{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:2ENR7IMCKZEOBJU2C6RRPVZRZS","short_pith_number":"pith:2ENR7IMC","canonical_record":{"source":{"id":"1711.00473","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-11-01T18:00:02Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"53c654f8409eb734a44fb65334eb8b77a03c70c3179fb1685c94ace37921529a","abstract_canon_sha256":"d0028ad1175cf3c0f164be1ac93dcf145b8e114db1fcb4c78e0f6b4114c1f907"},"schema_version":"1.0"},"canonical_sha256":"d11b1fa1825648e0a69a17a317d731ccb903303eaa5c591caf18f128601eb9d7","source":{"kind":"arxiv","id":"1711.00473","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1711.00473","created_at":"2026-05-18T00:16:44Z"},{"alias_kind":"arxiv_version","alias_value":"1711.00473v3","created_at":"2026-05-18T00:16:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1711.00473","created_at":"2026-05-18T00:16:44Z"},{"alias_kind":"pith_short_12","alias_value":"2ENR7IMCKZEO","created_at":"2026-05-18T12:30:55Z"},{"alias_kind":"pith_short_16","alias_value":"2ENR7IMCKZEOBJU2","created_at":"2026-05-18T12:30:55Z"},{"alias_kind":"pith_short_8","alias_value":"2ENR7IMC","created_at":"2026-05-18T12:30:55Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:2ENR7IMCKZEOBJU2C6RRPVZRZS","target":"record","payload":{"canonical_record":{"source":{"id":"1711.00473","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-11-01T18:00:02Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"53c654f8409eb734a44fb65334eb8b77a03c70c3179fb1685c94ace37921529a","abstract_canon_sha256":"d0028ad1175cf3c0f164be1ac93dcf145b8e114db1fcb4c78e0f6b4114c1f907"},"schema_version":"1.0"},"canonical_sha256":"d11b1fa1825648e0a69a17a317d731ccb903303eaa5c591caf18f128601eb9d7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:16:44.719994Z","signature_b64":"tuwCEa3uclr0NzLL/nWV8SuDykA7I9OuGa+DmA2cATa77bPCdMQbOjFrdox0Hc6QZi+3wpuD7OYHjlxzEzmQAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d11b1fa1825648e0a69a17a317d731ccb903303eaa5c591caf18f128601eb9d7","last_reissued_at":"2026-05-18T00:16:44.719345Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:16:44.719345Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1711.00473","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":"2026-05-18T00:16:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cqHEmEFu6ZCGDr9g1SXMDiIKju4tMYkwxHJTxuXkcZj8+jiQYa+AvX7pnVjVb3Ep2RviFgmFwBzx76cSvi9BAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T18:14:33.240963Z"},"content_sha256":"0307cd2697cfa41c6b0f2f7dbbb2fd8699674e4629f29e0926d1942ff91c09c5","schema_version":"1.0","event_id":"sha256:0307cd2697cfa41c6b0f2f7dbbb2fd8699674e4629f29e0926d1942ff91c09c5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:2ENR7IMCKZEOBJU2C6RRPVZRZS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"GW170817, General Relativistic Magnetohydrodynamic Simulations, and the Neutron Star Maximum Mass","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"astro-ph.HE","authors_text":"Antonios Tsokaros, Milton Ruiz, Stuart L. Shapiro","submitted_at":"2017-11-01T18:00:02Z","abstract_excerpt":"Recent numerical simulations in general relativistic magnetohydrodynamics (GRMHD) provide useful constraints for the interpretation of the GW170817 discovery. Combining the observed data with these simulations leads to a bound on the maximum mass of a cold, spherical neutron star (the TOV limit): ${M_{\\rm max}^{\\rm sph}}\\lesssim 2.74/\\beta$, where $\\beta$ is the ratio of the maximum mass of a uniformly rotating neutron star (the supramassive limit) over the maximum mass of a nonrotating star. Causality arguments allow $\\beta$ to be as high as $1.27$, while most realistic candidate equations of"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.00473","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":""},"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":"2026-05-18T00:16:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"x6ih+aa4p2CNf47OM5sCG+lvK44S9w8OrSMoSkA7qStbD4SXUNoJp+7TNllf7l3KZOcXUaPy0E8z8HoDjMoZCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T18:14:33.241333Z"},"content_sha256":"d5aebc0bd34e553fe06200caa72d4db16481576f936e5fe14772074da0e07934","schema_version":"1.0","event_id":"sha256:d5aebc0bd34e553fe06200caa72d4db16481576f936e5fe14772074da0e07934"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2ENR7IMCKZEOBJU2C6RRPVZRZS/bundle.json","state_url":"https://pith.science/pith/2ENR7IMCKZEOBJU2C6RRPVZRZS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2ENR7IMCKZEOBJU2C6RRPVZRZS/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":"2026-05-28T18:14:33Z","links":{"resolver":"https://pith.science/pith/2ENR7IMCKZEOBJU2C6RRPVZRZS","bundle":"https://pith.science/pith/2ENR7IMCKZEOBJU2C6RRPVZRZS/bundle.json","state":"https://pith.science/pith/2ENR7IMCKZEOBJU2C6RRPVZRZS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2ENR7IMCKZEOBJU2C6RRPVZRZS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:2ENR7IMCKZEOBJU2C6RRPVZRZS","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":"d0028ad1175cf3c0f164be1ac93dcf145b8e114db1fcb4c78e0f6b4114c1f907","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-11-01T18:00:02Z","title_canon_sha256":"53c654f8409eb734a44fb65334eb8b77a03c70c3179fb1685c94ace37921529a"},"schema_version":"1.0","source":{"id":"1711.00473","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1711.00473","created_at":"2026-05-18T00:16:44Z"},{"alias_kind":"arxiv_version","alias_value":"1711.00473v3","created_at":"2026-05-18T00:16:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1711.00473","created_at":"2026-05-18T00:16:44Z"},{"alias_kind":"pith_short_12","alias_value":"2ENR7IMCKZEO","created_at":"2026-05-18T12:30:55Z"},{"alias_kind":"pith_short_16","alias_value":"2ENR7IMCKZEOBJU2","created_at":"2026-05-18T12:30:55Z"},{"alias_kind":"pith_short_8","alias_value":"2ENR7IMC","created_at":"2026-05-18T12:30:55Z"}],"graph_snapshots":[{"event_id":"sha256:d5aebc0bd34e553fe06200caa72d4db16481576f936e5fe14772074da0e07934","target":"graph","created_at":"2026-05-18T00:16:44Z","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":"Recent numerical simulations in general relativistic magnetohydrodynamics (GRMHD) provide useful constraints for the interpretation of the GW170817 discovery. Combining the observed data with these simulations leads to a bound on the maximum mass of a cold, spherical neutron star (the TOV limit): ${M_{\\rm max}^{\\rm sph}}\\lesssim 2.74/\\beta$, where $\\beta$ is the ratio of the maximum mass of a uniformly rotating neutron star (the supramassive limit) over the maximum mass of a nonrotating star. Causality arguments allow $\\beta$ to be as high as $1.27$, while most realistic candidate equations of","authors_text":"Antonios Tsokaros, Milton Ruiz, Stuart L. Shapiro","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-11-01T18:00:02Z","title":"GW170817, General Relativistic Magnetohydrodynamic Simulations, and the Neutron Star Maximum Mass"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.00473","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":"sha256:0307cd2697cfa41c6b0f2f7dbbb2fd8699674e4629f29e0926d1942ff91c09c5","target":"record","created_at":"2026-05-18T00:16:44Z","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":"d0028ad1175cf3c0f164be1ac93dcf145b8e114db1fcb4c78e0f6b4114c1f907","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-11-01T18:00:02Z","title_canon_sha256":"53c654f8409eb734a44fb65334eb8b77a03c70c3179fb1685c94ace37921529a"},"schema_version":"1.0","source":{"id":"1711.00473","kind":"arxiv","version":3}},"canonical_sha256":"d11b1fa1825648e0a69a17a317d731ccb903303eaa5c591caf18f128601eb9d7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d11b1fa1825648e0a69a17a317d731ccb903303eaa5c591caf18f128601eb9d7","first_computed_at":"2026-05-18T00:16:44.719345Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:16:44.719345Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tuwCEa3uclr0NzLL/nWV8SuDykA7I9OuGa+DmA2cATa77bPCdMQbOjFrdox0Hc6QZi+3wpuD7OYHjlxzEzmQAA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:16:44.719994Z","signed_message":"canonical_sha256_bytes"},"source_id":"1711.00473","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0307cd2697cfa41c6b0f2f7dbbb2fd8699674e4629f29e0926d1942ff91c09c5","sha256:d5aebc0bd34e553fe06200caa72d4db16481576f936e5fe14772074da0e07934"],"state_sha256":"204bfc6496f72bbde97552476dadb67a092587ae422d294fc25be15c6a81213b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"p3oHeaVil4uQp/5lpUR0El+JjlG0g9U4H+SCXCxoc9JkWHIY075i5XD5CQkToEYSW/JHsa51F0M2SuuQaQPLDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T18:14:33.243448Z","bundle_sha256":"7b18ce94b030f76c067be5f0f421fec3cd5522e05d5343030f764a59160f0c13"}}