{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:P6QN7KFAOBUHVNFYK45AD6LV6E","short_pith_number":"pith:P6QN7KFA","canonical_record":{"source":{"id":"2307.07797","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2023-07-15T13:06:06Z","cross_cats_sorted":[],"title_canon_sha256":"f8dc95eb274c8d8262ecc4610513bb4017c9e782d80608afec5a7d3b63b9c9f0","abstract_canon_sha256":"64445c4330013e144d8b673d84054594906039c7b78dd0ba6d8e7fb3a9a7b18a"},"schema_version":"1.0"},"canonical_sha256":"7fa0dfa8a070687ab4b8573a01f975f108a7fda2e977793aa47aca0eed85a185","source":{"kind":"arxiv","id":"2307.07797","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2307.07797","created_at":"2026-07-05T06:37:15Z"},{"alias_kind":"arxiv_version","alias_value":"2307.07797v2","created_at":"2026-07-05T06:37:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2307.07797","created_at":"2026-07-05T06:37:15Z"},{"alias_kind":"pith_short_12","alias_value":"P6QN7KFAOBUH","created_at":"2026-07-05T06:37:15Z"},{"alias_kind":"pith_short_16","alias_value":"P6QN7KFAOBUHVNFY","created_at":"2026-07-05T06:37:15Z"},{"alias_kind":"pith_short_8","alias_value":"P6QN7KFA","created_at":"2026-07-05T06:37:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:P6QN7KFAOBUHVNFYK45AD6LV6E","target":"record","payload":{"canonical_record":{"source":{"id":"2307.07797","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2023-07-15T13:06:06Z","cross_cats_sorted":[],"title_canon_sha256":"f8dc95eb274c8d8262ecc4610513bb4017c9e782d80608afec5a7d3b63b9c9f0","abstract_canon_sha256":"64445c4330013e144d8b673d84054594906039c7b78dd0ba6d8e7fb3a9a7b18a"},"schema_version":"1.0"},"canonical_sha256":"7fa0dfa8a070687ab4b8573a01f975f108a7fda2e977793aa47aca0eed85a185","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:37:15.476038Z","signature_b64":"IE4o+r/1dza9G9pDs2FF1k0ODdQsA/+KUjvSrhM7c9EL6pVqnxdeFhQlr2z2eBS/AvMoTfQ+sI7ca9dpo4fWAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7fa0dfa8a070687ab4b8573a01f975f108a7fda2e977793aa47aca0eed85a185","last_reissued_at":"2026-07-05T06:37:15.475688Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:37:15.475688Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2307.07797","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":"2026-07-05T06:37:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PBtXYolnKEy+gsjRo0hL7EL4HX5W4oXv5D/Mu9yEKc5jDpmrRSFH5/riq0xEUH85MvgydKZkacWFpwmW7hSaCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T09:55:20.492965Z"},"content_sha256":"880482f5f66f7bb01467f604957bac049ef6e579a73f196b2abede0e7d167a6b","schema_version":"1.0","event_id":"sha256:880482f5f66f7bb01467f604957bac049ef6e579a73f196b2abede0e7d167a6b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:P6QN7KFAOBUHVNFYK45AD6LV6E","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Painlev\\'e-Gullstrand coordinates discontinuity in the quantum Oppenheimer-Snyder model","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Carlo Rovelli, Farshid Soltani, Francesco Fazzini","submitted_at":"2023-07-15T13:06:06Z","abstract_excerpt":"A metric that describes a collapsing star and the surrounding black hole geometry accounting for quantum gravity effects has been derived independently by different research groups. There is consensus regarding this metric up until the star reaches its minimum radius, but there is disagreement about what happens past this event. The discrepancy stems from the appearance of a discontinuity in the Hamiltonian evolution of the metric components in Painlev\\'e-Gullstrand coordinates. Here we show that the continuous geometry that describes this phenomenon is represented by a discontinuous metric wh"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2307.07797","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/2307.07797/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":"2026-07-05T06:37:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"q/BFVohU68PTqIz/X8aFGwOR3j7dNtB7tb0z/EUi0UVZHEfwssn3EKBt1xkSM3j5msyJtY0NXfgTpi35cNe8CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T09:55:20.493817Z"},"content_sha256":"61b85212a28cc6776d459fa0ce993ca32c274f2123fc70814d676067ce4f2d22","schema_version":"1.0","event_id":"sha256:61b85212a28cc6776d459fa0ce993ca32c274f2123fc70814d676067ce4f2d22"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/P6QN7KFAOBUHVNFYK45AD6LV6E/bundle.json","state_url":"https://pith.science/pith/P6QN7KFAOBUHVNFYK45AD6LV6E/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/P6QN7KFAOBUHVNFYK45AD6LV6E/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":"2026-08-10T09:55:20Z","links":{"resolver":"https://pith.science/pith/P6QN7KFAOBUHVNFYK45AD6LV6E","bundle":"https://pith.science/pith/P6QN7KFAOBUHVNFYK45AD6LV6E/bundle.json","state":"https://pith.science/pith/P6QN7KFAOBUHVNFYK45AD6LV6E/state.json","well_known_bundle":"https://pith.science/.well-known/pith/P6QN7KFAOBUHVNFYK45AD6LV6E/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:P6QN7KFAOBUHVNFYK45AD6LV6E","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":"64445c4330013e144d8b673d84054594906039c7b78dd0ba6d8e7fb3a9a7b18a","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2023-07-15T13:06:06Z","title_canon_sha256":"f8dc95eb274c8d8262ecc4610513bb4017c9e782d80608afec5a7d3b63b9c9f0"},"schema_version":"1.0","source":{"id":"2307.07797","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2307.07797","created_at":"2026-07-05T06:37:15Z"},{"alias_kind":"arxiv_version","alias_value":"2307.07797v2","created_at":"2026-07-05T06:37:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2307.07797","created_at":"2026-07-05T06:37:15Z"},{"alias_kind":"pith_short_12","alias_value":"P6QN7KFAOBUH","created_at":"2026-07-05T06:37:15Z"},{"alias_kind":"pith_short_16","alias_value":"P6QN7KFAOBUHVNFY","created_at":"2026-07-05T06:37:15Z"},{"alias_kind":"pith_short_8","alias_value":"P6QN7KFA","created_at":"2026-07-05T06:37:15Z"}],"graph_snapshots":[{"event_id":"sha256:61b85212a28cc6776d459fa0ce993ca32c274f2123fc70814d676067ce4f2d22","target":"graph","created_at":"2026-07-05T06:37:15Z","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/2307.07797/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A metric that describes a collapsing star and the surrounding black hole geometry accounting for quantum gravity effects has been derived independently by different research groups. There is consensus regarding this metric up until the star reaches its minimum radius, but there is disagreement about what happens past this event. The discrepancy stems from the appearance of a discontinuity in the Hamiltonian evolution of the metric components in Painlev\\'e-Gullstrand coordinates. Here we show that the continuous geometry that describes this phenomenon is represented by a discontinuous metric wh","authors_text":"Carlo Rovelli, Farshid Soltani, Francesco Fazzini","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2023-07-15T13:06:06Z","title":"Painlev\\'e-Gullstrand coordinates discontinuity in the quantum Oppenheimer-Snyder model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2307.07797","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":"sha256:880482f5f66f7bb01467f604957bac049ef6e579a73f196b2abede0e7d167a6b","target":"record","created_at":"2026-07-05T06:37:15Z","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":"64445c4330013e144d8b673d84054594906039c7b78dd0ba6d8e7fb3a9a7b18a","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2023-07-15T13:06:06Z","title_canon_sha256":"f8dc95eb274c8d8262ecc4610513bb4017c9e782d80608afec5a7d3b63b9c9f0"},"schema_version":"1.0","source":{"id":"2307.07797","kind":"arxiv","version":2}},"canonical_sha256":"7fa0dfa8a070687ab4b8573a01f975f108a7fda2e977793aa47aca0eed85a185","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7fa0dfa8a070687ab4b8573a01f975f108a7fda2e977793aa47aca0eed85a185","first_computed_at":"2026-07-05T06:37:15.475688Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:37:15.475688Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"IE4o+r/1dza9G9pDs2FF1k0ODdQsA/+KUjvSrhM7c9EL6pVqnxdeFhQlr2z2eBS/AvMoTfQ+sI7ca9dpo4fWAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T06:37:15.476038Z","signed_message":"canonical_sha256_bytes"},"source_id":"2307.07797","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:880482f5f66f7bb01467f604957bac049ef6e579a73f196b2abede0e7d167a6b","sha256:61b85212a28cc6776d459fa0ce993ca32c274f2123fc70814d676067ce4f2d22"],"state_sha256":"edd74f234967c5b0657d3250b9b314d58c71ce4a60a44b98b149da2026760693"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VD9ELhQqknE/W7QWr8Pz5/VWMMxOTBfsCVxFGWBuCsTACRei/ghRKUUpSc3gkn9DP/S9gsX0yp3oy/t8u2+1Bw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-10T09:55:20.503782Z","bundle_sha256":"e2cc7ffb2c49275a9bdc8c8f55658d51f69824ab279e8f2642a2abf6111b2a71"}}