{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:CJQ5IZTGTDZDKDVELK7SWKOXMH","short_pith_number":"pith:CJQ5IZTG","canonical_record":{"source":{"id":"1509.00329","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-09-01T14:53:10Z","cross_cats_sorted":[],"title_canon_sha256":"93bbc82b51e84c5bf39605836d8202524fb49f0558c546bd868a848d35a0dfaa","abstract_canon_sha256":"0d71ef0a3342ff775f7e14a8e51f0b14ab2054dacdf56ef5b5762912f6ef5822"},"schema_version":"1.0"},"canonical_sha256":"1261d4666698f2350ea45abf2b29d761d60bce4e23485b72a0a085617b190a45","source":{"kind":"arxiv","id":"1509.00329","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.00329","created_at":"2026-05-18T01:31:30Z"},{"alias_kind":"arxiv_version","alias_value":"1509.00329v1","created_at":"2026-05-18T01:31:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.00329","created_at":"2026-05-18T01:31:30Z"},{"alias_kind":"pith_short_12","alias_value":"CJQ5IZTGTDZD","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_16","alias_value":"CJQ5IZTGTDZDKDVE","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_8","alias_value":"CJQ5IZTG","created_at":"2026-05-18T12:29:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:CJQ5IZTGTDZDKDVELK7SWKOXMH","target":"record","payload":{"canonical_record":{"source":{"id":"1509.00329","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-09-01T14:53:10Z","cross_cats_sorted":[],"title_canon_sha256":"93bbc82b51e84c5bf39605836d8202524fb49f0558c546bd868a848d35a0dfaa","abstract_canon_sha256":"0d71ef0a3342ff775f7e14a8e51f0b14ab2054dacdf56ef5b5762912f6ef5822"},"schema_version":"1.0"},"canonical_sha256":"1261d4666698f2350ea45abf2b29d761d60bce4e23485b72a0a085617b190a45","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:31:30.973996Z","signature_b64":"LJIJzCw+mbEgvJ5dV5AWhaE0rXSdLgnp/rjKOe1teid0bxjHDHRH61bn+ef4HjKwm4+B7EoRIhXgS/u3mfMnDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1261d4666698f2350ea45abf2b29d761d60bce4e23485b72a0a085617b190a45","last_reissued_at":"2026-05-18T01:31:30.973377Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:31:30.973377Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1509.00329","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":"2026-05-18T01:31:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"K53S+g1h8pAzfnsle6QX+aa9SCFWQzqU9MOZXQ0WoSp18BGHZJBxz8gwl6Ez09UgXMUJFNQZa5+P4n4xTLsEAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T14:27:58.319150Z"},"content_sha256":"36b006cd8ffa047565a1def2d1a44e6a1f3359b26b4fa968c7620dd1ed38a031","schema_version":"1.0","event_id":"sha256:36b006cd8ffa047565a1def2d1a44e6a1f3359b26b4fa968c7620dd1ed38a031"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:CJQ5IZTGTDZDKDVELK7SWKOXMH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Discovery of a second outbursting hyperluminous X-ray source","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"M. A. P. Torres, M. Heida, P. G. Jonker","submitted_at":"2015-09-01T14:53:10Z","abstract_excerpt":"We report on six Chandra and one HST/WFC3 observation of CXO J122518.6+144545, discovered by Jonker et al. (2010) as a candidate hyperluminous X-ray source (HLX), X-ray bright supernova or recoiling supermassive black hole at $L_X = 2.2 \\times 10^{41}$ erg/s (if associated with the galaxy at 182 Mpc). We detect a new outburst of the source in a Chandra image obtained on Nov 20, 2014 and show that the X-ray count rate varies by a factor $> 60$. New HST/WFC3 observations obtained in 2014 show that the optical counterpart is still visible at $g' = 27.1 \\pm 0.1$, $1 \\pm 0.1$ magnitude fainter than"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.00329","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":"2026-05-18T01:31:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DpRnPtUIuleLWEf+THwmdn1jwZRBQTWIZiPrL7QEyR5nDYeOw1WR2iamrxqfHhWMqK603etBCLUql0yKd0F0BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T14:27:58.319810Z"},"content_sha256":"f51e8fbe2d9730fe94901c08d0774ae7c100c06451b65c50566cc9f2edbe700d","schema_version":"1.0","event_id":"sha256:f51e8fbe2d9730fe94901c08d0774ae7c100c06451b65c50566cc9f2edbe700d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CJQ5IZTGTDZDKDVELK7SWKOXMH/bundle.json","state_url":"https://pith.science/pith/CJQ5IZTGTDZDKDVELK7SWKOXMH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CJQ5IZTGTDZDKDVELK7SWKOXMH/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":"2026-05-31T14:27:58Z","links":{"resolver":"https://pith.science/pith/CJQ5IZTGTDZDKDVELK7SWKOXMH","bundle":"https://pith.science/pith/CJQ5IZTGTDZDKDVELK7SWKOXMH/bundle.json","state":"https://pith.science/pith/CJQ5IZTGTDZDKDVELK7SWKOXMH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CJQ5IZTGTDZDKDVELK7SWKOXMH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:CJQ5IZTGTDZDKDVELK7SWKOXMH","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":"0d71ef0a3342ff775f7e14a8e51f0b14ab2054dacdf56ef5b5762912f6ef5822","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-09-01T14:53:10Z","title_canon_sha256":"93bbc82b51e84c5bf39605836d8202524fb49f0558c546bd868a848d35a0dfaa"},"schema_version":"1.0","source":{"id":"1509.00329","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.00329","created_at":"2026-05-18T01:31:30Z"},{"alias_kind":"arxiv_version","alias_value":"1509.00329v1","created_at":"2026-05-18T01:31:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.00329","created_at":"2026-05-18T01:31:30Z"},{"alias_kind":"pith_short_12","alias_value":"CJQ5IZTGTDZD","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_16","alias_value":"CJQ5IZTGTDZDKDVE","created_at":"2026-05-18T12:29:14Z"},{"alias_kind":"pith_short_8","alias_value":"CJQ5IZTG","created_at":"2026-05-18T12:29:14Z"}],"graph_snapshots":[{"event_id":"sha256:f51e8fbe2d9730fe94901c08d0774ae7c100c06451b65c50566cc9f2edbe700d","target":"graph","created_at":"2026-05-18T01:31:30Z","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 report on six Chandra and one HST/WFC3 observation of CXO J122518.6+144545, discovered by Jonker et al. (2010) as a candidate hyperluminous X-ray source (HLX), X-ray bright supernova or recoiling supermassive black hole at $L_X = 2.2 \\times 10^{41}$ erg/s (if associated with the galaxy at 182 Mpc). We detect a new outburst of the source in a Chandra image obtained on Nov 20, 2014 and show that the X-ray count rate varies by a factor $> 60$. New HST/WFC3 observations obtained in 2014 show that the optical counterpart is still visible at $g' = 27.1 \\pm 0.1$, $1 \\pm 0.1$ magnitude fainter than","authors_text":"M. A. P. Torres, M. Heida, P. G. Jonker","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-09-01T14:53:10Z","title":"Discovery of a second outbursting hyperluminous X-ray source"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.00329","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":"sha256:36b006cd8ffa047565a1def2d1a44e6a1f3359b26b4fa968c7620dd1ed38a031","target":"record","created_at":"2026-05-18T01:31:30Z","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":"0d71ef0a3342ff775f7e14a8e51f0b14ab2054dacdf56ef5b5762912f6ef5822","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-09-01T14:53:10Z","title_canon_sha256":"93bbc82b51e84c5bf39605836d8202524fb49f0558c546bd868a848d35a0dfaa"},"schema_version":"1.0","source":{"id":"1509.00329","kind":"arxiv","version":1}},"canonical_sha256":"1261d4666698f2350ea45abf2b29d761d60bce4e23485b72a0a085617b190a45","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1261d4666698f2350ea45abf2b29d761d60bce4e23485b72a0a085617b190a45","first_computed_at":"2026-05-18T01:31:30.973377Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:31:30.973377Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LJIJzCw+mbEgvJ5dV5AWhaE0rXSdLgnp/rjKOe1teid0bxjHDHRH61bn+ef4HjKwm4+B7EoRIhXgS/u3mfMnDw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:31:30.973996Z","signed_message":"canonical_sha256_bytes"},"source_id":"1509.00329","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:36b006cd8ffa047565a1def2d1a44e6a1f3359b26b4fa968c7620dd1ed38a031","sha256:f51e8fbe2d9730fe94901c08d0774ae7c100c06451b65c50566cc9f2edbe700d"],"state_sha256":"214ca497b4fd974ab3c9b4dbeb77a5bfe55fbc364f21b77dad8949bce4b88635"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LE1p3siPgI6qf28RRz89uvKieGhAgq385frpS1dbt+HI+KHqRTVEA62QtSirn7q1/4chS6iwrHGqQ3HJjZiQDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T14:27:58.324358Z","bundle_sha256":"3e62af949287c26dba5586a8db5518682859bde949c2717030dff169f0358da3"}}