{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:4USNE66K3LBAMGQSUMSKVIVKI7","short_pith_number":"pith:4USNE66K","canonical_record":{"source":{"id":"2603.21261","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-03-22T14:36:28Z","cross_cats_sorted":[],"title_canon_sha256":"d75c28242eebd53709b98b06bf67f4d089e78bdb752a152fcb3ce403e9fd8f8f","abstract_canon_sha256":"540b53115806b89019fb466235c2dd2d076e959d7b044ede6721d5217ab36bcd"},"schema_version":"1.0"},"canonical_sha256":"e524d27bcadac2061a12a324aaa2aa47e4ba89f60f4ab1a09f2785408b09f8fd","source":{"kind":"arxiv","id":"2603.21261","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2603.21261","created_at":"2026-06-01T02:03:38Z"},{"alias_kind":"arxiv_version","alias_value":"2603.21261v2","created_at":"2026-06-01T02:03:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2603.21261","created_at":"2026-06-01T02:03:38Z"},{"alias_kind":"pith_short_12","alias_value":"4USNE66K3LBA","created_at":"2026-06-01T02:03:38Z"},{"alias_kind":"pith_short_16","alias_value":"4USNE66K3LBAMGQS","created_at":"2026-06-01T02:03:38Z"},{"alias_kind":"pith_short_8","alias_value":"4USNE66K","created_at":"2026-06-01T02:03:38Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:4USNE66K3LBAMGQSUMSKVIVKI7","target":"record","payload":{"canonical_record":{"source":{"id":"2603.21261","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-03-22T14:36:28Z","cross_cats_sorted":[],"title_canon_sha256":"d75c28242eebd53709b98b06bf67f4d089e78bdb752a152fcb3ce403e9fd8f8f","abstract_canon_sha256":"540b53115806b89019fb466235c2dd2d076e959d7b044ede6721d5217ab36bcd"},"schema_version":"1.0"},"canonical_sha256":"e524d27bcadac2061a12a324aaa2aa47e4ba89f60f4ab1a09f2785408b09f8fd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-01T02:03:38.600990Z","signature_b64":"eoMU871BYTseMPLKfo+8lvmNpiGtp/mg/Tpb2ZtAnFOk01IdfNF9D1tgqmr13lfgNza/C69o9Nd4i1Degr+JCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e524d27bcadac2061a12a324aaa2aa47e4ba89f60f4ab1a09f2785408b09f8fd","last_reissued_at":"2026-06-01T02:03:38.598709Z","signature_status":"signed_v1","first_computed_at":"2026-06-01T02:03:38.598709Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2603.21261","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":"2026-06-01T02:03:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"THajS78btKpvp6ofSV42naREgAqibydXcqO9uK45zJaJzUtIkBFsQ807xXN3URQjxAvLpkfXM859nyWjJweJBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T08:13:50.256161Z"},"content_sha256":"11a90cfa77eba048619aff2b7810d4b8cfab3cf3d427f527ef3a261b55cbce80","schema_version":"1.0","event_id":"sha256:11a90cfa77eba048619aff2b7810d4b8cfab3cf3d427f527ef3a261b55cbce80"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:4USNE66K3LBAMGQSUMSKVIVKI7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"First constraints on point-like astrophysical sources using Baikal-GVD muon neutrino events","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. A. Doroshenko, A. A. Kulikov, A. A. Petrukhin, A. D. Avrorin, A. E. Sirenko, A. G. Solovjev, A. N. Dmitrieva, A. N. Dyachok, A. P. Koshechkin, A. P. Stromakov, A. R. Gafarov, A. R. Gordeev, A. S. Chepurnov, A. S. Nikolaev, A. S. Sheshukov, A. V. Avrorin, A. V. Korobchenko, A. V. Skurikhin, Baikal-GVD Collaboration: V. A. Allakhverdyan, B. A. Shaybonov, B. B. Ulzutuev, D. N. Zaborov, D. P. Petukhov, D. V. Naumov, D. Y. Zvezdov, E. A. Bondarev, E. Eckerov\\'a, E. N. Pliskovsky, E. S. Morgunov, E. V. Khramov, E. V. Ryabov, E. V. Shirokov, F. \\v{S}imkovic, G. B. Safronov, G. V. Domogatsky, G. V. Trubnikov, I. A. Belolaptikov, I. A. Perevalova, I. V. Borina, I. V. Kharuk, I. \\v{S}tekl, K. G. Kebkal, K. V. Golubkov, K. V. Konischev, M. I. Rozanov, M. M. Kolbin, M. N. Sorokovikov, M. V. Kruglov, M. V. Lisitsin, N. M. Budnev, O. V. Suvorova, R. Dvornick\\'y, R. R. Mirgazov, S. I. Zavyalov, S. O. Koligaev, S. S. Khokhlov, S. V. Lovtsov, T. I. Gress, T. V. Elzhov, V. A. Chadymov, V. A. Kozhin, V. A. Tabolenko, V. F. Kulepov, V. I. Tretyak, V. K. Kebkal, V. M. Aynutdinov, V. N. Fomin, V. Y. Dik, V. Y. Shishkin, Y. E. Lemeshev, Y. V. Yablokova, Z. Be\\v{n}u\\v{s}ov\\'a, Zh.-A. M. Dzhilkibaev, Z. Wang","submitted_at":"2026-03-22T14:36:28Z","abstract_excerpt":"Baikal-GVD is a new-generation neutrino telescope under final construction stages in Lake Baikal, Russia. With an instrumented volume already at 0.7 km$^3$, Baikal-GVD is currently the largest neutrino telescope in the Northern hemisphere. A sub-degree angular resolution, made possible thanks to high purity of Baikal water, further enhances Baikal-GVD sensitivity to cosmic neutrino sources. In this work, we employ track-like events collected from the partially completed detector between April 2019 and March 2024 to search for muon neutrino fluxes from 92 astrophysical objects of interest. For "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2603.21261","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2603.21261/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-06-01T02:03:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oa2omF4GXuJgGMB20wFI0d/ddGFL/2ecfZUhwK7vgBd/SA21nT6wBuaaLJ7jQjPkLUy9Un03w7ZJ11pM+u2zDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T08:13:50.256558Z"},"content_sha256":"ee5608104c0fad0de3a12fd527c3abc5113dc17248840b78dc796cb29cebe789","schema_version":"1.0","event_id":"sha256:ee5608104c0fad0de3a12fd527c3abc5113dc17248840b78dc796cb29cebe789"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4USNE66K3LBAMGQSUMSKVIVKI7/bundle.json","state_url":"https://pith.science/pith/4USNE66K3LBAMGQSUMSKVIVKI7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4USNE66K3LBAMGQSUMSKVIVKI7/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":"2026-06-02T08:13:50Z","links":{"resolver":"https://pith.science/pith/4USNE66K3LBAMGQSUMSKVIVKI7","bundle":"https://pith.science/pith/4USNE66K3LBAMGQSUMSKVIVKI7/bundle.json","state":"https://pith.science/pith/4USNE66K3LBAMGQSUMSKVIVKI7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4USNE66K3LBAMGQSUMSKVIVKI7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:4USNE66K3LBAMGQSUMSKVIVKI7","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":"540b53115806b89019fb466235c2dd2d076e959d7b044ede6721d5217ab36bcd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-03-22T14:36:28Z","title_canon_sha256":"d75c28242eebd53709b98b06bf67f4d089e78bdb752a152fcb3ce403e9fd8f8f"},"schema_version":"1.0","source":{"id":"2603.21261","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2603.21261","created_at":"2026-06-01T02:03:38Z"},{"alias_kind":"arxiv_version","alias_value":"2603.21261v2","created_at":"2026-06-01T02:03:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2603.21261","created_at":"2026-06-01T02:03:38Z"},{"alias_kind":"pith_short_12","alias_value":"4USNE66K3LBA","created_at":"2026-06-01T02:03:38Z"},{"alias_kind":"pith_short_16","alias_value":"4USNE66K3LBAMGQS","created_at":"2026-06-01T02:03:38Z"},{"alias_kind":"pith_short_8","alias_value":"4USNE66K","created_at":"2026-06-01T02:03:38Z"}],"graph_snapshots":[{"event_id":"sha256:ee5608104c0fad0de3a12fd527c3abc5113dc17248840b78dc796cb29cebe789","target":"graph","created_at":"2026-06-01T02:03:38Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2603.21261/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Baikal-GVD is a new-generation neutrino telescope under final construction stages in Lake Baikal, Russia. With an instrumented volume already at 0.7 km$^3$, Baikal-GVD is currently the largest neutrino telescope in the Northern hemisphere. A sub-degree angular resolution, made possible thanks to high purity of Baikal water, further enhances Baikal-GVD sensitivity to cosmic neutrino sources. In this work, we employ track-like events collected from the partially completed detector between April 2019 and March 2024 to search for muon neutrino fluxes from 92 astrophysical objects of interest. For ","authors_text":"A. A. Doroshenko, A. A. Kulikov, A. A. Petrukhin, A. D. Avrorin, A. E. Sirenko, A. G. Solovjev, A. N. Dmitrieva, A. N. Dyachok, A. P. Koshechkin, A. P. Stromakov, A. R. Gafarov, A. R. Gordeev, A. S. Chepurnov, A. S. Nikolaev, A. S. Sheshukov, A. V. Avrorin, A. V. Korobchenko, A. V. Skurikhin, Baikal-GVD Collaboration: V. A. Allakhverdyan, B. A. Shaybonov, B. B. Ulzutuev, D. N. Zaborov, D. P. Petukhov, D. V. Naumov, D. Y. Zvezdov, E. A. Bondarev, E. Eckerov\\'a, E. N. Pliskovsky, E. S. Morgunov, E. V. Khramov, E. V. Ryabov, E. V. Shirokov, F. \\v{S}imkovic, G. B. Safronov, G. V. Domogatsky, G. V. Trubnikov, I. A. Belolaptikov, I. A. Perevalova, I. V. Borina, I. V. Kharuk, I. \\v{S}tekl, K. G. Kebkal, K. V. Golubkov, K. V. Konischev, M. I. Rozanov, M. M. Kolbin, M. N. Sorokovikov, M. V. Kruglov, M. V. Lisitsin, N. M. Budnev, O. V. Suvorova, R. Dvornick\\'y, R. R. Mirgazov, S. I. Zavyalov, S. O. Koligaev, S. S. Khokhlov, S. V. Lovtsov, T. I. Gress, T. V. Elzhov, V. A. Chadymov, V. A. Kozhin, V. A. Tabolenko, V. F. Kulepov, V. I. Tretyak, V. K. Kebkal, V. M. Aynutdinov, V. N. Fomin, V. Y. Dik, V. Y. Shishkin, Y. E. Lemeshev, Y. V. Yablokova, Z. Be\\v{n}u\\v{s}ov\\'a, Zh.-A. M. Dzhilkibaev, Z. Wang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-03-22T14:36:28Z","title":"First constraints on point-like astrophysical sources using Baikal-GVD muon neutrino events"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2603.21261","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":"sha256:11a90cfa77eba048619aff2b7810d4b8cfab3cf3d427f527ef3a261b55cbce80","target":"record","created_at":"2026-06-01T02:03:38Z","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":"540b53115806b89019fb466235c2dd2d076e959d7b044ede6721d5217ab36bcd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-03-22T14:36:28Z","title_canon_sha256":"d75c28242eebd53709b98b06bf67f4d089e78bdb752a152fcb3ce403e9fd8f8f"},"schema_version":"1.0","source":{"id":"2603.21261","kind":"arxiv","version":2}},"canonical_sha256":"e524d27bcadac2061a12a324aaa2aa47e4ba89f60f4ab1a09f2785408b09f8fd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e524d27bcadac2061a12a324aaa2aa47e4ba89f60f4ab1a09f2785408b09f8fd","first_computed_at":"2026-06-01T02:03:38.598709Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-01T02:03:38.598709Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"eoMU871BYTseMPLKfo+8lvmNpiGtp/mg/Tpb2ZtAnFOk01IdfNF9D1tgqmr13lfgNza/C69o9Nd4i1Degr+JCg==","signature_status":"signed_v1","signed_at":"2026-06-01T02:03:38.600990Z","signed_message":"canonical_sha256_bytes"},"source_id":"2603.21261","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:11a90cfa77eba048619aff2b7810d4b8cfab3cf3d427f527ef3a261b55cbce80","sha256:ee5608104c0fad0de3a12fd527c3abc5113dc17248840b78dc796cb29cebe789"],"state_sha256":"83b55907c98972dac84d26ac88d74bdd4ca4254214f0a7f11e1d480e13a95a0e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oM53YlZ7TD0Whuxcl1E+8McELJsbZsyFimxJDm6O0y3WhyFRdcfviKSu2LA6JpHJsXxWmNqQlkqIYJgbTeOCBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T08:13:50.258526Z","bundle_sha256":"4f9dc1d90801f2480a0d07dde63a8a56aa00be41b9602665a43ca7f0782ad4ed"}}