{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2007:2PPJXZDNCPIMFAPDZK3PDST7ZU","short_pith_number":"pith:2PPJXZDN","canonical_record":{"source":{"id":"0705.2171","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-05-15T15:52:56Z","cross_cats_sorted":[],"title_canon_sha256":"16c1b20f065e1b5a6d50732a26e15cdbee0302eab6354f0cfb5aa5f9e9a275e6","abstract_canon_sha256":"3355bf5a37bf20b5bb7fc07bc2cf165cc883653dbf9a79cba334d033d78f4837"},"schema_version":"1.0"},"canonical_sha256":"d3de9be46d13d0c281e3cab6f1ca7fcd16c6fca1b57e5f8346f327598dd66c84","source":{"kind":"arxiv","id":"0705.2171","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0705.2171","created_at":"2026-07-04T15:52:56Z"},{"alias_kind":"arxiv_version","alias_value":"0705.2171v1","created_at":"2026-07-04T15:52:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0705.2171","created_at":"2026-07-04T15:52:56Z"},{"alias_kind":"pith_short_12","alias_value":"2PPJXZDNCPIM","created_at":"2026-07-04T15:52:56Z"},{"alias_kind":"pith_short_16","alias_value":"2PPJXZDNCPIMFAPD","created_at":"2026-07-04T15:52:56Z"},{"alias_kind":"pith_short_8","alias_value":"2PPJXZDN","created_at":"2026-07-04T15:52:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2007:2PPJXZDNCPIMFAPDZK3PDST7ZU","target":"record","payload":{"canonical_record":{"source":{"id":"0705.2171","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-05-15T15:52:56Z","cross_cats_sorted":[],"title_canon_sha256":"16c1b20f065e1b5a6d50732a26e15cdbee0302eab6354f0cfb5aa5f9e9a275e6","abstract_canon_sha256":"3355bf5a37bf20b5bb7fc07bc2cf165cc883653dbf9a79cba334d033d78f4837"},"schema_version":"1.0"},"canonical_sha256":"d3de9be46d13d0c281e3cab6f1ca7fcd16c6fca1b57e5f8346f327598dd66c84","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:52:56.305668Z","signature_b64":"bdoao4WboV0rRuzhHQ4OuX5Qiwh5PA1EhtX5YpVSxd6i3nnDmQ9fzzw1m80Ms75v2U8QijVP3qbe+qRyQsOlAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d3de9be46d13d0c281e3cab6f1ca7fcd16c6fca1b57e5f8346f327598dd66c84","last_reissued_at":"2026-07-04T15:52:56.305116Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:52:56.305116Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0705.2171","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":"2026-07-04T15:52:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DbemlEpeodHnApPJ18zXYawXA0Rp/LUwf5caK2hMXLOReEfuX39qCmC2ptLAKkgACo09wS0TCzjRl5fNtpdhCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-31T15:59:53.744207Z"},"content_sha256":"5669d0229dd5c20d8008d628a4d927ca0bc8b4d8d2a1f21aa78ea21eb76d80ba","schema_version":"1.0","event_id":"sha256:5669d0229dd5c20d8008d628a4d927ca0bc8b4d8d2a1f21aa78ea21eb76d80ba"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2007:2PPJXZDNCPIMFAPDZK3PDST7ZU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Discovery of a Ringlike Dark Matter Structure in the Core of the Galaxy Cluster Cl 0024+17","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A.R. Martel, A. van der Wel, D.A. Coe, G.D. Illingworth, G.R. Meurer, H.C. Ford, J.P. Blakeslee, L.D. Bradley, M.J. Jee, N. Benitez, N.L. Homeier, R. Demarco, R.J. Bouwens, R.L. White, S. Mei, T.J. Broadhurst","submitted_at":"2007-05-15T15:52:56Z","abstract_excerpt":"We present a comprehensive mass reconstruction of the rich galaxy cluster Cl 0024+17 at z~0.4 from ACS data, unifying both strong- and weak-lensing constraints. The weak-lensing signal from a dense distribution of background galaxies (~120 per square arcmin) across the cluster enables the derivation of a high-resolution parameter-free mass map. The strongly-lensed objects tightly constrain the mass structure of the cluster inner region on an absolute scale, breaking the mass-sheet degeneracy. The mass reconstruction of Cl 0024+17 obtained in such a way is remarkable. It reveals a ringlike dark"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0705.2171","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/0705.2171/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":"2026-07-04T15:52:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BkqmStib8QCHgZE6bbAszayngW7dHh/exG9eNtj+gg8dEoi4I/23JksiSZ90H/PK6Sy2R+OHrE6dsTevtyuCBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-31T15:59:53.744561Z"},"content_sha256":"e1b2607392e7ab6d78666b2f1e02f48126260444fb2fd54efec3bb6473340a31","schema_version":"1.0","event_id":"sha256:e1b2607392e7ab6d78666b2f1e02f48126260444fb2fd54efec3bb6473340a31"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2PPJXZDNCPIMFAPDZK3PDST7ZU/bundle.json","state_url":"https://pith.science/pith/2PPJXZDNCPIMFAPDZK3PDST7ZU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2PPJXZDNCPIMFAPDZK3PDST7ZU/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":"2026-07-31T15:59:53Z","links":{"resolver":"https://pith.science/pith/2PPJXZDNCPIMFAPDZK3PDST7ZU","bundle":"https://pith.science/pith/2PPJXZDNCPIMFAPDZK3PDST7ZU/bundle.json","state":"https://pith.science/pith/2PPJXZDNCPIMFAPDZK3PDST7ZU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2PPJXZDNCPIMFAPDZK3PDST7ZU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:2PPJXZDNCPIMFAPDZK3PDST7ZU","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":"3355bf5a37bf20b5bb7fc07bc2cf165cc883653dbf9a79cba334d033d78f4837","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-05-15T15:52:56Z","title_canon_sha256":"16c1b20f065e1b5a6d50732a26e15cdbee0302eab6354f0cfb5aa5f9e9a275e6"},"schema_version":"1.0","source":{"id":"0705.2171","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0705.2171","created_at":"2026-07-04T15:52:56Z"},{"alias_kind":"arxiv_version","alias_value":"0705.2171v1","created_at":"2026-07-04T15:52:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0705.2171","created_at":"2026-07-04T15:52:56Z"},{"alias_kind":"pith_short_12","alias_value":"2PPJXZDNCPIM","created_at":"2026-07-04T15:52:56Z"},{"alias_kind":"pith_short_16","alias_value":"2PPJXZDNCPIMFAPD","created_at":"2026-07-04T15:52:56Z"},{"alias_kind":"pith_short_8","alias_value":"2PPJXZDN","created_at":"2026-07-04T15:52:56Z"}],"graph_snapshots":[{"event_id":"sha256:e1b2607392e7ab6d78666b2f1e02f48126260444fb2fd54efec3bb6473340a31","target":"graph","created_at":"2026-07-04T15:52:56Z","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/0705.2171/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present a comprehensive mass reconstruction of the rich galaxy cluster Cl 0024+17 at z~0.4 from ACS data, unifying both strong- and weak-lensing constraints. The weak-lensing signal from a dense distribution of background galaxies (~120 per square arcmin) across the cluster enables the derivation of a high-resolution parameter-free mass map. The strongly-lensed objects tightly constrain the mass structure of the cluster inner region on an absolute scale, breaking the mass-sheet degeneracy. The mass reconstruction of Cl 0024+17 obtained in such a way is remarkable. It reveals a ringlike dark","authors_text":"A.R. Martel, A. van der Wel, D.A. Coe, G.D. Illingworth, G.R. Meurer, H.C. Ford, J.P. Blakeslee, L.D. Bradley, M.J. Jee, N. Benitez, N.L. Homeier, R. Demarco, R.J. Bouwens, R.L. White, S. Mei, T.J. Broadhurst","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2007-05-15T15:52:56Z","title":"Discovery of a Ringlike Dark Matter Structure in the Core of the Galaxy Cluster Cl 0024+17"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0705.2171","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":"sha256:5669d0229dd5c20d8008d628a4d927ca0bc8b4d8d2a1f21aa78ea21eb76d80ba","target":"record","created_at":"2026-07-04T15:52:56Z","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":"3355bf5a37bf20b5bb7fc07bc2cf165cc883653dbf9a79cba334d033d78f4837","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-05-15T15:52:56Z","title_canon_sha256":"16c1b20f065e1b5a6d50732a26e15cdbee0302eab6354f0cfb5aa5f9e9a275e6"},"schema_version":"1.0","source":{"id":"0705.2171","kind":"arxiv","version":1}},"canonical_sha256":"d3de9be46d13d0c281e3cab6f1ca7fcd16c6fca1b57e5f8346f327598dd66c84","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d3de9be46d13d0c281e3cab6f1ca7fcd16c6fca1b57e5f8346f327598dd66c84","first_computed_at":"2026-07-04T15:52:56.305116Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:52:56.305116Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bdoao4WboV0rRuzhHQ4OuX5Qiwh5PA1EhtX5YpVSxd6i3nnDmQ9fzzw1m80Ms75v2U8QijVP3qbe+qRyQsOlAA==","signature_status":"signed_v1","signed_at":"2026-07-04T15:52:56.305668Z","signed_message":"canonical_sha256_bytes"},"source_id":"0705.2171","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5669d0229dd5c20d8008d628a4d927ca0bc8b4d8d2a1f21aa78ea21eb76d80ba","sha256:e1b2607392e7ab6d78666b2f1e02f48126260444fb2fd54efec3bb6473340a31"],"state_sha256":"1407ae2802b4f0bd08a16576a611eec5bd7af8bf51ea89740ed66ba5e79ab735"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rIedy0yqvlGTo6+LMhyMPjMYRQ2uHOtkuktKR05iwSZNdDaIlk3TFZnMQlqCJQPaBvUDSxxmbnp1WVNTBYr5BA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-31T15:59:53.747913Z","bundle_sha256":"112222409597bdbf0a4bfe75019ce212787ddbd226602e4129f8c30d0c8d9259"}}