{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:4L3IKJCWPX6RO5LZG4C2Q427RK","short_pith_number":"pith:4L3IKJCW","canonical_record":{"source":{"id":"1108.2307","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-08-10T23:46:38Z","cross_cats_sorted":[],"title_canon_sha256":"1e9dbb9606334d3ab6aad143aeefaadf464af73891d7cad958b1fa3288b3f7b9","abstract_canon_sha256":"5d3fbd6aaab48df9f4721f62169a2023705a865c6cc0a54df944bf5b96cfe9a5"},"schema_version":"1.0"},"canonical_sha256":"e2f68524567dfd1775793705a8735f8ab9dd2af531171d0d7d5ed5280ad30ed2","source":{"kind":"arxiv","id":"1108.2307","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1108.2307","created_at":"2026-05-18T02:00:55Z"},{"alias_kind":"arxiv_version","alias_value":"1108.2307v1","created_at":"2026-05-18T02:00:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1108.2307","created_at":"2026-05-18T02:00:55Z"},{"alias_kind":"pith_short_12","alias_value":"4L3IKJCWPX6R","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_16","alias_value":"4L3IKJCWPX6RO5LZ","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_8","alias_value":"4L3IKJCW","created_at":"2026-05-18T12:26:20Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:4L3IKJCWPX6RO5LZG4C2Q427RK","target":"record","payload":{"canonical_record":{"source":{"id":"1108.2307","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-08-10T23:46:38Z","cross_cats_sorted":[],"title_canon_sha256":"1e9dbb9606334d3ab6aad143aeefaadf464af73891d7cad958b1fa3288b3f7b9","abstract_canon_sha256":"5d3fbd6aaab48df9f4721f62169a2023705a865c6cc0a54df944bf5b96cfe9a5"},"schema_version":"1.0"},"canonical_sha256":"e2f68524567dfd1775793705a8735f8ab9dd2af531171d0d7d5ed5280ad30ed2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:00:55.415311Z","signature_b64":"g2568fKD1Vvyxhe47yRHr+/CuZ9GUlrdQotxYoEXUb0DNX+AVBSlLpGNiyw8t7Pej45ry9XcvnEP/dpNJ3r7AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e2f68524567dfd1775793705a8735f8ab9dd2af531171d0d7d5ed5280ad30ed2","last_reissued_at":"2026-05-18T02:00:55.414606Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:00:55.414606Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1108.2307","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":"2026-05-18T02:00:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"be9i1LCVNkNezfpBwVhrhqXpJf1Ccw2QtwuKWhik+d39m6f1kOe/Qha4xdq+c+Ug308M6W6F0W/o9ML1Gbe0AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T18:29:00.549216Z"},"content_sha256":"be70f9949866a3812a5ee0bcc26b581964ca0353b9aba0666b7b7c3d5c5dad1a","schema_version":"1.0","event_id":"sha256:be70f9949866a3812a5ee0bcc26b581964ca0353b9aba0666b7b7c3d5c5dad1a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:4L3IKJCWPX6RO5LZG4C2Q427RK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Statistical Studies of Giant Pulse Emission from the Crab Pulsar","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Charles J. Naudet, Stephen T. Lowe, Thomas B. H. Kuiper, Walid A. Majid","submitted_at":"2011-08-10T23:46:38Z","abstract_excerpt":"We have observed the Crab pulsar with the Deep Space Network (DSN) Goldstone 70 m antenna at 1664 MHz during three observing epochs for a total of 4 hours. Our data analysis has detected more than 2500 giant pulses, with flux densities ranging from 0.1 kJy to 150 kJy and pulse widths from 125 ns (limited by our bandwidth) to as long as 100 microseconds, with median power amplitudes and widths of 1 kJy and 2 microseconds respectively. The most energetic pulses in our sample have energy fluxes of approximately 100 kJy-microsecond. We have used this large sample to investigate a number of giant-p"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.2307","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":"2026-05-18T02:00:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wdqcTlMpIR1mN4BMlFBe+6CqgElUMhXZyTL0hrcEw6vpZ2UgpZqcTN/ooEmdLkvse518qKHFFQ2p9LLAUu7SAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T18:29:00.549917Z"},"content_sha256":"42390b576d7304d7a8c82e030b052d0815b15bb02a79a47ad4e5bd3f142734a3","schema_version":"1.0","event_id":"sha256:42390b576d7304d7a8c82e030b052d0815b15bb02a79a47ad4e5bd3f142734a3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4L3IKJCWPX6RO5LZG4C2Q427RK/bundle.json","state_url":"https://pith.science/pith/4L3IKJCWPX6RO5LZG4C2Q427RK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4L3IKJCWPX6RO5LZG4C2Q427RK/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":"2026-05-25T18:29:00Z","links":{"resolver":"https://pith.science/pith/4L3IKJCWPX6RO5LZG4C2Q427RK","bundle":"https://pith.science/pith/4L3IKJCWPX6RO5LZG4C2Q427RK/bundle.json","state":"https://pith.science/pith/4L3IKJCWPX6RO5LZG4C2Q427RK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4L3IKJCWPX6RO5LZG4C2Q427RK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:4L3IKJCWPX6RO5LZG4C2Q427RK","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":"5d3fbd6aaab48df9f4721f62169a2023705a865c6cc0a54df944bf5b96cfe9a5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-08-10T23:46:38Z","title_canon_sha256":"1e9dbb9606334d3ab6aad143aeefaadf464af73891d7cad958b1fa3288b3f7b9"},"schema_version":"1.0","source":{"id":"1108.2307","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1108.2307","created_at":"2026-05-18T02:00:55Z"},{"alias_kind":"arxiv_version","alias_value":"1108.2307v1","created_at":"2026-05-18T02:00:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1108.2307","created_at":"2026-05-18T02:00:55Z"},{"alias_kind":"pith_short_12","alias_value":"4L3IKJCWPX6R","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_16","alias_value":"4L3IKJCWPX6RO5LZ","created_at":"2026-05-18T12:26:20Z"},{"alias_kind":"pith_short_8","alias_value":"4L3IKJCW","created_at":"2026-05-18T12:26:20Z"}],"graph_snapshots":[{"event_id":"sha256:42390b576d7304d7a8c82e030b052d0815b15bb02a79a47ad4e5bd3f142734a3","target":"graph","created_at":"2026-05-18T02:00:55Z","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 have observed the Crab pulsar with the Deep Space Network (DSN) Goldstone 70 m antenna at 1664 MHz during three observing epochs for a total of 4 hours. Our data analysis has detected more than 2500 giant pulses, with flux densities ranging from 0.1 kJy to 150 kJy and pulse widths from 125 ns (limited by our bandwidth) to as long as 100 microseconds, with median power amplitudes and widths of 1 kJy and 2 microseconds respectively. The most energetic pulses in our sample have energy fluxes of approximately 100 kJy-microsecond. We have used this large sample to investigate a number of giant-p","authors_text":"Charles J. Naudet, Stephen T. Lowe, Thomas B. H. Kuiper, Walid A. Majid","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-08-10T23:46:38Z","title":"Statistical Studies of Giant Pulse Emission from the Crab Pulsar"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.2307","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:be70f9949866a3812a5ee0bcc26b581964ca0353b9aba0666b7b7c3d5c5dad1a","target":"record","created_at":"2026-05-18T02:00:55Z","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":"5d3fbd6aaab48df9f4721f62169a2023705a865c6cc0a54df944bf5b96cfe9a5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-08-10T23:46:38Z","title_canon_sha256":"1e9dbb9606334d3ab6aad143aeefaadf464af73891d7cad958b1fa3288b3f7b9"},"schema_version":"1.0","source":{"id":"1108.2307","kind":"arxiv","version":1}},"canonical_sha256":"e2f68524567dfd1775793705a8735f8ab9dd2af531171d0d7d5ed5280ad30ed2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e2f68524567dfd1775793705a8735f8ab9dd2af531171d0d7d5ed5280ad30ed2","first_computed_at":"2026-05-18T02:00:55.414606Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:00:55.414606Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"g2568fKD1Vvyxhe47yRHr+/CuZ9GUlrdQotxYoEXUb0DNX+AVBSlLpGNiyw8t7Pej45ry9XcvnEP/dpNJ3r7AA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:00:55.415311Z","signed_message":"canonical_sha256_bytes"},"source_id":"1108.2307","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:be70f9949866a3812a5ee0bcc26b581964ca0353b9aba0666b7b7c3d5c5dad1a","sha256:42390b576d7304d7a8c82e030b052d0815b15bb02a79a47ad4e5bd3f142734a3"],"state_sha256":"00ec0a4a3354ad580cae4875c152c60ab51ab0df05ed30176e09a3a2e352affe"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zwb8Smp9b73jM30s1zTSd8u5S57boYPqcIYXI2JYGPgjiRFh50fdsslQDmY5rGtIlKavh632iBoBV2Zyn7XSCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T18:29:00.553571Z","bundle_sha256":"19567c3913a57578ea01d039b0347651ed887f78770271051e133dcf4ba1ea55"}}