{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:GCVPWMMZ4KKV37BBPQ6KFHLDTO","short_pith_number":"pith:GCVPWMMZ","canonical_record":{"source":{"id":"1501.00086","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-12-31T07:07:01Z","cross_cats_sorted":[],"title_canon_sha256":"26aa38e4fb3a57ee5f38320d2de60d6237a6d1290b05f7d41e172911275ec33d","abstract_canon_sha256":"b265212e9b3dd0a8c52e447e1d75eae46531b3133f0bea63ac3902740c3644c3"},"schema_version":"1.0"},"canonical_sha256":"30aafb3199e2955dfc217c3ca29d639b87ea07bf210281e601464a3d9bf2b7b6","source":{"kind":"arxiv","id":"1501.00086","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1501.00086","created_at":"2026-05-18T02:30:10Z"},{"alias_kind":"arxiv_version","alias_value":"1501.00086v1","created_at":"2026-05-18T02:30:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.00086","created_at":"2026-05-18T02:30:10Z"},{"alias_kind":"pith_short_12","alias_value":"GCVPWMMZ4KKV","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_16","alias_value":"GCVPWMMZ4KKV37BB","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_8","alias_value":"GCVPWMMZ","created_at":"2026-05-18T12:28:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:GCVPWMMZ4KKV37BBPQ6KFHLDTO","target":"record","payload":{"canonical_record":{"source":{"id":"1501.00086","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-12-31T07:07:01Z","cross_cats_sorted":[],"title_canon_sha256":"26aa38e4fb3a57ee5f38320d2de60d6237a6d1290b05f7d41e172911275ec33d","abstract_canon_sha256":"b265212e9b3dd0a8c52e447e1d75eae46531b3133f0bea63ac3902740c3644c3"},"schema_version":"1.0"},"canonical_sha256":"30aafb3199e2955dfc217c3ca29d639b87ea07bf210281e601464a3d9bf2b7b6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:30:10.186440Z","signature_b64":"2IqZizZKFJZKnjyclmOc40cKMDg+Tr3PFXle8hLX6TwdQNW/vmD4PXwY1Yob+62M+MgDQqOMlVWY020BXtW8BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"30aafb3199e2955dfc217c3ca29d639b87ea07bf210281e601464a3d9bf2b7b6","last_reissued_at":"2026-05-18T02:30:10.185978Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:30:10.185978Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1501.00086","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":"2026-05-18T02:30:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6xJsbdsRSrOWYMuz6QzTNtlYABF0LrxixrEJZ5rEswYzWVC84UJbQeP83sWoms5N0pbMD4dQyX30e69PjkfCCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T23:35:58.540500Z"},"content_sha256":"19620caf78468fbbf9ab99b092efabe3b7a192f96629d1590b4f064944037b66","schema_version":"1.0","event_id":"sha256:19620caf78468fbbf9ab99b092efabe3b7a192f96629d1590b4f064944037b66"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:GCVPWMMZ4KKV37BBPQ6KFHLDTO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Pulsars in Globular Clusters with the SKA","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. Possenti, C.G. Bassa, D.R. Lorimer, I.H. Stairs, J.W.T. Hessels, M. Bailes, P.C.C. Freire, R. Lynch, S.M. Ransom","submitted_at":"2014-12-31T07:07:01Z","abstract_excerpt":"Globular clusters are highly efficient radio pulsar factories. These pulsars can be used as precision probes of the clusters' structure, gas content, magnetic field, and formation history; some of them are also highly interesting in their own right because they probe exotic stellar evolution scenarios as well as the physics of dense matter, accretion, and gravity. Deep searches with SKA1-MID and SKA1-LOW will plausibly double to triple the known population. Such searches will only require one to a few tied-array beams, and can be done during early commissioning of the telescope - before an all"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.00086","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":"2026-05-18T02:30:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EuWPWLlXrUgwH4/ry3EmgTsari5gbWN7at6puaxtQem18SI/6QhFDQ0GvKg8kqsqAOW+6NQeZyOiA0FUUWffDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T23:35:58.541306Z"},"content_sha256":"12af40f74c5848a8ab081b113c0407e1b80ba629813b799d0392479bf725a2ec","schema_version":"1.0","event_id":"sha256:12af40f74c5848a8ab081b113c0407e1b80ba629813b799d0392479bf725a2ec"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GCVPWMMZ4KKV37BBPQ6KFHLDTO/bundle.json","state_url":"https://pith.science/pith/GCVPWMMZ4KKV37BBPQ6KFHLDTO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GCVPWMMZ4KKV37BBPQ6KFHLDTO/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":"2026-05-30T23:35:58Z","links":{"resolver":"https://pith.science/pith/GCVPWMMZ4KKV37BBPQ6KFHLDTO","bundle":"https://pith.science/pith/GCVPWMMZ4KKV37BBPQ6KFHLDTO/bundle.json","state":"https://pith.science/pith/GCVPWMMZ4KKV37BBPQ6KFHLDTO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GCVPWMMZ4KKV37BBPQ6KFHLDTO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:GCVPWMMZ4KKV37BBPQ6KFHLDTO","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":"b265212e9b3dd0a8c52e447e1d75eae46531b3133f0bea63ac3902740c3644c3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-12-31T07:07:01Z","title_canon_sha256":"26aa38e4fb3a57ee5f38320d2de60d6237a6d1290b05f7d41e172911275ec33d"},"schema_version":"1.0","source":{"id":"1501.00086","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1501.00086","created_at":"2026-05-18T02:30:10Z"},{"alias_kind":"arxiv_version","alias_value":"1501.00086v1","created_at":"2026-05-18T02:30:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.00086","created_at":"2026-05-18T02:30:10Z"},{"alias_kind":"pith_short_12","alias_value":"GCVPWMMZ4KKV","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_16","alias_value":"GCVPWMMZ4KKV37BB","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_8","alias_value":"GCVPWMMZ","created_at":"2026-05-18T12:28:30Z"}],"graph_snapshots":[{"event_id":"sha256:12af40f74c5848a8ab081b113c0407e1b80ba629813b799d0392479bf725a2ec","target":"graph","created_at":"2026-05-18T02:30:10Z","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":"Globular clusters are highly efficient radio pulsar factories. These pulsars can be used as precision probes of the clusters' structure, gas content, magnetic field, and formation history; some of them are also highly interesting in their own right because they probe exotic stellar evolution scenarios as well as the physics of dense matter, accretion, and gravity. Deep searches with SKA1-MID and SKA1-LOW will plausibly double to triple the known population. Such searches will only require one to a few tied-array beams, and can be done during early commissioning of the telescope - before an all","authors_text":"A. Possenti, C.G. Bassa, D.R. Lorimer, I.H. Stairs, J.W.T. Hessels, M. Bailes, P.C.C. Freire, R. Lynch, S.M. Ransom","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-12-31T07:07:01Z","title":"Pulsars in Globular Clusters with the SKA"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.00086","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":"sha256:19620caf78468fbbf9ab99b092efabe3b7a192f96629d1590b4f064944037b66","target":"record","created_at":"2026-05-18T02:30:10Z","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":"b265212e9b3dd0a8c52e447e1d75eae46531b3133f0bea63ac3902740c3644c3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2014-12-31T07:07:01Z","title_canon_sha256":"26aa38e4fb3a57ee5f38320d2de60d6237a6d1290b05f7d41e172911275ec33d"},"schema_version":"1.0","source":{"id":"1501.00086","kind":"arxiv","version":1}},"canonical_sha256":"30aafb3199e2955dfc217c3ca29d639b87ea07bf210281e601464a3d9bf2b7b6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"30aafb3199e2955dfc217c3ca29d639b87ea07bf210281e601464a3d9bf2b7b6","first_computed_at":"2026-05-18T02:30:10.185978Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:30:10.185978Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2IqZizZKFJZKnjyclmOc40cKMDg+Tr3PFXle8hLX6TwdQNW/vmD4PXwY1Yob+62M+MgDQqOMlVWY020BXtW8BQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:30:10.186440Z","signed_message":"canonical_sha256_bytes"},"source_id":"1501.00086","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:19620caf78468fbbf9ab99b092efabe3b7a192f96629d1590b4f064944037b66","sha256:12af40f74c5848a8ab081b113c0407e1b80ba629813b799d0392479bf725a2ec"],"state_sha256":"0e0c8baf7b22e8628333ddb97605d923fe67f11e7b0b026eca95e115087f89ce"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cBfDeAE0xpWdmAIo0JPZ0z6g8f6pd71BkZgCE7Mn+33RElowiHNyh5ZsmtV2hnfWsgXeJ2hWqXwVQ9Y+zMwCCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T23:35:58.543800Z","bundle_sha256":"382a19e2a9f2c321c039a3b01c28a94022cd5a6516dbfcba8d47f81a42479b70"}}