{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:NAPZ7YCZP2JQBSH2SEPYR7LKL2","short_pith_number":"pith:NAPZ7YCZ","canonical_record":{"source":{"id":"2504.06181","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2025-04-08T16:22:36Z","cross_cats_sorted":["astro-ph.HE","nucl-th"],"title_canon_sha256":"c559e789499f64ed1422fb3c884ac7f7f353a755c5274f623ddbe3c3439432c8","abstract_canon_sha256":"1d14b2a04b7cc42082bc526329c267e507cda459424c65b25548c686a3e7c44d"},"schema_version":"1.0"},"canonical_sha256":"681f9fe0597e9300c8fa911f88fd6a5e917f58763e862804e22d7eafda6a2bde","source":{"kind":"arxiv","id":"2504.06181","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2504.06181","created_at":"2026-07-05T11:57:35Z"},{"alias_kind":"arxiv_version","alias_value":"2504.06181v3","created_at":"2026-07-05T11:57:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.06181","created_at":"2026-07-05T11:57:35Z"},{"alias_kind":"pith_short_12","alias_value":"NAPZ7YCZP2JQ","created_at":"2026-07-05T11:57:35Z"},{"alias_kind":"pith_short_16","alias_value":"NAPZ7YCZP2JQBSH2","created_at":"2026-07-05T11:57:35Z"},{"alias_kind":"pith_short_8","alias_value":"NAPZ7YCZ","created_at":"2026-07-05T11:57:35Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:NAPZ7YCZP2JQBSH2SEPYR7LKL2","target":"record","payload":{"canonical_record":{"source":{"id":"2504.06181","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2025-04-08T16:22:36Z","cross_cats_sorted":["astro-ph.HE","nucl-th"],"title_canon_sha256":"c559e789499f64ed1422fb3c884ac7f7f353a755c5274f623ddbe3c3439432c8","abstract_canon_sha256":"1d14b2a04b7cc42082bc526329c267e507cda459424c65b25548c686a3e7c44d"},"schema_version":"1.0"},"canonical_sha256":"681f9fe0597e9300c8fa911f88fd6a5e917f58763e862804e22d7eafda6a2bde","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:57:35.643746Z","signature_b64":"hIUO0plqZtzeQE9T8JNj6JZS3GrrV5w7EJ1cV993yzl9/JZqUcR97uVnSnyL1hSGwyQrtiM5ZnmyR76Vg49pBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"681f9fe0597e9300c8fa911f88fd6a5e917f58763e862804e22d7eafda6a2bde","last_reissued_at":"2026-07-05T11:57:35.643148Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:57:35.643148Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2504.06181","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":"2026-07-05T11:57:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"utR1QesqU/j3TZdbD3TypSWXMoklMopVoamgraMZ2utka3Ui9FNmpsAbnIEhnLUlS/eOoDz1ka1qz8IzzT9VAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T08:12:17.924139Z"},"content_sha256":"6ad4d70c602e1337bf7956aec04de19c3e0a3c28f6a88d212dd7fa12549d89d7","schema_version":"1.0","event_id":"sha256:6ad4d70c602e1337bf7956aec04de19c3e0a3c28f6a88d212dd7fa12549d89d7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:NAPZ7YCZP2JQBSH2SEPYR7LKL2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Interface modes in inspiralling neutron stars: A gravitational-wave probe of first-order phase transitions","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.HE","nucl-th"],"primary_cat":"gr-qc","authors_text":"A. R. Counsell, F. Gittins, I. Tews, N. Andersson","submitted_at":"2025-04-08T16:22:36Z","abstract_excerpt":"At the extreme densities in neutron stars, a phase transition to deconfined quark matter is anticipated. Yet masses, radii and tidal deformabilities offer only indirect measures of a first-order phase transition, requiring many detections to resolve or being ineffective observables if the discontinuity exists at lower densities. We report on a smoking-gun gravitational-wave signature of a first-order transition: the resonant tidal excitation of an interface mode. Using relativistic perturbation theory with an equation-of-state family informed by chiral effective field theory, we show that such"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.06181","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2504.06181/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":"2026-07-05T11:57:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Qx+pkY2Uvanj5GKxJxM+D2nxx8St4Xc64O96RSniphsC0g+AQfx6JpzjB3sgSfMVFiYyhHyOyqWUCF2nYmerCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T08:12:17.924703Z"},"content_sha256":"71b84d93bb099248eacaa0ec60203d8f3cee2be63019d44d2c607173902a34af","schema_version":"1.0","event_id":"sha256:71b84d93bb099248eacaa0ec60203d8f3cee2be63019d44d2c607173902a34af"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NAPZ7YCZP2JQBSH2SEPYR7LKL2/bundle.json","state_url":"https://pith.science/pith/NAPZ7YCZP2JQBSH2SEPYR7LKL2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NAPZ7YCZP2JQBSH2SEPYR7LKL2/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":"2026-08-09T08:12:17Z","links":{"resolver":"https://pith.science/pith/NAPZ7YCZP2JQBSH2SEPYR7LKL2","bundle":"https://pith.science/pith/NAPZ7YCZP2JQBSH2SEPYR7LKL2/bundle.json","state":"https://pith.science/pith/NAPZ7YCZP2JQBSH2SEPYR7LKL2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NAPZ7YCZP2JQBSH2SEPYR7LKL2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:NAPZ7YCZP2JQBSH2SEPYR7LKL2","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":"1d14b2a04b7cc42082bc526329c267e507cda459424c65b25548c686a3e7c44d","cross_cats_sorted":["astro-ph.HE","nucl-th"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2025-04-08T16:22:36Z","title_canon_sha256":"c559e789499f64ed1422fb3c884ac7f7f353a755c5274f623ddbe3c3439432c8"},"schema_version":"1.0","source":{"id":"2504.06181","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2504.06181","created_at":"2026-07-05T11:57:35Z"},{"alias_kind":"arxiv_version","alias_value":"2504.06181v3","created_at":"2026-07-05T11:57:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.06181","created_at":"2026-07-05T11:57:35Z"},{"alias_kind":"pith_short_12","alias_value":"NAPZ7YCZP2JQ","created_at":"2026-07-05T11:57:35Z"},{"alias_kind":"pith_short_16","alias_value":"NAPZ7YCZP2JQBSH2","created_at":"2026-07-05T11:57:35Z"},{"alias_kind":"pith_short_8","alias_value":"NAPZ7YCZ","created_at":"2026-07-05T11:57:35Z"}],"graph_snapshots":[{"event_id":"sha256:71b84d93bb099248eacaa0ec60203d8f3cee2be63019d44d2c607173902a34af","target":"graph","created_at":"2026-07-05T11:57:35Z","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/2504.06181/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"At the extreme densities in neutron stars, a phase transition to deconfined quark matter is anticipated. Yet masses, radii and tidal deformabilities offer only indirect measures of a first-order phase transition, requiring many detections to resolve or being ineffective observables if the discontinuity exists at lower densities. We report on a smoking-gun gravitational-wave signature of a first-order transition: the resonant tidal excitation of an interface mode. Using relativistic perturbation theory with an equation-of-state family informed by chiral effective field theory, we show that such","authors_text":"A. R. Counsell, F. Gittins, I. Tews, N. Andersson","cross_cats":["astro-ph.HE","nucl-th"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2025-04-08T16:22:36Z","title":"Interface modes in inspiralling neutron stars: A gravitational-wave probe of first-order phase transitions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.06181","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":"sha256:6ad4d70c602e1337bf7956aec04de19c3e0a3c28f6a88d212dd7fa12549d89d7","target":"record","created_at":"2026-07-05T11:57:35Z","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":"1d14b2a04b7cc42082bc526329c267e507cda459424c65b25548c686a3e7c44d","cross_cats_sorted":["astro-ph.HE","nucl-th"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"gr-qc","submitted_at":"2025-04-08T16:22:36Z","title_canon_sha256":"c559e789499f64ed1422fb3c884ac7f7f353a755c5274f623ddbe3c3439432c8"},"schema_version":"1.0","source":{"id":"2504.06181","kind":"arxiv","version":3}},"canonical_sha256":"681f9fe0597e9300c8fa911f88fd6a5e917f58763e862804e22d7eafda6a2bde","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"681f9fe0597e9300c8fa911f88fd6a5e917f58763e862804e22d7eafda6a2bde","first_computed_at":"2026-07-05T11:57:35.643148Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:57:35.643148Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hIUO0plqZtzeQE9T8JNj6JZS3GrrV5w7EJ1cV993yzl9/JZqUcR97uVnSnyL1hSGwyQrtiM5ZnmyR76Vg49pBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T11:57:35.643746Z","signed_message":"canonical_sha256_bytes"},"source_id":"2504.06181","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6ad4d70c602e1337bf7956aec04de19c3e0a3c28f6a88d212dd7fa12549d89d7","sha256:71b84d93bb099248eacaa0ec60203d8f3cee2be63019d44d2c607173902a34af"],"state_sha256":"59764fa2b327167fa5c31268d7824d34ce6b342f10c79cf170f52239de0cef74"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2mjRJ6AcEpqEni5WlxkUiQB6zyEjTlX3AyO/1xYgqJNbgpQeUG1lS/7YjZMrmSaKEY6xTkKHL15Ebm/6CUxLBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-09T08:12:17.928532Z","bundle_sha256":"02d6143f32e59cda2d510dca4151123281801537781b665a216324e15ac23194"}}