{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:4G3BMDKYAZKQ5IINROP3YQJWWY","short_pith_number":"pith:4G3BMDKY","canonical_record":{"source":{"id":"2008.13047","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-08-29T20:21:51Z","cross_cats_sorted":[],"title_canon_sha256":"914365e9acaa2465bb305dcbe9a02b28982f62fab3dcce0eb51b05bbf8487170","abstract_canon_sha256":"f1a2d8c52402b05ec92ad1fbe716156922c9be1e75d9f1cbf27cf1ceb50c820e"},"schema_version":"1.0"},"canonical_sha256":"e1b6160d5806550ea10d8b9fbc4136b60d5069dd7b0a05e23289a493202b77fe","source":{"kind":"arxiv","id":"2008.13047","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2008.13047","created_at":"2026-07-05T01:32:24Z"},{"alias_kind":"arxiv_version","alias_value":"2008.13047v2","created_at":"2026-07-05T01:32:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2008.13047","created_at":"2026-07-05T01:32:24Z"},{"alias_kind":"pith_short_12","alias_value":"4G3BMDKYAZKQ","created_at":"2026-07-05T01:32:24Z"},{"alias_kind":"pith_short_16","alias_value":"4G3BMDKYAZKQ5IIN","created_at":"2026-07-05T01:32:24Z"},{"alias_kind":"pith_short_8","alias_value":"4G3BMDKY","created_at":"2026-07-05T01:32:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:4G3BMDKYAZKQ5IINROP3YQJWWY","target":"record","payload":{"canonical_record":{"source":{"id":"2008.13047","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-08-29T20:21:51Z","cross_cats_sorted":[],"title_canon_sha256":"914365e9acaa2465bb305dcbe9a02b28982f62fab3dcce0eb51b05bbf8487170","abstract_canon_sha256":"f1a2d8c52402b05ec92ad1fbe716156922c9be1e75d9f1cbf27cf1ceb50c820e"},"schema_version":"1.0"},"canonical_sha256":"e1b6160d5806550ea10d8b9fbc4136b60d5069dd7b0a05e23289a493202b77fe","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:32:24.818023Z","signature_b64":"hsYZT/IAox2eprAIaWppL/Bsy35RVwWUrwAaaeQw/sFUkiRUnZdiA1/wxF45T8ervVSxN6ZOT1HUnwAHEEtPDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e1b6160d5806550ea10d8b9fbc4136b60d5069dd7b0a05e23289a493202b77fe","last_reissued_at":"2026-07-05T01:32:24.817550Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:32:24.817550Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2008.13047","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":"2026-07-05T01:32:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pGym0k/bQiqRY0LNgTG0cwkph0+x43VetrvUtZQoCbtu5Bo2/SCaHNNVhpOS0jUhdo1hBm4PLqnvNo7jPXDbAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T02:00:06.344320Z"},"content_sha256":"c6abdf66f6f02faddea47bc2173a8a9b4d0d678c299a25b730862c8630f01891","schema_version":"1.0","event_id":"sha256:c6abdf66f6f02faddea47bc2173a8a9b4d0d678c299a25b730862c8630f01891"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:4G3BMDKYAZKQ5IINROP3YQJWWY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Snowmass 2021 Letter of Interest: The Probe Of Multi-Messenger Astrophysics (POEMMA)","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A.L.Cummings, A.Neronov, A.N.Otte, A.V.Olinto, C.Guepin, D.Barghini, D.R.Bergman, D.Winn, E.A.Hays, E.Gazda, E.G.Judd, E.Kuznetsov, E.Parizot, F.Bisconti, F.Fenu, F.Oikonomou, F.Sarazin, F.Stecker, G.Fillipatos, G.Prevot, H.Miyamoto, I.De Mitri, J.Eser, J.F.Soriano, J.H.Adams, J.Krizmanic, J.McEnery, J.M.Nachtman, J.S.Perkins, J.W.Mitchell, K.-D.Merenda, K.Fang, K.Shinozaki, L.A.Anchordoqui, L.Marcelli, L.Wiencke, L.W.Piotrowski, M.Bagheri, M.Battisti, M.Bustamante, M.Casolino, M.E.Bertaina, M.H.Reno, M.J.Christl, M.Ricci, M.Unger, M.Zotov, O.Romero Matamala, P.F.Bertone, P.Klimov, P.Picozza, P.Reardon, R.Aloisio, R.Diesing, R.Engel, R.M.Young, R.Ulrich, S.Mackovjak, S.S.Meyer, T.M.Venters, T.Paul, V.Kungel, Y. Onel, Y.Takizawa","submitted_at":"2020-08-29T20:21:51Z","abstract_excerpt":"The Probe Of Extreme Multi-Messenger Astrophysics (POEMMA) is designed to identify the sources of Ultra-High-Energy Cosmic Rays (UHECRs) and to observe cosmic neutrinos, both with full-sky coverage. Developed as a NASA Astrophysics Probe-class mission, POEMMA consists of two spacecraft flying in a loose formation at 525 km altitude, 28.5 deg inclination orbits. Each spacecraft hosts a Schmidt telescope with a large collecting area and wide field of view. A novel focal plane is optimized to observe both the UV fluorescence signal from extensive air showers (EASs) and the beamed optical Cherenko"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2008.13047","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/2008.13047/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":"2026-07-05T01:32:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"c9MBdRXIjH9a2S4KMDOZYiui8LsBNMqUGOgJU65adxuG5hXM3z9uGy3knULAH5nuzUl/c+2bLuPKkpgWqA/CDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T02:00:06.345239Z"},"content_sha256":"7a6a55f41866969a89845285ee44c3b8b83725b39fee4014c8169c1f6dbd48aa","schema_version":"1.0","event_id":"sha256:7a6a55f41866969a89845285ee44c3b8b83725b39fee4014c8169c1f6dbd48aa"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4G3BMDKYAZKQ5IINROP3YQJWWY/bundle.json","state_url":"https://pith.science/pith/4G3BMDKYAZKQ5IINROP3YQJWWY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4G3BMDKYAZKQ5IINROP3YQJWWY/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":"2026-08-18T02:00:06Z","links":{"resolver":"https://pith.science/pith/4G3BMDKYAZKQ5IINROP3YQJWWY","bundle":"https://pith.science/pith/4G3BMDKYAZKQ5IINROP3YQJWWY/bundle.json","state":"https://pith.science/pith/4G3BMDKYAZKQ5IINROP3YQJWWY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4G3BMDKYAZKQ5IINROP3YQJWWY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:4G3BMDKYAZKQ5IINROP3YQJWWY","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":"f1a2d8c52402b05ec92ad1fbe716156922c9be1e75d9f1cbf27cf1ceb50c820e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-08-29T20:21:51Z","title_canon_sha256":"914365e9acaa2465bb305dcbe9a02b28982f62fab3dcce0eb51b05bbf8487170"},"schema_version":"1.0","source":{"id":"2008.13047","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2008.13047","created_at":"2026-07-05T01:32:24Z"},{"alias_kind":"arxiv_version","alias_value":"2008.13047v2","created_at":"2026-07-05T01:32:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2008.13047","created_at":"2026-07-05T01:32:24Z"},{"alias_kind":"pith_short_12","alias_value":"4G3BMDKYAZKQ","created_at":"2026-07-05T01:32:24Z"},{"alias_kind":"pith_short_16","alias_value":"4G3BMDKYAZKQ5IIN","created_at":"2026-07-05T01:32:24Z"},{"alias_kind":"pith_short_8","alias_value":"4G3BMDKY","created_at":"2026-07-05T01:32:24Z"}],"graph_snapshots":[{"event_id":"sha256:7a6a55f41866969a89845285ee44c3b8b83725b39fee4014c8169c1f6dbd48aa","target":"graph","created_at":"2026-07-05T01:32:24Z","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/2008.13047/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The Probe Of Extreme Multi-Messenger Astrophysics (POEMMA) is designed to identify the sources of Ultra-High-Energy Cosmic Rays (UHECRs) and to observe cosmic neutrinos, both with full-sky coverage. Developed as a NASA Astrophysics Probe-class mission, POEMMA consists of two spacecraft flying in a loose formation at 525 km altitude, 28.5 deg inclination orbits. Each spacecraft hosts a Schmidt telescope with a large collecting area and wide field of view. A novel focal plane is optimized to observe both the UV fluorescence signal from extensive air showers (EASs) and the beamed optical Cherenko","authors_text":"A.L.Cummings, A.Neronov, A.N.Otte, A.V.Olinto, C.Guepin, D.Barghini, D.R.Bergman, D.Winn, E.A.Hays, E.Gazda, E.G.Judd, E.Kuznetsov, E.Parizot, F.Bisconti, F.Fenu, F.Oikonomou, F.Sarazin, F.Stecker, G.Fillipatos, G.Prevot, H.Miyamoto, I.De Mitri, J.Eser, J.F.Soriano, J.H.Adams, J.Krizmanic, J.McEnery, J.M.Nachtman, J.S.Perkins, J.W.Mitchell, K.-D.Merenda, K.Fang, K.Shinozaki, L.A.Anchordoqui, L.Marcelli, L.Wiencke, L.W.Piotrowski, M.Bagheri, M.Battisti, M.Bustamante, M.Casolino, M.E.Bertaina, M.H.Reno, M.J.Christl, M.Ricci, M.Unger, M.Zotov, O.Romero Matamala, P.F.Bertone, P.Klimov, P.Picozza, P.Reardon, R.Aloisio, R.Diesing, R.Engel, R.M.Young, R.Ulrich, S.Mackovjak, S.S.Meyer, T.M.Venters, T.Paul, V.Kungel, Y. Onel, Y.Takizawa","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-08-29T20:21:51Z","title":"Snowmass 2021 Letter of Interest: The Probe Of Multi-Messenger Astrophysics (POEMMA)"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2008.13047","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:c6abdf66f6f02faddea47bc2173a8a9b4d0d678c299a25b730862c8630f01891","target":"record","created_at":"2026-07-05T01:32:24Z","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":"f1a2d8c52402b05ec92ad1fbe716156922c9be1e75d9f1cbf27cf1ceb50c820e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2020-08-29T20:21:51Z","title_canon_sha256":"914365e9acaa2465bb305dcbe9a02b28982f62fab3dcce0eb51b05bbf8487170"},"schema_version":"1.0","source":{"id":"2008.13047","kind":"arxiv","version":2}},"canonical_sha256":"e1b6160d5806550ea10d8b9fbc4136b60d5069dd7b0a05e23289a493202b77fe","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e1b6160d5806550ea10d8b9fbc4136b60d5069dd7b0a05e23289a493202b77fe","first_computed_at":"2026-07-05T01:32:24.817550Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:32:24.817550Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hsYZT/IAox2eprAIaWppL/Bsy35RVwWUrwAaaeQw/sFUkiRUnZdiA1/wxF45T8ervVSxN6ZOT1HUnwAHEEtPDw==","signature_status":"signed_v1","signed_at":"2026-07-05T01:32:24.818023Z","signed_message":"canonical_sha256_bytes"},"source_id":"2008.13047","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c6abdf66f6f02faddea47bc2173a8a9b4d0d678c299a25b730862c8630f01891","sha256:7a6a55f41866969a89845285ee44c3b8b83725b39fee4014c8169c1f6dbd48aa"],"state_sha256":"efb045b10dcd58d26dc7aef8b4299166fdbd2be4ffd60a46471d4971e80c68e4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sI4QxJcqhunUhLWzyrynFP+2m6X8KB8IluAOHqu6wpaZl70Gp88k4HPY61Q3ArxrgyqLzuJFvmVDIp4l6UsqAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-18T02:00:06.352541Z","bundle_sha256":"44cdc3369710219d6ebe5b46a687ade2530ca529be67ce2b8ef99fa79f6c8422"}}