{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:2HAGMLXRD7VWHK5CB4GXT6VPTK","short_pith_number":"pith:2HAGMLXR","canonical_record":{"source":{"id":"1502.01529","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-02-05T13:16:58Z","cross_cats_sorted":[],"title_canon_sha256":"3789fbd8ef62478a34e62df03cf5b56d749ef4fd4c21619b145615481b9600a0","abstract_canon_sha256":"5773059a3dc0a15cc24349d48bed72fc6866c426391bce31267eb409ace5ea10"},"schema_version":"1.0"},"canonical_sha256":"d1c0662ef11feb63aba20f0d79faaf9aa493df52f7d7c3031c8c84888bc62364","source":{"kind":"arxiv","id":"1502.01529","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.01529","created_at":"2026-05-18T02:20:30Z"},{"alias_kind":"arxiv_version","alias_value":"1502.01529v2","created_at":"2026-05-18T02:20:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.01529","created_at":"2026-05-18T02:20:30Z"},{"alias_kind":"pith_short_12","alias_value":"2HAGMLXRD7VW","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_16","alias_value":"2HAGMLXRD7VWHK5C","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_8","alias_value":"2HAGMLXR","created_at":"2026-05-18T12:28:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:2HAGMLXRD7VWHK5CB4GXT6VPTK","target":"record","payload":{"canonical_record":{"source":{"id":"1502.01529","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-02-05T13:16:58Z","cross_cats_sorted":[],"title_canon_sha256":"3789fbd8ef62478a34e62df03cf5b56d749ef4fd4c21619b145615481b9600a0","abstract_canon_sha256":"5773059a3dc0a15cc24349d48bed72fc6866c426391bce31267eb409ace5ea10"},"schema_version":"1.0"},"canonical_sha256":"d1c0662ef11feb63aba20f0d79faaf9aa493df52f7d7c3031c8c84888bc62364","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:20:30.152170Z","signature_b64":"SUET5eDzAmPqCze6iShn938WjDlyz8sYfrD+S0SFC2iUV82B3fd/G4H4Av6XIYaHD5vml1Xw0fh1Ika1eYT/Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d1c0662ef11feb63aba20f0d79faaf9aa493df52f7d7c3031c8c84888bc62364","last_reissued_at":"2026-05-18T02:20:30.151691Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:20:30.151691Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1502.01529","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":"2026-05-18T02:20:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LT4AKJWjjV7Qf2UulMJka0NBDIKhxpDOjh2/IYHKPBD3tl7Z9qZQwdP2xen6UtVZE2VY4TLhgxXCNyEf+2qaCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T11:15:35.134375Z"},"content_sha256":"89f45454fb047966eec58147537c432036cd3bf2d945b7637e3ad7c7d9ea159a","schema_version":"1.0","event_id":"sha256:89f45454fb047966eec58147537c432036cd3bf2d945b7637e3ad7c7d9ea159a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:2HAGMLXRD7VWHK5CB4GXT6VPTK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"MAGIC observations of MWC 656, the only known Be/BH system","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A, A. Babic, A. Bil, A. Carosi, A. De Angelis, A. Gonz\\'alez Mu\\~noz, A. La Barbera, A. L\\'opez-Oramas, A. Moralejo, A. Niedzwiecki, A. Overkemping, A. Sillanp\\\"a\\\"a, A. Stamerra, A. Treves, B. Biasuzzi, B. De Lotto, B. Marcote, C. Delgado Mendez, C. Fruck, C. Schultz, D. Dominis Prester, D. Dorner, D. Eisenacher, D. Elsaesser, D. Fidalgo, D. F. Torres, D. Galindo, D. Garrido Terrats, D. Hadasch, D. Hildebr, D. Hrupec, D. Lelas, D. Mazin, D. Nakajima, D. Paneque, D. Sobczynska, D. Tescaro, E. Bernardini, E. Carmona, E. Colombo, E. de O\\~na Wilhelmi, E. Lindfors, E. Lorenz, E. Pr, F. Borracci, F. Dazzi, F. Longo, F. Spanier, F. Tavecchio, G. Bonnoli, G. De Caneva, G. Maneva, H. Kellermann, H. Kubo, H. Takami, I. Lozano, ini, I. Puljak, I. Snidaric, J. A. Barrio, J. Aleksi\\'c, J. Becerra Gonz\\'alez, J. Casares, J. Cortina, J. Herrera, J. Hose, J. Krause, J. Kushida, J. L. Contreras, J. M. Mir, J. Mold\\'on, J. M. Paredes, J. Poutanen, J. Rico, J. Rodriguez Garcia, J. Sitarek, J. Storz, J. Thaele, K. Frantzen, K. Kodani, K. Mallot, K. Mannheim, K. Nilsson, K. Nishijima, K. Noda, K. Saito, K. Satalecka, L. A. Antonelli, L. Font, L. Maraschi, L. Takalo, M. Doro, M. Garczarczyk, M. Gaug, M. Hayashida, M. L. Knoetig, M. L\\'opez, M. Makariev, M. Mariotti, M. Mart\\'inez, M. Palatiello, M. Persic, M. Rib\\'o, M. Strzys, M. Teshima, M. V. Fonseca, M. Will, N. Godinovi\\'c, N. Lewandowska, N. Mankuzhiyil, O. Blanch, O. Tibolla, P. Antoranz, P. Bangale, P. Colin, P. Da Vela, P. G. Prada Moroni, P. Munar-Adrover, P. Temnikov, P. Vogler, R. J. Garc\\'ia L\\'opez, R. L\\'opez-Coto, R. Mirzoyan, R. Orito, R. Paoletti, R. Reinthal, R. Zanin, S. Ansoldi, S. Bonnefoy, S. Covino, S. Einecke, S. Lombardi, S. Paiano, S. R. Gozzini, S. R\\\"ugamer, T. Bretz, (the MAGIC Collaboration), T. Saito, T. Schweizer, T. Steinbring, T. Terzi\\'c, T. Toyama, U. Menzel, V. Kadenius, V. Neustroev, V. Scalzotto, V. Scapin, W. Bednarek, W. Idec, W. Rhode, X. Paredes-Fortuny, Y. Hanabata, Y. Konno","submitted_at":"2015-02-05T13:16:58Z","abstract_excerpt":"Context: MWC 656 has recently been established as the first observationally detected high-mass X-ray binary system containing a Be star and a black hole (BH). The system has been associated with a gamma-ray flaring event detected by the AGILE satellite in July 2010. Aims: Our aim is to evaluate if the MWC 656 gamma-ray emission extends to very high energy (VHE > 100 GeV) gamma rays. Methods. We have observed MWC 656 with the MAGIC telescopes for $\\sim$23 hours during two observation periods: between May and June 2012 and June 2013. During the last period, observations were performed contempora"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.01529","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":"2026-05-18T02:20:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JOGZX0bzptjDdxwfYLZ9U4rcswZ9S6zErFs8x23Gka0YlduuP53gZ/XNvyBwHNioGzImaLVPx020Pk+uDAzGCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T11:15:35.134793Z"},"content_sha256":"ae10c6b5a347403b5d86d17ac44295c67895254d7c83e24dd789245d548cf623","schema_version":"1.0","event_id":"sha256:ae10c6b5a347403b5d86d17ac44295c67895254d7c83e24dd789245d548cf623"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2HAGMLXRD7VWHK5CB4GXT6VPTK/bundle.json","state_url":"https://pith.science/pith/2HAGMLXRD7VWHK5CB4GXT6VPTK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2HAGMLXRD7VWHK5CB4GXT6VPTK/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":"2026-05-20T11:15:35Z","links":{"resolver":"https://pith.science/pith/2HAGMLXRD7VWHK5CB4GXT6VPTK","bundle":"https://pith.science/pith/2HAGMLXRD7VWHK5CB4GXT6VPTK/bundle.json","state":"https://pith.science/pith/2HAGMLXRD7VWHK5CB4GXT6VPTK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2HAGMLXRD7VWHK5CB4GXT6VPTK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:2HAGMLXRD7VWHK5CB4GXT6VPTK","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":"5773059a3dc0a15cc24349d48bed72fc6866c426391bce31267eb409ace5ea10","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-02-05T13:16:58Z","title_canon_sha256":"3789fbd8ef62478a34e62df03cf5b56d749ef4fd4c21619b145615481b9600a0"},"schema_version":"1.0","source":{"id":"1502.01529","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.01529","created_at":"2026-05-18T02:20:30Z"},{"alias_kind":"arxiv_version","alias_value":"1502.01529v2","created_at":"2026-05-18T02:20:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.01529","created_at":"2026-05-18T02:20:30Z"},{"alias_kind":"pith_short_12","alias_value":"2HAGMLXRD7VW","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_16","alias_value":"2HAGMLXRD7VWHK5C","created_at":"2026-05-18T12:28:59Z"},{"alias_kind":"pith_short_8","alias_value":"2HAGMLXR","created_at":"2026-05-18T12:28:59Z"}],"graph_snapshots":[{"event_id":"sha256:ae10c6b5a347403b5d86d17ac44295c67895254d7c83e24dd789245d548cf623","target":"graph","created_at":"2026-05-18T02:20:30Z","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":"Context: MWC 656 has recently been established as the first observationally detected high-mass X-ray binary system containing a Be star and a black hole (BH). The system has been associated with a gamma-ray flaring event detected by the AGILE satellite in July 2010. Aims: Our aim is to evaluate if the MWC 656 gamma-ray emission extends to very high energy (VHE > 100 GeV) gamma rays. Methods. We have observed MWC 656 with the MAGIC telescopes for $\\sim$23 hours during two observation periods: between May and June 2012 and June 2013. During the last period, observations were performed contempora","authors_text":"A, A. Babic, A. Bil, A. Carosi, A. De Angelis, A. Gonz\\'alez Mu\\~noz, A. La Barbera, A. L\\'opez-Oramas, A. Moralejo, A. Niedzwiecki, A. Overkemping, A. Sillanp\\\"a\\\"a, A. Stamerra, A. Treves, B. Biasuzzi, B. De Lotto, B. Marcote, C. Delgado Mendez, C. Fruck, C. Schultz, D. Dominis Prester, D. Dorner, D. Eisenacher, D. Elsaesser, D. Fidalgo, D. F. Torres, D. Galindo, D. Garrido Terrats, D. Hadasch, D. Hildebr, D. Hrupec, D. Lelas, D. Mazin, D. Nakajima, D. Paneque, D. Sobczynska, D. Tescaro, E. Bernardini, E. Carmona, E. Colombo, E. de O\\~na Wilhelmi, E. Lindfors, E. Lorenz, E. Pr, F. Borracci, F. Dazzi, F. Longo, F. Spanier, F. Tavecchio, G. Bonnoli, G. De Caneva, G. Maneva, H. Kellermann, H. Kubo, H. Takami, I. Lozano, ini, I. Puljak, I. Snidaric, J. A. Barrio, J. Aleksi\\'c, J. Becerra Gonz\\'alez, J. Casares, J. Cortina, J. Herrera, J. Hose, J. Krause, J. Kushida, J. L. Contreras, J. M. Mir, J. Mold\\'on, J. M. Paredes, J. Poutanen, J. Rico, J. Rodriguez Garcia, J. Sitarek, J. Storz, J. Thaele, K. Frantzen, K. Kodani, K. Mallot, K. Mannheim, K. Nilsson, K. Nishijima, K. Noda, K. Saito, K. Satalecka, L. A. Antonelli, L. Font, L. Maraschi, L. Takalo, M. Doro, M. Garczarczyk, M. Gaug, M. Hayashida, M. L. Knoetig, M. L\\'opez, M. Makariev, M. Mariotti, M. Mart\\'inez, M. Palatiello, M. Persic, M. Rib\\'o, M. Strzys, M. Teshima, M. V. Fonseca, M. Will, N. Godinovi\\'c, N. Lewandowska, N. Mankuzhiyil, O. Blanch, O. Tibolla, P. Antoranz, P. Bangale, P. Colin, P. Da Vela, P. G. Prada Moroni, P. Munar-Adrover, P. Temnikov, P. Vogler, R. J. Garc\\'ia L\\'opez, R. L\\'opez-Coto, R. Mirzoyan, R. Orito, R. Paoletti, R. Reinthal, R. Zanin, S. Ansoldi, S. Bonnefoy, S. Covino, S. Einecke, S. Lombardi, S. Paiano, S. R. Gozzini, S. R\\\"ugamer, T. Bretz, (the MAGIC Collaboration), T. Saito, T. Schweizer, T. Steinbring, T. Terzi\\'c, T. Toyama, U. Menzel, V. Kadenius, V. Neustroev, V. Scalzotto, V. Scapin, W. Bednarek, W. Idec, W. Rhode, X. Paredes-Fortuny, Y. Hanabata, Y. Konno","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-02-05T13:16:58Z","title":"MAGIC observations of MWC 656, the only known Be/BH system"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.01529","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":"sha256:89f45454fb047966eec58147537c432036cd3bf2d945b7637e3ad7c7d9ea159a","target":"record","created_at":"2026-05-18T02:20:30Z","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":"5773059a3dc0a15cc24349d48bed72fc6866c426391bce31267eb409ace5ea10","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-02-05T13:16:58Z","title_canon_sha256":"3789fbd8ef62478a34e62df03cf5b56d749ef4fd4c21619b145615481b9600a0"},"schema_version":"1.0","source":{"id":"1502.01529","kind":"arxiv","version":2}},"canonical_sha256":"d1c0662ef11feb63aba20f0d79faaf9aa493df52f7d7c3031c8c84888bc62364","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d1c0662ef11feb63aba20f0d79faaf9aa493df52f7d7c3031c8c84888bc62364","first_computed_at":"2026-05-18T02:20:30.151691Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:20:30.151691Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SUET5eDzAmPqCze6iShn938WjDlyz8sYfrD+S0SFC2iUV82B3fd/G4H4Av6XIYaHD5vml1Xw0fh1Ika1eYT/Bw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:20:30.152170Z","signed_message":"canonical_sha256_bytes"},"source_id":"1502.01529","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:89f45454fb047966eec58147537c432036cd3bf2d945b7637e3ad7c7d9ea159a","sha256:ae10c6b5a347403b5d86d17ac44295c67895254d7c83e24dd789245d548cf623"],"state_sha256":"dd022e6f3befe90401816f563e86333f5fa4a083dabffbf06b3af24183c3a312"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tSWQpxLk1t1ccjZqSCoXOTxbxaytFQvXT1kQXNXpFs6TTFdTJSRw5Z6M+jgnZa1ek2aHnPUcO3/3IjqfrgQTBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T11:15:35.136925Z","bundle_sha256":"29379aecd19d43750d1fe9463e3c65ef104a7e65635c8334f1390e7b58e4ecab"}}