{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:7VM3ZBMD7VHOXIKSOOH2IIBTON","short_pith_number":"pith:7VM3ZBMD","canonical_record":{"source":{"id":"1204.5800","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-04-26T00:43:08Z","cross_cats_sorted":[],"title_canon_sha256":"2891a2d5a9121b1cf104545d2461bd0751555b2fcc783f9d6d51ab675f60ebe7","abstract_canon_sha256":"388853025902c3659db066092b730d191f6772360e179ad887076d728cfb3402"},"schema_version":"1.0"},"canonical_sha256":"fd59bc8583fd4eeba152738fa4203373533bff62d732dd61b1326e1ad49ed8b7","source":{"kind":"arxiv","id":"1204.5800","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.5800","created_at":"2026-05-18T01:57:44Z"},{"alias_kind":"arxiv_version","alias_value":"1204.5800v1","created_at":"2026-05-18T01:57:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.5800","created_at":"2026-05-18T01:57:44Z"},{"alias_kind":"pith_short_12","alias_value":"7VM3ZBMD7VHO","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_16","alias_value":"7VM3ZBMD7VHOXIKS","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_8","alias_value":"7VM3ZBMD","created_at":"2026-05-18T12:26:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:7VM3ZBMD7VHOXIKSOOH2IIBTON","target":"record","payload":{"canonical_record":{"source":{"id":"1204.5800","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-04-26T00:43:08Z","cross_cats_sorted":[],"title_canon_sha256":"2891a2d5a9121b1cf104545d2461bd0751555b2fcc783f9d6d51ab675f60ebe7","abstract_canon_sha256":"388853025902c3659db066092b730d191f6772360e179ad887076d728cfb3402"},"schema_version":"1.0"},"canonical_sha256":"fd59bc8583fd4eeba152738fa4203373533bff62d732dd61b1326e1ad49ed8b7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:57:44.089006Z","signature_b64":"bHjJUZWURMZVl/XY8rmDRKZX86d3pG6Ps+Rw47TAxDypQsEuWe6WtyEPxJ7JxxyQ+yBGl1pXfc52KJTAkt7bDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fd59bc8583fd4eeba152738fa4203373533bff62d732dd61b1326e1ad49ed8b7","last_reissued_at":"2026-05-18T01:57:44.088429Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:57:44.088429Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1204.5800","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":"2026-05-18T01:57:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9X5KMXunGf4TkGKl2PDtqLxnc8Y20VIUFltvWJtGwFgqo8ycYcdiA7HlvSR8PuprqJjtxPCrDTZhI846M/d3AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T22:46:06.352273Z"},"content_sha256":"0b06c4a2c65d3f6b6e0ece991b09a45767bca4228afc23eec5c3eb0a17aa3f9f","schema_version":"1.0","event_id":"sha256:0b06c4a2c65d3f6b6e0ece991b09a45767bca4228afc23eec5c3eb0a17aa3f9f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:7VM3ZBMD7VHOXIKSOOH2IIBTON","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Limits on [OIII] 5007 emission from NGC4472's globular clusters: constraints on planetary nebulae and ultraluminous black hole X-ray binaries in globular clusters","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Mark B. Peacock, Stephen E. Zepf, Thomas J. Maccarone","submitted_at":"2012-04-26T00:43:08Z","abstract_excerpt":"We have searched for [OIII] 5007 emission in high resolution spectroscopic data from Flames/Giraffe VLT observations of 174 massive globular clusters (GCs) in NGC4472. No planetary nebulae (PNe) are observed in these clusters, constraining the number of PNe per bolometric luminosity, \\alpha<0.8*10^{-7}PN/L_{\\odot}. This is significantly lower than the rate predicted from stellar evolution, if all stars produce PNe. Comparing our results to populations of PNe in galaxies, we find most galaxies have a higher \\alpha than these GCs (more PNe per bolometric luminosity - though some massive early-ty"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.5800","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":"2026-05-18T01:57:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6ABa4TjB1FRRFaksUt0VOdbjGg+JnPnHYTXUsqvQoJ4N6oQY8E7Q/6/GZ7rwAaRcneN8Aj4bae1TLfY8mMUzDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T22:46:06.352658Z"},"content_sha256":"ac5f2e8d56a77db0a25f9d8807540d4c585f23af3580507f7469999ec0c1af79","schema_version":"1.0","event_id":"sha256:ac5f2e8d56a77db0a25f9d8807540d4c585f23af3580507f7469999ec0c1af79"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7VM3ZBMD7VHOXIKSOOH2IIBTON/bundle.json","state_url":"https://pith.science/pith/7VM3ZBMD7VHOXIKSOOH2IIBTON/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7VM3ZBMD7VHOXIKSOOH2IIBTON/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":"2026-05-29T22:46:06Z","links":{"resolver":"https://pith.science/pith/7VM3ZBMD7VHOXIKSOOH2IIBTON","bundle":"https://pith.science/pith/7VM3ZBMD7VHOXIKSOOH2IIBTON/bundle.json","state":"https://pith.science/pith/7VM3ZBMD7VHOXIKSOOH2IIBTON/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7VM3ZBMD7VHOXIKSOOH2IIBTON/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:7VM3ZBMD7VHOXIKSOOH2IIBTON","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":"388853025902c3659db066092b730d191f6772360e179ad887076d728cfb3402","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-04-26T00:43:08Z","title_canon_sha256":"2891a2d5a9121b1cf104545d2461bd0751555b2fcc783f9d6d51ab675f60ebe7"},"schema_version":"1.0","source":{"id":"1204.5800","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.5800","created_at":"2026-05-18T01:57:44Z"},{"alias_kind":"arxiv_version","alias_value":"1204.5800v1","created_at":"2026-05-18T01:57:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.5800","created_at":"2026-05-18T01:57:44Z"},{"alias_kind":"pith_short_12","alias_value":"7VM3ZBMD7VHO","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_16","alias_value":"7VM3ZBMD7VHOXIKS","created_at":"2026-05-18T12:26:58Z"},{"alias_kind":"pith_short_8","alias_value":"7VM3ZBMD","created_at":"2026-05-18T12:26:58Z"}],"graph_snapshots":[{"event_id":"sha256:ac5f2e8d56a77db0a25f9d8807540d4c585f23af3580507f7469999ec0c1af79","target":"graph","created_at":"2026-05-18T01:57:44Z","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 have searched for [OIII] 5007 emission in high resolution spectroscopic data from Flames/Giraffe VLT observations of 174 massive globular clusters (GCs) in NGC4472. No planetary nebulae (PNe) are observed in these clusters, constraining the number of PNe per bolometric luminosity, \\alpha<0.8*10^{-7}PN/L_{\\odot}. This is significantly lower than the rate predicted from stellar evolution, if all stars produce PNe. Comparing our results to populations of PNe in galaxies, we find most galaxies have a higher \\alpha than these GCs (more PNe per bolometric luminosity - though some massive early-ty","authors_text":"Mark B. Peacock, Stephen E. Zepf, Thomas J. Maccarone","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-04-26T00:43:08Z","title":"Limits on [OIII] 5007 emission from NGC4472's globular clusters: constraints on planetary nebulae and ultraluminous black hole X-ray binaries in globular clusters"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.5800","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":"sha256:0b06c4a2c65d3f6b6e0ece991b09a45767bca4228afc23eec5c3eb0a17aa3f9f","target":"record","created_at":"2026-05-18T01:57:44Z","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":"388853025902c3659db066092b730d191f6772360e179ad887076d728cfb3402","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-04-26T00:43:08Z","title_canon_sha256":"2891a2d5a9121b1cf104545d2461bd0751555b2fcc783f9d6d51ab675f60ebe7"},"schema_version":"1.0","source":{"id":"1204.5800","kind":"arxiv","version":1}},"canonical_sha256":"fd59bc8583fd4eeba152738fa4203373533bff62d732dd61b1326e1ad49ed8b7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fd59bc8583fd4eeba152738fa4203373533bff62d732dd61b1326e1ad49ed8b7","first_computed_at":"2026-05-18T01:57:44.088429Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:57:44.088429Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bHjJUZWURMZVl/XY8rmDRKZX86d3pG6Ps+Rw47TAxDypQsEuWe6WtyEPxJ7JxxyQ+yBGl1pXfc52KJTAkt7bDw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:57:44.089006Z","signed_message":"canonical_sha256_bytes"},"source_id":"1204.5800","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0b06c4a2c65d3f6b6e0ece991b09a45767bca4228afc23eec5c3eb0a17aa3f9f","sha256:ac5f2e8d56a77db0a25f9d8807540d4c585f23af3580507f7469999ec0c1af79"],"state_sha256":"3e0d33c32f4256ab8ef8c0b073fbf055472237e1b2bf3bdf51a6028d4974d4d1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HecD4qKDrMN0/nkX8geGs3tt6WT6LrNFUMvOKnf6On6/A0PWWQ3PPcWTtJ5wsZci4mVUlL3lybS//NQpcBi4DA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T22:46:06.355170Z","bundle_sha256":"68b65d9dfe6543ce63241f675fc1840b7356a06e13a6894009bfba37dd75a44b"}}