{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:FCE5IA2G5F23VPXLYJE472JJSZ","short_pith_number":"pith:FCE5IA2G","canonical_record":{"source":{"id":"2107.05797","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-07-13T00:56:22Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"151afb9b1bcd34823854de432c1bf186ed585321bc0c20800679f8c59a98b2e9","abstract_canon_sha256":"93c20ceae1a8d34dcde10f2b9f879d36bf914237aa6fac080f708a0618ae51bf"},"schema_version":"1.0"},"canonical_sha256":"2889d40346e975babeebc249cfe929965cdd8c1d01791e0dbc8043d24786431b","source":{"kind":"arxiv","id":"2107.05797","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2107.05797","created_at":"2026-07-05T03:40:39Z"},{"alias_kind":"arxiv_version","alias_value":"2107.05797v1","created_at":"2026-07-05T03:40:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2107.05797","created_at":"2026-07-05T03:40:39Z"},{"alias_kind":"pith_short_12","alias_value":"FCE5IA2G5F23","created_at":"2026-07-05T03:40:39Z"},{"alias_kind":"pith_short_16","alias_value":"FCE5IA2G5F23VPXL","created_at":"2026-07-05T03:40:39Z"},{"alias_kind":"pith_short_8","alias_value":"FCE5IA2G","created_at":"2026-07-05T03:40:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:FCE5IA2G5F23VPXLYJE472JJSZ","target":"record","payload":{"canonical_record":{"source":{"id":"2107.05797","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-07-13T00:56:22Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"151afb9b1bcd34823854de432c1bf186ed585321bc0c20800679f8c59a98b2e9","abstract_canon_sha256":"93c20ceae1a8d34dcde10f2b9f879d36bf914237aa6fac080f708a0618ae51bf"},"schema_version":"1.0"},"canonical_sha256":"2889d40346e975babeebc249cfe929965cdd8c1d01791e0dbc8043d24786431b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:40:39.866291Z","signature_b64":"BihDVevSkcVGgZxOsdRnGPLY0M69/kX2NgQj44zalEC2tas7p6tWqqaF1v8I+78J5lixwl73OWK+BFyUFZERBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2889d40346e975babeebc249cfe929965cdd8c1d01791e0dbc8043d24786431b","last_reissued_at":"2026-07-05T03:40:39.865771Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:40:39.865771Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2107.05797","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":"2026-07-05T03:40:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AExNO5qFQb1qNNaQ4ZTpXGKyVK6ebv33DN0NAdBoaicS0SgiSVpJZcbKeUZnAKTb6w7xJthSMnQEWoOk0NGqAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T04:25:44.893689Z"},"content_sha256":"b900dcf64ece2e10b0598f1d3d41df65e4e25ef58171d89e9f6cc270df4047f7","schema_version":"1.0","event_id":"sha256:b900dcf64ece2e10b0598f1d3d41df65e4e25ef58171d89e9f6cc270df4047f7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:FCE5IA2G5F23VPXLYJE472JJSZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Non-singular quantum gravitational dynamics of an LTB dust shell model: the role of quantization prescriptions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"gr-qc","authors_text":"Bao-Fei Li, Kristina Giesel, Parampreet Singh","submitted_at":"2021-07-13T00:56:22Z","abstract_excerpt":"We study some consequences of the loop quantization of the outermost dust shell in the Lema\\^itre-Tolman-Bondi spacetime with a homogeneous dust density using different quantization strategies motivated by loop quantum gravity. Prior work has dealt with loop quantizing this model by employing holonomies and the triads, following the procedure in standard loop quantum cosmology. In this work we compare this quantization with the one in which holonomies and gauge-covariant fluxes are used. While both of the quantization schemes resolve the central singularity, they lead to different mass gaps at"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2107.05797","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2107.05797/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":"2026-07-05T03:40:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EVgfkmQ1aAe5OqqgkllWvuwpivsEQLz1othHMU71NfQVKyYZRDnSKVEmPCtiE16MMpfjJQ80b+RJgp9Bh1O5Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T04:25:44.894218Z"},"content_sha256":"ad091a15630aaf1a0482f9c99842763a99aed679e6225a647ab95b1f4535aab6","schema_version":"1.0","event_id":"sha256:ad091a15630aaf1a0482f9c99842763a99aed679e6225a647ab95b1f4535aab6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FCE5IA2G5F23VPXLYJE472JJSZ/bundle.json","state_url":"https://pith.science/pith/FCE5IA2G5F23VPXLYJE472JJSZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FCE5IA2G5F23VPXLYJE472JJSZ/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":"2026-08-09T04:25:44Z","links":{"resolver":"https://pith.science/pith/FCE5IA2G5F23VPXLYJE472JJSZ","bundle":"https://pith.science/pith/FCE5IA2G5F23VPXLYJE472JJSZ/bundle.json","state":"https://pith.science/pith/FCE5IA2G5F23VPXLYJE472JJSZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FCE5IA2G5F23VPXLYJE472JJSZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:FCE5IA2G5F23VPXLYJE472JJSZ","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":"93c20ceae1a8d34dcde10f2b9f879d36bf914237aa6fac080f708a0618ae51bf","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-07-13T00:56:22Z","title_canon_sha256":"151afb9b1bcd34823854de432c1bf186ed585321bc0c20800679f8c59a98b2e9"},"schema_version":"1.0","source":{"id":"2107.05797","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2107.05797","created_at":"2026-07-05T03:40:39Z"},{"alias_kind":"arxiv_version","alias_value":"2107.05797v1","created_at":"2026-07-05T03:40:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2107.05797","created_at":"2026-07-05T03:40:39Z"},{"alias_kind":"pith_short_12","alias_value":"FCE5IA2G5F23","created_at":"2026-07-05T03:40:39Z"},{"alias_kind":"pith_short_16","alias_value":"FCE5IA2G5F23VPXL","created_at":"2026-07-05T03:40:39Z"},{"alias_kind":"pith_short_8","alias_value":"FCE5IA2G","created_at":"2026-07-05T03:40:39Z"}],"graph_snapshots":[{"event_id":"sha256:ad091a15630aaf1a0482f9c99842763a99aed679e6225a647ab95b1f4535aab6","target":"graph","created_at":"2026-07-05T03:40:39Z","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/2107.05797/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study some consequences of the loop quantization of the outermost dust shell in the Lema\\^itre-Tolman-Bondi spacetime with a homogeneous dust density using different quantization strategies motivated by loop quantum gravity. Prior work has dealt with loop quantizing this model by employing holonomies and the triads, following the procedure in standard loop quantum cosmology. In this work we compare this quantization with the one in which holonomies and gauge-covariant fluxes are used. While both of the quantization schemes resolve the central singularity, they lead to different mass gaps at","authors_text":"Bao-Fei Li, Kristina Giesel, Parampreet Singh","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-07-13T00:56:22Z","title":"Non-singular quantum gravitational dynamics of an LTB dust shell model: the role of quantization prescriptions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2107.05797","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:b900dcf64ece2e10b0598f1d3d41df65e4e25ef58171d89e9f6cc270df4047f7","target":"record","created_at":"2026-07-05T03:40:39Z","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":"93c20ceae1a8d34dcde10f2b9f879d36bf914237aa6fac080f708a0618ae51bf","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-07-13T00:56:22Z","title_canon_sha256":"151afb9b1bcd34823854de432c1bf186ed585321bc0c20800679f8c59a98b2e9"},"schema_version":"1.0","source":{"id":"2107.05797","kind":"arxiv","version":1}},"canonical_sha256":"2889d40346e975babeebc249cfe929965cdd8c1d01791e0dbc8043d24786431b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2889d40346e975babeebc249cfe929965cdd8c1d01791e0dbc8043d24786431b","first_computed_at":"2026-07-05T03:40:39.865771Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:40:39.865771Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BihDVevSkcVGgZxOsdRnGPLY0M69/kX2NgQj44zalEC2tas7p6tWqqaF1v8I+78J5lixwl73OWK+BFyUFZERBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T03:40:39.866291Z","signed_message":"canonical_sha256_bytes"},"source_id":"2107.05797","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b900dcf64ece2e10b0598f1d3d41df65e4e25ef58171d89e9f6cc270df4047f7","sha256:ad091a15630aaf1a0482f9c99842763a99aed679e6225a647ab95b1f4535aab6"],"state_sha256":"b5448cf7890b80751d318b97e3639bea5717e07f4173731e174351418fca88a9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rPFDvtcmgEkI59KXJdFd792+G7/VLlmBL8jO1VOcoY8f83nntvkNKkgToLforbH7zFlNLoq1W5NAw3mLthsIDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-09T04:25:44.897683Z","bundle_sha256":"5da7856b417e151dc7207cc7777c8010a2b4602379d5b7455f6ea25df5ba3f53"}}