5177a9a0cb75e8f60adb3ea2864ac79cfdb5038b0f88d95b9991","sha256:b5d19fb6cb5c64aacdb9c7fc1783c624e5464054b4b5c5c1ff6df7f45d5e8d0d"],"state_sha256":"beeb0f9c5eb2da520a9eef83d0dc60251d13e3879badd8d722c9334bddb118cd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aOG8QETX28WomPGwPQqlDdhy2gKWIA+kIlczE2uc+YK6JAuKVUs/n0Bm5vayEMjlGYveTCWTTTYs7U88HAhODQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T14:29:09.791434Z","bundle_sha256":"2edfa3e419df012f1a7f19745724d521d2c26ee48eb608f98d0c3fc09d620076"}}