{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:DHQIENMES7ISK22JYQQJXPYPJP","short_pith_number":"pith:DHQIENME","canonical_record":{"source":{"id":"1209.0384","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-09-03T15:25:03Z","cross_cats_sorted":[],"title_canon_sha256":"3dcaac13d2dab3db5fa34f8a0475c2376481a5c114c870450fed7a864d81bc77","abstract_canon_sha256":"356bf37175cb6987ec2986cc8f435f33a40ff31579b8a4258655a6300ef40881"},"schema_version":"1.0"},"canonical_sha256":"19e082358497d1256b49c4209bbf0f4bcf999a64a25e2c6fcc600d8f460b5872","source":{"kind":"arxiv","id":"1209.0384","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1209.0384","created_at":"2026-05-18T01:01:29Z"},{"alias_kind":"arxiv_version","alias_value":"1209.0384v2","created_at":"2026-05-18T01:01:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1209.0384","created_at":"2026-05-18T01:01:29Z"},{"alias_kind":"pith_short_12","alias_value":"DHQIENMES7IS","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_16","alias_value":"DHQIENMES7ISK22J","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_8","alias_value":"DHQIENME","created_at":"2026-05-18T12:27:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:DHQIENMES7ISK22JYQQJXPYPJP","target":"record","payload":{"canonical_record":{"source":{"id":"1209.0384","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-09-03T15:25:03Z","cross_cats_sorted":[],"title_canon_sha256":"3dcaac13d2dab3db5fa34f8a0475c2376481a5c114c870450fed7a864d81bc77","abstract_canon_sha256":"356bf37175cb6987ec2986cc8f435f33a40ff31579b8a4258655a6300ef40881"},"schema_version":"1.0"},"canonical_sha256":"19e082358497d1256b49c4209bbf0f4bcf999a64a25e2c6fcc600d8f460b5872","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:01:29.692214Z","signature_b64":"U6eQcjheF+EsFGcNCYIgWXGDrO409aZnKgQ4JkfXfkyKp1/vGfQ4z5S4ttv196CWhw8/iXBSn7oHH1ifUcrgBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"19e082358497d1256b49c4209bbf0f4bcf999a64a25e2c6fcc600d8f460b5872","last_reissued_at":"2026-05-18T01:01:29.691771Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:01:29.691771Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1209.0384","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":"2026-05-18T01:01:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kSGGB74v3+cQxIvRrJE4/lAfedEVMoiYZPqaF1wfeSOtWslsGka+WiZspacNrDsCJ3gLIKBM/OP8ERAW5OpgDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T17:40:44.440999Z"},"content_sha256":"e0217873c95efc869be2d204e0d887780ef753b1802013957a90fbcca67d2a89","schema_version":"1.0","event_id":"sha256:e0217873c95efc869be2d204e0d887780ef753b1802013957a90fbcca67d2a89"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:DHQIENMES7ISK22JYQQJXPYPJP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Bullet cluster at its best: weighing stars, gas and dark matter","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"A. Morandi, D. Paraficz, E. Jullo, Johany Martinez, J.-P. Kneib, J. Richard, M. Limousin","submitted_at":"2012-09-03T15:25:03Z","abstract_excerpt":"We present a new strong lensing mass reconstruction of the Bullet cluster (1E 0657-56) at z=0.296, based on WFC3 and ACS HST imaging and VLT/FORS2 spectroscopy. The strong lensing constraints underwent substantial revision compared to previously published analysis, there are now 14 (six new and eight previously known) multiply-imaged systems, of which three have spectroscopically confirmed redshifts (including one newly measured from this work). The reconstructed mass distribution explicitly included the combination of three mass components: i) the intra-cluster gas mass derived from X-ray obs"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1209.0384","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":""},"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":"2026-05-18T01:01:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KXvub5qRtz9PgonDbSYHzPezpAHY1DcOgWxiPWnEEThUK0acXi0wYs467bh090EZZeFlcBymZsKGY3TfjmanAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T17:40:44.441694Z"},"content_sha256":"b9cc249f3e6858f4e4bb9a8dc10e400b9effdb32f3956bbb16664c16fe183c90","schema_version":"1.0","event_id":"sha256:b9cc249f3e6858f4e4bb9a8dc10e400b9effdb32f3956bbb16664c16fe183c90"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DHQIENMES7ISK22JYQQJXPYPJP/bundle.json","state_url":"https://pith.science/pith/DHQIENMES7ISK22JYQQJXPYPJP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DHQIENMES7ISK22JYQQJXPYPJP/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":"2026-05-28T17:40:44Z","links":{"resolver":"https://pith.science/pith/DHQIENMES7ISK22JYQQJXPYPJP","bundle":"https://pith.science/pith/DHQIENMES7ISK22JYQQJXPYPJP/bundle.json","state":"https://pith.science/pith/DHQIENMES7ISK22JYQQJXPYPJP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DHQIENMES7ISK22JYQQJXPYPJP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:DHQIENMES7ISK22JYQQJXPYPJP","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":"356bf37175cb6987ec2986cc8f435f33a40ff31579b8a4258655a6300ef40881","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-09-03T15:25:03Z","title_canon_sha256":"3dcaac13d2dab3db5fa34f8a0475c2376481a5c114c870450fed7a864d81bc77"},"schema_version":"1.0","source":{"id":"1209.0384","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1209.0384","created_at":"2026-05-18T01:01:29Z"},{"alias_kind":"arxiv_version","alias_value":"1209.0384v2","created_at":"2026-05-18T01:01:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1209.0384","created_at":"2026-05-18T01:01:29Z"},{"alias_kind":"pith_short_12","alias_value":"DHQIENMES7IS","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_16","alias_value":"DHQIENMES7ISK22J","created_at":"2026-05-18T12:27:04Z"},{"alias_kind":"pith_short_8","alias_value":"DHQIENME","created_at":"2026-05-18T12:27:04Z"}],"graph_snapshots":[{"event_id":"sha256:b9cc249f3e6858f4e4bb9a8dc10e400b9effdb32f3956bbb16664c16fe183c90","target":"graph","created_at":"2026-05-18T01:01:29Z","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":"We present a new strong lensing mass reconstruction of the Bullet cluster (1E 0657-56) at z=0.296, based on WFC3 and ACS HST imaging and VLT/FORS2 spectroscopy. The strong lensing constraints underwent substantial revision compared to previously published analysis, there are now 14 (six new and eight previously known) multiply-imaged systems, of which three have spectroscopically confirmed redshifts (including one newly measured from this work). The reconstructed mass distribution explicitly included the combination of three mass components: i) the intra-cluster gas mass derived from X-ray obs","authors_text":"A. Morandi, D. Paraficz, E. Jullo, Johany Martinez, J.-P. Kneib, J. Richard, M. Limousin","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-09-03T15:25:03Z","title":"The Bullet cluster at its best: weighing stars, gas and dark matter"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1209.0384","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:e0217873c95efc869be2d204e0d887780ef753b1802013957a90fbcca67d2a89","target":"record","created_at":"2026-05-18T01:01:29Z","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":"356bf37175cb6987ec2986cc8f435f33a40ff31579b8a4258655a6300ef40881","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-09-03T15:25:03Z","title_canon_sha256":"3dcaac13d2dab3db5fa34f8a0475c2376481a5c114c870450fed7a864d81bc77"},"schema_version":"1.0","source":{"id":"1209.0384","kind":"arxiv","version":2}},"canonical_sha256":"19e082358497d1256b49c4209bbf0f4bcf999a64a25e2c6fcc600d8f460b5872","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"19e082358497d1256b49c4209bbf0f4bcf999a64a25e2c6fcc600d8f460b5872","first_computed_at":"2026-05-18T01:01:29.691771Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:01:29.691771Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"U6eQcjheF+EsFGcNCYIgWXGDrO409aZnKgQ4JkfXfkyKp1/vGfQ4z5S4ttv196CWhw8/iXBSn7oHH1ifUcrgBw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:01:29.692214Z","signed_message":"canonical_sha256_bytes"},"source_id":"1209.0384","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e0217873c95efc869be2d204e0d887780ef753b1802013957a90fbcca67d2a89","sha256:b9cc249f3e6858f4e4bb9a8dc10e400b9effdb32f3956bbb16664c16fe183c90"],"state_sha256":"f928409e46eaceac7d94cf89162aeefef559fb50200aa52cc3c5340c7d435687"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tP/b6MhcO1GU0Pt0/w/R9wf+2SxJfGOI2x5UCqXrKbZ/htRk8A37GdJbT99vIdA+hPJy/nf+dv3Y8J6DgbfoDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T17:40:44.445610Z","bundle_sha256":"1df5deb99b4373ae0d77f45c8e1c37938120103f2a64b2ef500f9edc688a54da"}}