{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:UNWO6LEB6VBB6KFGUOAN6OE2MB","short_pith_number":"pith:UNWO6LEB","canonical_record":{"source":{"id":"1602.08271","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2016-02-26T10:40:22Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"a1e51bd8dcef0c4b773088a2321dd7803affd73a5e60726b979ba87fdd1a7620","abstract_canon_sha256":"99be22b3d7b2555f988d136ebd912ae830fba5b9376cea33a66d9a21d3180cbc"},"schema_version":"1.0"},"canonical_sha256":"a36cef2c81f5421f28a6a380df389a607c125ecc529047a476c05f863600ddb3","source":{"kind":"arxiv","id":"1602.08271","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1602.08271","created_at":"2026-05-18T00:52:17Z"},{"alias_kind":"arxiv_version","alias_value":"1602.08271v3","created_at":"2026-05-18T00:52:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.08271","created_at":"2026-05-18T00:52:17Z"},{"alias_kind":"pith_short_12","alias_value":"UNWO6LEB6VBB","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_16","alias_value":"UNWO6LEB6VBB6KFG","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_8","alias_value":"UNWO6LEB","created_at":"2026-05-18T12:30:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:UNWO6LEB6VBB6KFGUOAN6OE2MB","target":"record","payload":{"canonical_record":{"source":{"id":"1602.08271","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2016-02-26T10:40:22Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"a1e51bd8dcef0c4b773088a2321dd7803affd73a5e60726b979ba87fdd1a7620","abstract_canon_sha256":"99be22b3d7b2555f988d136ebd912ae830fba5b9376cea33a66d9a21d3180cbc"},"schema_version":"1.0"},"canonical_sha256":"a36cef2c81f5421f28a6a380df389a607c125ecc529047a476c05f863600ddb3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:52:17.515975Z","signature_b64":"IJn19VbEgSb/4Kaxa0dCaY+4YKOlmUO9nOaiJqAfg/2qg0jMWoZ1az7JTdLYnG3Q7pA7N5u+XoukmhexN4NpCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a36cef2c81f5421f28a6a380df389a607c125ecc529047a476c05f863600ddb3","last_reissued_at":"2026-05-18T00:52:17.515220Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:52:17.515220Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1602.08271","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:52:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"I+nFcMqJp24YgXtm5yBXh/gwHEHy8DBVW7uREFqfl6EsGtXm62Baf0cDggsvpZenrUzTl65BE4gIG2TnUPFQBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T10:07:21.036358Z"},"content_sha256":"4225b9e8b4d6474f97487c19d3959ff05609038517a9379e57cff96b4b17b4cf","schema_version":"1.0","event_id":"sha256:4225b9e8b4d6474f97487c19d3959ff05609038517a9379e57cff96b4b17b4cf"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:UNWO6LEB6VBB6KFGUOAN6OE2MB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Bouncing cosmologies from quantum gravity condensates","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-th"],"primary_cat":"gr-qc","authors_text":"Daniele Oriti, Edward Wilson-Ewing, Lorenzo Sindoni","submitted_at":"2016-02-26T10:40:22Z","abstract_excerpt":"We show how the large-scale cosmological dynamics can be obtained from the hydrodynamics of isotropic group field theory condensate states in the Gross-Pitaevskii approximation. The correct Friedmann equations are recovered in the semi-classical limit for some choices of the parameters in the action for the group field theory, and quantum gravity corrections arise in the high-curvature regime causing a bounce which generically resolves the big-bang and big-crunch singularities."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.08271","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"2026-05-18T00:52:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qyWo1hyBxJ3V5dadugj7LuQSJfV0LsksjlQS8CWDy3RBmyK0nLtQI+mRip4kncd3dv+X1elgITXH/Uy6+3UnBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T10:07:21.037033Z"},"content_sha256":"c97efd52b5aa605f74f6db4f8dfe5f92fbe1262b69f566adfcc5fe3af5dc04fe","schema_version":"1.0","event_id":"sha256:c97efd52b5aa605f74f6db4f8dfe5f92fbe1262b69f566adfcc5fe3af5dc04fe"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UNWO6LEB6VBB6KFGUOAN6OE2MB/bundle.json","state_url":"https://pith.science/pith/UNWO6LEB6VBB6KFGUOAN6OE2MB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UNWO6LEB6VBB6KFGUOAN6OE2MB/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":"2026-05-26T10:07:21Z","links":{"resolver":"https://pith.science/pith/UNWO6LEB6VBB6KFGUOAN6OE2MB","bundle":"https://pith.science/pith/UNWO6LEB6VBB6KFGUOAN6OE2MB/bundle.json","state":"https://pith.science/pith/UNWO6LEB6VBB6KFGUOAN6OE2MB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UNWO6LEB6VBB6KFGUOAN6OE2MB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:UNWO6LEB6VBB6KFGUOAN6OE2MB","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":"99be22b3d7b2555f988d136ebd912ae830fba5b9376cea33a66d9a21d3180cbc","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2016-02-26T10:40:22Z","title_canon_sha256":"a1e51bd8dcef0c4b773088a2321dd7803affd73a5e60726b979ba87fdd1a7620"},"schema_version":"1.0","source":{"id":"1602.08271","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1602.08271","created_at":"2026-05-18T00:52:17Z"},{"alias_kind":"arxiv_version","alias_value":"1602.08271v3","created_at":"2026-05-18T00:52:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1602.08271","created_at":"2026-05-18T00:52:17Z"},{"alias_kind":"pith_short_12","alias_value":"UNWO6LEB6VBB","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_16","alias_value":"UNWO6LEB6VBB6KFG","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_8","alias_value":"UNWO6LEB","created_at":"2026-05-18T12:30:46Z"}],"graph_snapshots":[{"event_id":"sha256:c97efd52b5aa605f74f6db4f8dfe5f92fbe1262b69f566adfcc5fe3af5dc04fe","target":"graph","created_at":"2026-05-18T00:52:17Z","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"},"paper":{"abstract_excerpt":"We show how the large-scale cosmological dynamics can be obtained from the hydrodynamics of isotropic group field theory condensate states in the Gross-Pitaevskii approximation. The correct Friedmann equations are recovered in the semi-classical limit for some choices of the parameters in the action for the group field theory, and quantum gravity corrections arise in the high-curvature regime causing a bounce which generically resolves the big-bang and big-crunch singularities.","authors_text":"Daniele Oriti, Edward Wilson-Ewing, Lorenzo Sindoni","cross_cats":["hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2016-02-26T10:40:22Z","title":"Bouncing cosmologies from quantum gravity condensates"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1602.08271","kind":"arxiv","version":3},"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":"sha256:4225b9e8b4d6474f97487c19d3959ff05609038517a9379e57cff96b4b17b4cf","target":"record","created_at":"2026-05-18T00:52:17Z","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":"99be22b3d7b2555f988d136ebd912ae830fba5b9376cea33a66d9a21d3180cbc","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2016-02-26T10:40:22Z","title_canon_sha256":"a1e51bd8dcef0c4b773088a2321dd7803affd73a5e60726b979ba87fdd1a7620"},"schema_version":"1.0","source":{"id":"1602.08271","kind":"arxiv","version":3}},"canonical_sha256":"a36cef2c81f5421f28a6a380df389a607c125ecc529047a476c05f863600ddb3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a36cef2c81f5421f28a6a380df389a607c125ecc529047a476c05f863600ddb3","first_computed_at":"2026-05-18T00:52:17.515220Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:52:17.515220Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"IJn19VbEgSb/4Kaxa0dCaY+4YKOlmUO9nOaiJqAfg/2qg0jMWoZ1az7JTdLYnG3Q7pA7N5u+XoukmhexN4NpCg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:52:17.515975Z","signed_message":"canonical_sha256_bytes"},"source_id":"1602.08271","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4225b9e8b4d6474f97487c19d3959ff05609038517a9379e57cff96b4b17b4cf","sha256:c97efd52b5aa605f74f6db4f8dfe5f92fbe1262b69f566adfcc5fe3af5dc04fe"],"state_sha256":"298ece0c2aecb73795f001a636b4ab3fecde5bd4e05d1668c014606c435e3371"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hjnVPeKJlZMEnO6bXRXW8yw26DaIXnW5Tle02r0Tbxz4MUndpxwPcfr9Afak1yF2VDip/LaR2sgq17qpoLOmDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T10:07:21.040469Z","bundle_sha256":"917ed3ea78dcb82e24bce9693861e79ccd50cfd972e501fac13c6e0cd770abce"}}