{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:OYPMNCHEAAKTS7LY3KY4QRNMNA","short_pith_number":"pith:OYPMNCHE","canonical_record":{"source":{"id":"1007.1425","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2010-07-08T17:43:33Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"800f7d4dcd939fbcaea7383d4538cde2bf9e284dbc822e99f1c92f9057945503","abstract_canon_sha256":"d66567f0cd167fcd04b34c3feed9c2a60a4de86979ca182cfd7b3863c78af744"},"schema_version":"1.0"},"canonical_sha256":"761ec688e40015397d78dab1c845ac68013ecf38e4d2025da71d0981cb72ff49","source":{"kind":"arxiv","id":"1007.1425","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1007.1425","created_at":"2026-05-18T02:06:23Z"},{"alias_kind":"arxiv_version","alias_value":"1007.1425v1","created_at":"2026-05-18T02:06:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1007.1425","created_at":"2026-05-18T02:06:23Z"},{"alias_kind":"pith_short_12","alias_value":"OYPMNCHEAAKT","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_16","alias_value":"OYPMNCHEAAKTS7LY","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_8","alias_value":"OYPMNCHE","created_at":"2026-05-18T12:26:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:OYPMNCHEAAKTS7LY3KY4QRNMNA","target":"record","payload":{"canonical_record":{"source":{"id":"1007.1425","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2010-07-08T17:43:33Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"800f7d4dcd939fbcaea7383d4538cde2bf9e284dbc822e99f1c92f9057945503","abstract_canon_sha256":"d66567f0cd167fcd04b34c3feed9c2a60a4de86979ca182cfd7b3863c78af744"},"schema_version":"1.0"},"canonical_sha256":"761ec688e40015397d78dab1c845ac68013ecf38e4d2025da71d0981cb72ff49","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:06:23.757881Z","signature_b64":"ISXLywS1rTKfE37a3xaDhMgwdnU5zJelms+raIDqiMqIS/Xpd7E+aH2ve99nT+Lgi7SAbh6F5fBu1KTSuGXuDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"761ec688e40015397d78dab1c845ac68013ecf38e4d2025da71d0981cb72ff49","last_reissued_at":"2026-05-18T02:06:23.757283Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:06:23.757283Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1007.1425","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":"2026-05-18T02:06:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"l5Xx3pHpLv/4xlysxHU7Uxitre9HoQ2u2cnkAHGvugVTZmwXc/I3pCjX8m2qtZmCrIa96Og4/ABHLw+etNDiCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T14:54:15.391861Z"},"content_sha256":"dcb4a551dd4e594ae261362d44e970ed54c38b99b6c4ceca311990aea0217c19","schema_version":"1.0","event_id":"sha256:dcb4a551dd4e594ae261362d44e970ed54c38b99b6c4ceca311990aea0217c19"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:OYPMNCHEAAKTS7LY3KY4QRNMNA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The colour-magnitude relation of Elliptical and Lenticular galaxies in the ESO Distant Cluster Survey","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"Alfonso Aragon-Salamanca, Dennis Zaritsky, Gabriella De Lucia, Gregory Rudnick, Pascale Jablonka, Roberto Saglia, Yara L. Jaffe","submitted_at":"2010-07-08T17:43:33Z","abstract_excerpt":"We study the colour-magnitude relation (CMR) for a sample of 172 morphologically-classified E/S0 cluster galaxies from the ESO Distant Cluster Survey (EDisCS) at 0.4<z<0.8. The intrinsic colour scatter about the CMR is very small (0.076) in rest-frame U-V. Only 7% of the galaxies are significantly bluer than the CMR. The scarcity of blue S0s indicates that, if they are the descendants of spirals, these were already red when they became S0s. We observe no dependence of the CMR scatter with redshift or cluster velocity dispersion. This implies that by the time cluster E/S0s achieve their morphol"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1007.1425","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":"2026-05-18T02:06:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hWNkninGBCxrI8S8XM9pbMEY6kqyONSadejRSIb3JmWVA5UvLrrjP7NRe2gxd3kHFz5WVTxR+RimtLOVgFD3Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T14:54:15.392452Z"},"content_sha256":"828ec4aff815d30c724b86e396f0439463f9b0c3df53b5bcd5ffbfd670bb9152","schema_version":"1.0","event_id":"sha256:828ec4aff815d30c724b86e396f0439463f9b0c3df53b5bcd5ffbfd670bb9152"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OYPMNCHEAAKTS7LY3KY4QRNMNA/bundle.json","state_url":"https://pith.science/pith/OYPMNCHEAAKTS7LY3KY4QRNMNA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OYPMNCHEAAKTS7LY3KY4QRNMNA/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":"2026-06-01T14:54:15Z","links":{"resolver":"https://pith.science/pith/OYPMNCHEAAKTS7LY3KY4QRNMNA","bundle":"https://pith.science/pith/OYPMNCHEAAKTS7LY3KY4QRNMNA/bundle.json","state":"https://pith.science/pith/OYPMNCHEAAKTS7LY3KY4QRNMNA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OYPMNCHEAAKTS7LY3KY4QRNMNA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:OYPMNCHEAAKTS7LY3KY4QRNMNA","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":"d66567f0cd167fcd04b34c3feed9c2a60a4de86979ca182cfd7b3863c78af744","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2010-07-08T17:43:33Z","title_canon_sha256":"800f7d4dcd939fbcaea7383d4538cde2bf9e284dbc822e99f1c92f9057945503"},"schema_version":"1.0","source":{"id":"1007.1425","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1007.1425","created_at":"2026-05-18T02:06:23Z"},{"alias_kind":"arxiv_version","alias_value":"1007.1425v1","created_at":"2026-05-18T02:06:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1007.1425","created_at":"2026-05-18T02:06:23Z"},{"alias_kind":"pith_short_12","alias_value":"OYPMNCHEAAKT","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_16","alias_value":"OYPMNCHEAAKTS7LY","created_at":"2026-05-18T12:26:12Z"},{"alias_kind":"pith_short_8","alias_value":"OYPMNCHE","created_at":"2026-05-18T12:26:12Z"}],"graph_snapshots":[{"event_id":"sha256:828ec4aff815d30c724b86e396f0439463f9b0c3df53b5bcd5ffbfd670bb9152","target":"graph","created_at":"2026-05-18T02:06:23Z","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 study the colour-magnitude relation (CMR) for a sample of 172 morphologically-classified E/S0 cluster galaxies from the ESO Distant Cluster Survey (EDisCS) at 0.4<z<0.8. The intrinsic colour scatter about the CMR is very small (0.076) in rest-frame U-V. Only 7% of the galaxies are significantly bluer than the CMR. The scarcity of blue S0s indicates that, if they are the descendants of spirals, these were already red when they became S0s. We observe no dependence of the CMR scatter with redshift or cluster velocity dispersion. This implies that by the time cluster E/S0s achieve their morphol","authors_text":"Alfonso Aragon-Salamanca, Dennis Zaritsky, Gabriella De Lucia, Gregory Rudnick, Pascale Jablonka, Roberto Saglia, Yara L. Jaffe","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2010-07-08T17:43:33Z","title":"The colour-magnitude relation of Elliptical and Lenticular galaxies in the ESO Distant Cluster Survey"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1007.1425","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:dcb4a551dd4e594ae261362d44e970ed54c38b99b6c4ceca311990aea0217c19","target":"record","created_at":"2026-05-18T02:06:23Z","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":"d66567f0cd167fcd04b34c3feed9c2a60a4de86979ca182cfd7b3863c78af744","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2010-07-08T17:43:33Z","title_canon_sha256":"800f7d4dcd939fbcaea7383d4538cde2bf9e284dbc822e99f1c92f9057945503"},"schema_version":"1.0","source":{"id":"1007.1425","kind":"arxiv","version":1}},"canonical_sha256":"761ec688e40015397d78dab1c845ac68013ecf38e4d2025da71d0981cb72ff49","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"761ec688e40015397d78dab1c845ac68013ecf38e4d2025da71d0981cb72ff49","first_computed_at":"2026-05-18T02:06:23.757283Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:06:23.757283Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ISXLywS1rTKfE37a3xaDhMgwdnU5zJelms+raIDqiMqIS/Xpd7E+aH2ve99nT+Lgi7SAbh6F5fBu1KTSuGXuDA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:06:23.757881Z","signed_message":"canonical_sha256_bytes"},"source_id":"1007.1425","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dcb4a551dd4e594ae261362d44e970ed54c38b99b6c4ceca311990aea0217c19","sha256:828ec4aff815d30c724b86e396f0439463f9b0c3df53b5bcd5ffbfd670bb9152"],"state_sha256":"48590bc7343ab79dff6c6e23a0f964ba077b180b95ee055b6b4beddea90829dc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"k5RTZbB25UagsA2GhSQKpQFTT7gJBKdSPN1A7FNYeF2BZ8Qa1YkUKVZvDb7cAFoPc8hgZtY2EZfMo+gf8F+JCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T14:54:15.394555Z","bundle_sha256":"458bcd40c119674718a6684cbe124c04e5fd039f4bfddfb694c90d49beef350e"}}