{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2001:BMNM36YDLMXLRGH7QUWMVVREAP","short_pith_number":"pith:BMNM36YD","canonical_record":{"source":{"id":"astro-ph/0106196","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2001-06-12T11:54:30Z","cross_cats_sorted":[],"title_canon_sha256":"18db491bb58dc7494823e65ea902e9bfd86836092c724d0d3b3e1ff70ad22bb1","abstract_canon_sha256":"f3a6d63afe79a01bc956e5a76d89a1156d291eb91bf26315999726f5f3f8ea64"},"schema_version":"1.0"},"canonical_sha256":"0b1acdfb035b2eb898ff852ccad62403f51ebd0688695279336b3ac8d1a96346","source":{"kind":"arxiv","id":"astro-ph/0106196","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0106196","created_at":"2026-05-18T02:40:36Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0106196v1","created_at":"2026-05-18T02:40:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0106196","created_at":"2026-05-18T02:40:36Z"},{"alias_kind":"pith_short_12","alias_value":"BMNM36YDLMXL","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"BMNM36YDLMXLRGH7","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"BMNM36YD","created_at":"2026-05-18T12:25:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2001:BMNM36YDLMXLRGH7QUWMVVREAP","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0106196","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2001-06-12T11:54:30Z","cross_cats_sorted":[],"title_canon_sha256":"18db491bb58dc7494823e65ea902e9bfd86836092c724d0d3b3e1ff70ad22bb1","abstract_canon_sha256":"f3a6d63afe79a01bc956e5a76d89a1156d291eb91bf26315999726f5f3f8ea64"},"schema_version":"1.0"},"canonical_sha256":"0b1acdfb035b2eb898ff852ccad62403f51ebd0688695279336b3ac8d1a96346","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:40:36.243227Z","signature_b64":"5RRnWFJXjCbjMNcqsZYeWPJf3W6/OMSsAkZ+Kq8SKSQ4/xacYQuHKdlcw5HX0gvl0N3uuEZytZJMvcsefkWKDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0b1acdfb035b2eb898ff852ccad62403f51ebd0688695279336b3ac8d1a96346","last_reissued_at":"2026-05-18T02:40:36.242703Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:40:36.242703Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0106196","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":"2026-05-18T02:40:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cYd8MOV6FmPpyc1eWgkJKUSnkYyFVNNIclNlFJEH0iPm1dZYJ2GI2ViEW6WpgJE9mMqf7fsp0USZmSqD+ENYCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T14:23:18.974440Z"},"content_sha256":"85ca3de7050428b08cfd70ff2c7f7e2b7f295d13f68fb8d046b58c7a5944883a","schema_version":"1.0","event_id":"sha256:85ca3de7050428b08cfd70ff2c7f7e2b7f295d13f68fb8d046b58c7a5944883a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2001:BMNM36YDLMXLRGH7QUWMVVREAP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Temporal and spectral gamma-ray properties of Mkn421 above 250 GeV from CAT observations between 1996 and 2000","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Barrau, A. Djannati-Atai, B. Degrange, B. Fabre, B. Khelifi, C. Gouiffes, C. Masterson, C. Renault, E. Nuss, F. Piron, G. Debiais, G. Fontaine, G. Mohanty, I. Malet, J.-P. Dezalay, J.-P. Tavernet, L.-M. Chounet, L. Rob, M. Punch, M. Rivoal, P. Espigat, P. Fleury, P. Goret, R. Bazer-Bachi, S. Vorobiov","submitted_at":"2001-06-12T11:54:30Z","abstract_excerpt":"The gamma-ray emission above 250 GeV from the BL Lac object Markarian 421 was observed by the CAT Cherenkov imaging telescope between December, 1996, and June, 2000. In 1998, the source produced a series of small flares, making it the second extragalactic source detected by CAT. The time-averaged differential spectrum has been measured from 0.3 to 5 TeV, which is well fitted with a power law with an index of -2.88+-0.12(stat)+-0.06(syst). In 2000, the source showed an unprecedented activity, with variability time-scales as short as one hour, as for instance observed during the night between 4 "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0106196","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":"2026-05-18T02:40:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EWM321/sK3ra4Cx0+Iahp9dcUPz/28kzXBEx+HGn3HQGL0y1F8+mKAVOc8fmf4KXcWvgAGq8K86daK3fg85mAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T14:23:18.974796Z"},"content_sha256":"1e9826d124bce58cd7c1d5fe4fb6c17198d092e2c9666ab63b3b8e9150505a53","schema_version":"1.0","event_id":"sha256:1e9826d124bce58cd7c1d5fe4fb6c17198d092e2c9666ab63b3b8e9150505a53"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BMNM36YDLMXLRGH7QUWMVVREAP/bundle.json","state_url":"https://pith.science/pith/BMNM36YDLMXLRGH7QUWMVVREAP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BMNM36YDLMXLRGH7QUWMVVREAP/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":"2026-06-09T14:23:18Z","links":{"resolver":"https://pith.science/pith/BMNM36YDLMXLRGH7QUWMVVREAP","bundle":"https://pith.science/pith/BMNM36YDLMXLRGH7QUWMVVREAP/bundle.json","state":"https://pith.science/pith/BMNM36YDLMXLRGH7QUWMVVREAP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BMNM36YDLMXLRGH7QUWMVVREAP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2001:BMNM36YDLMXLRGH7QUWMVVREAP","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":"f3a6d63afe79a01bc956e5a76d89a1156d291eb91bf26315999726f5f3f8ea64","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2001-06-12T11:54:30Z","title_canon_sha256":"18db491bb58dc7494823e65ea902e9bfd86836092c724d0d3b3e1ff70ad22bb1"},"schema_version":"1.0","source":{"id":"astro-ph/0106196","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0106196","created_at":"2026-05-18T02:40:36Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0106196v1","created_at":"2026-05-18T02:40:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0106196","created_at":"2026-05-18T02:40:36Z"},{"alias_kind":"pith_short_12","alias_value":"BMNM36YDLMXL","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"BMNM36YDLMXLRGH7","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"BMNM36YD","created_at":"2026-05-18T12:25:50Z"}],"graph_snapshots":[{"event_id":"sha256:1e9826d124bce58cd7c1d5fe4fb6c17198d092e2c9666ab63b3b8e9150505a53","target":"graph","created_at":"2026-05-18T02:40:36Z","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 gamma-ray emission above 250 GeV from the BL Lac object Markarian 421 was observed by the CAT Cherenkov imaging telescope between December, 1996, and June, 2000. In 1998, the source produced a series of small flares, making it the second extragalactic source detected by CAT. The time-averaged differential spectrum has been measured from 0.3 to 5 TeV, which is well fitted with a power law with an index of -2.88+-0.12(stat)+-0.06(syst). In 2000, the source showed an unprecedented activity, with variability time-scales as short as one hour, as for instance observed during the night between 4 ","authors_text":"A. Barrau, A. Djannati-Atai, B. Degrange, B. Fabre, B. Khelifi, C. Gouiffes, C. Masterson, C. Renault, E. Nuss, F. Piron, G. Debiais, G. Fontaine, G. Mohanty, I. Malet, J.-P. Dezalay, J.-P. Tavernet, L.-M. Chounet, L. Rob, M. Punch, M. Rivoal, P. Espigat, P. Fleury, P. Goret, R. Bazer-Bachi, S. Vorobiov","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2001-06-12T11:54:30Z","title":"Temporal and spectral gamma-ray properties of Mkn421 above 250 GeV from CAT observations between 1996 and 2000"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0106196","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":"sha256:85ca3de7050428b08cfd70ff2c7f7e2b7f295d13f68fb8d046b58c7a5944883a","target":"record","created_at":"2026-05-18T02:40:36Z","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":"f3a6d63afe79a01bc956e5a76d89a1156d291eb91bf26315999726f5f3f8ea64","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2001-06-12T11:54:30Z","title_canon_sha256":"18db491bb58dc7494823e65ea902e9bfd86836092c724d0d3b3e1ff70ad22bb1"},"schema_version":"1.0","source":{"id":"astro-ph/0106196","kind":"arxiv","version":1}},"canonical_sha256":"0b1acdfb035b2eb898ff852ccad62403f51ebd0688695279336b3ac8d1a96346","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0b1acdfb035b2eb898ff852ccad62403f51ebd0688695279336b3ac8d1a96346","first_computed_at":"2026-05-18T02:40:36.242703Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:40:36.242703Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5RRnWFJXjCbjMNcqsZYeWPJf3W6/OMSsAkZ+Kq8SKSQ4/xacYQuHKdlcw5HX0gvl0N3uuEZytZJMvcsefkWKDw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:40:36.243227Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0106196","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:85ca3de7050428b08cfd70ff2c7f7e2b7f295d13f68fb8d046b58c7a5944883a","sha256:1e9826d124bce58cd7c1d5fe4fb6c17198d092e2c9666ab63b3b8e9150505a53"],"state_sha256":"4d0cb1f637346477315abdba2d8681a2fc53a4360075be73d822cd13cf4cedd8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8DO2aOM0/MjxSmnPZeGM3XG3Lvcm2PBU50jH+13AuUD/LqTkkq9lQyTbWubcEXH2NsTr/h3tHOrE8Hk6tIeUCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-09T14:23:18.976758Z","bundle_sha256":"8d5e74d94da72e3de165002939ba7919153f58a7d557ed29103f35f471fa2970"}}