{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:LZLZBI2VZU7H5JQXNVTHFALICL","short_pith_number":"pith:LZLZBI2V","canonical_record":{"source":{"id":"2402.09038","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2024-02-14T09:34:45Z","cross_cats_sorted":[],"title_canon_sha256":"de14f85d23c08c55a42ead5441ecb32c3b1fe34d66cee4504cb240fe349925d0","abstract_canon_sha256":"544c0a5b2942a1c2fbd9e808b17459d01ecc5151456916632d1d150c0e814544"},"schema_version":"1.0"},"canonical_sha256":"5e5790a355cd3e7ea6176d6672816812c553c82f78cd2f317379ebeb3c1b8746","source":{"kind":"arxiv","id":"2402.09038","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2402.09038","created_at":"2026-07-05T08:20:27Z"},{"alias_kind":"arxiv_version","alias_value":"2402.09038v2","created_at":"2026-07-05T08:20:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2402.09038","created_at":"2026-07-05T08:20:27Z"},{"alias_kind":"pith_short_12","alias_value":"LZLZBI2VZU7H","created_at":"2026-07-05T08:20:27Z"},{"alias_kind":"pith_short_16","alias_value":"LZLZBI2VZU7H5JQX","created_at":"2026-07-05T08:20:27Z"},{"alias_kind":"pith_short_8","alias_value":"LZLZBI2V","created_at":"2026-07-05T08:20:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:LZLZBI2VZU7H5JQXNVTHFALICL","target":"record","payload":{"canonical_record":{"source":{"id":"2402.09038","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2024-02-14T09:34:45Z","cross_cats_sorted":[],"title_canon_sha256":"de14f85d23c08c55a42ead5441ecb32c3b1fe34d66cee4504cb240fe349925d0","abstract_canon_sha256":"544c0a5b2942a1c2fbd9e808b17459d01ecc5151456916632d1d150c0e814544"},"schema_version":"1.0"},"canonical_sha256":"5e5790a355cd3e7ea6176d6672816812c553c82f78cd2f317379ebeb3c1b8746","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:20:27.726276Z","signature_b64":"pKp8pslCFVSuXx/099f6g+kxXo/P+sMFPXXVaTG1T3RzAfpBu/CCNfnRChpAiGilONKRKdts172uZpks1KNBBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5e5790a355cd3e7ea6176d6672816812c553c82f78cd2f317379ebeb3c1b8746","last_reissued_at":"2026-07-05T08:20:27.725752Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:20:27.725752Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2402.09038","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":"2026-07-05T08:20:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TA2MtdZ8dVJxT/CAmXa1ZjIl04k9Kj76j8ZZ8qJNWnzQEicAXJQkyRDDDIsHNNw2edIhViOKTdcZO0ouuWPNAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T19:03:40.683981Z"},"content_sha256":"40f4cae5b9f6388af8f28a937cc927f23e0c7b034b943f2d438756fbc2b5cdc8","schema_version":"1.0","event_id":"sha256:40f4cae5b9f6388af8f28a937cc927f23e0c7b034b943f2d438756fbc2b5cdc8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:LZLZBI2VZU7H5JQXNVTHFALICL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Tunneling of quantum geometries in spinfoams","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Carlo Rovelli, Francesca Vidotto, Hal M. Haggard, Pietro Dona","submitted_at":"2024-02-14T09:34:45Z","abstract_excerpt":"Quantum gravitational tunneling effects are expected to give rise to a number of interesting observable phenomena, including, in particular, the evolution of black holes at the end of their existence or the emergence of the early universe from a quantum phase. Covariant Loop Quantum Gravity provides a framework to study these phenomena, yet a precise identification of tunneling processes is still not known. Motivated by this question, we consider a related, simpler case, that of Ponzano-Regge amplitudes: we find a surprising and detailed analogy of a class of simple transition amplitudes with "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2402.09038","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/2402.09038/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":"2026-07-05T08:20:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wRBDoJJY/8IJHQU7Z43O6GsI+KP9e6rDfAZDnAi5kk51iQCCG/QKtUbsZVbCcAlLcoKBePhmq6DMhyAvRDuEBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T19:03:40.684535Z"},"content_sha256":"5cfef0984cc1bce1703c3e4cd5a9f6cf144ba11e9d362e679f97913711b2118b","schema_version":"1.0","event_id":"sha256:5cfef0984cc1bce1703c3e4cd5a9f6cf144ba11e9d362e679f97913711b2118b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LZLZBI2VZU7H5JQXNVTHFALICL/bundle.json","state_url":"https://pith.science/pith/LZLZBI2VZU7H5JQXNVTHFALICL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LZLZBI2VZU7H5JQXNVTHFALICL/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":"2026-08-06T19:03:40Z","links":{"resolver":"https://pith.science/pith/LZLZBI2VZU7H5JQXNVTHFALICL","bundle":"https://pith.science/pith/LZLZBI2VZU7H5JQXNVTHFALICL/bundle.json","state":"https://pith.science/pith/LZLZBI2VZU7H5JQXNVTHFALICL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LZLZBI2VZU7H5JQXNVTHFALICL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:LZLZBI2VZU7H5JQXNVTHFALICL","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":"544c0a5b2942a1c2fbd9e808b17459d01ecc5151456916632d1d150c0e814544","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2024-02-14T09:34:45Z","title_canon_sha256":"de14f85d23c08c55a42ead5441ecb32c3b1fe34d66cee4504cb240fe349925d0"},"schema_version":"1.0","source":{"id":"2402.09038","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2402.09038","created_at":"2026-07-05T08:20:27Z"},{"alias_kind":"arxiv_version","alias_value":"2402.09038v2","created_at":"2026-07-05T08:20:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2402.09038","created_at":"2026-07-05T08:20:27Z"},{"alias_kind":"pith_short_12","alias_value":"LZLZBI2VZU7H","created_at":"2026-07-05T08:20:27Z"},{"alias_kind":"pith_short_16","alias_value":"LZLZBI2VZU7H5JQX","created_at":"2026-07-05T08:20:27Z"},{"alias_kind":"pith_short_8","alias_value":"LZLZBI2V","created_at":"2026-07-05T08:20:27Z"}],"graph_snapshots":[{"event_id":"sha256:5cfef0984cc1bce1703c3e4cd5a9f6cf144ba11e9d362e679f97913711b2118b","target":"graph","created_at":"2026-07-05T08:20:27Z","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/2402.09038/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Quantum gravitational tunneling effects are expected to give rise to a number of interesting observable phenomena, including, in particular, the evolution of black holes at the end of their existence or the emergence of the early universe from a quantum phase. Covariant Loop Quantum Gravity provides a framework to study these phenomena, yet a precise identification of tunneling processes is still not known. Motivated by this question, we consider a related, simpler case, that of Ponzano-Regge amplitudes: we find a surprising and detailed analogy of a class of simple transition amplitudes with ","authors_text":"Carlo Rovelli, Francesca Vidotto, Hal M. Haggard, Pietro Dona","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2024-02-14T09:34:45Z","title":"Tunneling of quantum geometries in spinfoams"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2402.09038","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":"sha256:40f4cae5b9f6388af8f28a937cc927f23e0c7b034b943f2d438756fbc2b5cdc8","target":"record","created_at":"2026-07-05T08:20:27Z","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":"544c0a5b2942a1c2fbd9e808b17459d01ecc5151456916632d1d150c0e814544","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2024-02-14T09:34:45Z","title_canon_sha256":"de14f85d23c08c55a42ead5441ecb32c3b1fe34d66cee4504cb240fe349925d0"},"schema_version":"1.0","source":{"id":"2402.09038","kind":"arxiv","version":2}},"canonical_sha256":"5e5790a355cd3e7ea6176d6672816812c553c82f78cd2f317379ebeb3c1b8746","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5e5790a355cd3e7ea6176d6672816812c553c82f78cd2f317379ebeb3c1b8746","first_computed_at":"2026-07-05T08:20:27.725752Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:20:27.725752Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pKp8pslCFVSuXx/099f6g+kxXo/P+sMFPXXVaTG1T3RzAfpBu/CCNfnRChpAiGilONKRKdts172uZpks1KNBBg==","signature_status":"signed_v1","signed_at":"2026-07-05T08:20:27.726276Z","signed_message":"canonical_sha256_bytes"},"source_id":"2402.09038","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:40f4cae5b9f6388af8f28a937cc927f23e0c7b034b943f2d438756fbc2b5cdc8","sha256:5cfef0984cc1bce1703c3e4cd5a9f6cf144ba11e9d362e679f97913711b2118b"],"state_sha256":"d6aff6a09bf809cb6748fc01ef982939dc37dc1beba68d2e70d22fb70a86e672"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"a9a8qS7GWJW6HXylIYhn2Yo7S2fpG/QnDdWuMpcJq7oZeAa88vFE9JQ8iPiS8xb4Nm65IWrfk4/Ae0EBgXjACw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T19:03:40.691267Z","bundle_sha256":"c3f65568a26082f30f4432eaedf036aac58855723a4d9322eebe65bb983ca7ee"}}