{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:V3R2LV4TTY3LV3ZDUI4QQGFXU6","short_pith_number":"pith:V3R2LV4T","canonical_record":{"source":{"id":"1212.4419","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-12-18T16:40:33Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"ecf4f544f5d941f50146a48ad3f3780f81ac6179b0c6f5f7f0c1684158f7b01a","abstract_canon_sha256":"4e2ca61e6b7aa7fb0edad1379b17e2e8f27a335913dd45082fb4cb62f050327c"},"schema_version":"1.0"},"canonical_sha256":"aee3a5d7939e36baef23a2390818b7a7a27db0bfcdc656a36da4123abc5d0280","source":{"kind":"arxiv","id":"1212.4419","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1212.4419","created_at":"2026-05-18T01:52:30Z"},{"alias_kind":"arxiv_version","alias_value":"1212.4419v1","created_at":"2026-05-18T01:52:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1212.4419","created_at":"2026-05-18T01:52:30Z"},{"alias_kind":"pith_short_12","alias_value":"V3R2LV4TTY3L","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_16","alias_value":"V3R2LV4TTY3LV3ZD","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_8","alias_value":"V3R2LV4T","created_at":"2026-05-18T12:27:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:V3R2LV4TTY3LV3ZDUI4QQGFXU6","target":"record","payload":{"canonical_record":{"source":{"id":"1212.4419","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-12-18T16:40:33Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"ecf4f544f5d941f50146a48ad3f3780f81ac6179b0c6f5f7f0c1684158f7b01a","abstract_canon_sha256":"4e2ca61e6b7aa7fb0edad1379b17e2e8f27a335913dd45082fb4cb62f050327c"},"schema_version":"1.0"},"canonical_sha256":"aee3a5d7939e36baef23a2390818b7a7a27db0bfcdc656a36da4123abc5d0280","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:52:30.916891Z","signature_b64":"lWTsLOv7vmZP6qAw9MHIreSbIfiewk5J5GNWxhN78zSkCRQOFf7mPA6y/Heo+hJZAmGXeleVA1sv5JGad133DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"aee3a5d7939e36baef23a2390818b7a7a27db0bfcdc656a36da4123abc5d0280","last_reissued_at":"2026-05-18T01:52:30.916199Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:52:30.916199Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1212.4419","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":"2026-05-18T01:52:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DBUV+VtoXS2WbpmZX9wR0gSvukpIfCgdastUUqkfgJ/C/Etcls/PpZzEWjfHbS1LfFzuKoVWPKPmrbjqKOqZBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T09:21:03.348236Z"},"content_sha256":"7141b73ef6880e5d59f08bb609f4b242be580283a47ed46524523b6247620ab6","schema_version":"1.0","event_id":"sha256:7141b73ef6880e5d59f08bb609f4b242be580283a47ed46524523b6247620ab6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:V3R2LV4TTY3LV3ZDUI4QQGFXU6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Horizontal Branch in the UV Colour Magnitude Diagrams. II. The case of M3, M13 and M79","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"Alessio Mucciarelli, Emanuele Dalessandro, Francesco R. Ferraro, Maurizio Salaris, Santi Cassisi","submitted_at":"2012-12-18T16:40:33Z","abstract_excerpt":"We present a detailed comparison between far-UV/optical colour Magnitude Diagrams obtained with high-resolution Hubble Space Telescope data and suitable theoretical models for three Galactic Globular Clusters: M3, M13 and M79. These systems represents a classical example of clusters in the intermediate metallicity regime that, even sharing similar metal content and age, show remarkably different Horizontal Branch morphologies. As a consequence, the observed differences in the colour distributions of Horizontal Branch stars cannot be interpreted in terms of either first (metallicity) or a secon"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1212.4419","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":"2026-05-18T01:52:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BVxS9kuJOC5uR1nK6xCpeK//ZPoB7gyhkRndBhTb25PW9NDlHu/6hK8VfXHu7jcCR+Bku2OjCiRL+yNsFNUtDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T09:21:03.348645Z"},"content_sha256":"76abfcea62e79853d49b1b5a6ba70bfea179f9a69701f1d7de8d5e68466903ab","schema_version":"1.0","event_id":"sha256:76abfcea62e79853d49b1b5a6ba70bfea179f9a69701f1d7de8d5e68466903ab"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/V3R2LV4TTY3LV3ZDUI4QQGFXU6/bundle.json","state_url":"https://pith.science/pith/V3R2LV4TTY3LV3ZDUI4QQGFXU6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/V3R2LV4TTY3LV3ZDUI4QQGFXU6/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":"2026-05-30T09:21:03Z","links":{"resolver":"https://pith.science/pith/V3R2LV4TTY3LV3ZDUI4QQGFXU6","bundle":"https://pith.science/pith/V3R2LV4TTY3LV3ZDUI4QQGFXU6/bundle.json","state":"https://pith.science/pith/V3R2LV4TTY3LV3ZDUI4QQGFXU6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/V3R2LV4TTY3LV3ZDUI4QQGFXU6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:V3R2LV4TTY3LV3ZDUI4QQGFXU6","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":"4e2ca61e6b7aa7fb0edad1379b17e2e8f27a335913dd45082fb4cb62f050327c","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-12-18T16:40:33Z","title_canon_sha256":"ecf4f544f5d941f50146a48ad3f3780f81ac6179b0c6f5f7f0c1684158f7b01a"},"schema_version":"1.0","source":{"id":"1212.4419","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1212.4419","created_at":"2026-05-18T01:52:30Z"},{"alias_kind":"arxiv_version","alias_value":"1212.4419v1","created_at":"2026-05-18T01:52:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1212.4419","created_at":"2026-05-18T01:52:30Z"},{"alias_kind":"pith_short_12","alias_value":"V3R2LV4TTY3L","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_16","alias_value":"V3R2LV4TTY3LV3ZD","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_8","alias_value":"V3R2LV4T","created_at":"2026-05-18T12:27:25Z"}],"graph_snapshots":[{"event_id":"sha256:76abfcea62e79853d49b1b5a6ba70bfea179f9a69701f1d7de8d5e68466903ab","target":"graph","created_at":"2026-05-18T01:52:30Z","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 detailed comparison between far-UV/optical colour Magnitude Diagrams obtained with high-resolution Hubble Space Telescope data and suitable theoretical models for three Galactic Globular Clusters: M3, M13 and M79. These systems represents a classical example of clusters in the intermediate metallicity regime that, even sharing similar metal content and age, show remarkably different Horizontal Branch morphologies. As a consequence, the observed differences in the colour distributions of Horizontal Branch stars cannot be interpreted in terms of either first (metallicity) or a secon","authors_text":"Alessio Mucciarelli, Emanuele Dalessandro, Francesco R. Ferraro, Maurizio Salaris, Santi Cassisi","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-12-18T16:40:33Z","title":"The Horizontal Branch in the UV Colour Magnitude Diagrams. II. The case of M3, M13 and M79"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1212.4419","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":"sha256:7141b73ef6880e5d59f08bb609f4b242be580283a47ed46524523b6247620ab6","target":"record","created_at":"2026-05-18T01:52:30Z","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":"4e2ca61e6b7aa7fb0edad1379b17e2e8f27a335913dd45082fb4cb62f050327c","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-12-18T16:40:33Z","title_canon_sha256":"ecf4f544f5d941f50146a48ad3f3780f81ac6179b0c6f5f7f0c1684158f7b01a"},"schema_version":"1.0","source":{"id":"1212.4419","kind":"arxiv","version":1}},"canonical_sha256":"aee3a5d7939e36baef23a2390818b7a7a27db0bfcdc656a36da4123abc5d0280","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"aee3a5d7939e36baef23a2390818b7a7a27db0bfcdc656a36da4123abc5d0280","first_computed_at":"2026-05-18T01:52:30.916199Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:52:30.916199Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lWTsLOv7vmZP6qAw9MHIreSbIfiewk5J5GNWxhN78zSkCRQOFf7mPA6y/Heo+hJZAmGXeleVA1sv5JGad133DA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:52:30.916891Z","signed_message":"canonical_sha256_bytes"},"source_id":"1212.4419","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7141b73ef6880e5d59f08bb609f4b242be580283a47ed46524523b6247620ab6","sha256:76abfcea62e79853d49b1b5a6ba70bfea179f9a69701f1d7de8d5e68466903ab"],"state_sha256":"3f7036af924907b257d1fd731384b014988172760c35a4f24abf6b0de574a498"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AmQB8SDvbXxzb5WLjxWEiA+kGQT0aCvczG4xo1GEt6j1pH3dZvKkSd8gh/HLhFyLWa2z7c3rsvZwKz1RHN9aDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T09:21:03.350932Z","bundle_sha256":"d2cab2dc6faee8d3c22bdb062e38598d08e577954313cc365bb25354d0a90f21"}}