{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:5RDW72UPYSZQIF3ST5Y2CJ2GOL","short_pith_number":"pith:5RDW72UP","canonical_record":{"source":{"id":"1404.0238","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-04-01T13:52:55Z","cross_cats_sorted":["hep-ex","hep-ph"],"title_canon_sha256":"d72de698462aee71baa2df22f576650695321b24676d64b4849b0ffe37300a9b","abstract_canon_sha256":"3e9bf1ca3e6a4eff8271a598d79db98dbe58d114b155cd0d267c57d32334f7ac"},"schema_version":"1.0"},"canonical_sha256":"ec476fea8fc4b30417729f71a1274672c855b742211fd56591c8ad52f6918135","source":{"kind":"arxiv","id":"1404.0238","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1404.0238","created_at":"2026-05-18T02:52:25Z"},{"alias_kind":"arxiv_version","alias_value":"1404.0238v2","created_at":"2026-05-18T02:52:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.0238","created_at":"2026-05-18T02:52:25Z"},{"alias_kind":"pith_short_12","alias_value":"5RDW72UPYSZQ","created_at":"2026-05-18T12:28:14Z"},{"alias_kind":"pith_short_16","alias_value":"5RDW72UPYSZQIF3S","created_at":"2026-05-18T12:28:14Z"},{"alias_kind":"pith_short_8","alias_value":"5RDW72UP","created_at":"2026-05-18T12:28:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:5RDW72UPYSZQIF3ST5Y2CJ2GOL","target":"record","payload":{"canonical_record":{"source":{"id":"1404.0238","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-04-01T13:52:55Z","cross_cats_sorted":["hep-ex","hep-ph"],"title_canon_sha256":"d72de698462aee71baa2df22f576650695321b24676d64b4849b0ffe37300a9b","abstract_canon_sha256":"3e9bf1ca3e6a4eff8271a598d79db98dbe58d114b155cd0d267c57d32334f7ac"},"schema_version":"1.0"},"canonical_sha256":"ec476fea8fc4b30417729f71a1274672c855b742211fd56591c8ad52f6918135","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:52:25.176298Z","signature_b64":"9g4Cjly4MPbLjmrjnm9MPae30ECOJ2vIBISDDAZ6oaxByXjcYsUU5x2MgMVKd62AD8j9pSm3qnSuUCazhgvJAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ec476fea8fc4b30417729f71a1274672c855b742211fd56591c8ad52f6918135","last_reissued_at":"2026-05-18T02:52:25.175646Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:52:25.175646Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1404.0238","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":"2026-05-18T02:52:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RqyBLEfX2UNBmi9okoXFm4imAjHmBoS7yLw8M/fEyLRqcVUKH9n0d8Bn9FqPBkQ92b/dqrQaoB2Jm1TKN6PVCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T11:34:34.598474Z"},"content_sha256":"6142ef929bf8402a58a3a19ae9371ff20050b7491248c85e325a421dbef7d30b","schema_version":"1.0","event_id":"sha256:6142ef929bf8402a58a3a19ae9371ff20050b7491248c85e325a421dbef7d30b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:5RDW72UPYSZQIF3ST5Y2CJ2GOL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Global fitting analysis on cosmological models after BICEP2","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex","hep-ph"],"primary_cat":"astro-ph.CO","authors_text":"Hong Li, Jun-Qing Xia, Xinmin Zhang","submitted_at":"2014-04-01T13:52:55Z","abstract_excerpt":"Recently, BICEP2 collaboration has released their results on the measurements of the CMB polarizations. In the framework of the $\\Lambda$CDM with a power law form of the scalar primordial power spectrum, this new measurement on the B-mode puts a tight constraint on tensor/scalar ratio $r=0.2^{+0.07}_{-0.05}~(1\\sigma)$, which however is in tension with the Planck limit, $r<0.11$ (95% C.L.). In this paper, we consider various extensions of the $\\Lambda$CDM model by introducing extra cosmological parameters such as the equation state of dark energy $w$, the curvature of the universe $\\Omega_k$, t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.0238","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":"2026-05-18T02:52:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Cz+2ki2I8GQKbA6mVlrxoZB7sYQ8oZV3HmUrCFjbLUfuQRtN52qKED6T3pTJzS437NCR0vUOhd+6W9HOvj+8Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T11:34:34.598825Z"},"content_sha256":"9735508d869df0eee752ebb164c835982f7ec81046cc7240549c9fbd71e3ae1c","schema_version":"1.0","event_id":"sha256:9735508d869df0eee752ebb164c835982f7ec81046cc7240549c9fbd71e3ae1c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5RDW72UPYSZQIF3ST5Y2CJ2GOL/bundle.json","state_url":"https://pith.science/pith/5RDW72UPYSZQIF3ST5Y2CJ2GOL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5RDW72UPYSZQIF3ST5Y2CJ2GOL/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":"2026-06-01T11:34:34Z","links":{"resolver":"https://pith.science/pith/5RDW72UPYSZQIF3ST5Y2CJ2GOL","bundle":"https://pith.science/pith/5RDW72UPYSZQIF3ST5Y2CJ2GOL/bundle.json","state":"https://pith.science/pith/5RDW72UPYSZQIF3ST5Y2CJ2GOL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5RDW72UPYSZQIF3ST5Y2CJ2GOL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:5RDW72UPYSZQIF3ST5Y2CJ2GOL","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":"3e9bf1ca3e6a4eff8271a598d79db98dbe58d114b155cd0d267c57d32334f7ac","cross_cats_sorted":["hep-ex","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-04-01T13:52:55Z","title_canon_sha256":"d72de698462aee71baa2df22f576650695321b24676d64b4849b0ffe37300a9b"},"schema_version":"1.0","source":{"id":"1404.0238","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1404.0238","created_at":"2026-05-18T02:52:25Z"},{"alias_kind":"arxiv_version","alias_value":"1404.0238v2","created_at":"2026-05-18T02:52:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.0238","created_at":"2026-05-18T02:52:25Z"},{"alias_kind":"pith_short_12","alias_value":"5RDW72UPYSZQ","created_at":"2026-05-18T12:28:14Z"},{"alias_kind":"pith_short_16","alias_value":"5RDW72UPYSZQIF3S","created_at":"2026-05-18T12:28:14Z"},{"alias_kind":"pith_short_8","alias_value":"5RDW72UP","created_at":"2026-05-18T12:28:14Z"}],"graph_snapshots":[{"event_id":"sha256:9735508d869df0eee752ebb164c835982f7ec81046cc7240549c9fbd71e3ae1c","target":"graph","created_at":"2026-05-18T02:52:25Z","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":"Recently, BICEP2 collaboration has released their results on the measurements of the CMB polarizations. In the framework of the $\\Lambda$CDM with a power law form of the scalar primordial power spectrum, this new measurement on the B-mode puts a tight constraint on tensor/scalar ratio $r=0.2^{+0.07}_{-0.05}~(1\\sigma)$, which however is in tension with the Planck limit, $r<0.11$ (95% C.L.). In this paper, we consider various extensions of the $\\Lambda$CDM model by introducing extra cosmological parameters such as the equation state of dark energy $w$, the curvature of the universe $\\Omega_k$, t","authors_text":"Hong Li, Jun-Qing Xia, Xinmin Zhang","cross_cats":["hep-ex","hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-04-01T13:52:55Z","title":"Global fitting analysis on cosmological models after BICEP2"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.0238","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":"sha256:6142ef929bf8402a58a3a19ae9371ff20050b7491248c85e325a421dbef7d30b","target":"record","created_at":"2026-05-18T02:52:25Z","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":"3e9bf1ca3e6a4eff8271a598d79db98dbe58d114b155cd0d267c57d32334f7ac","cross_cats_sorted":["hep-ex","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-04-01T13:52:55Z","title_canon_sha256":"d72de698462aee71baa2df22f576650695321b24676d64b4849b0ffe37300a9b"},"schema_version":"1.0","source":{"id":"1404.0238","kind":"arxiv","version":2}},"canonical_sha256":"ec476fea8fc4b30417729f71a1274672c855b742211fd56591c8ad52f6918135","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ec476fea8fc4b30417729f71a1274672c855b742211fd56591c8ad52f6918135","first_computed_at":"2026-05-18T02:52:25.175646Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:52:25.175646Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9g4Cjly4MPbLjmrjnm9MPae30ECOJ2vIBISDDAZ6oaxByXjcYsUU5x2MgMVKd62AD8j9pSm3qnSuUCazhgvJAw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:52:25.176298Z","signed_message":"canonical_sha256_bytes"},"source_id":"1404.0238","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6142ef929bf8402a58a3a19ae9371ff20050b7491248c85e325a421dbef7d30b","sha256:9735508d869df0eee752ebb164c835982f7ec81046cc7240549c9fbd71e3ae1c"],"state_sha256":"63fa7f5e8af186900057816fa6833b7371e569645f5d56a1716038b28c3a4a1a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ermO/payvCD6MHk4tXTuhhexQd5yLEyDDH0EJ7OQmLjp5wWL8JsS8U11l/rgULTqPVhpOSlZAvOVBjgsf16lBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T11:34:34.600847Z","bundle_sha256":"0d412b719dd8a1d00b1e458532a6febad2c511ff0a7c108026db4795773ba16f"}}