{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:ANDV76TXCMAEZYARXGAQ7TXQK4","short_pith_number":"pith:ANDV76TX","canonical_record":{"source":{"id":"1804.01228","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-04-04T03:50:26Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"4b422deebb724a187ef838caca5bd1691c5dc94884b6f7576a88d52e00aa5def","abstract_canon_sha256":"1b0cfee6e32d406982c454966759f29270e8ad7570504bc4735f3e1445c06fe9"},"schema_version":"1.0"},"canonical_sha256":"03475ffa7713004ce011b9810fcef0572d9bd5e6f51edb65d227e52838da043f","source":{"kind":"arxiv","id":"1804.01228","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.01228","created_at":"2026-05-18T00:11:34Z"},{"alias_kind":"arxiv_version","alias_value":"1804.01228v2","created_at":"2026-05-18T00:11:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.01228","created_at":"2026-05-18T00:11:34Z"},{"alias_kind":"pith_short_12","alias_value":"ANDV76TXCMAE","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_16","alias_value":"ANDV76TXCMAEZYAR","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_8","alias_value":"ANDV76TX","created_at":"2026-05-18T12:32:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:ANDV76TXCMAEZYARXGAQ7TXQK4","target":"record","payload":{"canonical_record":{"source":{"id":"1804.01228","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-04-04T03:50:26Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"4b422deebb724a187ef838caca5bd1691c5dc94884b6f7576a88d52e00aa5def","abstract_canon_sha256":"1b0cfee6e32d406982c454966759f29270e8ad7570504bc4735f3e1445c06fe9"},"schema_version":"1.0"},"canonical_sha256":"03475ffa7713004ce011b9810fcef0572d9bd5e6f51edb65d227e52838da043f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:11:34.867327Z","signature_b64":"P5V0/lf6s63eRq/DknIGIxDH/3Y4gh0HLH39xKMXRRV//cJEvlcM2uNYcehSdi/SnVszRd0EIHFOrLAquLnkCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"03475ffa7713004ce011b9810fcef0572d9bd5e6f51edb65d227e52838da043f","last_reissued_at":"2026-05-18T00:11:34.866624Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:11:34.866624Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1804.01228","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":"2026-05-18T00:11:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6XEOKlb6/wU+pLdkzKc6FFWuZAhjM215sRwjERxj/aIMkqrLZ9/o6TypMjfbABER+d1e2vvs6G6S2WPMn1oUDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T03:44:26.737192Z"},"content_sha256":"06b995e019d6983e014d9768dcc29a56e4c2e887b7b43970550174f9db4802b5","schema_version":"1.0","event_id":"sha256:06b995e019d6983e014d9768dcc29a56e4c2e887b7b43970550174f9db4802b5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:ANDV76TXCMAEZYARXGAQ7TXQK4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantum fields during black hole formation: How good an approximation is the Unruh state?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-th"],"primary_cat":"gr-qc","authors_text":"Benito A. Ju\\'arez-Aubry, Jorma Louko","submitted_at":"2018-04-04T03:50:26Z","abstract_excerpt":"We study the quantum effects of a test Klein-Gordon field in a Vaidya spacetime consisting of a collapsing null shell that forms a Schwazschild black hole, by explicitly obtaining, in a $(1+1)$-dimensional model, the Wightman function, the renormalised stress-energy tensor, and by analysing particle detector rates along stationary orbits in the exterior black hole region, and make a comparison with the folklore that the Unruh state is the state that emerges from black hole formation. In the causal future of the shell, we find a negative ingoing flux at the horizon that agrees precisely with th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.01228","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":""},"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":"2026-05-18T00:11:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fw7kknxlibv9eF81EmUj+osekfZD0+pYh80UbbKN2OZw1gxUwCfNqHr6iQBn16DYLT1WxLTyyufHKeOT7eiIAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T03:44:26.737849Z"},"content_sha256":"540df8e703c6d4e437ffe9e96efec30e7b06a23b9ee73ccb14542762a6af8407","schema_version":"1.0","event_id":"sha256:540df8e703c6d4e437ffe9e96efec30e7b06a23b9ee73ccb14542762a6af8407"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ANDV76TXCMAEZYARXGAQ7TXQK4/bundle.json","state_url":"https://pith.science/pith/ANDV76TXCMAEZYARXGAQ7TXQK4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ANDV76TXCMAEZYARXGAQ7TXQK4/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":"2026-08-20T03:44:26Z","links":{"resolver":"https://pith.science/pith/ANDV76TXCMAEZYARXGAQ7TXQK4","bundle":"https://pith.science/pith/ANDV76TXCMAEZYARXGAQ7TXQK4/bundle.json","state":"https://pith.science/pith/ANDV76TXCMAEZYARXGAQ7TXQK4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ANDV76TXCMAEZYARXGAQ7TXQK4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:ANDV76TXCMAEZYARXGAQ7TXQK4","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":"1b0cfee6e32d406982c454966759f29270e8ad7570504bc4735f3e1445c06fe9","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-04-04T03:50:26Z","title_canon_sha256":"4b422deebb724a187ef838caca5bd1691c5dc94884b6f7576a88d52e00aa5def"},"schema_version":"1.0","source":{"id":"1804.01228","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.01228","created_at":"2026-05-18T00:11:34Z"},{"alias_kind":"arxiv_version","alias_value":"1804.01228v2","created_at":"2026-05-18T00:11:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.01228","created_at":"2026-05-18T00:11:34Z"},{"alias_kind":"pith_short_12","alias_value":"ANDV76TXCMAE","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_16","alias_value":"ANDV76TXCMAEZYAR","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_8","alias_value":"ANDV76TX","created_at":"2026-05-18T12:32:13Z"}],"graph_snapshots":[{"event_id":"sha256:540df8e703c6d4e437ffe9e96efec30e7b06a23b9ee73ccb14542762a6af8407","target":"graph","created_at":"2026-05-18T00:11:34Z","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 study the quantum effects of a test Klein-Gordon field in a Vaidya spacetime consisting of a collapsing null shell that forms a Schwazschild black hole, by explicitly obtaining, in a $(1+1)$-dimensional model, the Wightman function, the renormalised stress-energy tensor, and by analysing particle detector rates along stationary orbits in the exterior black hole region, and make a comparison with the folklore that the Unruh state is the state that emerges from black hole formation. In the causal future of the shell, we find a negative ingoing flux at the horizon that agrees precisely with th","authors_text":"Benito A. Ju\\'arez-Aubry, Jorma Louko","cross_cats":["hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-04-04T03:50:26Z","title":"Quantum fields during black hole formation: How good an approximation is the Unruh state?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.01228","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":"sha256:06b995e019d6983e014d9768dcc29a56e4c2e887b7b43970550174f9db4802b5","target":"record","created_at":"2026-05-18T00:11:34Z","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":"1b0cfee6e32d406982c454966759f29270e8ad7570504bc4735f3e1445c06fe9","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2018-04-04T03:50:26Z","title_canon_sha256":"4b422deebb724a187ef838caca5bd1691c5dc94884b6f7576a88d52e00aa5def"},"schema_version":"1.0","source":{"id":"1804.01228","kind":"arxiv","version":2}},"canonical_sha256":"03475ffa7713004ce011b9810fcef0572d9bd5e6f51edb65d227e52838da043f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"03475ffa7713004ce011b9810fcef0572d9bd5e6f51edb65d227e52838da043f","first_computed_at":"2026-05-18T00:11:34.866624Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:11:34.866624Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"P5V0/lf6s63eRq/DknIGIxDH/3Y4gh0HLH39xKMXRRV//cJEvlcM2uNYcehSdi/SnVszRd0EIHFOrLAquLnkCw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:11:34.867327Z","signed_message":"canonical_sha256_bytes"},"source_id":"1804.01228","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:06b995e019d6983e014d9768dcc29a56e4c2e887b7b43970550174f9db4802b5","sha256:540df8e703c6d4e437ffe9e96efec30e7b06a23b9ee73ccb14542762a6af8407"],"state_sha256":"c40ad03a5d002255da0adaa6912edc713b684c202b291ef34b8b4106ccbbab12"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8ZcPZvOZM8458yQoIfVRkTij3ONmR1UYVMkv7rcLZ1N0ef3VqazBm4dVZS73qmYMRmXOEC+HFHGFH8PzrlOZCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-20T03:44:26.744242Z","bundle_sha256":"764f40e484b8cd66bd24d73085679afa087342a34eaa2a246a829f0a332797fc"}}