{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:I7ZSSE32PO4W3ERRIHTNP3V2QJ","short_pith_number":"pith:I7ZSSE32","canonical_record":{"source":{"id":"1304.5420","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-04-19T13:46:55Z","cross_cats_sorted":[],"title_canon_sha256":"61827c00c29d1792f39a1d953d28ecee05d27760a96134f35dbfc80db2a15286","abstract_canon_sha256":"61b33d5b442a2fba5f55c248d61fbb65f19ac5614f0ec75efb6f3c25c4bea61c"},"schema_version":"1.0"},"canonical_sha256":"47f329137a7bb96d923141e6d7eeba82419cea4ebe3af09ba944a04e8eac75eb","source":{"kind":"arxiv","id":"1304.5420","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1304.5420","created_at":"2026-05-18T01:50:24Z"},{"alias_kind":"arxiv_version","alias_value":"1304.5420v1","created_at":"2026-05-18T01:50:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1304.5420","created_at":"2026-05-18T01:50:24Z"},{"alias_kind":"pith_short_12","alias_value":"I7ZSSE32PO4W","created_at":"2026-05-18T12:27:46Z"},{"alias_kind":"pith_short_16","alias_value":"I7ZSSE32PO4W3ERR","created_at":"2026-05-18T12:27:46Z"},{"alias_kind":"pith_short_8","alias_value":"I7ZSSE32","created_at":"2026-05-18T12:27:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:I7ZSSE32PO4W3ERRIHTNP3V2QJ","target":"record","payload":{"canonical_record":{"source":{"id":"1304.5420","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-04-19T13:46:55Z","cross_cats_sorted":[],"title_canon_sha256":"61827c00c29d1792f39a1d953d28ecee05d27760a96134f35dbfc80db2a15286","abstract_canon_sha256":"61b33d5b442a2fba5f55c248d61fbb65f19ac5614f0ec75efb6f3c25c4bea61c"},"schema_version":"1.0"},"canonical_sha256":"47f329137a7bb96d923141e6d7eeba82419cea4ebe3af09ba944a04e8eac75eb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:50:24.502149Z","signature_b64":"JTVJxxJeZOSYsrPOjEQnxuUEw0jcT7R2H1jW0DqJspnLMs+WZnd75TSIPVq1HxQghq2VimPArDcPRlDC7pkxCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"47f329137a7bb96d923141e6d7eeba82419cea4ebe3af09ba944a04e8eac75eb","last_reissued_at":"2026-05-18T01:50:24.501399Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:50:24.501399Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1304.5420","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":"2026-05-18T01:50:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+2qmec/rJZdiOs9BH+ZeUbkDZJZaPcVWX833L5vTAjtmnLOwCj4nOMrsOyMG4/SWg5wFWhCxCLa7mIINdor4Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T19:17:10.334650Z"},"content_sha256":"37dcb0efc473d548ab77b2a11dfc48807ef44e3f6227c489dd6dd5a29f8a14fd","schema_version":"1.0","event_id":"sha256:37dcb0efc473d548ab77b2a11dfc48807ef44e3f6227c489dd6dd5a29f8a14fd"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:I7ZSSE32PO4W3ERRIHTNP3V2QJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Measurement of the isotopic composition of hydrogen and helium nuclei in cosmic rays with the PAMELA experiment","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. Bruno, A. G. Mayorov, A. Leonov, A. M. Galper, A. Monaco, A. N. Kvashnin, A. Vacchi, A. V. Karelin, C. De Santis, C. Pizzolotto, D. Campana, E. A. Bogomolov, E. Mocchiutti, E. Vannuccini, F. Cafagna, F. Palma, G. A. Bazilevskaya, G. Castellini, G. C. Barbarino, G. Osteria, G. Vasilyev, G. Zampa, I. A. Danilchenko, J. Wu, L. Marcelli, L. Rossetto, M. Boezio, M. Bongi, M. Casolino, M. P. De Pascale, M. Pearce, M. Ricci, M. Simon, N. De Simone, N. Mori, N. Nikonov, N. Zampa, O. Adriani, P. Carlson, P. Papini, P. Picozza, P. Spillantini, R. Bellotti, R. Carbone, R. Sarkar, R. Sparvoli, S. A. Voronov, S. Borisov, S. Bottai, S. B. Ricciarini, S. Koldobskiy, S. V. Koldashov, S. Y. Krutkov, V. Bonvicini, V. Di Felice, V. Formato, V. G. Zverev, V. Malakhov, V. V. Mikhailov, W. Menn, Y. I. Stozhkov, Y. T. Yurkin","submitted_at":"2013-04-19T13:46:55Z","abstract_excerpt":"The satellite-borne experiment PAMELA has been used to make new measurements of cosmic ray H and He isotopes. The isotopic composition was measured between 100 and 600 MeV/n for hydrogen and between 100 and 900 MeV/n for helium isotopes over the 23rd solar minimum from July 2006 to December 2007. The energy spectrum of these components carries fundamental information regarding the propagation of cosmic rays in the galaxy which are competitive with those obtained from other secondary to primary measurements such as B/C."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.5420","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":"2026-05-18T01:50:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Yg7U7pCxg6MyAUuP9FMGrw10kt5hc94wJUZaajF+BmwYQov0Ts93zHa81oDYkzxoM3lelzf4VhtCJcSpkg7bCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T19:17:10.335345Z"},"content_sha256":"006f22866787e6a2a81bc548bd282782ab91c6813ff63c7140e3f18d39d8f244","schema_version":"1.0","event_id":"sha256:006f22866787e6a2a81bc548bd282782ab91c6813ff63c7140e3f18d39d8f244"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/I7ZSSE32PO4W3ERRIHTNP3V2QJ/bundle.json","state_url":"https://pith.science/pith/I7ZSSE32PO4W3ERRIHTNP3V2QJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/I7ZSSE32PO4W3ERRIHTNP3V2QJ/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":"2026-05-27T19:17:10Z","links":{"resolver":"https://pith.science/pith/I7ZSSE32PO4W3ERRIHTNP3V2QJ","bundle":"https://pith.science/pith/I7ZSSE32PO4W3ERRIHTNP3V2QJ/bundle.json","state":"https://pith.science/pith/I7ZSSE32PO4W3ERRIHTNP3V2QJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/I7ZSSE32PO4W3ERRIHTNP3V2QJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:I7ZSSE32PO4W3ERRIHTNP3V2QJ","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":"61b33d5b442a2fba5f55c248d61fbb65f19ac5614f0ec75efb6f3c25c4bea61c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-04-19T13:46:55Z","title_canon_sha256":"61827c00c29d1792f39a1d953d28ecee05d27760a96134f35dbfc80db2a15286"},"schema_version":"1.0","source":{"id":"1304.5420","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1304.5420","created_at":"2026-05-18T01:50:24Z"},{"alias_kind":"arxiv_version","alias_value":"1304.5420v1","created_at":"2026-05-18T01:50:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1304.5420","created_at":"2026-05-18T01:50:24Z"},{"alias_kind":"pith_short_12","alias_value":"I7ZSSE32PO4W","created_at":"2026-05-18T12:27:46Z"},{"alias_kind":"pith_short_16","alias_value":"I7ZSSE32PO4W3ERR","created_at":"2026-05-18T12:27:46Z"},{"alias_kind":"pith_short_8","alias_value":"I7ZSSE32","created_at":"2026-05-18T12:27:46Z"}],"graph_snapshots":[{"event_id":"sha256:006f22866787e6a2a81bc548bd282782ab91c6813ff63c7140e3f18d39d8f244","target":"graph","created_at":"2026-05-18T01:50:24Z","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"},"paper":{"abstract_excerpt":"The satellite-borne experiment PAMELA has been used to make new measurements of cosmic ray H and He isotopes. The isotopic composition was measured between 100 and 600 MeV/n for hydrogen and between 100 and 900 MeV/n for helium isotopes over the 23rd solar minimum from July 2006 to December 2007. The energy spectrum of these components carries fundamental information regarding the propagation of cosmic rays in the galaxy which are competitive with those obtained from other secondary to primary measurements such as B/C.","authors_text":"A. Bruno, A. G. Mayorov, A. Leonov, A. M. Galper, A. Monaco, A. N. Kvashnin, A. Vacchi, A. V. Karelin, C. De Santis, C. Pizzolotto, D. Campana, E. A. Bogomolov, E. Mocchiutti, E. Vannuccini, F. Cafagna, F. Palma, G. A. Bazilevskaya, G. Castellini, G. C. Barbarino, G. Osteria, G. Vasilyev, G. Zampa, I. A. Danilchenko, J. Wu, L. Marcelli, L. Rossetto, M. Boezio, M. Bongi, M. Casolino, M. P. De Pascale, M. Pearce, M. Ricci, M. Simon, N. De Simone, N. Mori, N. Nikonov, N. Zampa, O. Adriani, P. Carlson, P. Papini, P. Picozza, P. Spillantini, R. Bellotti, R. Carbone, R. Sarkar, R. Sparvoli, S. A. Voronov, S. Borisov, S. Bottai, S. B. Ricciarini, S. Koldobskiy, S. V. Koldashov, S. Y. Krutkov, V. Bonvicini, V. Di Felice, V. Formato, V. G. Zverev, V. Malakhov, V. V. Mikhailov, W. Menn, Y. I. Stozhkov, Y. T. Yurkin","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-04-19T13:46:55Z","title":"Measurement of the isotopic composition of hydrogen and helium nuclei in cosmic rays with the PAMELA experiment"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.5420","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":"sha256:37dcb0efc473d548ab77b2a11dfc48807ef44e3f6227c489dd6dd5a29f8a14fd","target":"record","created_at":"2026-05-18T01:50:24Z","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":"61b33d5b442a2fba5f55c248d61fbb65f19ac5614f0ec75efb6f3c25c4bea61c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-04-19T13:46:55Z","title_canon_sha256":"61827c00c29d1792f39a1d953d28ecee05d27760a96134f35dbfc80db2a15286"},"schema_version":"1.0","source":{"id":"1304.5420","kind":"arxiv","version":1}},"canonical_sha256":"47f329137a7bb96d923141e6d7eeba82419cea4ebe3af09ba944a04e8eac75eb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"47f329137a7bb96d923141e6d7eeba82419cea4ebe3af09ba944a04e8eac75eb","first_computed_at":"2026-05-18T01:50:24.501399Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:50:24.501399Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JTVJxxJeZOSYsrPOjEQnxuUEw0jcT7R2H1jW0DqJspnLMs+WZnd75TSIPVq1HxQghq2VimPArDcPRlDC7pkxCA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:50:24.502149Z","signed_message":"canonical_sha256_bytes"},"source_id":"1304.5420","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:37dcb0efc473d548ab77b2a11dfc48807ef44e3f6227c489dd6dd5a29f8a14fd","sha256:006f22866787e6a2a81bc548bd282782ab91c6813ff63c7140e3f18d39d8f244"],"state_sha256":"40b409456228aad54012dc2fb5af67c0a82839e7fe492899983ebee24aa8dbee"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2UQeA4vYnYD6K022k3knvj2DyHZkqFKZlYhbBNMJrIxDcMyBJDFUbCm02yngnhNf7pGNXuaArT1ws9nxeUmSAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T19:17:10.338069Z","bundle_sha256":"b059c3ddba5cd92d0a06489caf3215e881c425f21ab561ff823543852ef21f66"}}