{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:2HJWTVRTSX7F7SRAAX6XXXTWEH","short_pith_number":"pith:2HJWTVRT","canonical_record":{"source":{"id":"0911.1364","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-11-06T21:36:23Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"dd073eb35f4da0b4a456b86fda096ec993a6b480943e683f1f4dd7897dab3ce4","abstract_canon_sha256":"60b645f79d135f11d06dbfed71d72a6edfc13061071745cebc497e00f887db59"},"schema_version":"1.0"},"canonical_sha256":"d1d369d63395fe5fca2005fd7bde7621e9f784109777c8128028b64dd6fd99e5","source":{"kind":"arxiv","id":"0911.1364","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0911.1364","created_at":"2026-05-18T02:10:58Z"},{"alias_kind":"arxiv_version","alias_value":"0911.1364v2","created_at":"2026-05-18T02:10:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0911.1364","created_at":"2026-05-18T02:10:58Z"},{"alias_kind":"pith_short_12","alias_value":"2HJWTVRTSX7F","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"2HJWTVRTSX7F7SRA","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"2HJWTVRT","created_at":"2026-05-18T12:25:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:2HJWTVRTSX7F7SRAAX6XXXTWEH","target":"record","payload":{"canonical_record":{"source":{"id":"0911.1364","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-11-06T21:36:23Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"dd073eb35f4da0b4a456b86fda096ec993a6b480943e683f1f4dd7897dab3ce4","abstract_canon_sha256":"60b645f79d135f11d06dbfed71d72a6edfc13061071745cebc497e00f887db59"},"schema_version":"1.0"},"canonical_sha256":"d1d369d63395fe5fca2005fd7bde7621e9f784109777c8128028b64dd6fd99e5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:10:58.526848Z","signature_b64":"aZvzWI2qvRd29lSIGaKax0wbme/mmAhIzrqiCX5/uuTPWAMAIurgYgeoKuaHCIId5bokwxg4by7J3hNwcMCxAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d1d369d63395fe5fca2005fd7bde7621e9f784109777c8128028b64dd6fd99e5","last_reissued_at":"2026-05-18T02:10:58.526068Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:10:58.526068Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0911.1364","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":"2026-05-18T02:10:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"buraWzvRgaBvtROhKS4tBcieTJ9xm3hxkqD76rLlZfa2CkP3Ian/jJxaMKZfeCC6LKZWmD7uHfBDpZO0dAAqDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T16:51:52.864862Z"},"content_sha256":"19d20c67604f733be6d2ba2b892de10cc4a3adadeea5d3196d6c259b37ed9fb7","schema_version":"1.0","event_id":"sha256:19d20c67604f733be6d2ba2b892de10cc4a3adadeea5d3196d6c259b37ed9fb7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:2HJWTVRTSX7F7SRAAX6XXXTWEH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On the Fundamental Line of Galactic and Extragalactic Globular Clusters","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"Giuseppe Bertin, Mario Pasquato","submitted_at":"2009-11-06T21:36:23Z","abstract_excerpt":"In a previous paper we found that the Globular Clusters of our Galaxy lie around a line in the log(Re), SBe, log(sigma) parameter space, with a moderate degree of scatter and remarkable axi-symmetry. This implies the existence of a purely photometric scaling law obtained by projecting such a line onto the log(Re), SBe plane. Such photometric quantities are readily available for large samples of clusters, as opposed to stellar velocity dispersion data. We study a sample of 129 Galactic and extragalactic clusters on such photometric plane in the V-band. We look for a linear relation between SBe "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0911.1364","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":"2026-05-18T02:10:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kVsx3L0lv68uteVC1tfWsqOZ2m5fTNDrKqLTRDRbrNG+zx2xrBJU1PvKYi8YACzGI8+4ckOvu2+me7GMGEyVDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-09T16:51:52.865492Z"},"content_sha256":"4c6d1203712110f315856f3a5d59ca2e2c985f5f4e2079cee4333ee2104e5ee8","schema_version":"1.0","event_id":"sha256:4c6d1203712110f315856f3a5d59ca2e2c985f5f4e2079cee4333ee2104e5ee8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2HJWTVRTSX7F7SRAAX6XXXTWEH/bundle.json","state_url":"https://pith.science/pith/2HJWTVRTSX7F7SRAAX6XXXTWEH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2HJWTVRTSX7F7SRAAX6XXXTWEH/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":"2026-06-09T16:51:52Z","links":{"resolver":"https://pith.science/pith/2HJWTVRTSX7F7SRAAX6XXXTWEH","bundle":"https://pith.science/pith/2HJWTVRTSX7F7SRAAX6XXXTWEH/bundle.json","state":"https://pith.science/pith/2HJWTVRTSX7F7SRAAX6XXXTWEH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2HJWTVRTSX7F7SRAAX6XXXTWEH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:2HJWTVRTSX7F7SRAAX6XXXTWEH","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":"60b645f79d135f11d06dbfed71d72a6edfc13061071745cebc497e00f887db59","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-11-06T21:36:23Z","title_canon_sha256":"dd073eb35f4da0b4a456b86fda096ec993a6b480943e683f1f4dd7897dab3ce4"},"schema_version":"1.0","source":{"id":"0911.1364","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0911.1364","created_at":"2026-05-18T02:10:58Z"},{"alias_kind":"arxiv_version","alias_value":"0911.1364v2","created_at":"2026-05-18T02:10:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0911.1364","created_at":"2026-05-18T02:10:58Z"},{"alias_kind":"pith_short_12","alias_value":"2HJWTVRTSX7F","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"2HJWTVRTSX7F7SRA","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"2HJWTVRT","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:4c6d1203712110f315856f3a5d59ca2e2c985f5f4e2079cee4333ee2104e5ee8","target":"graph","created_at":"2026-05-18T02:10:58Z","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":"In a previous paper we found that the Globular Clusters of our Galaxy lie around a line in the log(Re), SBe, log(sigma) parameter space, with a moderate degree of scatter and remarkable axi-symmetry. This implies the existence of a purely photometric scaling law obtained by projecting such a line onto the log(Re), SBe plane. Such photometric quantities are readily available for large samples of clusters, as opposed to stellar velocity dispersion data. We study a sample of 129 Galactic and extragalactic clusters on such photometric plane in the V-band. We look for a linear relation between SBe ","authors_text":"Giuseppe Bertin, Mario Pasquato","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-11-06T21:36:23Z","title":"On the Fundamental Line of Galactic and Extragalactic Globular Clusters"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0911.1364","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":"sha256:19d20c67604f733be6d2ba2b892de10cc4a3adadeea5d3196d6c259b37ed9fb7","target":"record","created_at":"2026-05-18T02:10:58Z","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":"60b645f79d135f11d06dbfed71d72a6edfc13061071745cebc497e00f887db59","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-11-06T21:36:23Z","title_canon_sha256":"dd073eb35f4da0b4a456b86fda096ec993a6b480943e683f1f4dd7897dab3ce4"},"schema_version":"1.0","source":{"id":"0911.1364","kind":"arxiv","version":2}},"canonical_sha256":"d1d369d63395fe5fca2005fd7bde7621e9f784109777c8128028b64dd6fd99e5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d1d369d63395fe5fca2005fd7bde7621e9f784109777c8128028b64dd6fd99e5","first_computed_at":"2026-05-18T02:10:58.526068Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:10:58.526068Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"aZvzWI2qvRd29lSIGaKax0wbme/mmAhIzrqiCX5/uuTPWAMAIurgYgeoKuaHCIId5bokwxg4by7J3hNwcMCxAw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:10:58.526848Z","signed_message":"canonical_sha256_bytes"},"source_id":"0911.1364","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:19d20c67604f733be6d2ba2b892de10cc4a3adadeea5d3196d6c259b37ed9fb7","sha256:4c6d1203712110f315856f3a5d59ca2e2c985f5f4e2079cee4333ee2104e5ee8"],"state_sha256":"e1c34392d35d141f53dd574d1006420617c62faf8144d47cf7caa8cfc466a3ae"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bKB54oR1zukEvnMtwym1VPm02DpX4+aEDOa1qUWctgTru2SNIwW0kzwFyvn1WFu9RLJyTlk3JYsuYeJQO8b3AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-09T16:51:52.867809Z","bundle_sha256":"3a16883f9bb7d4cb731ffb45e1cbab8a0cf766f077ebd45fdc896cf287ebff7f"}}