{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:2UD6ZASVPBVFH2JWX5ALAEYVDF","short_pith_number":"pith:2UD6ZASV","canonical_record":{"source":{"id":"1904.01016","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-04-01T18:00:00Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"e672d82dfa055d56242cbd7aec40350791c70488bda45f7d1e203cfbdc0f47f3","abstract_canon_sha256":"1a115606a7990281b0d746599caa34aeedbdc43e8b3127975f2d1828990c9614"},"schema_version":"1.0"},"canonical_sha256":"d507ec8255786a53e936bf40b01315196f4161edf9a01f85d5ec7879900e9973","source":{"kind":"arxiv","id":"1904.01016","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.01016","created_at":"2026-07-05T06:59:49Z"},{"alias_kind":"arxiv_version","alias_value":"1904.01016v2","created_at":"2026-07-05T06:59:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.01016","created_at":"2026-07-05T06:59:49Z"},{"alias_kind":"pith_short_12","alias_value":"2UD6ZASVPBVF","created_at":"2026-07-05T06:59:49Z"},{"alias_kind":"pith_short_16","alias_value":"2UD6ZASVPBVFH2JW","created_at":"2026-07-05T06:59:49Z"},{"alias_kind":"pith_short_8","alias_value":"2UD6ZASV","created_at":"2026-07-05T06:59:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:2UD6ZASVPBVFH2JWX5ALAEYVDF","target":"record","payload":{"canonical_record":{"source":{"id":"1904.01016","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-04-01T18:00:00Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"e672d82dfa055d56242cbd7aec40350791c70488bda45f7d1e203cfbdc0f47f3","abstract_canon_sha256":"1a115606a7990281b0d746599caa34aeedbdc43e8b3127975f2d1828990c9614"},"schema_version":"1.0"},"canonical_sha256":"d507ec8255786a53e936bf40b01315196f4161edf9a01f85d5ec7879900e9973","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:59:49.350649Z","signature_b64":"4PFwOQ/GXFTfPTnJtevow16lSd2pcmB/L9olQmZnA4xOqpFT/JumKDL/YfrKWyGIrKgHfl+PUcFhximc0gafDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d507ec8255786a53e936bf40b01315196f4161edf9a01f85d5ec7879900e9973","last_reissued_at":"2026-07-05T06:59:49.350161Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:59:49.350161Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1904.01016","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":"2026-07-05T06:59:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KadTYUoNiYod/2329JmgAeS3G+pmuVjJSBEtdCk88mVVBjyOHUkkH23mCPB09FWhMIhi9ibDLJV3R+6SVXG8Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T14:02:01.579944Z"},"content_sha256":"e608d15c1fa2995a520a1713d686671fd33e27b543d3c7ec0034baaa9c53992b","schema_version":"1.0","event_id":"sha256:e608d15c1fa2995a520a1713d686671fd33e27b543d3c7ec0034baaa9c53992b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:2UD6ZASVPBVFH2JWX5ALAEYVDF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Rock 'n' Roll Solutions to the Hubble Tension","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"astro-ph.CO","authors_text":"David Pinner, Francis-Yan Cyr-Racine, Lisa Randall, Prateek Agrawal","submitted_at":"2019-04-01T18:00:00Z","abstract_excerpt":"Local measurements of the Hubble parameter are increasingly in tension with the value inferred from a $\\Lambda$CDM fit to the cosmic microwave background (CMB) data. In this paper, we construct scenarios in which evolving scalar fields significantly ease this tension by adding energy to the Universe around recombination in a narrow redshift window. We identify solutions with scalar field potential $V \\propto \\phi^{2n}$ that have simple asymptotic behavior, both oscillatory (rocking) and rolling. These solutions consistently describe both the field evolution and its fluctuations without approxi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.01016","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1904.01016/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T06:59:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"S8ErkL0QBDkq5VtPhXtih8e+sr0n2L3Zo+NbI1Kvp5jmDgd9BW9JJEodagXl35K9en04EtLCMS2EzCp9ULQxBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T14:02:01.596854Z"},"content_sha256":"a9cd25eb5b03469b14a3055a97b647618494f4cf84e16946e5a17a344754528b","schema_version":"1.0","event_id":"sha256:a9cd25eb5b03469b14a3055a97b647618494f4cf84e16946e5a17a344754528b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2UD6ZASVPBVFH2JWX5ALAEYVDF/bundle.json","state_url":"https://pith.science/pith/2UD6ZASVPBVFH2JWX5ALAEYVDF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2UD6ZASVPBVFH2JWX5ALAEYVDF/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":"2026-08-05T14:02:01Z","links":{"resolver":"https://pith.science/pith/2UD6ZASVPBVFH2JWX5ALAEYVDF","bundle":"https://pith.science/pith/2UD6ZASVPBVFH2JWX5ALAEYVDF/bundle.json","state":"https://pith.science/pith/2UD6ZASVPBVFH2JWX5ALAEYVDF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2UD6ZASVPBVFH2JWX5ALAEYVDF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:2UD6ZASVPBVFH2JWX5ALAEYVDF","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":"1a115606a7990281b0d746599caa34aeedbdc43e8b3127975f2d1828990c9614","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-04-01T18:00:00Z","title_canon_sha256":"e672d82dfa055d56242cbd7aec40350791c70488bda45f7d1e203cfbdc0f47f3"},"schema_version":"1.0","source":{"id":"1904.01016","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.01016","created_at":"2026-07-05T06:59:49Z"},{"alias_kind":"arxiv_version","alias_value":"1904.01016v2","created_at":"2026-07-05T06:59:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.01016","created_at":"2026-07-05T06:59:49Z"},{"alias_kind":"pith_short_12","alias_value":"2UD6ZASVPBVF","created_at":"2026-07-05T06:59:49Z"},{"alias_kind":"pith_short_16","alias_value":"2UD6ZASVPBVFH2JW","created_at":"2026-07-05T06:59:49Z"},{"alias_kind":"pith_short_8","alias_value":"2UD6ZASV","created_at":"2026-07-05T06:59:49Z"}],"graph_snapshots":[{"event_id":"sha256:a9cd25eb5b03469b14a3055a97b647618494f4cf84e16946e5a17a344754528b","target":"graph","created_at":"2026-07-05T06:59:49Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/1904.01016/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Local measurements of the Hubble parameter are increasingly in tension with the value inferred from a $\\Lambda$CDM fit to the cosmic microwave background (CMB) data. In this paper, we construct scenarios in which evolving scalar fields significantly ease this tension by adding energy to the Universe around recombination in a narrow redshift window. We identify solutions with scalar field potential $V \\propto \\phi^{2n}$ that have simple asymptotic behavior, both oscillatory (rocking) and rolling. These solutions consistently describe both the field evolution and its fluctuations without approxi","authors_text":"David Pinner, Francis-Yan Cyr-Racine, Lisa Randall, Prateek Agrawal","cross_cats":["hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-04-01T18:00:00Z","title":"Rock 'n' Roll Solutions to the Hubble Tension"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.01016","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:e608d15c1fa2995a520a1713d686671fd33e27b543d3c7ec0034baaa9c53992b","target":"record","created_at":"2026-07-05T06:59:49Z","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":"1a115606a7990281b0d746599caa34aeedbdc43e8b3127975f2d1828990c9614","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-04-01T18:00:00Z","title_canon_sha256":"e672d82dfa055d56242cbd7aec40350791c70488bda45f7d1e203cfbdc0f47f3"},"schema_version":"1.0","source":{"id":"1904.01016","kind":"arxiv","version":2}},"canonical_sha256":"d507ec8255786a53e936bf40b01315196f4161edf9a01f85d5ec7879900e9973","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d507ec8255786a53e936bf40b01315196f4161edf9a01f85d5ec7879900e9973","first_computed_at":"2026-07-05T06:59:49.350161Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:59:49.350161Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4PFwOQ/GXFTfPTnJtevow16lSd2pcmB/L9olQmZnA4xOqpFT/JumKDL/YfrKWyGIrKgHfl+PUcFhximc0gafDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T06:59:49.350649Z","signed_message":"canonical_sha256_bytes"},"source_id":"1904.01016","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e608d15c1fa2995a520a1713d686671fd33e27b543d3c7ec0034baaa9c53992b","sha256:a9cd25eb5b03469b14a3055a97b647618494f4cf84e16946e5a17a344754528b"],"state_sha256":"597ddf2595d3158facb76b2d109951737b6fc44245c8eeb16c878d708f0f2e71"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iuR1N4LYGuXzO/6gvvIiAzs1zkNRy1zNULFuVEXAUllqof0owfx2IFKtpIXp5jpQKTNrFx2kdQzmDrt++SLZAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T14:02:01.604693Z","bundle_sha256":"38878d067daf8c714b71e218433f482bf3516764b7c3e5bc550aa72540964597"}}