{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:QAMMPXS3RYKUVTWYFOXATK6RVW","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":"96604d8eb93cd85434903bb4a09374b27cb631735fb85fbd41e54adbf3d0075e","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2011-03-10T02:44:12Z","title_canon_sha256":"bf1db2686520f7d9a1568e359de65c53970b55d1b54b95a3be63e51c577d94ec"},"schema_version":"1.0","source":{"id":"1103.1929","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1103.1929","created_at":"2026-05-18T04:23:12Z"},{"alias_kind":"arxiv_version","alias_value":"1103.1929v2","created_at":"2026-05-18T04:23:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1103.1929","created_at":"2026-05-18T04:23:12Z"},{"alias_kind":"pith_short_12","alias_value":"QAMMPXS3RYKU","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"QAMMPXS3RYKUVTWY","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"QAMMPXS3","created_at":"2026-05-18T12:26:39Z"}],"graph_snapshots":[{"event_id":"sha256:4c774e9c09c35f6d6c936dabdfcaeaa62ca130c0f74de1dfb7016170e7ca9ddf","target":"graph","created_at":"2026-05-18T04:23:12Z","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":"Using energy conservation we show that if a sudden external force of unknown nature causes a newborn pulsar of mass $M=1.4 M_\\odot$ and radius R=10 km to have the acceleration $a_0$ then we can derive the relation $a_0\\simeq k^{-1}vB_0^{-2/3},$ where $v$ is the velocity of the pulsar, $B_0$ its initial magnetic field and $k\\approx 10^{-17}$G$^{-2/3}$s. This relation predicts that a newborn pulsar with $v=450$ km experienced the acceleration $a_0\\simeq10^{13}$g when $B_0\\simeq10^{13}$G. An external force producing such an acceleration seems not to be physically feasible. This pulsar could have ","authors_text":"Ricardo Heras","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2011-03-10T02:44:12Z","title":"Initial accelerations of pulsars caused by external kicks"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1103.1929","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:b61710603abcb6c2e6482747d478250383ba4cde63bb46cf5c39383adc6cc426","target":"record","created_at":"2026-05-18T04:23:12Z","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":"96604d8eb93cd85434903bb4a09374b27cb631735fb85fbd41e54adbf3d0075e","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2011-03-10T02:44:12Z","title_canon_sha256":"bf1db2686520f7d9a1568e359de65c53970b55d1b54b95a3be63e51c577d94ec"},"schema_version":"1.0","source":{"id":"1103.1929","kind":"arxiv","version":2}},"canonical_sha256":"8018c7de5b8e154aced82bae09abd1adbe4a1aa98bea1cb8f0f5b937cdc5e5d4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8018c7de5b8e154aced82bae09abd1adbe4a1aa98bea1cb8f0f5b937cdc5e5d4","first_computed_at":"2026-05-18T04:23:12.837834Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:23:12.837834Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xzqVTn9KhDHqwRpwnVvC3SYH6GJ2tu/R553yxwcS/TFJ8vREx6tjlaqy/fdc+oHaTxkeUrlBCzw1+9C2ehH7CA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:23:12.838367Z","signed_message":"canonical_sha256_bytes"},"source_id":"1103.1929","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b61710603abcb6c2e6482747d478250383ba4cde63bb46cf5c39383adc6cc426","sha256:4c774e9c09c35f6d6c936dabdfcaeaa62ca130c0f74de1dfb7016170e7ca9ddf"],"state_sha256":"e1001423f418bf7c9d9483c3b80406a796d1c9a025fa9514e86f68bc707916f3"}