{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:YTS2TBCWXS42KVDNKRTGOT4DSC","short_pith_number":"pith:YTS2TBCW","canonical_record":{"source":{"id":"2506.15619","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-06-18T16:51:21Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"566ecdd3a488c648dfe9d88a1549e9e114175bee480446252e8312e5f6aa27f1","abstract_canon_sha256":"618a5a8c41e7667a4ed778f56595aabe9a0e1507f2d42cb16169bf0026fdb33b"},"schema_version":"1.0"},"canonical_sha256":"c4e5a98456bcb9a5546d5466674f8390805340e4b3742789e756dbb7f85edd21","source":{"kind":"arxiv","id":"2506.15619","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.15619","created_at":"2026-07-05T11:53:04Z"},{"alias_kind":"arxiv_version","alias_value":"2506.15619v2","created_at":"2026-07-05T11:53:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.15619","created_at":"2026-07-05T11:53:04Z"},{"alias_kind":"pith_short_12","alias_value":"YTS2TBCWXS42","created_at":"2026-07-05T11:53:04Z"},{"alias_kind":"pith_short_16","alias_value":"YTS2TBCWXS42KVDN","created_at":"2026-07-05T11:53:04Z"},{"alias_kind":"pith_short_8","alias_value":"YTS2TBCW","created_at":"2026-07-05T11:53:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:YTS2TBCWXS42KVDNKRTGOT4DSC","target":"record","payload":{"canonical_record":{"source":{"id":"2506.15619","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-06-18T16:51:21Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"566ecdd3a488c648dfe9d88a1549e9e114175bee480446252e8312e5f6aa27f1","abstract_canon_sha256":"618a5a8c41e7667a4ed778f56595aabe9a0e1507f2d42cb16169bf0026fdb33b"},"schema_version":"1.0"},"canonical_sha256":"c4e5a98456bcb9a5546d5466674f8390805340e4b3742789e756dbb7f85edd21","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:53:04.472085Z","signature_b64":"ZNUafLal4jZBAAi19+yzpH2LKq3IJzGoCFxHlfJZeivU6AAlawmS0WP4j0L+1lNOeErEBdkCsSRaOmi2bCvBAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c4e5a98456bcb9a5546d5466674f8390805340e4b3742789e756dbb7f85edd21","last_reissued_at":"2026-07-05T11:53:04.471596Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:53:04.471596Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2506.15619","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":"2026-07-05T11:53:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kj4h7h85wJPS1jhBcdMAFCnNL5Qt2rghbJkBMuOA9YWhJxaYhRfixS5/vT3NLKE0iiba231tkuxe0XVu3moKAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T06:34:03.709648Z"},"content_sha256":"a403376f474f46f123fc9568e1206032974f79e9ac51641c4a65bcfb1e835d79","schema_version":"1.0","event_id":"sha256:a403376f474f46f123fc9568e1206032974f79e9ac51641c4a65bcfb1e835d79"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:YTS2TBCWXS42KVDNKRTGOT4DSC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Further Evidence for a Direct-Collapse Origin of the Supermassive Black Hole at the Center of the Infinity Galaxy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.GA","authors_text":"Connor Jennings, Gabriel Brammer, Imad Pasha, Josephine F. W. Baggen, Pieter van Dokkum","submitted_at":"2025-06-18T16:51:21Z","abstract_excerpt":"The z=1.14 $\\infty$ galaxy consists of two ringed nuclei with an active supermassive black hole (SMBH) in between them. The system is likely the result of a nearly face-on collision between two disk galaxies with massive bulges. In van Dokkum et al. (2025) we suggested that the SMBH may have formed from shocked and compressed gas at the collision site, in a runaway gravitational collapse. Here we test this hypothesis using newly obtained JWST NIRSpec IFU observations. We first confirm that the system has a cloud of gas in between the nuclei that is photo-ionized by an AGN-like object near its "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.15619","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2506.15619/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T11:53:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZhdTn/vsjqCpiWr6pFoqUWz+qfJrEfX03HU1/Dd26wqgDybrSmIcZvVmaSnUCUYwHgBeVSvIenCpJ2pwO2AsBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T06:34:03.715736Z"},"content_sha256":"0e991dd8a940a51d7c389e06777d291adcbe58a2b82af3f99b30da643ea19a46","schema_version":"1.0","event_id":"sha256:0e991dd8a940a51d7c389e06777d291adcbe58a2b82af3f99b30da643ea19a46"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YTS2TBCWXS42KVDNKRTGOT4DSC/bundle.json","state_url":"https://pith.science/pith/YTS2TBCWXS42KVDNKRTGOT4DSC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YTS2TBCWXS42KVDNKRTGOT4DSC/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":"2026-08-11T06:34:03Z","links":{"resolver":"https://pith.science/pith/YTS2TBCWXS42KVDNKRTGOT4DSC","bundle":"https://pith.science/pith/YTS2TBCWXS42KVDNKRTGOT4DSC/bundle.json","state":"https://pith.science/pith/YTS2TBCWXS42KVDNKRTGOT4DSC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YTS2TBCWXS42KVDNKRTGOT4DSC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:YTS2TBCWXS42KVDNKRTGOT4DSC","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":"618a5a8c41e7667a4ed778f56595aabe9a0e1507f2d42cb16169bf0026fdb33b","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-06-18T16:51:21Z","title_canon_sha256":"566ecdd3a488c648dfe9d88a1549e9e114175bee480446252e8312e5f6aa27f1"},"schema_version":"1.0","source":{"id":"2506.15619","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2506.15619","created_at":"2026-07-05T11:53:04Z"},{"alias_kind":"arxiv_version","alias_value":"2506.15619v2","created_at":"2026-07-05T11:53:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2506.15619","created_at":"2026-07-05T11:53:04Z"},{"alias_kind":"pith_short_12","alias_value":"YTS2TBCWXS42","created_at":"2026-07-05T11:53:04Z"},{"alias_kind":"pith_short_16","alias_value":"YTS2TBCWXS42KVDN","created_at":"2026-07-05T11:53:04Z"},{"alias_kind":"pith_short_8","alias_value":"YTS2TBCW","created_at":"2026-07-05T11:53:04Z"}],"graph_snapshots":[{"event_id":"sha256:0e991dd8a940a51d7c389e06777d291adcbe58a2b82af3f99b30da643ea19a46","target":"graph","created_at":"2026-07-05T11:53:04Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2506.15619/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The z=1.14 $\\infty$ galaxy consists of two ringed nuclei with an active supermassive black hole (SMBH) in between them. The system is likely the result of a nearly face-on collision between two disk galaxies with massive bulges. In van Dokkum et al. (2025) we suggested that the SMBH may have formed from shocked and compressed gas at the collision site, in a runaway gravitational collapse. Here we test this hypothesis using newly obtained JWST NIRSpec IFU observations. We first confirm that the system has a cloud of gas in between the nuclei that is photo-ionized by an AGN-like object near its ","authors_text":"Connor Jennings, Gabriel Brammer, Imad Pasha, Josephine F. W. Baggen, Pieter van Dokkum","cross_cats":["astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-06-18T16:51:21Z","title":"Further Evidence for a Direct-Collapse Origin of the Supermassive Black Hole at the Center of the Infinity Galaxy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.15619","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:a403376f474f46f123fc9568e1206032974f79e9ac51641c4a65bcfb1e835d79","target":"record","created_at":"2026-07-05T11:53:04Z","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":"618a5a8c41e7667a4ed778f56595aabe9a0e1507f2d42cb16169bf0026fdb33b","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-06-18T16:51:21Z","title_canon_sha256":"566ecdd3a488c648dfe9d88a1549e9e114175bee480446252e8312e5f6aa27f1"},"schema_version":"1.0","source":{"id":"2506.15619","kind":"arxiv","version":2}},"canonical_sha256":"c4e5a98456bcb9a5546d5466674f8390805340e4b3742789e756dbb7f85edd21","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c4e5a98456bcb9a5546d5466674f8390805340e4b3742789e756dbb7f85edd21","first_computed_at":"2026-07-05T11:53:04.471596Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:53:04.471596Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZNUafLal4jZBAAi19+yzpH2LKq3IJzGoCFxHlfJZeivU6AAlawmS0WP4j0L+1lNOeErEBdkCsSRaOmi2bCvBAw==","signature_status":"signed_v1","signed_at":"2026-07-05T11:53:04.472085Z","signed_message":"canonical_sha256_bytes"},"source_id":"2506.15619","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a403376f474f46f123fc9568e1206032974f79e9ac51641c4a65bcfb1e835d79","sha256:0e991dd8a940a51d7c389e06777d291adcbe58a2b82af3f99b30da643ea19a46"],"state_sha256":"59e1b9e5b39b3297569efb1cc1363c457076fa2d06cff24701c45f2a580ef721"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jD7bKmIgfQUfSG2IQV4XmTInwxtDiB9wc5+jwHg9A718dsto+fOcnuF5WosgDRI4l4cYqSQIzX1xMEz0EbddAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-11T06:34:03.724715Z","bundle_sha256":"cf3d521bbdb9f76c22c1a89b3e47fc7c722dbc075ad9cc55bb23844e77f8faf4"}}