{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:K7CLQN6ZEZHMAXEMAD6ECGHBSG","short_pith_number":"pith:K7CLQN6Z","canonical_record":{"source":{"id":"2601.18618","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2026-01-26T15:57:34Z","cross_cats_sorted":[],"title_canon_sha256":"5e2e009d4c4cbfbe00e9522d4078128e465ee5a08cb9dbe92ef6d16ee4384b4a","abstract_canon_sha256":"d0b6834275043eac125c5f895d82ef1c47a826bc2d19ce4899cf0e700e0d530a"},"schema_version":"1.0"},"canonical_sha256":"57c4b837d9264ec05c8c00fc4118e191ba3a74d32428bd1d51f1917955e0e1d2","source":{"kind":"arxiv","id":"2601.18618","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2601.18618","created_at":"2026-05-20T00:05:41Z"},{"alias_kind":"arxiv_version","alias_value":"2601.18618v2","created_at":"2026-05-20T00:05:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2601.18618","created_at":"2026-05-20T00:05:41Z"},{"alias_kind":"pith_short_12","alias_value":"K7CLQN6ZEZHM","created_at":"2026-05-20T00:05:41Z"},{"alias_kind":"pith_short_16","alias_value":"K7CLQN6ZEZHMAXEM","created_at":"2026-05-20T00:05:41Z"},{"alias_kind":"pith_short_8","alias_value":"K7CLQN6Z","created_at":"2026-05-20T00:05:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:K7CLQN6ZEZHMAXEMAD6ECGHBSG","target":"record","payload":{"canonical_record":{"source":{"id":"2601.18618","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2026-01-26T15:57:34Z","cross_cats_sorted":[],"title_canon_sha256":"5e2e009d4c4cbfbe00e9522d4078128e465ee5a08cb9dbe92ef6d16ee4384b4a","abstract_canon_sha256":"d0b6834275043eac125c5f895d82ef1c47a826bc2d19ce4899cf0e700e0d530a"},"schema_version":"1.0"},"canonical_sha256":"57c4b837d9264ec05c8c00fc4118e191ba3a74d32428bd1d51f1917955e0e1d2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-20T00:05:41.097056Z","signature_b64":"k/faz8Ge5Lon8zsuNTag+FBwrWhI/J219mgQCq3ov9ozojMuhbe6VQyFcizsP57OqtVz78IbuJ2RUht0myTfAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"57c4b837d9264ec05c8c00fc4118e191ba3a74d32428bd1d51f1917955e0e1d2","last_reissued_at":"2026-05-20T00:05:41.096219Z","signature_status":"signed_v1","first_computed_at":"2026-05-20T00:05:41.096219Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2601.18618","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":"2026-05-20T00:05:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4u5aa6cZPHKd31vYei3FW0Foz2V0X8yeFkAtI59YcDya5E85mc15mWOnKPghzl5XtnFaOGKqDc3ePE/KiD5SAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T19:54:40.665354Z"},"content_sha256":"3e6c38132a6bc6023d8da7b91c9ffd3ac33183e37b9cb6503cb6b430de5b6b90","schema_version":"1.0","event_id":"sha256:3e6c38132a6bc6023d8da7b91c9ffd3ac33183e37b9cb6503cb6b430de5b6b90"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:K7CLQN6ZEZHMAXEMAD6ECGHBSG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantum gravitational stellar evolution beyond shell-crossing singularities","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Francesco Fazzini, Micha{\\l} Bobula","submitted_at":"2026-01-26T15:57:34Z","abstract_excerpt":"Models of effective stellar collapse inspired by loop quantum gravity predict a bounce when the stellar energy density reaches the Planck scale, typically followed by the formation of shell-crossing singularities. This work aims to extend the spacetime beyond these singularities by employing a Hamiltonian formulation of the Darmois-Israel junction conditions, treating the singularity as a non-isolated thin dust shell. By construction, the shell's motion remains timelike throughout the entire evolution, regardless of the amount of initial stellar mass, and the induced metric on the shell remain"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2601.18618","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/2601.18618/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":"2026-05-20T00:05:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MvLVLbrPq2C9E6JX14N86Q9AA9cPjvzhAMz3TlFazP4YW9Dh7dcQESxltoZi/UDHybgGuigj0e/DsK9qQE+3Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T19:54:40.666082Z"},"content_sha256":"342fe08fa9df19e1453d201b6ba84473bc89c7b11c8e74e1ee21ceabcf216ce0","schema_version":"1.0","event_id":"sha256:342fe08fa9df19e1453d201b6ba84473bc89c7b11c8e74e1ee21ceabcf216ce0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/K7CLQN6ZEZHMAXEMAD6ECGHBSG/bundle.json","state_url":"https://pith.science/pith/K7CLQN6ZEZHMAXEMAD6ECGHBSG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/K7CLQN6ZEZHMAXEMAD6ECGHBSG/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":"2026-05-25T19:54:40Z","links":{"resolver":"https://pith.science/pith/K7CLQN6ZEZHMAXEMAD6ECGHBSG","bundle":"https://pith.science/pith/K7CLQN6ZEZHMAXEMAD6ECGHBSG/bundle.json","state":"https://pith.science/pith/K7CLQN6ZEZHMAXEMAD6ECGHBSG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/K7CLQN6ZEZHMAXEMAD6ECGHBSG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:K7CLQN6ZEZHMAXEMAD6ECGHBSG","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":"d0b6834275043eac125c5f895d82ef1c47a826bc2d19ce4899cf0e700e0d530a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2026-01-26T15:57:34Z","title_canon_sha256":"5e2e009d4c4cbfbe00e9522d4078128e465ee5a08cb9dbe92ef6d16ee4384b4a"},"schema_version":"1.0","source":{"id":"2601.18618","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2601.18618","created_at":"2026-05-20T00:05:41Z"},{"alias_kind":"arxiv_version","alias_value":"2601.18618v2","created_at":"2026-05-20T00:05:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2601.18618","created_at":"2026-05-20T00:05:41Z"},{"alias_kind":"pith_short_12","alias_value":"K7CLQN6ZEZHM","created_at":"2026-05-20T00:05:41Z"},{"alias_kind":"pith_short_16","alias_value":"K7CLQN6ZEZHMAXEM","created_at":"2026-05-20T00:05:41Z"},{"alias_kind":"pith_short_8","alias_value":"K7CLQN6Z","created_at":"2026-05-20T00:05:41Z"}],"graph_snapshots":[{"event_id":"sha256:342fe08fa9df19e1453d201b6ba84473bc89c7b11c8e74e1ee21ceabcf216ce0","target":"graph","created_at":"2026-05-20T00:05:41Z","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/2601.18618/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Models of effective stellar collapse inspired by loop quantum gravity predict a bounce when the stellar energy density reaches the Planck scale, typically followed by the formation of shell-crossing singularities. This work aims to extend the spacetime beyond these singularities by employing a Hamiltonian formulation of the Darmois-Israel junction conditions, treating the singularity as a non-isolated thin dust shell. By construction, the shell's motion remains timelike throughout the entire evolution, regardless of the amount of initial stellar mass, and the induced metric on the shell remain","authors_text":"Francesco Fazzini, Micha{\\l} Bobula","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2026-01-26T15:57:34Z","title":"Quantum gravitational stellar evolution beyond shell-crossing singularities"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2601.18618","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":"sha256:3e6c38132a6bc6023d8da7b91c9ffd3ac33183e37b9cb6503cb6b430de5b6b90","target":"record","created_at":"2026-05-20T00:05:41Z","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":"d0b6834275043eac125c5f895d82ef1c47a826bc2d19ce4899cf0e700e0d530a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2026-01-26T15:57:34Z","title_canon_sha256":"5e2e009d4c4cbfbe00e9522d4078128e465ee5a08cb9dbe92ef6d16ee4384b4a"},"schema_version":"1.0","source":{"id":"2601.18618","kind":"arxiv","version":2}},"canonical_sha256":"57c4b837d9264ec05c8c00fc4118e191ba3a74d32428bd1d51f1917955e0e1d2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"57c4b837d9264ec05c8c00fc4118e191ba3a74d32428bd1d51f1917955e0e1d2","first_computed_at":"2026-05-20T00:05:41.096219Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-20T00:05:41.096219Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"k/faz8Ge5Lon8zsuNTag+FBwrWhI/J219mgQCq3ov9ozojMuhbe6VQyFcizsP57OqtVz78IbuJ2RUht0myTfAg==","signature_status":"signed_v1","signed_at":"2026-05-20T00:05:41.097056Z","signed_message":"canonical_sha256_bytes"},"source_id":"2601.18618","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3e6c38132a6bc6023d8da7b91c9ffd3ac33183e37b9cb6503cb6b430de5b6b90","sha256:342fe08fa9df19e1453d201b6ba84473bc89c7b11c8e74e1ee21ceabcf216ce0"],"state_sha256":"1b093ffe453797829419ce5b1c84d7023a9fcbc502d2d1ecc3ff332f57942d04"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"31oKI4cAyEGafhaJoko4hTsD0ELa0jZVFobXcQ3hcp1P2d8VMPXimjtz4okhLM9SgMa8LT8St21cU8LcXva9CA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T19:54:40.669936Z","bundle_sha256":"e6fb02f46a1ea91daa0e87088a10a3290fe890c2f74b9e4b4dbb8749f234a81c"}}