{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:DEBTQ2DIHHKD6MGNG3MRUCJJ5Q","short_pith_number":"pith:DEBTQ2DI","canonical_record":{"source":{"id":"1311.0760","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-11-04T16:34:22Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"065d0a7db3b14a1985d6fab7efdd144c8d7b9f8723c08c8ff978df6ab0f915f4","abstract_canon_sha256":"5dfcc98c48e948106434be047a05444bbcd2054f9b9d7798476f8c14d4121d1c"},"schema_version":"1.0"},"canonical_sha256":"190338686839d43f30cd36d91a0929ec27887472ae9bbc8714dee8f006bfa2df","source":{"kind":"arxiv","id":"1311.0760","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1311.0760","created_at":"2026-05-18T01:46:39Z"},{"alias_kind":"arxiv_version","alias_value":"1311.0760v2","created_at":"2026-05-18T01:46:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1311.0760","created_at":"2026-05-18T01:46:39Z"},{"alias_kind":"pith_short_12","alias_value":"DEBTQ2DIHHKD","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_16","alias_value":"DEBTQ2DIHHKD6MGN","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_8","alias_value":"DEBTQ2DI","created_at":"2026-05-18T12:27:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:DEBTQ2DIHHKD6MGNG3MRUCJJ5Q","target":"record","payload":{"canonical_record":{"source":{"id":"1311.0760","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-11-04T16:34:22Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"065d0a7db3b14a1985d6fab7efdd144c8d7b9f8723c08c8ff978df6ab0f915f4","abstract_canon_sha256":"5dfcc98c48e948106434be047a05444bbcd2054f9b9d7798476f8c14d4121d1c"},"schema_version":"1.0"},"canonical_sha256":"190338686839d43f30cd36d91a0929ec27887472ae9bbc8714dee8f006bfa2df","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:46:39.343238Z","signature_b64":"rMHbg7VMIaohBPgm7ko61AfBCHcZ58brTge3cxYFszCi0aWEWTWEo7c0RN0A3n16AbPbNCPtR8tJQNSEMWHrAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"190338686839d43f30cd36d91a0929ec27887472ae9bbc8714dee8f006bfa2df","last_reissued_at":"2026-05-18T01:46:39.342764Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:46:39.342764Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1311.0760","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:46:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yZnSSF72mECWCEbRXUHaZ5vRRtEEcVobOQQop5fiCKaugd8MGPycL4KvW03Z+irFQznAjs9XZTtEkAdNdlMIBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T05:15:06.083522Z"},"content_sha256":"54d42d77d111dfb321bef203024a438b8afbfcfbecba0ec6f0597647d8fa6fc3","schema_version":"1.0","event_id":"sha256:54d42d77d111dfb321bef203024a438b8afbfcfbecba0ec6f0597647d8fa6fc3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:DEBTQ2DIHHKD6MGNG3MRUCJJ5Q","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Investigating potential planetary nebula/cluster pairs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"Alex C. Gormaz-Matamala, Andres-Nicolas Chene, Charles Bonatto, Christian Moni Bidin, Daniel Majaess, Dante Minniti, David Turner, Doug Geisler, Francesco Mauro, Giovanni Carraro, Jura Borissova, Radostin G. Kurtev, Wolfgang Gieren","submitted_at":"2013-11-04T16:34:22Z","abstract_excerpt":"Fundamental parameters characterizing the end-state of intermediate-mass stars may be constrained by discovering planetary nebulae (PNe) in open clusters (OCs). Cluster membership may be exploited to establish the distance, luminosity, age, and physical size for PNe, and the intrinsic luminosity and mass of its central star. Four potential PN-OC associations were investigated, to assess the cluster membership for the PNe. Radial velocities were measured from intermediate-resolution optical spectra, complemented with previous estimates in the literature. When the radial velocity study supported"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.0760","kind":"arxiv","version":2},"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":"2026-05-18T01:46:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+RKvx31zvHVzLQk/g/aUT13F3sufcBzZcXKSQs2oXhhjIdNr5glw/+oipy9HGoyr0Nf2z0idKrgdUUe40XIXBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T05:15:06.083878Z"},"content_sha256":"701e0cf8eb2491013507c8694b0fe1deddca90f6500d215c1ce56065062d8546","schema_version":"1.0","event_id":"sha256:701e0cf8eb2491013507c8694b0fe1deddca90f6500d215c1ce56065062d8546"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DEBTQ2DIHHKD6MGNG3MRUCJJ5Q/bundle.json","state_url":"https://pith.science/pith/DEBTQ2DIHHKD6MGNG3MRUCJJ5Q/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DEBTQ2DIHHKD6MGNG3MRUCJJ5Q/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":"2026-06-03T05:15:06Z","links":{"resolver":"https://pith.science/pith/DEBTQ2DIHHKD6MGNG3MRUCJJ5Q","bundle":"https://pith.science/pith/DEBTQ2DIHHKD6MGNG3MRUCJJ5Q/bundle.json","state":"https://pith.science/pith/DEBTQ2DIHHKD6MGNG3MRUCJJ5Q/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DEBTQ2DIHHKD6MGNG3MRUCJJ5Q/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:DEBTQ2DIHHKD6MGNG3MRUCJJ5Q","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":"5dfcc98c48e948106434be047a05444bbcd2054f9b9d7798476f8c14d4121d1c","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-11-04T16:34:22Z","title_canon_sha256":"065d0a7db3b14a1985d6fab7efdd144c8d7b9f8723c08c8ff978df6ab0f915f4"},"schema_version":"1.0","source":{"id":"1311.0760","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1311.0760","created_at":"2026-05-18T01:46:39Z"},{"alias_kind":"arxiv_version","alias_value":"1311.0760v2","created_at":"2026-05-18T01:46:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1311.0760","created_at":"2026-05-18T01:46:39Z"},{"alias_kind":"pith_short_12","alias_value":"DEBTQ2DIHHKD","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_16","alias_value":"DEBTQ2DIHHKD6MGN","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_8","alias_value":"DEBTQ2DI","created_at":"2026-05-18T12:27:43Z"}],"graph_snapshots":[{"event_id":"sha256:701e0cf8eb2491013507c8694b0fe1deddca90f6500d215c1ce56065062d8546","target":"graph","created_at":"2026-05-18T01:46:39Z","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":"Fundamental parameters characterizing the end-state of intermediate-mass stars may be constrained by discovering planetary nebulae (PNe) in open clusters (OCs). Cluster membership may be exploited to establish the distance, luminosity, age, and physical size for PNe, and the intrinsic luminosity and mass of its central star. Four potential PN-OC associations were investigated, to assess the cluster membership for the PNe. Radial velocities were measured from intermediate-resolution optical spectra, complemented with previous estimates in the literature. When the radial velocity study supported","authors_text":"Alex C. Gormaz-Matamala, Andres-Nicolas Chene, Charles Bonatto, Christian Moni Bidin, Daniel Majaess, Dante Minniti, David Turner, Doug Geisler, Francesco Mauro, Giovanni Carraro, Jura Borissova, Radostin G. Kurtev, Wolfgang Gieren","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-11-04T16:34:22Z","title":"Investigating potential planetary nebula/cluster pairs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.0760","kind":"arxiv","version":2},"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":"sha256:54d42d77d111dfb321bef203024a438b8afbfcfbecba0ec6f0597647d8fa6fc3","target":"record","created_at":"2026-05-18T01:46:39Z","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":"5dfcc98c48e948106434be047a05444bbcd2054f9b9d7798476f8c14d4121d1c","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2013-11-04T16:34:22Z","title_canon_sha256":"065d0a7db3b14a1985d6fab7efdd144c8d7b9f8723c08c8ff978df6ab0f915f4"},"schema_version":"1.0","source":{"id":"1311.0760","kind":"arxiv","version":2}},"canonical_sha256":"190338686839d43f30cd36d91a0929ec27887472ae9bbc8714dee8f006bfa2df","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"190338686839d43f30cd36d91a0929ec27887472ae9bbc8714dee8f006bfa2df","first_computed_at":"2026-05-18T01:46:39.342764Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:46:39.342764Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rMHbg7VMIaohBPgm7ko61AfBCHcZ58brTge3cxYFszCi0aWEWTWEo7c0RN0A3n16AbPbNCPtR8tJQNSEMWHrAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:46:39.343238Z","signed_message":"canonical_sha256_bytes"},"source_id":"1311.0760","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:54d42d77d111dfb321bef203024a438b8afbfcfbecba0ec6f0597647d8fa6fc3","sha256:701e0cf8eb2491013507c8694b0fe1deddca90f6500d215c1ce56065062d8546"],"state_sha256":"53c7f6edcc4702a65b668cae19eb72c7c9fe805186639d9ed2c9d0179fcbb06e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lOj5qg+ttNwi0MQiCGCKklK+bMyoHcnaIT/MYkLFcSX9cw/OF7THFcgb6I/FEGDHRJq9NV3m2jto/MF/kZTfAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T05:15:06.085996Z","bundle_sha256":"2af357eb3af46b1ba46081c887ddd025b1b3d3863b6fc20762f33eef64d3fef3"}}