{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:V2BIN6RHQ7L5EI2X7LBZR36NEJ","short_pith_number":"pith:V2BIN6RH","canonical_record":{"source":{"id":"1009.1411","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-09-07T21:34:07Z","cross_cats_sorted":[],"title_canon_sha256":"1be593a5f3690591da5ee00e8d21892d4ee4a2d7dceecc7e224720d5f4195462","abstract_canon_sha256":"f92086b88bf25cfaed570f8f030c0a2d75a62cfc8a70fa6a1bb3c619a68cbc9f"},"schema_version":"1.0"},"canonical_sha256":"ae8286fa2787d7d22357fac398efcd2278439dab1ee96a31910436bf67d3ba29","source":{"kind":"arxiv","id":"1009.1411","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.1411","created_at":"2026-05-18T00:59:28Z"},{"alias_kind":"arxiv_version","alias_value":"1009.1411v2","created_at":"2026-05-18T00:59:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.1411","created_at":"2026-05-18T00:59:28Z"},{"alias_kind":"pith_short_12","alias_value":"V2BIN6RHQ7L5","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_16","alias_value":"V2BIN6RHQ7L5EI2X","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_8","alias_value":"V2BIN6RH","created_at":"2026-05-18T12:26:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:V2BIN6RHQ7L5EI2X7LBZR36NEJ","target":"record","payload":{"canonical_record":{"source":{"id":"1009.1411","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-09-07T21:34:07Z","cross_cats_sorted":[],"title_canon_sha256":"1be593a5f3690591da5ee00e8d21892d4ee4a2d7dceecc7e224720d5f4195462","abstract_canon_sha256":"f92086b88bf25cfaed570f8f030c0a2d75a62cfc8a70fa6a1bb3c619a68cbc9f"},"schema_version":"1.0"},"canonical_sha256":"ae8286fa2787d7d22357fac398efcd2278439dab1ee96a31910436bf67d3ba29","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:59:28.473599Z","signature_b64":"taFV2lXw/3xml+hpH1Q2Z4SDXMXt8ElHtLexaondLfl11zZ+KjE/0cleXhzHsocgYPIxG3Erbp69Z8cfGGnRBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ae8286fa2787d7d22357fac398efcd2278439dab1ee96a31910436bf67d3ba29","last_reissued_at":"2026-05-18T00:59:28.472814Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:59:28.472814Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1009.1411","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":"2026-05-18T00:59:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ULLuOmFMN36gxxsqOG3KKAeWj89dZgH45JOJ13AdRaGe1mGc0xxVbjk9YKBA8s8j7mkFEJbj95/AUoRG831xCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T23:40:14.563129Z"},"content_sha256":"c8f92d1ffa9bf17653717861ebec2fbc2bde88a819907a046822f3e2e58a9a94","schema_version":"1.0","event_id":"sha256:c8f92d1ffa9bf17653717861ebec2fbc2bde88a819907a046822f3e2e58a9a94"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:V2BIN6RHQ7L5EI2X7LBZR36NEJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Frontiers of Dark Energy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Eric V. Linder","submitted_at":"2010-09-07T21:34:07Z","abstract_excerpt":"Cosmologists are just beginning to probe the properties of the cosmic vacuum and its role in reversing the attractive pull of gravity to cause an acceleration in the expansion of the cosmos. The cause of this acceleration is given the generic name of dark energy, whether it is due to a true vacuum, a false, temporary vacuum, or a new relation between the vacuum and the force of gravity. Despite the common name, the distinction between these origins is of utmost interest and physicists are actively engaged in finding ways to use cosmological observations to distinguish which is the true, new ph"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.1411","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":"2026-05-18T00:59:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"svKYtvrlhPx26O6d2pjAb2aQMMytcd2txIm1grsp/Y2WlON3QUz30Wss8RmLvhDTmGqWun3va26PFsFh4CP4Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T23:40:14.563484Z"},"content_sha256":"9ce57245b7db0dd928e4b4b2bc975966b3abdf5e5c65502799486194f284f880","schema_version":"1.0","event_id":"sha256:9ce57245b7db0dd928e4b4b2bc975966b3abdf5e5c65502799486194f284f880"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/V2BIN6RHQ7L5EI2X7LBZR36NEJ/bundle.json","state_url":"https://pith.science/pith/V2BIN6RHQ7L5EI2X7LBZR36NEJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/V2BIN6RHQ7L5EI2X7LBZR36NEJ/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":"2026-06-01T23:40:14Z","links":{"resolver":"https://pith.science/pith/V2BIN6RHQ7L5EI2X7LBZR36NEJ","bundle":"https://pith.science/pith/V2BIN6RHQ7L5EI2X7LBZR36NEJ/bundle.json","state":"https://pith.science/pith/V2BIN6RHQ7L5EI2X7LBZR36NEJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/V2BIN6RHQ7L5EI2X7LBZR36NEJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:V2BIN6RHQ7L5EI2X7LBZR36NEJ","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":"f92086b88bf25cfaed570f8f030c0a2d75a62cfc8a70fa6a1bb3c619a68cbc9f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-09-07T21:34:07Z","title_canon_sha256":"1be593a5f3690591da5ee00e8d21892d4ee4a2d7dceecc7e224720d5f4195462"},"schema_version":"1.0","source":{"id":"1009.1411","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.1411","created_at":"2026-05-18T00:59:28Z"},{"alias_kind":"arxiv_version","alias_value":"1009.1411v2","created_at":"2026-05-18T00:59:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.1411","created_at":"2026-05-18T00:59:28Z"},{"alias_kind":"pith_short_12","alias_value":"V2BIN6RHQ7L5","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_16","alias_value":"V2BIN6RHQ7L5EI2X","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_8","alias_value":"V2BIN6RH","created_at":"2026-05-18T12:26:15Z"}],"graph_snapshots":[{"event_id":"sha256:9ce57245b7db0dd928e4b4b2bc975966b3abdf5e5c65502799486194f284f880","target":"graph","created_at":"2026-05-18T00:59:28Z","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":"Cosmologists are just beginning to probe the properties of the cosmic vacuum and its role in reversing the attractive pull of gravity to cause an acceleration in the expansion of the cosmos. The cause of this acceleration is given the generic name of dark energy, whether it is due to a true vacuum, a false, temporary vacuum, or a new relation between the vacuum and the force of gravity. Despite the common name, the distinction between these origins is of utmost interest and physicists are actively engaged in finding ways to use cosmological observations to distinguish which is the true, new ph","authors_text":"Eric V. Linder","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-09-07T21:34:07Z","title":"Frontiers of Dark Energy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.1411","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:c8f92d1ffa9bf17653717861ebec2fbc2bde88a819907a046822f3e2e58a9a94","target":"record","created_at":"2026-05-18T00:59:28Z","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":"f92086b88bf25cfaed570f8f030c0a2d75a62cfc8a70fa6a1bb3c619a68cbc9f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-09-07T21:34:07Z","title_canon_sha256":"1be593a5f3690591da5ee00e8d21892d4ee4a2d7dceecc7e224720d5f4195462"},"schema_version":"1.0","source":{"id":"1009.1411","kind":"arxiv","version":2}},"canonical_sha256":"ae8286fa2787d7d22357fac398efcd2278439dab1ee96a31910436bf67d3ba29","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ae8286fa2787d7d22357fac398efcd2278439dab1ee96a31910436bf67d3ba29","first_computed_at":"2026-05-18T00:59:28.472814Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:59:28.472814Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"taFV2lXw/3xml+hpH1Q2Z4SDXMXt8ElHtLexaondLfl11zZ+KjE/0cleXhzHsocgYPIxG3Erbp69Z8cfGGnRBA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:59:28.473599Z","signed_message":"canonical_sha256_bytes"},"source_id":"1009.1411","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c8f92d1ffa9bf17653717861ebec2fbc2bde88a819907a046822f3e2e58a9a94","sha256:9ce57245b7db0dd928e4b4b2bc975966b3abdf5e5c65502799486194f284f880"],"state_sha256":"faaf246c2e38be2c016ead566813f43b485507ed8a4eb9ca854c0a63876e0de0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MzuXR6BPlgBxqwab4TwQSyscu1MRVx+QwByyOcBRnJjf6yQoJcrIRiPMAOhy6KcrspzTbQV6CL1x4R3dOaJzAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T23:40:14.565416Z","bundle_sha256":"644dc8068c310c0bc4c1475232709b252b1c27660922e9df7ed371a43dac7ac4"}}