{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:XTN6MQAXZDICPACOHV4Z5K7PHI","short_pith_number":"pith:XTN6MQAX","canonical_record":{"source":{"id":"2012.02731","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2020-12-04T17:25:41Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"659fa60a6b0b4715eabaa289af56a14bae3f39f132285cfe559035b49cf7c768","abstract_canon_sha256":"2ba9117d502c18676d4fc35721c6823fdadc0a52e31de235d4e7d3339580f43e"},"schema_version":"1.0"},"canonical_sha256":"bcdbe64017c8d027804e3d799eabef3a10e93c75ccda0e38c932537682a40f43","source":{"kind":"arxiv","id":"2012.02731","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2012.02731","created_at":"2026-07-05T01:57:09Z"},{"alias_kind":"arxiv_version","alias_value":"2012.02731v1","created_at":"2026-07-05T01:57:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2012.02731","created_at":"2026-07-05T01:57:09Z"},{"alias_kind":"pith_short_12","alias_value":"XTN6MQAXZDIC","created_at":"2026-07-05T01:57:09Z"},{"alias_kind":"pith_short_16","alias_value":"XTN6MQAXZDICPACO","created_at":"2026-07-05T01:57:09Z"},{"alias_kind":"pith_short_8","alias_value":"XTN6MQAX","created_at":"2026-07-05T01:57:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:XTN6MQAXZDICPACOHV4Z5K7PHI","target":"record","payload":{"canonical_record":{"source":{"id":"2012.02731","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2020-12-04T17:25:41Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"659fa60a6b0b4715eabaa289af56a14bae3f39f132285cfe559035b49cf7c768","abstract_canon_sha256":"2ba9117d502c18676d4fc35721c6823fdadc0a52e31de235d4e7d3339580f43e"},"schema_version":"1.0"},"canonical_sha256":"bcdbe64017c8d027804e3d799eabef3a10e93c75ccda0e38c932537682a40f43","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:57:09.621109Z","signature_b64":"0EWWt+PKF6MFj3mW+2GO2AAYiwuUc5yQi33LO5b3taL1q7umlG06Kqg15FB9BVZajb1KXFm1ayXYJ3ReqYwuBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bcdbe64017c8d027804e3d799eabef3a10e93c75ccda0e38c932537682a40f43","last_reissued_at":"2026-07-05T01:57:09.620617Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:57:09.620617Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2012.02731","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":"2026-07-05T01:57:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3UVhPZJRbtxRq9DSI1XTfhcaoq89Zrogw6g0oXrsqEke4YLZYS1itYFwEgXrImhACXDh8+I1/6Qad3IPlBLtCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T13:01:50.662981Z"},"content_sha256":"f774427bb482cb11746e82848cbf5e6e3e21511d5793e1eb488025498f786863","schema_version":"1.0","event_id":"sha256:f774427bb482cb11746e82848cbf5e6e3e21511d5793e1eb488025498f786863"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:XTN6MQAXZDICPACOHV4Z5K7PHI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Origins Space Telescope: From First Light to Life -- ESA Voyage 2050 White Paper","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.IM","authors_text":"A. Cooray, A. Karska, Ch. Pearson, D. Burgarella, D. Leisawitz, D. Rigopoulou, E. De Beck, F. Helmich, G. Melnick, I. Sakon, J. Birkby, J. Goicoechea, J.-M. Desert, J. Staguhn, L. Hunt, M. C. Wiedner, M. Gerin, M. Griffin, M. Hogerheijde, M. Meixner, M. Mikako, P. Caselli, P. Hartogh, Q. Krall, S. Aalto, T. Roellig, V. Charmandaris","submitted_at":"2020-12-04T17:25:41Z","abstract_excerpt":"The Origins Space Telescope (Origins) is one of four science and technology definition studies selected by National Aeronautics and Space Administration (NASA) in preparation of the 2020 Astronomy and Astrophysics Decadal survey in the US. Origins will trace the history of our origins from the time dust and heavy elements permanently altered the cosmic landscape to present-day life. It is designed to answer three major science questions: How do galaxies form stars, make metals, and grow their central supermassive black holes from reionization? How do the conditions for habitability develop dur"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2012.02731","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2012.02731/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":"2026-07-05T01:57:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yuw4wbk91Ue1NrRlZr4eTJlOz8ES3sd1yvf5bQRnsvOmhAbFTbO99TslpU4lqrDDKQbbp+LTpcH/kJiKO3tLDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T13:01:50.663575Z"},"content_sha256":"14c838435688e13cd2a49bf92c4ba9b872a17e76161f0b7e9b7eabce582ac071","schema_version":"1.0","event_id":"sha256:14c838435688e13cd2a49bf92c4ba9b872a17e76161f0b7e9b7eabce582ac071"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XTN6MQAXZDICPACOHV4Z5K7PHI/bundle.json","state_url":"https://pith.science/pith/XTN6MQAXZDICPACOHV4Z5K7PHI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XTN6MQAXZDICPACOHV4Z5K7PHI/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":"2026-08-06T13:01:50Z","links":{"resolver":"https://pith.science/pith/XTN6MQAXZDICPACOHV4Z5K7PHI","bundle":"https://pith.science/pith/XTN6MQAXZDICPACOHV4Z5K7PHI/bundle.json","state":"https://pith.science/pith/XTN6MQAXZDICPACOHV4Z5K7PHI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XTN6MQAXZDICPACOHV4Z5K7PHI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:XTN6MQAXZDICPACOHV4Z5K7PHI","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":"2ba9117d502c18676d4fc35721c6823fdadc0a52e31de235d4e7d3339580f43e","cross_cats_sorted":["astro-ph.GA"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2020-12-04T17:25:41Z","title_canon_sha256":"659fa60a6b0b4715eabaa289af56a14bae3f39f132285cfe559035b49cf7c768"},"schema_version":"1.0","source":{"id":"2012.02731","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2012.02731","created_at":"2026-07-05T01:57:09Z"},{"alias_kind":"arxiv_version","alias_value":"2012.02731v1","created_at":"2026-07-05T01:57:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2012.02731","created_at":"2026-07-05T01:57:09Z"},{"alias_kind":"pith_short_12","alias_value":"XTN6MQAXZDIC","created_at":"2026-07-05T01:57:09Z"},{"alias_kind":"pith_short_16","alias_value":"XTN6MQAXZDICPACO","created_at":"2026-07-05T01:57:09Z"},{"alias_kind":"pith_short_8","alias_value":"XTN6MQAX","created_at":"2026-07-05T01:57:09Z"}],"graph_snapshots":[{"event_id":"sha256:14c838435688e13cd2a49bf92c4ba9b872a17e76161f0b7e9b7eabce582ac071","target":"graph","created_at":"2026-07-05T01:57:09Z","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/2012.02731/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The Origins Space Telescope (Origins) is one of four science and technology definition studies selected by National Aeronautics and Space Administration (NASA) in preparation of the 2020 Astronomy and Astrophysics Decadal survey in the US. Origins will trace the history of our origins from the time dust and heavy elements permanently altered the cosmic landscape to present-day life. It is designed to answer three major science questions: How do galaxies form stars, make metals, and grow their central supermassive black holes from reionization? How do the conditions for habitability develop dur","authors_text":"A. Cooray, A. Karska, Ch. Pearson, D. Burgarella, D. Leisawitz, D. Rigopoulou, E. De Beck, F. Helmich, G. Melnick, I. Sakon, J. Birkby, J. Goicoechea, J.-M. Desert, J. Staguhn, L. Hunt, M. C. Wiedner, M. Gerin, M. Griffin, M. Hogerheijde, M. Meixner, M. Mikako, P. Caselli, P. Hartogh, Q. Krall, S. Aalto, T. Roellig, V. Charmandaris","cross_cats":["astro-ph.GA"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2020-12-04T17:25:41Z","title":"Origins Space Telescope: From First Light to Life -- ESA Voyage 2050 White Paper"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2012.02731","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:f774427bb482cb11746e82848cbf5e6e3e21511d5793e1eb488025498f786863","target":"record","created_at":"2026-07-05T01:57:09Z","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":"2ba9117d502c18676d4fc35721c6823fdadc0a52e31de235d4e7d3339580f43e","cross_cats_sorted":["astro-ph.GA"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2020-12-04T17:25:41Z","title_canon_sha256":"659fa60a6b0b4715eabaa289af56a14bae3f39f132285cfe559035b49cf7c768"},"schema_version":"1.0","source":{"id":"2012.02731","kind":"arxiv","version":1}},"canonical_sha256":"bcdbe64017c8d027804e3d799eabef3a10e93c75ccda0e38c932537682a40f43","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bcdbe64017c8d027804e3d799eabef3a10e93c75ccda0e38c932537682a40f43","first_computed_at":"2026-07-05T01:57:09.620617Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:57:09.620617Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0EWWt+PKF6MFj3mW+2GO2AAYiwuUc5yQi33LO5b3taL1q7umlG06Kqg15FB9BVZajb1KXFm1ayXYJ3ReqYwuBg==","signature_status":"signed_v1","signed_at":"2026-07-05T01:57:09.621109Z","signed_message":"canonical_sha256_bytes"},"source_id":"2012.02731","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f774427bb482cb11746e82848cbf5e6e3e21511d5793e1eb488025498f786863","sha256:14c838435688e13cd2a49bf92c4ba9b872a17e76161f0b7e9b7eabce582ac071"],"state_sha256":"23ccca7728543d3af6bf2c4f600119a03d24f40eb7c860fa5a88b4994251eddd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4KjUdvDIt05HcTpanihH8i06KVnono8X9tTV29W0DoQhDy/JBDHY8RUDdTY/cj7af0HpZd/+ujmWdezOYhPnCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T13:01:50.673774Z","bundle_sha256":"588b58a4b6907a7f3e3877e74fdd56fd0d8090858bbf76ae99798df3ee22dbe0"}}