{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:NPNULXJOEQL5HZ3BLGPJTQZT4K","short_pith_number":"pith:NPNULXJO","canonical_record":{"source":{"id":"1303.1315","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2013-03-06T12:25:54Z","cross_cats_sorted":[],"title_canon_sha256":"1cd937bbefbea4d4dc8f61c895d590f6099f0fc68cdc77e2e26c8fda7d5669c1","abstract_canon_sha256":"de98c3b47d51a2453531d597e8a16ef51db4f28ded58a6b5d59c378460c8efcd"},"schema_version":"1.0"},"canonical_sha256":"6bdb45dd2e2417d3e761599e99c333e2bbd0668eca7d6b3c84cc3d02b7929553","source":{"kind":"arxiv","id":"1303.1315","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1303.1315","created_at":"2026-05-18T01:51:16Z"},{"alias_kind":"arxiv_version","alias_value":"1303.1315v1","created_at":"2026-05-18T01:51:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.1315","created_at":"2026-05-18T01:51:16Z"},{"alias_kind":"pith_short_12","alias_value":"NPNULXJOEQL5","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_16","alias_value":"NPNULXJOEQL5HZ3B","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_8","alias_value":"NPNULXJO","created_at":"2026-05-18T12:27:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:NPNULXJOEQL5HZ3BLGPJTQZT4K","target":"record","payload":{"canonical_record":{"source":{"id":"1303.1315","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2013-03-06T12:25:54Z","cross_cats_sorted":[],"title_canon_sha256":"1cd937bbefbea4d4dc8f61c895d590f6099f0fc68cdc77e2e26c8fda7d5669c1","abstract_canon_sha256":"de98c3b47d51a2453531d597e8a16ef51db4f28ded58a6b5d59c378460c8efcd"},"schema_version":"1.0"},"canonical_sha256":"6bdb45dd2e2417d3e761599e99c333e2bbd0668eca7d6b3c84cc3d02b7929553","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:51:16.311641Z","signature_b64":"BzoA96tUHLqWKdhnObMd9fkHmEEabbMQ69PRnIrFiFEUBgBksOWeoGl5EenR8tJZED0YQKmozt5K0Cmm7oXJAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6bdb45dd2e2417d3e761599e99c333e2bbd0668eca7d6b3c84cc3d02b7929553","last_reissued_at":"2026-05-18T01:51:16.311046Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:51:16.311046Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1303.1315","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:51:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rZhhXTHfKTllMFfOKNqEx9xNhIG64u13Ubc/SimKZetLdHan0Y91+QA464oCjyV5I9cRBZDQe0AUYi9NT/GLBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T20:49:17.205929Z"},"content_sha256":"e3d7356c3c6657fbfcb07b352d443fb3183bfc2ff23614e8be500477ca6ca7a5","schema_version":"1.0","event_id":"sha256:e3d7356c3c6657fbfcb07b352d443fb3183bfc2ff23614e8be500477ca6ca7a5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:NPNULXJOEQL5HZ3BLGPJTQZT4K","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Dynamics of the inner crust of neutron stars: hydrodynamics, elasticity and collective modes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-th","authors_text":"C. J. Pethick, D. Kobyakov","submitted_at":"2013-03-06T12:25:54Z","abstract_excerpt":"We present calculations of the hydrodynamics of the inner crust of neutron stars, where a superfluid neutron liquid coexists with a lattice of neutron-rich nuclei. The long-wavelength collective oscillations are combinations of phonons in the lattice and phonons in the superfluid neutrons. Velocities of collective modes are calculated from information about effective nucleon-nucleon interactions derived from Lattimer and Swesty's microscopic calculations based on a compressible liquid drop picture of the atomic nuclei and the surrounding neutrons."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.1315","kind":"arxiv","version":1},"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":"2026-05-18T01:51:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ykBzS/6m6z65UbMLr49KP/cKab6QdcZ05H9huavenorXPK36qidAi+6NarIv/6azFcG0sL8cGpnQH5lrOkAJAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T20:49:17.206668Z"},"content_sha256":"7d32e7b1b2125a1cc624ff3a184cb4a723547e18225a084d4b9205e1a390787d","schema_version":"1.0","event_id":"sha256:7d32e7b1b2125a1cc624ff3a184cb4a723547e18225a084d4b9205e1a390787d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NPNULXJOEQL5HZ3BLGPJTQZT4K/bundle.json","state_url":"https://pith.science/pith/NPNULXJOEQL5HZ3BLGPJTQZT4K/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NPNULXJOEQL5HZ3BLGPJTQZT4K/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":"2026-06-07T20:49:17Z","links":{"resolver":"https://pith.science/pith/NPNULXJOEQL5HZ3BLGPJTQZT4K","bundle":"https://pith.science/pith/NPNULXJOEQL5HZ3BLGPJTQZT4K/bundle.json","state":"https://pith.science/pith/NPNULXJOEQL5HZ3BLGPJTQZT4K/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NPNULXJOEQL5HZ3BLGPJTQZT4K/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:NPNULXJOEQL5HZ3BLGPJTQZT4K","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":"de98c3b47d51a2453531d597e8a16ef51db4f28ded58a6b5d59c378460c8efcd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2013-03-06T12:25:54Z","title_canon_sha256":"1cd937bbefbea4d4dc8f61c895d590f6099f0fc68cdc77e2e26c8fda7d5669c1"},"schema_version":"1.0","source":{"id":"1303.1315","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1303.1315","created_at":"2026-05-18T01:51:16Z"},{"alias_kind":"arxiv_version","alias_value":"1303.1315v1","created_at":"2026-05-18T01:51:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.1315","created_at":"2026-05-18T01:51:16Z"},{"alias_kind":"pith_short_12","alias_value":"NPNULXJOEQL5","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_16","alias_value":"NPNULXJOEQL5HZ3B","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_8","alias_value":"NPNULXJO","created_at":"2026-05-18T12:27:52Z"}],"graph_snapshots":[{"event_id":"sha256:7d32e7b1b2125a1cc624ff3a184cb4a723547e18225a084d4b9205e1a390787d","target":"graph","created_at":"2026-05-18T01:51:16Z","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 present calculations of the hydrodynamics of the inner crust of neutron stars, where a superfluid neutron liquid coexists with a lattice of neutron-rich nuclei. The long-wavelength collective oscillations are combinations of phonons in the lattice and phonons in the superfluid neutrons. Velocities of collective modes are calculated from information about effective nucleon-nucleon interactions derived from Lattimer and Swesty's microscopic calculations based on a compressible liquid drop picture of the atomic nuclei and the surrounding neutrons.","authors_text":"C. J. Pethick, D. Kobyakov","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2013-03-06T12:25:54Z","title":"Dynamics of the inner crust of neutron stars: hydrodynamics, elasticity and collective modes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.1315","kind":"arxiv","version":1},"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:e3d7356c3c6657fbfcb07b352d443fb3183bfc2ff23614e8be500477ca6ca7a5","target":"record","created_at":"2026-05-18T01:51:16Z","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":"de98c3b47d51a2453531d597e8a16ef51db4f28ded58a6b5d59c378460c8efcd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2013-03-06T12:25:54Z","title_canon_sha256":"1cd937bbefbea4d4dc8f61c895d590f6099f0fc68cdc77e2e26c8fda7d5669c1"},"schema_version":"1.0","source":{"id":"1303.1315","kind":"arxiv","version":1}},"canonical_sha256":"6bdb45dd2e2417d3e761599e99c333e2bbd0668eca7d6b3c84cc3d02b7929553","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6bdb45dd2e2417d3e761599e99c333e2bbd0668eca7d6b3c84cc3d02b7929553","first_computed_at":"2026-05-18T01:51:16.311046Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:51:16.311046Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BzoA96tUHLqWKdhnObMd9fkHmEEabbMQ69PRnIrFiFEUBgBksOWeoGl5EenR8tJZED0YQKmozt5K0Cmm7oXJAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:51:16.311641Z","signed_message":"canonical_sha256_bytes"},"source_id":"1303.1315","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e3d7356c3c6657fbfcb07b352d443fb3183bfc2ff23614e8be500477ca6ca7a5","sha256:7d32e7b1b2125a1cc624ff3a184cb4a723547e18225a084d4b9205e1a390787d"],"state_sha256":"d24d59d846352af81af1a8cea3f7088642e4a8183e4ac0455f91116d633dfb5c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Kiq94KPcRFhpjRBg2WsIEdUPRL3t9WLtVKCqBqgwj+DqUievoz7lZaCS5WDMzHLWI6gl5BlWrifHblqUYWZ5AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T20:49:17.211035Z","bundle_sha256":"ebc3a8fc2f74a3512b98a18472d6e2f9fc72d729e2df24c1ebe7e5f327169ec9"}}