{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:QRG5WJJHOJZGNRIXKD4CFSFZL4","short_pith_number":"pith:QRG5WJJH","canonical_record":{"source":{"id":"1709.08509","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-09-25T14:24:32Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"bed3685d3b6c6d07a6bf7636dd24c070322fb59791a6fa88453e522d9c40259e","abstract_canon_sha256":"f5fb7398d02b5f26c93557e3bdc8f07630ac3d7297656d6224a266e857e94b4f"},"schema_version":"1.0"},"canonical_sha256":"844ddb2527727266c51750f822c8b95f2a6f4e0f554924572ec9f9cd9d47e8ba","source":{"kind":"arxiv","id":"1709.08509","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.08509","created_at":"2026-05-18T00:29:28Z"},{"alias_kind":"arxiv_version","alias_value":"1709.08509v1","created_at":"2026-05-18T00:29:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.08509","created_at":"2026-05-18T00:29:28Z"},{"alias_kind":"pith_short_12","alias_value":"QRG5WJJHOJZG","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_16","alias_value":"QRG5WJJHOJZGNRIX","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_8","alias_value":"QRG5WJJH","created_at":"2026-05-18T12:31:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:QRG5WJJHOJZGNRIXKD4CFSFZL4","target":"record","payload":{"canonical_record":{"source":{"id":"1709.08509","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-09-25T14:24:32Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"bed3685d3b6c6d07a6bf7636dd24c070322fb59791a6fa88453e522d9c40259e","abstract_canon_sha256":"f5fb7398d02b5f26c93557e3bdc8f07630ac3d7297656d6224a266e857e94b4f"},"schema_version":"1.0"},"canonical_sha256":"844ddb2527727266c51750f822c8b95f2a6f4e0f554924572ec9f9cd9d47e8ba","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:29:28.642048Z","signature_b64":"vT5EmplY77Ta5ZWgk/WUo3G938OqcTbfI06+4Qsm8Nh2bvyo5OEEleoUkA521EYzlJhnLjG+FPGnHD32iNiUCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"844ddb2527727266c51750f822c8b95f2a6f4e0f554924572ec9f9cd9d47e8ba","last_reissued_at":"2026-05-18T00:29:28.641497Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:29:28.641497Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1709.08509","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":"2026-05-18T00:29:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"M76cHsMSHykxavhMYqV6uuTRI1O3ES57TEm/ajUbj125vc3Df3HS0hngN2ZBxxpN0Q52lPNFt9zcrp6Yjik/Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T18:56:43.083057Z"},"content_sha256":"b1cb7e3c73fc7029a3cdd5f0ca361270a151babcb136ab15efe77f56b2311c97","schema_version":"1.0","event_id":"sha256:b1cb7e3c73fc7029a3cdd5f0ca361270a151babcb136ab15efe77f56b2311c97"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:QRG5WJJHOJZGNRIXKD4CFSFZL4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The STREGA survey. II. Globular Cluster Palomar 12","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"A. Grado, E. Brocato, F. Getman, G. Bono, G. Iannicola, G. Raimondo, I. Ferraro, I. Musella, L. Limatola, M. Capaccioli, M. Cignoni, M. Dall'Ora, M. Di Criscienzo, M. I. Moretti, M. Marconi, M.R.L. Cioni, P. B. Stetson, P. Schipani, R. Molinaro, V. Ripepi","submitted_at":"2017-09-25T14:24:32Z","abstract_excerpt":"In the framework of the STREGA (STRucture and Evolution of the GAlaxy) survey, two fields around the globular cluster Pal 12 were observed with the aim of detecting the possible presence of streams and/or an extended halo. The adopted stellar tracers are the Main Sequence, Turn-off and Red Giant Branch stars. We discuss the lumi- nosity function and the star counts in the observed region covering about 2 tidal radii, confirming that Pal 12 appears to be embedded in the Sagittarius Stream. Adopting an original approach to separate cluster and field stars, we do not find any evidence of sig- nif"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.08509","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":"2026-05-18T00:29:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3A8Op04aPKso/INYmOc8MY5O0ZM5xKpCI+5nASfGNiGmRMEnn+jqYx0yFgURq4f6RkbE8majekEemAYlT0ISBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T18:56:43.083738Z"},"content_sha256":"cddfeb30ec8afe842696cfd6a586a6574f72d50cd4f73399e997c23691d1c157","schema_version":"1.0","event_id":"sha256:cddfeb30ec8afe842696cfd6a586a6574f72d50cd4f73399e997c23691d1c157"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QRG5WJJHOJZGNRIXKD4CFSFZL4/bundle.json","state_url":"https://pith.science/pith/QRG5WJJHOJZGNRIXKD4CFSFZL4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QRG5WJJHOJZGNRIXKD4CFSFZL4/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":"2026-05-25T18:56:43Z","links":{"resolver":"https://pith.science/pith/QRG5WJJHOJZGNRIXKD4CFSFZL4","bundle":"https://pith.science/pith/QRG5WJJHOJZGNRIXKD4CFSFZL4/bundle.json","state":"https://pith.science/pith/QRG5WJJHOJZGNRIXKD4CFSFZL4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QRG5WJJHOJZGNRIXKD4CFSFZL4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:QRG5WJJHOJZGNRIXKD4CFSFZL4","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":"f5fb7398d02b5f26c93557e3bdc8f07630ac3d7297656d6224a266e857e94b4f","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-09-25T14:24:32Z","title_canon_sha256":"bed3685d3b6c6d07a6bf7636dd24c070322fb59791a6fa88453e522d9c40259e"},"schema_version":"1.0","source":{"id":"1709.08509","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.08509","created_at":"2026-05-18T00:29:28Z"},{"alias_kind":"arxiv_version","alias_value":"1709.08509v1","created_at":"2026-05-18T00:29:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.08509","created_at":"2026-05-18T00:29:28Z"},{"alias_kind":"pith_short_12","alias_value":"QRG5WJJHOJZG","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_16","alias_value":"QRG5WJJHOJZGNRIX","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_8","alias_value":"QRG5WJJH","created_at":"2026-05-18T12:31:39Z"}],"graph_snapshots":[{"event_id":"sha256:cddfeb30ec8afe842696cfd6a586a6574f72d50cd4f73399e997c23691d1c157","target":"graph","created_at":"2026-05-18T00:29:28Z","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 the framework of the STREGA (STRucture and Evolution of the GAlaxy) survey, two fields around the globular cluster Pal 12 were observed with the aim of detecting the possible presence of streams and/or an extended halo. The adopted stellar tracers are the Main Sequence, Turn-off and Red Giant Branch stars. We discuss the lumi- nosity function and the star counts in the observed region covering about 2 tidal radii, confirming that Pal 12 appears to be embedded in the Sagittarius Stream. Adopting an original approach to separate cluster and field stars, we do not find any evidence of sig- nif","authors_text":"A. Grado, E. Brocato, F. Getman, G. Bono, G. Iannicola, G. Raimondo, I. Ferraro, I. Musella, L. Limatola, M. Capaccioli, M. Cignoni, M. Dall'Ora, M. Di Criscienzo, M. I. Moretti, M. Marconi, M.R.L. Cioni, P. B. Stetson, P. Schipani, R. Molinaro, V. Ripepi","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-09-25T14:24:32Z","title":"The STREGA survey. II. Globular Cluster Palomar 12"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.08509","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:b1cb7e3c73fc7029a3cdd5f0ca361270a151babcb136ab15efe77f56b2311c97","target":"record","created_at":"2026-05-18T00:29:28Z","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":"f5fb7398d02b5f26c93557e3bdc8f07630ac3d7297656d6224a266e857e94b4f","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-09-25T14:24:32Z","title_canon_sha256":"bed3685d3b6c6d07a6bf7636dd24c070322fb59791a6fa88453e522d9c40259e"},"schema_version":"1.0","source":{"id":"1709.08509","kind":"arxiv","version":1}},"canonical_sha256":"844ddb2527727266c51750f822c8b95f2a6f4e0f554924572ec9f9cd9d47e8ba","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"844ddb2527727266c51750f822c8b95f2a6f4e0f554924572ec9f9cd9d47e8ba","first_computed_at":"2026-05-18T00:29:28.641497Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:29:28.641497Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vT5EmplY77Ta5ZWgk/WUo3G938OqcTbfI06+4Qsm8Nh2bvyo5OEEleoUkA521EYzlJhnLjG+FPGnHD32iNiUCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:29:28.642048Z","signed_message":"canonical_sha256_bytes"},"source_id":"1709.08509","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b1cb7e3c73fc7029a3cdd5f0ca361270a151babcb136ab15efe77f56b2311c97","sha256:cddfeb30ec8afe842696cfd6a586a6574f72d50cd4f73399e997c23691d1c157"],"state_sha256":"bbdf1de98e56fdf21af73dbdc87e585cf1d4d764b335b042aa4d2e042a4c3f71"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Yls2+UPb4e4bCxCC8jWPOFiQtQ7oFtW6dJjxWaZdKNmX82PyxWc0eO0mFilaTN85ffhzEjgUGRaZvDHixJjKBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T18:56:43.087668Z","bundle_sha256":"d4d44c7968b33bbb4906c45c6149afba70ff78a791690dd46532e91c27983792"}}