{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:3FB3JEOIJLMBIOUPEUCX6LCNV7","short_pith_number":"pith:3FB3JEOI","canonical_record":{"source":{"id":"1003.1961","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"astro-ph.HE","submitted_at":"2010-03-09T19:33:06Z","cross_cats_sorted":[],"title_canon_sha256":"1f6a8b0a3dec0debb58f672a1623d27338c80a065edd3c1346bae7605dcd3603","abstract_canon_sha256":"5cfffe5cdad0c76e6ba09fb7c776460c77d0ed1b4e9ac3d53cdb2c958d931117"},"schema_version":"1.0"},"canonical_sha256":"d943b491c84ad8143a8f25057f2c4dafd895b67f97041f0e9853cb223be8ac6d","source":{"kind":"arxiv","id":"1003.1961","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1003.1961","created_at":"2026-05-18T01:36:57Z"},{"alias_kind":"arxiv_version","alias_value":"1003.1961v1","created_at":"2026-05-18T01:36:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1003.1961","created_at":"2026-05-18T01:36:57Z"},{"alias_kind":"pith_short_12","alias_value":"3FB3JEOIJLMB","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_16","alias_value":"3FB3JEOIJLMBIOUP","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_8","alias_value":"3FB3JEOI","created_at":"2026-05-18T12:26:03Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:3FB3JEOIJLMBIOUPEUCX6LCNV7","target":"record","payload":{"canonical_record":{"source":{"id":"1003.1961","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"astro-ph.HE","submitted_at":"2010-03-09T19:33:06Z","cross_cats_sorted":[],"title_canon_sha256":"1f6a8b0a3dec0debb58f672a1623d27338c80a065edd3c1346bae7605dcd3603","abstract_canon_sha256":"5cfffe5cdad0c76e6ba09fb7c776460c77d0ed1b4e9ac3d53cdb2c958d931117"},"schema_version":"1.0"},"canonical_sha256":"d943b491c84ad8143a8f25057f2c4dafd895b67f97041f0e9853cb223be8ac6d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:36:57.227526Z","signature_b64":"5Rb28K5mf5Y5526Po9erU7JOxs3XY/RulLzNXx6YdmCybJD6BCTkzDFrfFahzIEmkFRrc9gWGVRDYZADz8v1Dw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d943b491c84ad8143a8f25057f2c4dafd895b67f97041f0e9853cb223be8ac6d","last_reissued_at":"2026-05-18T01:36:57.226902Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:36:57.226902Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1003.1961","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":"2026-05-18T01:36:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dvuN9dQpWIpGseWKe+e4Ly5kABDvbu8ZumgnE4QaMG2zQ5sRTlQIcgKHljEvELGWgyPPbKI3lhV5GGrTh5gnAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T03:58:03.977888Z"},"content_sha256":"6ffa2be1ca807ed4bd3afabd73605a68fdd9e4bd5e115fa127c415de0651a985","schema_version":"1.0","event_id":"sha256:6ffa2be1ca807ed4bd3afabd73605a68fdd9e4bd5e115fa127c415de0651a985"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:3FB3JEOIJLMBIOUPEUCX6LCNV7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The First Decade of Science with Chandra and XMM-Newton","license":"http://creativecommons.org/licenses/publicdomain/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Harvey Tananbaum, Maria Santos-Lleo, Martin C. Weisskopf, Norbert Schartel, Wallace Tucker","submitted_at":"2010-03-09T19:33:06Z","abstract_excerpt":"NASA's Chandra X-ray Observatory and ESA's XMM-Newton made their first observations one decade ago. The unprecedented and complementary capabilities of these observatories to detect, image, and measure the energy of cosmic X-rays, achieved less than 50 years after the first detection of an extra-solar X-ray source,  represent an increase in sensitivity comparable in going from naked-eye observations to the most powerful optical telescopes over the past 400 years! In this review, we highlight some of the many discoveries made by Chandra and XMM-Newton that have transformed 21st century astronom"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1003.1961","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":"2026-05-18T01:36:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Xdnfx6ncBj4EQfQyUc97KSKEdYYmrsApjiCvSTB4C6cmVj00ouzn3yVB8nOfp2NCVOu3WQP1WBLLUockNdcnBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T03:58:03.978549Z"},"content_sha256":"d82ea305840f7bb8fd1dfec04286802bec8771a7d78f64bae9ad3c39081deb18","schema_version":"1.0","event_id":"sha256:d82ea305840f7bb8fd1dfec04286802bec8771a7d78f64bae9ad3c39081deb18"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3FB3JEOIJLMBIOUPEUCX6LCNV7/bundle.json","state_url":"https://pith.science/pith/3FB3JEOIJLMBIOUPEUCX6LCNV7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3FB3JEOIJLMBIOUPEUCX6LCNV7/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":"2026-05-26T03:58:03Z","links":{"resolver":"https://pith.science/pith/3FB3JEOIJLMBIOUPEUCX6LCNV7","bundle":"https://pith.science/pith/3FB3JEOIJLMBIOUPEUCX6LCNV7/bundle.json","state":"https://pith.science/pith/3FB3JEOIJLMBIOUPEUCX6LCNV7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3FB3JEOIJLMBIOUPEUCX6LCNV7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:3FB3JEOIJLMBIOUPEUCX6LCNV7","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":"5cfffe5cdad0c76e6ba09fb7c776460c77d0ed1b4e9ac3d53cdb2c958d931117","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"astro-ph.HE","submitted_at":"2010-03-09T19:33:06Z","title_canon_sha256":"1f6a8b0a3dec0debb58f672a1623d27338c80a065edd3c1346bae7605dcd3603"},"schema_version":"1.0","source":{"id":"1003.1961","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1003.1961","created_at":"2026-05-18T01:36:57Z"},{"alias_kind":"arxiv_version","alias_value":"1003.1961v1","created_at":"2026-05-18T01:36:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1003.1961","created_at":"2026-05-18T01:36:57Z"},{"alias_kind":"pith_short_12","alias_value":"3FB3JEOIJLMB","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_16","alias_value":"3FB3JEOIJLMBIOUP","created_at":"2026-05-18T12:26:03Z"},{"alias_kind":"pith_short_8","alias_value":"3FB3JEOI","created_at":"2026-05-18T12:26:03Z"}],"graph_snapshots":[{"event_id":"sha256:d82ea305840f7bb8fd1dfec04286802bec8771a7d78f64bae9ad3c39081deb18","target":"graph","created_at":"2026-05-18T01:36:57Z","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":"NASA's Chandra X-ray Observatory and ESA's XMM-Newton made their first observations one decade ago. The unprecedented and complementary capabilities of these observatories to detect, image, and measure the energy of cosmic X-rays, achieved less than 50 years after the first detection of an extra-solar X-ray source,  represent an increase in sensitivity comparable in going from naked-eye observations to the most powerful optical telescopes over the past 400 years! In this review, we highlight some of the many discoveries made by Chandra and XMM-Newton that have transformed 21st century astronom","authors_text":"Harvey Tananbaum, Maria Santos-Lleo, Martin C. Weisskopf, Norbert Schartel, Wallace Tucker","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"astro-ph.HE","submitted_at":"2010-03-09T19:33:06Z","title":"The First Decade of Science with Chandra and XMM-Newton"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1003.1961","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":"sha256:6ffa2be1ca807ed4bd3afabd73605a68fdd9e4bd5e115fa127c415de0651a985","target":"record","created_at":"2026-05-18T01:36:57Z","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":"5cfffe5cdad0c76e6ba09fb7c776460c77d0ed1b4e9ac3d53cdb2c958d931117","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"astro-ph.HE","submitted_at":"2010-03-09T19:33:06Z","title_canon_sha256":"1f6a8b0a3dec0debb58f672a1623d27338c80a065edd3c1346bae7605dcd3603"},"schema_version":"1.0","source":{"id":"1003.1961","kind":"arxiv","version":1}},"canonical_sha256":"d943b491c84ad8143a8f25057f2c4dafd895b67f97041f0e9853cb223be8ac6d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d943b491c84ad8143a8f25057f2c4dafd895b67f97041f0e9853cb223be8ac6d","first_computed_at":"2026-05-18T01:36:57.226902Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:36:57.226902Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5Rb28K5mf5Y5526Po9erU7JOxs3XY/RulLzNXx6YdmCybJD6BCTkzDFrfFahzIEmkFRrc9gWGVRDYZADz8v1Dw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:36:57.227526Z","signed_message":"canonical_sha256_bytes"},"source_id":"1003.1961","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6ffa2be1ca807ed4bd3afabd73605a68fdd9e4bd5e115fa127c415de0651a985","sha256:d82ea305840f7bb8fd1dfec04286802bec8771a7d78f64bae9ad3c39081deb18"],"state_sha256":"bb2ca402bd9e131f0d67616d331a0c79c61226e0acc63b932865ab6869cafc67"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2211Ma0sZfQQJCU2LSH0O2Z5Rbr+lQl9Wgt80arVhevV0AOOzf9JEvaAnL20temTROaqh7sQhgqb8kzY9iGYDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T03:58:03.981820Z","bundle_sha256":"5bbb4e94f031f9428416cd0cf91bb8f925f5c49479ddfb3aa51e5efd9c5ce864"}}