{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:BBXPGYSW5ID34ZXLRBBDCQPULG","short_pith_number":"pith:BBXPGYSW","canonical_record":{"source":{"id":"1408.5589","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2014-08-24T10:32:43Z","cross_cats_sorted":[],"title_canon_sha256":"ab3098c6da84104a6c7c801a24b075e35d5228772e64b3418a331617469137b8","abstract_canon_sha256":"b0aa68e2bfee4760403a253212c1306cc1b4627c1e6768a88feb63be8af7d17d"},"schema_version":"1.0"},"canonical_sha256":"086ef36256ea07be66eb88423141f459a9437c15ae6bf700a42d5b8539db45e7","source":{"kind":"arxiv","id":"1408.5589","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1408.5589","created_at":"2026-05-18T01:36:01Z"},{"alias_kind":"arxiv_version","alias_value":"1408.5589v3","created_at":"2026-05-18T01:36:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1408.5589","created_at":"2026-05-18T01:36:01Z"},{"alias_kind":"pith_short_12","alias_value":"BBXPGYSW5ID3","created_at":"2026-05-18T12:28:22Z"},{"alias_kind":"pith_short_16","alias_value":"BBXPGYSW5ID34ZXL","created_at":"2026-05-18T12:28:22Z"},{"alias_kind":"pith_short_8","alias_value":"BBXPGYSW","created_at":"2026-05-18T12:28:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:BBXPGYSW5ID34ZXLRBBDCQPULG","target":"record","payload":{"canonical_record":{"source":{"id":"1408.5589","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2014-08-24T10:32:43Z","cross_cats_sorted":[],"title_canon_sha256":"ab3098c6da84104a6c7c801a24b075e35d5228772e64b3418a331617469137b8","abstract_canon_sha256":"b0aa68e2bfee4760403a253212c1306cc1b4627c1e6768a88feb63be8af7d17d"},"schema_version":"1.0"},"canonical_sha256":"086ef36256ea07be66eb88423141f459a9437c15ae6bf700a42d5b8539db45e7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:36:01.917726Z","signature_b64":"iDGznqJZcIol4y07cfXUJi21pF93UhYD9WkQYGAFxJOYllRbxCRwRLkAhPQPxoR4HUl2tfYl4krFU14AA/MDAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"086ef36256ea07be66eb88423141f459a9437c15ae6bf700a42d5b8539db45e7","last_reissued_at":"2026-05-18T01:36:01.917150Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:36:01.917150Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1408.5589","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":"2026-05-18T01:36:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+3JGnuxztnOiWieLXu0kcfsNmrdUGcivu1sip5Ck/XFH+DMHVi54V9K+FE0xAoswQvPNwkUNDqxjcCbDHY5EDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T19:07:57.308692Z"},"content_sha256":"bea6b2bb1ba24583163424797ae6721315f0fde8658acd8edb8eb9b7f34790ee","schema_version":"1.0","event_id":"sha256:bea6b2bb1ba24583163424797ae6721315f0fde8658acd8edb8eb9b7f34790ee"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:BBXPGYSW5ID34ZXLRBBDCQPULG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Geometry and Dynamics of Emergent Spacetime from Entanglement Spectrum","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-th","authors_text":"Hiroaki Matsueda","submitted_at":"2014-08-24T10:32:43Z","abstract_excerpt":"We examine geometry and dynamics of classical spacetime derived from entanglement spectrum. The spacetime is a kind of canonical parameter space defined by the Fisher information metric. As a concrete example, we focus on the spectrum for free fermions in spatially one dimension. The spectrum has exponential family form like thermal probability distribution owing to mixed-state feature emerging from truncation of environmental degrees of freedom. In this case, the Fisher metric is given by the second derivative of the Hessian potential that can be identified with the entanglement entropy. We e"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1408.5589","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":"2026-05-18T01:36:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MWd8n1WGqg5S8KSkTvYfEpov5W+3bf+9CMYh4Ke3pFd0c2TwtX9IbuNIHTQRuIB/XFJ3thVebDbpVsaaDP/DDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T19:07:57.309331Z"},"content_sha256":"7bae3465836d7f9eb6756aa2a55a387d2e092d1fc89089f4fd03ae24e7ad176e","schema_version":"1.0","event_id":"sha256:7bae3465836d7f9eb6756aa2a55a387d2e092d1fc89089f4fd03ae24e7ad176e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BBXPGYSW5ID34ZXLRBBDCQPULG/bundle.json","state_url":"https://pith.science/pith/BBXPGYSW5ID34ZXLRBBDCQPULG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BBXPGYSW5ID34ZXLRBBDCQPULG/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":"2026-05-29T19:07:57Z","links":{"resolver":"https://pith.science/pith/BBXPGYSW5ID34ZXLRBBDCQPULG","bundle":"https://pith.science/pith/BBXPGYSW5ID34ZXLRBBDCQPULG/bundle.json","state":"https://pith.science/pith/BBXPGYSW5ID34ZXLRBBDCQPULG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BBXPGYSW5ID34ZXLRBBDCQPULG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:BBXPGYSW5ID34ZXLRBBDCQPULG","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":"b0aa68e2bfee4760403a253212c1306cc1b4627c1e6768a88feb63be8af7d17d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2014-08-24T10:32:43Z","title_canon_sha256":"ab3098c6da84104a6c7c801a24b075e35d5228772e64b3418a331617469137b8"},"schema_version":"1.0","source":{"id":"1408.5589","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1408.5589","created_at":"2026-05-18T01:36:01Z"},{"alias_kind":"arxiv_version","alias_value":"1408.5589v3","created_at":"2026-05-18T01:36:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1408.5589","created_at":"2026-05-18T01:36:01Z"},{"alias_kind":"pith_short_12","alias_value":"BBXPGYSW5ID3","created_at":"2026-05-18T12:28:22Z"},{"alias_kind":"pith_short_16","alias_value":"BBXPGYSW5ID34ZXL","created_at":"2026-05-18T12:28:22Z"},{"alias_kind":"pith_short_8","alias_value":"BBXPGYSW","created_at":"2026-05-18T12:28:22Z"}],"graph_snapshots":[{"event_id":"sha256:7bae3465836d7f9eb6756aa2a55a387d2e092d1fc89089f4fd03ae24e7ad176e","target":"graph","created_at":"2026-05-18T01:36:01Z","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 examine geometry and dynamics of classical spacetime derived from entanglement spectrum. The spacetime is a kind of canonical parameter space defined by the Fisher information metric. As a concrete example, we focus on the spectrum for free fermions in spatially one dimension. The spectrum has exponential family form like thermal probability distribution owing to mixed-state feature emerging from truncation of environmental degrees of freedom. In this case, the Fisher metric is given by the second derivative of the Hessian potential that can be identified with the entanglement entropy. We e","authors_text":"Hiroaki Matsueda","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2014-08-24T10:32:43Z","title":"Geometry and Dynamics of Emergent Spacetime from Entanglement Spectrum"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1408.5589","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:bea6b2bb1ba24583163424797ae6721315f0fde8658acd8edb8eb9b7f34790ee","target":"record","created_at":"2026-05-18T01:36:01Z","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":"b0aa68e2bfee4760403a253212c1306cc1b4627c1e6768a88feb63be8af7d17d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2014-08-24T10:32:43Z","title_canon_sha256":"ab3098c6da84104a6c7c801a24b075e35d5228772e64b3418a331617469137b8"},"schema_version":"1.0","source":{"id":"1408.5589","kind":"arxiv","version":3}},"canonical_sha256":"086ef36256ea07be66eb88423141f459a9437c15ae6bf700a42d5b8539db45e7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"086ef36256ea07be66eb88423141f459a9437c15ae6bf700a42d5b8539db45e7","first_computed_at":"2026-05-18T01:36:01.917150Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:36:01.917150Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"iDGznqJZcIol4y07cfXUJi21pF93UhYD9WkQYGAFxJOYllRbxCRwRLkAhPQPxoR4HUl2tfYl4krFU14AA/MDAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:36:01.917726Z","signed_message":"canonical_sha256_bytes"},"source_id":"1408.5589","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bea6b2bb1ba24583163424797ae6721315f0fde8658acd8edb8eb9b7f34790ee","sha256:7bae3465836d7f9eb6756aa2a55a387d2e092d1fc89089f4fd03ae24e7ad176e"],"state_sha256":"f095acc554fe0af7ac50f4644c165fdbde029abb6fe3391189cfc5cd71fa6e41"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PAUJ0ceqQyy++n0SJZayYVREsi/B1wuBV89f1odWLMFP5E0cC4sSWndFSNbRfYzjNzpGCIqAAtHK4oStAf8WAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T19:07:57.311932Z","bundle_sha256":"cc23a775f4294c70adbda41e3444ff109e25b4f5775d58b90cf9610e272e5a2a"}}