{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:YBCHB6OVVV7QA6LHLORKKJVZ4C","short_pith_number":"pith:YBCHB6OV","canonical_record":{"source":{"id":"1112.5949","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2011-12-27T10:35:41Z","cross_cats_sorted":[],"title_canon_sha256":"60201a4c64c810288257517d6a6f90433bb271caa626d6cccda2cb94f742e46c","abstract_canon_sha256":"34322bc2a095971ce5af82813fdcac8bed6005308df41305b9798fc098f47600"},"schema_version":"1.0"},"canonical_sha256":"c04470f9d5ad7f0079675ba2a526b9e091ffda7a512c9dc5643ff8bb3f29ecfc","source":{"kind":"arxiv","id":"1112.5949","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1112.5949","created_at":"2026-05-18T04:05:37Z"},{"alias_kind":"arxiv_version","alias_value":"1112.5949v1","created_at":"2026-05-18T04:05:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1112.5949","created_at":"2026-05-18T04:05:37Z"},{"alias_kind":"pith_short_12","alias_value":"YBCHB6OVVV7Q","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_16","alias_value":"YBCHB6OVVV7QA6LH","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_8","alias_value":"YBCHB6OV","created_at":"2026-05-18T12:26:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:YBCHB6OVVV7QA6LHLORKKJVZ4C","target":"record","payload":{"canonical_record":{"source":{"id":"1112.5949","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2011-12-27T10:35:41Z","cross_cats_sorted":[],"title_canon_sha256":"60201a4c64c810288257517d6a6f90433bb271caa626d6cccda2cb94f742e46c","abstract_canon_sha256":"34322bc2a095971ce5af82813fdcac8bed6005308df41305b9798fc098f47600"},"schema_version":"1.0"},"canonical_sha256":"c04470f9d5ad7f0079675ba2a526b9e091ffda7a512c9dc5643ff8bb3f29ecfc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:05:37.205880Z","signature_b64":"Hvf+M4SiljtdSiwPODPO4yajypcnp1eYcDKXTP2GzCdYN/Bz6cxOngYvgkKwT653G0u3WPBCHZtxZ7wA3++cBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c04470f9d5ad7f0079675ba2a526b9e091ffda7a512c9dc5643ff8bb3f29ecfc","last_reissued_at":"2026-05-18T04:05:37.205131Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:05:37.205131Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1112.5949","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":"2026-05-18T04:05:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AjAKNBdYZDZK604D+N106u4d6Qg8z3vOx4jYpCOT46mi6Xi2+YjuEap/9QVjr0CcvpJ73vy8DoEwrgjdJ6XTBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T11:29:03.139769Z"},"content_sha256":"7d91cd07f5008754404a9a1052177b082be475a94fe17afd2cd2b018b0d589bf","schema_version":"1.0","event_id":"sha256:7d91cd07f5008754404a9a1052177b082be475a94fe17afd2cd2b018b0d589bf"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:YBCHB6OVVV7QA6LHLORKKJVZ4C","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"New insights on the duration distribution of long GRBs from Collapsars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Ehud Nakar, Omer Bromberg, Re'em Sari, Tsvi Piran","submitted_at":"2011-12-27T10:35:41Z","abstract_excerpt":"According the Collapsar model long gamma-ray bursts (LGRBs) involve relativistic jets that puncture the envelope of a collapsing star, and produced the \\gamma-rays after they break out. This model provides a theoretical framework for the well known association between LGRBs and massive stars. However although this association is supported by a wealth of observations, to this date there is no direct observational evidence for the emergence of the jet from the star. In other words there is no direct evidence for the Collapsar model. Here we show that a distinct signature of the Collapsar model i"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1112.5949","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":"2026-05-18T04:05:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QlYZVnoG8+e0E+AKQmEAJi9CSPwdMWQTIcaRObHNAm2PHoPqQOh5hpBFdG46uVnOawznKoGfVYC6DqJTERVCBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T11:29:03.140480Z"},"content_sha256":"ae6246603123dd9badd9f5ace69cd5652bc7a76a43d37d6480414a213d759c0c","schema_version":"1.0","event_id":"sha256:ae6246603123dd9badd9f5ace69cd5652bc7a76a43d37d6480414a213d759c0c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YBCHB6OVVV7QA6LHLORKKJVZ4C/bundle.json","state_url":"https://pith.science/pith/YBCHB6OVVV7QA6LHLORKKJVZ4C/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YBCHB6OVVV7QA6LHLORKKJVZ4C/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":"2026-05-27T11:29:03Z","links":{"resolver":"https://pith.science/pith/YBCHB6OVVV7QA6LHLORKKJVZ4C","bundle":"https://pith.science/pith/YBCHB6OVVV7QA6LHLORKKJVZ4C/bundle.json","state":"https://pith.science/pith/YBCHB6OVVV7QA6LHLORKKJVZ4C/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YBCHB6OVVV7QA6LHLORKKJVZ4C/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:YBCHB6OVVV7QA6LHLORKKJVZ4C","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":"34322bc2a095971ce5af82813fdcac8bed6005308df41305b9798fc098f47600","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2011-12-27T10:35:41Z","title_canon_sha256":"60201a4c64c810288257517d6a6f90433bb271caa626d6cccda2cb94f742e46c"},"schema_version":"1.0","source":{"id":"1112.5949","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1112.5949","created_at":"2026-05-18T04:05:37Z"},{"alias_kind":"arxiv_version","alias_value":"1112.5949v1","created_at":"2026-05-18T04:05:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1112.5949","created_at":"2026-05-18T04:05:37Z"},{"alias_kind":"pith_short_12","alias_value":"YBCHB6OVVV7Q","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_16","alias_value":"YBCHB6OVVV7QA6LH","created_at":"2026-05-18T12:26:47Z"},{"alias_kind":"pith_short_8","alias_value":"YBCHB6OV","created_at":"2026-05-18T12:26:47Z"}],"graph_snapshots":[{"event_id":"sha256:ae6246603123dd9badd9f5ace69cd5652bc7a76a43d37d6480414a213d759c0c","target":"graph","created_at":"2026-05-18T04:05:37Z","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":"According the Collapsar model long gamma-ray bursts (LGRBs) involve relativistic jets that puncture the envelope of a collapsing star, and produced the \\gamma-rays after they break out. This model provides a theoretical framework for the well known association between LGRBs and massive stars. However although this association is supported by a wealth of observations, to this date there is no direct observational evidence for the emergence of the jet from the star. In other words there is no direct evidence for the Collapsar model. Here we show that a distinct signature of the Collapsar model i","authors_text":"Ehud Nakar, Omer Bromberg, Re'em Sari, Tsvi Piran","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2011-12-27T10:35:41Z","title":"New insights on the duration distribution of long GRBs from Collapsars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1112.5949","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":"sha256:7d91cd07f5008754404a9a1052177b082be475a94fe17afd2cd2b018b0d589bf","target":"record","created_at":"2026-05-18T04:05:37Z","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":"34322bc2a095971ce5af82813fdcac8bed6005308df41305b9798fc098f47600","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2011-12-27T10:35:41Z","title_canon_sha256":"60201a4c64c810288257517d6a6f90433bb271caa626d6cccda2cb94f742e46c"},"schema_version":"1.0","source":{"id":"1112.5949","kind":"arxiv","version":1}},"canonical_sha256":"c04470f9d5ad7f0079675ba2a526b9e091ffda7a512c9dc5643ff8bb3f29ecfc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c04470f9d5ad7f0079675ba2a526b9e091ffda7a512c9dc5643ff8bb3f29ecfc","first_computed_at":"2026-05-18T04:05:37.205131Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:05:37.205131Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Hvf+M4SiljtdSiwPODPO4yajypcnp1eYcDKXTP2GzCdYN/Bz6cxOngYvgkKwT653G0u3WPBCHZtxZ7wA3++cBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:05:37.205880Z","signed_message":"canonical_sha256_bytes"},"source_id":"1112.5949","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7d91cd07f5008754404a9a1052177b082be475a94fe17afd2cd2b018b0d589bf","sha256:ae6246603123dd9badd9f5ace69cd5652bc7a76a43d37d6480414a213d759c0c"],"state_sha256":"c46c90083c135ff42d94cea9b5299c546b66a684b37a013ac10ded700c34de24"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gFccuU6yofmhvf28gGKa3si3/xmW8lUcJVwYIDWN2Qsh/T9JVNX7YqsUS+0hH7CnaaYLe895nFTxSybSJdSoBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T11:29:03.144428Z","bundle_sha256":"10e29744aafa8aba42d574682726546420573b8988f1a49c29e7d9ae545e66f8"}}