{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:UTIWIEEVRV6U2OLGSNGOWK7BAQ","short_pith_number":"pith:UTIWIEEV","canonical_record":{"source":{"id":"1403.2829","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-03-12T07:37:19Z","cross_cats_sorted":[],"title_canon_sha256":"68c3c0e8d6b619c8c4ef0fe5b438f26e5f943b8b57df574eb176f622c1aedf37","abstract_canon_sha256":"d96401e5ad71e29bd5f1008f392090b220bc63a40e33b666efb3e3c371cc4b43"},"schema_version":"1.0"},"canonical_sha256":"a4d16410958d7d4d3966934ceb2be104134973c82084799ce10c38496dbc40b0","source":{"kind":"arxiv","id":"1403.2829","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.2829","created_at":"2026-05-18T01:22:08Z"},{"alias_kind":"arxiv_version","alias_value":"1403.2829v2","created_at":"2026-05-18T01:22:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.2829","created_at":"2026-05-18T01:22:08Z"},{"alias_kind":"pith_short_12","alias_value":"UTIWIEEVRV6U","created_at":"2026-05-18T12:28:52Z"},{"alias_kind":"pith_short_16","alias_value":"UTIWIEEVRV6U2OLG","created_at":"2026-05-18T12:28:52Z"},{"alias_kind":"pith_short_8","alias_value":"UTIWIEEV","created_at":"2026-05-18T12:28:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:UTIWIEEVRV6U2OLGSNGOWK7BAQ","target":"record","payload":{"canonical_record":{"source":{"id":"1403.2829","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-03-12T07:37:19Z","cross_cats_sorted":[],"title_canon_sha256":"68c3c0e8d6b619c8c4ef0fe5b438f26e5f943b8b57df574eb176f622c1aedf37","abstract_canon_sha256":"d96401e5ad71e29bd5f1008f392090b220bc63a40e33b666efb3e3c371cc4b43"},"schema_version":"1.0"},"canonical_sha256":"a4d16410958d7d4d3966934ceb2be104134973c82084799ce10c38496dbc40b0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:22:08.679336Z","signature_b64":"IiYzbnNDal+zM6hyLwxfYK5TaHbaXFouXNfc6ZTvAIwtVOSnENie0x59nXhAEjknZ2BHC293ue1mF/2E/NsSCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a4d16410958d7d4d3966934ceb2be104134973c82084799ce10c38496dbc40b0","last_reissued_at":"2026-05-18T01:22:08.678763Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:22:08.678763Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1403.2829","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":"2026-05-18T01:22:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UuA0KaMHi6cK6tJo7p634K2eO4k4tf9fscj8APbueJ1HyF21/+tnnf6Agr2EUMO2CicOXRAHvKi4zB4CeeDpBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T03:59:41.059936Z"},"content_sha256":"b6056285091c5d196dec336eeb6797329dd3d9e439e3f1ce05d576d8538ac486","schema_version":"1.0","event_id":"sha256:b6056285091c5d196dec336eeb6797329dd3d9e439e3f1ce05d576d8538ac486"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:UTIWIEEVRV6U2OLGSNGOWK7BAQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Upper critical field and (non)-superconductivity of magnetars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Armen Sedrakian (ITP, Frankfurt U), Monika Sinha (ITP","submitted_at":"2014-03-12T07:37:19Z","abstract_excerpt":"We construct equilibrium models of compact stars using a realistic equation of state and obtain the density range occupied by the proton superconductor in strong $B$-fields. We do so by combining the density profiles of our models with microscopic calculations of proton pairing gaps and the critical unpairing field $H_{c2}$ above which the proton type-II superconductivity is destroyed. We find that magnetars with interior homogeneous field within the range $0.1 \\le B_{16}\\le 2$, where $B_{16} = B/10^{16}$ G, are partially superconducting, whereas those with $B_{16} > 2$ are void of superconduc"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.2829","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":"2026-05-18T01:22:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Nc3Ix1IPF1OYL9z+FTF5Ig/UWYoRFS57fF2kU7CLPEBldcYyaNggS8nMXRQLngKOCq/HLxhpAhDrJn8Z8tW9CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T03:59:41.060576Z"},"content_sha256":"335449b0c7d9ed3df400058623788e6999eab533bec4bd63a0100c6409cdec7d","schema_version":"1.0","event_id":"sha256:335449b0c7d9ed3df400058623788e6999eab533bec4bd63a0100c6409cdec7d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UTIWIEEVRV6U2OLGSNGOWK7BAQ/bundle.json","state_url":"https://pith.science/pith/UTIWIEEVRV6U2OLGSNGOWK7BAQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UTIWIEEVRV6U2OLGSNGOWK7BAQ/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":"2026-05-31T03:59:41Z","links":{"resolver":"https://pith.science/pith/UTIWIEEVRV6U2OLGSNGOWK7BAQ","bundle":"https://pith.science/pith/UTIWIEEVRV6U2OLGSNGOWK7BAQ/bundle.json","state":"https://pith.science/pith/UTIWIEEVRV6U2OLGSNGOWK7BAQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UTIWIEEVRV6U2OLGSNGOWK7BAQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:UTIWIEEVRV6U2OLGSNGOWK7BAQ","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":"d96401e5ad71e29bd5f1008f392090b220bc63a40e33b666efb3e3c371cc4b43","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-03-12T07:37:19Z","title_canon_sha256":"68c3c0e8d6b619c8c4ef0fe5b438f26e5f943b8b57df574eb176f622c1aedf37"},"schema_version":"1.0","source":{"id":"1403.2829","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.2829","created_at":"2026-05-18T01:22:08Z"},{"alias_kind":"arxiv_version","alias_value":"1403.2829v2","created_at":"2026-05-18T01:22:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.2829","created_at":"2026-05-18T01:22:08Z"},{"alias_kind":"pith_short_12","alias_value":"UTIWIEEVRV6U","created_at":"2026-05-18T12:28:52Z"},{"alias_kind":"pith_short_16","alias_value":"UTIWIEEVRV6U2OLG","created_at":"2026-05-18T12:28:52Z"},{"alias_kind":"pith_short_8","alias_value":"UTIWIEEV","created_at":"2026-05-18T12:28:52Z"}],"graph_snapshots":[{"event_id":"sha256:335449b0c7d9ed3df400058623788e6999eab533bec4bd63a0100c6409cdec7d","target":"graph","created_at":"2026-05-18T01:22:08Z","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 construct equilibrium models of compact stars using a realistic equation of state and obtain the density range occupied by the proton superconductor in strong $B$-fields. We do so by combining the density profiles of our models with microscopic calculations of proton pairing gaps and the critical unpairing field $H_{c2}$ above which the proton type-II superconductivity is destroyed. We find that magnetars with interior homogeneous field within the range $0.1 \\le B_{16}\\le 2$, where $B_{16} = B/10^{16}$ G, are partially superconducting, whereas those with $B_{16} > 2$ are void of superconduc","authors_text":"Armen Sedrakian (ITP, Frankfurt U), Monika Sinha (ITP","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-03-12T07:37:19Z","title":"Upper critical field and (non)-superconductivity of magnetars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.2829","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:b6056285091c5d196dec336eeb6797329dd3d9e439e3f1ce05d576d8538ac486","target":"record","created_at":"2026-05-18T01:22:08Z","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":"d96401e5ad71e29bd5f1008f392090b220bc63a40e33b666efb3e3c371cc4b43","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-03-12T07:37:19Z","title_canon_sha256":"68c3c0e8d6b619c8c4ef0fe5b438f26e5f943b8b57df574eb176f622c1aedf37"},"schema_version":"1.0","source":{"id":"1403.2829","kind":"arxiv","version":2}},"canonical_sha256":"a4d16410958d7d4d3966934ceb2be104134973c82084799ce10c38496dbc40b0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a4d16410958d7d4d3966934ceb2be104134973c82084799ce10c38496dbc40b0","first_computed_at":"2026-05-18T01:22:08.678763Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:22:08.678763Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"IiYzbnNDal+zM6hyLwxfYK5TaHbaXFouXNfc6ZTvAIwtVOSnENie0x59nXhAEjknZ2BHC293ue1mF/2E/NsSCg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:22:08.679336Z","signed_message":"canonical_sha256_bytes"},"source_id":"1403.2829","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b6056285091c5d196dec336eeb6797329dd3d9e439e3f1ce05d576d8538ac486","sha256:335449b0c7d9ed3df400058623788e6999eab533bec4bd63a0100c6409cdec7d"],"state_sha256":"baa7578a81dc0be8cd8292df0b41a96283bf12c46ca794d407908ee82f19ea00"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PC9S6WdKdubmGbi3zPOVxq8eQ1OQB+vq4kZ/KsBhCb6ztlfXVYrAhew2WNg6fCXXJkUMjJmpA5ydQ/Z07SORAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T03:59:41.063679Z","bundle_sha256":"8f7198eab7f5917cc1abbb7fd21a443ddf4d3b3c40a930ca439afcbd78eebff0"}}