{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:ISDBHIFTZ24N4YSEUPKCIGD3YL","short_pith_number":"pith:ISDBHIFT","canonical_record":{"source":{"id":"1801.05167","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-01-16T09:24:38Z","cross_cats_sorted":[],"title_canon_sha256":"3cbb9aee1865b1c9192b676a55d15498e956c57894d41cb8ca9137e2e3853e87","abstract_canon_sha256":"7d214c94721fe490f556352a9c86c12311e4707908a6862238b2f9f4c6e87db9"},"schema_version":"1.0"},"canonical_sha256":"448613a0b3ceb8de6244a3d424187bc2e882d3e01cec4304ce70e92ae1ffacd5","source":{"kind":"arxiv","id":"1801.05167","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.05167","created_at":"2026-05-18T00:14:08Z"},{"alias_kind":"arxiv_version","alias_value":"1801.05167v2","created_at":"2026-05-18T00:14:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.05167","created_at":"2026-05-18T00:14:08Z"},{"alias_kind":"pith_short_12","alias_value":"ISDBHIFTZ24N","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_16","alias_value":"ISDBHIFTZ24N4YSE","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_8","alias_value":"ISDBHIFT","created_at":"2026-05-18T12:32:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:ISDBHIFTZ24N4YSEUPKCIGD3YL","target":"record","payload":{"canonical_record":{"source":{"id":"1801.05167","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-01-16T09:24:38Z","cross_cats_sorted":[],"title_canon_sha256":"3cbb9aee1865b1c9192b676a55d15498e956c57894d41cb8ca9137e2e3853e87","abstract_canon_sha256":"7d214c94721fe490f556352a9c86c12311e4707908a6862238b2f9f4c6e87db9"},"schema_version":"1.0"},"canonical_sha256":"448613a0b3ceb8de6244a3d424187bc2e882d3e01cec4304ce70e92ae1ffacd5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:14:08.884356Z","signature_b64":"5Huje09RmtkBEAYXp9KNIA0xnhl9TqEqUeY7YOiIOrpwzY5CNH4VKmme1WbwucOgiBM0QigmJ7Wm5g43ntNUBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"448613a0b3ceb8de6244a3d424187bc2e882d3e01cec4304ce70e92ae1ffacd5","last_reissued_at":"2026-05-18T00:14:08.883882Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:14:08.883882Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1801.05167","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":"2026-05-18T00:14:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LTddkbgEzy9GE3Nr7bFot1/ayUKUdnYvB8NmtzF5R0n2LlzHObFP5iql5cK2aYovmURGTDLtBQ3+Sy3azLsCDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T14:09:59.549641Z"},"content_sha256":"944ee9e6842e704e8d7d5f00cd9129118aa5ba017de5a58fe0067003faa91209","schema_version":"1.0","event_id":"sha256:944ee9e6842e704e8d7d5f00cd9129118aa5ba017de5a58fe0067003faa91209"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:ISDBHIFTZ24N4YSEUPKCIGD3YL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Searching for Gamma-Ray counterparts to Gravitational Waves from merging binary neutron stars with the Cherenkov Telescope Array","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Antonio Stamerra, Barbara Patricelli, Elena Pian, Giancarlo Cella, Massimiliano Razzano","submitted_at":"2018-01-16T09:24:38Z","abstract_excerpt":"The merger of binary neutron star (BNS) systems are predicted to be progenitors of short gamma-ray bursts (GRBs); the definitive probe of this association came with the recent detection of gravitational waves (GWs) from a BNS merger by Advanced LIGO and Advanced Virgo (GW170817), in coincidence with the short GRB 170817A observed by Fermi-GBM and INTEGRAL. Short GRBs are also expected to emit very-high energy (VHE, > 100 GeV) photons and VHE electromagnetic (EM) upper limits have been set with observations performed by ground-based gamma-ray detectors and during the intense EM follow-up campai"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.05167","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":"2026-05-18T00:14:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9NMvN9993MmKQGjdcpE45f+V+cBNSzadf9BSJmzCU345kxYw6tcJSia7FTZBtrRXn+ePFwLsREOA8M3GmH9oAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T14:09:59.550337Z"},"content_sha256":"47d9502cfa159a309d6827054e746e0a270950c796ee8dde946e1e1b3ed2cd82","schema_version":"1.0","event_id":"sha256:47d9502cfa159a309d6827054e746e0a270950c796ee8dde946e1e1b3ed2cd82"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ISDBHIFTZ24N4YSEUPKCIGD3YL/bundle.json","state_url":"https://pith.science/pith/ISDBHIFTZ24N4YSEUPKCIGD3YL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ISDBHIFTZ24N4YSEUPKCIGD3YL/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":"2026-05-26T14:09:59Z","links":{"resolver":"https://pith.science/pith/ISDBHIFTZ24N4YSEUPKCIGD3YL","bundle":"https://pith.science/pith/ISDBHIFTZ24N4YSEUPKCIGD3YL/bundle.json","state":"https://pith.science/pith/ISDBHIFTZ24N4YSEUPKCIGD3YL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ISDBHIFTZ24N4YSEUPKCIGD3YL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:ISDBHIFTZ24N4YSEUPKCIGD3YL","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":"7d214c94721fe490f556352a9c86c12311e4707908a6862238b2f9f4c6e87db9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-01-16T09:24:38Z","title_canon_sha256":"3cbb9aee1865b1c9192b676a55d15498e956c57894d41cb8ca9137e2e3853e87"},"schema_version":"1.0","source":{"id":"1801.05167","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.05167","created_at":"2026-05-18T00:14:08Z"},{"alias_kind":"arxiv_version","alias_value":"1801.05167v2","created_at":"2026-05-18T00:14:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.05167","created_at":"2026-05-18T00:14:08Z"},{"alias_kind":"pith_short_12","alias_value":"ISDBHIFTZ24N","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_16","alias_value":"ISDBHIFTZ24N4YSE","created_at":"2026-05-18T12:32:31Z"},{"alias_kind":"pith_short_8","alias_value":"ISDBHIFT","created_at":"2026-05-18T12:32:31Z"}],"graph_snapshots":[{"event_id":"sha256:47d9502cfa159a309d6827054e746e0a270950c796ee8dde946e1e1b3ed2cd82","target":"graph","created_at":"2026-05-18T00:14:08Z","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":"The merger of binary neutron star (BNS) systems are predicted to be progenitors of short gamma-ray bursts (GRBs); the definitive probe of this association came with the recent detection of gravitational waves (GWs) from a BNS merger by Advanced LIGO and Advanced Virgo (GW170817), in coincidence with the short GRB 170817A observed by Fermi-GBM and INTEGRAL. Short GRBs are also expected to emit very-high energy (VHE, > 100 GeV) photons and VHE electromagnetic (EM) upper limits have been set with observations performed by ground-based gamma-ray detectors and during the intense EM follow-up campai","authors_text":"Antonio Stamerra, Barbara Patricelli, Elena Pian, Giancarlo Cella, Massimiliano Razzano","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-01-16T09:24:38Z","title":"Searching for Gamma-Ray counterparts to Gravitational Waves from merging binary neutron stars with the Cherenkov Telescope Array"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.05167","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":"sha256:944ee9e6842e704e8d7d5f00cd9129118aa5ba017de5a58fe0067003faa91209","target":"record","created_at":"2026-05-18T00:14:08Z","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":"7d214c94721fe490f556352a9c86c12311e4707908a6862238b2f9f4c6e87db9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-01-16T09:24:38Z","title_canon_sha256":"3cbb9aee1865b1c9192b676a55d15498e956c57894d41cb8ca9137e2e3853e87"},"schema_version":"1.0","source":{"id":"1801.05167","kind":"arxiv","version":2}},"canonical_sha256":"448613a0b3ceb8de6244a3d424187bc2e882d3e01cec4304ce70e92ae1ffacd5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"448613a0b3ceb8de6244a3d424187bc2e882d3e01cec4304ce70e92ae1ffacd5","first_computed_at":"2026-05-18T00:14:08.883882Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:14:08.883882Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5Huje09RmtkBEAYXp9KNIA0xnhl9TqEqUeY7YOiIOrpwzY5CNH4VKmme1WbwucOgiBM0QigmJ7Wm5g43ntNUBg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:14:08.884356Z","signed_message":"canonical_sha256_bytes"},"source_id":"1801.05167","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:944ee9e6842e704e8d7d5f00cd9129118aa5ba017de5a58fe0067003faa91209","sha256:47d9502cfa159a309d6827054e746e0a270950c796ee8dde946e1e1b3ed2cd82"],"state_sha256":"57d64b87230e6b9b41f4b0758dc9bbd34cd45886f83ce210cfd381184b940249"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UIpYkdiZVhoKpiVb+a8RRuNxPvJtantLPjTobC9M6UUVyVTQwfdlnE8oGOI37X5yFWYxV1key4BiVIEpTXS7DQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T14:09:59.553997Z","bundle_sha256":"37a4e15958c935ba6b83505c1b70af9737fc22187bfe14715732927e2693fb91"}}