{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:W7XLHPXUEL2H5AE43PQFP3OUWY","short_pith_number":"pith:W7XLHPXU","canonical_record":{"source":{"id":"1606.04847","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-06-08T14:19:56Z","cross_cats_sorted":["astro-ph.SR","cond-mat.supr-con","nucl-th"],"title_canon_sha256":"bcacecb62042ffb578fd8e3a6095ebefd86cc9c51ca236d3a2e05b87063bfdf4","abstract_canon_sha256":"c2deb05ee66a9bf5139327207dc7935b0b391ae466fa9d48ebd72a9f3b154b5a"},"schema_version":"1.0"},"canonical_sha256":"b7eeb3bef422f47e809cdbe057edd4b62a4397d89527f706a8457e33c19531da","source":{"kind":"arxiv","id":"1606.04847","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1606.04847","created_at":"2026-05-18T00:56:06Z"},{"alias_kind":"arxiv_version","alias_value":"1606.04847v2","created_at":"2026-05-18T00:56:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1606.04847","created_at":"2026-05-18T00:56:06Z"},{"alias_kind":"pith_short_12","alias_value":"W7XLHPXUEL2H","created_at":"2026-05-18T12:30:48Z"},{"alias_kind":"pith_short_16","alias_value":"W7XLHPXUEL2H5AE4","created_at":"2026-05-18T12:30:48Z"},{"alias_kind":"pith_short_8","alias_value":"W7XLHPXU","created_at":"2026-05-18T12:30:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:W7XLHPXUEL2H5AE43PQFP3OUWY","target":"record","payload":{"canonical_record":{"source":{"id":"1606.04847","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-06-08T14:19:56Z","cross_cats_sorted":["astro-ph.SR","cond-mat.supr-con","nucl-th"],"title_canon_sha256":"bcacecb62042ffb578fd8e3a6095ebefd86cc9c51ca236d3a2e05b87063bfdf4","abstract_canon_sha256":"c2deb05ee66a9bf5139327207dc7935b0b391ae466fa9d48ebd72a9f3b154b5a"},"schema_version":"1.0"},"canonical_sha256":"b7eeb3bef422f47e809cdbe057edd4b62a4397d89527f706a8457e33c19531da","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:56:06.313273Z","signature_b64":"m9Cgn0WaH+SGXNa2ba8EnqefXrI2IzYBii0P2YF+wVjs8ThEuVq26dWVwU4SGgnr6O3TfrmXU/GU1RFoecDxAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b7eeb3bef422f47e809cdbe057edd4b62a4397d89527f706a8457e33c19531da","last_reissued_at":"2026-05-18T00:56:06.312835Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:56:06.312835Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1606.04847","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":"2026-05-18T00:56:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BwSheBI1vy81frEDkFIJWeh4Bt0X3HXvunUD9Ys/+WhD8kUbA+Y+xZ3QKgYpUHeBEImnqSBO57LScjN3pOZSDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T23:23:13.526846Z"},"content_sha256":"37ac99cdb2d600707c2a82c19194e7a8700148ea925510b549e1cec0d7a754f4","schema_version":"1.0","event_id":"sha256:37ac99cdb2d600707c2a82c19194e7a8700148ea925510b549e1cec0d7a754f4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:W7XLHPXUEL2H5AE43PQFP3OUWY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Vortex pinning and dynamics in the neutron star crust","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR","cond-mat.supr-con","nucl-th"],"primary_cat":"astro-ph.HE","authors_text":"Aurel Bulgac, Gabriel Wlaz{\\l}owski, Kazuyuki Sekizawa, Michael McNeil Forbes, Piotr Magierski","submitted_at":"2016-06-08T14:19:56Z","abstract_excerpt":"The nature of the interaction between superfluid vortices and the neutron star crust, conjectured by Anderson and Itoh in 1975 to be at the heart vortex creep and the cause of glitches, has been a long-standing question in astrophysics. Using a qualitatively new approach, we follow the dynamics as superfluid vortices move in response to the presence of \"nuclei\" (nuclear defects in the crust). The resulting motion is perpendicular to the force, similar to the motion of a spinning top when pushed. We show that nuclei repel vortices in the neutron star crust, and characterize the force as a funct"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1606.04847","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":"2026-05-18T00:56:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZipJZ0mItQF0d9qnrANUMpRxrtE1PTPzCJhCV6/i4mXst38S+9kxkeynthLnFXGZJW8PzydoFyk56g8wL8x5Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T23:23:13.527504Z"},"content_sha256":"a34a5acc08d595405485d9a250f1a7b51d57fd6c5c7827138ba7ea26268a063a","schema_version":"1.0","event_id":"sha256:a34a5acc08d595405485d9a250f1a7b51d57fd6c5c7827138ba7ea26268a063a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/W7XLHPXUEL2H5AE43PQFP3OUWY/bundle.json","state_url":"https://pith.science/pith/W7XLHPXUEL2H5AE43PQFP3OUWY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/W7XLHPXUEL2H5AE43PQFP3OUWY/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":"2026-05-27T23:23:13Z","links":{"resolver":"https://pith.science/pith/W7XLHPXUEL2H5AE43PQFP3OUWY","bundle":"https://pith.science/pith/W7XLHPXUEL2H5AE43PQFP3OUWY/bundle.json","state":"https://pith.science/pith/W7XLHPXUEL2H5AE43PQFP3OUWY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/W7XLHPXUEL2H5AE43PQFP3OUWY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:W7XLHPXUEL2H5AE43PQFP3OUWY","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":"c2deb05ee66a9bf5139327207dc7935b0b391ae466fa9d48ebd72a9f3b154b5a","cross_cats_sorted":["astro-ph.SR","cond-mat.supr-con","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-06-08T14:19:56Z","title_canon_sha256":"bcacecb62042ffb578fd8e3a6095ebefd86cc9c51ca236d3a2e05b87063bfdf4"},"schema_version":"1.0","source":{"id":"1606.04847","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1606.04847","created_at":"2026-05-18T00:56:06Z"},{"alias_kind":"arxiv_version","alias_value":"1606.04847v2","created_at":"2026-05-18T00:56:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1606.04847","created_at":"2026-05-18T00:56:06Z"},{"alias_kind":"pith_short_12","alias_value":"W7XLHPXUEL2H","created_at":"2026-05-18T12:30:48Z"},{"alias_kind":"pith_short_16","alias_value":"W7XLHPXUEL2H5AE4","created_at":"2026-05-18T12:30:48Z"},{"alias_kind":"pith_short_8","alias_value":"W7XLHPXU","created_at":"2026-05-18T12:30:48Z"}],"graph_snapshots":[{"event_id":"sha256:a34a5acc08d595405485d9a250f1a7b51d57fd6c5c7827138ba7ea26268a063a","target":"graph","created_at":"2026-05-18T00:56:06Z","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":"The nature of the interaction between superfluid vortices and the neutron star crust, conjectured by Anderson and Itoh in 1975 to be at the heart vortex creep and the cause of glitches, has been a long-standing question in astrophysics. Using a qualitatively new approach, we follow the dynamics as superfluid vortices move in response to the presence of \"nuclei\" (nuclear defects in the crust). The resulting motion is perpendicular to the force, similar to the motion of a spinning top when pushed. We show that nuclei repel vortices in the neutron star crust, and characterize the force as a funct","authors_text":"Aurel Bulgac, Gabriel Wlaz{\\l}owski, Kazuyuki Sekizawa, Michael McNeil Forbes, Piotr Magierski","cross_cats":["astro-ph.SR","cond-mat.supr-con","nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-06-08T14:19:56Z","title":"Vortex pinning and dynamics in the neutron star crust"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1606.04847","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":"sha256:37ac99cdb2d600707c2a82c19194e7a8700148ea925510b549e1cec0d7a754f4","target":"record","created_at":"2026-05-18T00:56:06Z","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":"c2deb05ee66a9bf5139327207dc7935b0b391ae466fa9d48ebd72a9f3b154b5a","cross_cats_sorted":["astro-ph.SR","cond-mat.supr-con","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-06-08T14:19:56Z","title_canon_sha256":"bcacecb62042ffb578fd8e3a6095ebefd86cc9c51ca236d3a2e05b87063bfdf4"},"schema_version":"1.0","source":{"id":"1606.04847","kind":"arxiv","version":2}},"canonical_sha256":"b7eeb3bef422f47e809cdbe057edd4b62a4397d89527f706a8457e33c19531da","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b7eeb3bef422f47e809cdbe057edd4b62a4397d89527f706a8457e33c19531da","first_computed_at":"2026-05-18T00:56:06.312835Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:56:06.312835Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"m9Cgn0WaH+SGXNa2ba8EnqefXrI2IzYBii0P2YF+wVjs8ThEuVq26dWVwU4SGgnr6O3TfrmXU/GU1RFoecDxAw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:56:06.313273Z","signed_message":"canonical_sha256_bytes"},"source_id":"1606.04847","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:37ac99cdb2d600707c2a82c19194e7a8700148ea925510b549e1cec0d7a754f4","sha256:a34a5acc08d595405485d9a250f1a7b51d57fd6c5c7827138ba7ea26268a063a"],"state_sha256":"6e702f4f787fdcb7954aaf54c81ad17c9f2ae18a91b40c721e19e5728e10bb35"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jJilKZ/qqrza67noxpcIYPIG1fp4g6xO+YHcuAwJJZJndgVqxKlaiSD7h7EF5nXfS50ElZyrsrwVy1vWuCpCBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T23:23:13.530966Z","bundle_sha256":"055500428115e6e439786fd98483d7c1a84c623110ae6790b8b3fd37a08763e9"}}