{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:ULM54XXTUDS5BSEJ5NPQ3ZLOJY","short_pith_number":"pith:ULM54XXT","canonical_record":{"source":{"id":"1610.09374","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-10-28T20:00:01Z","cross_cats_sorted":[],"title_canon_sha256":"62f784104a8ef3c87f7bdcb4c6bd30b8e2fbff4e8b8e10b56a1164dc67d6aea9","abstract_canon_sha256":"f63696dd0b55ba081ea2fd9499c88976b8f8d28d2d96781fa258578c6e06ca84"},"schema_version":"1.0"},"canonical_sha256":"a2d9de5ef3a0e5d0c889eb5f0de56e4e08f43be3066a17a682e0472199075373","source":{"kind":"arxiv","id":"1610.09374","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.09374","created_at":"2026-05-18T00:53:57Z"},{"alias_kind":"arxiv_version","alias_value":"1610.09374v1","created_at":"2026-05-18T00:53:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.09374","created_at":"2026-05-18T00:53:57Z"},{"alias_kind":"pith_short_12","alias_value":"ULM54XXTUDS5","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_16","alias_value":"ULM54XXTUDS5BSEJ","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_8","alias_value":"ULM54XXT","created_at":"2026-05-18T12:30:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:ULM54XXTUDS5BSEJ5NPQ3ZLOJY","target":"record","payload":{"canonical_record":{"source":{"id":"1610.09374","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-10-28T20:00:01Z","cross_cats_sorted":[],"title_canon_sha256":"62f784104a8ef3c87f7bdcb4c6bd30b8e2fbff4e8b8e10b56a1164dc67d6aea9","abstract_canon_sha256":"f63696dd0b55ba081ea2fd9499c88976b8f8d28d2d96781fa258578c6e06ca84"},"schema_version":"1.0"},"canonical_sha256":"a2d9de5ef3a0e5d0c889eb5f0de56e4e08f43be3066a17a682e0472199075373","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:53:57.991590Z","signature_b64":"6Nk+vNTddRgA6LcYZEOQ4g20Q6wZWDYg4sFU0M5zDCS0m0qjnv9JJcp+vTSxrKfU5/enWO9vbUcSHLdkAIUMBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a2d9de5ef3a0e5d0c889eb5f0de56e4e08f43be3066a17a682e0472199075373","last_reissued_at":"2026-05-18T00:53:57.990921Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:53:57.990921Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1610.09374","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":"2026-05-18T00:53:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CU5SN4VngUncKXE4ElP5a9Ku3a0qofWJ19yDcSUiQ4Ro9NkkCLB9iBSq5bknECRipFKhdj5LgT1vSZqKkjeTDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-23T01:11:43.676839Z"},"content_sha256":"2bc5e9eab35540c58c3d79a77893c3e3dea0a4859322609009d0324aaec1fb70","schema_version":"1.0","event_id":"sha256:2bc5e9eab35540c58c3d79a77893c3e3dea0a4859322609009d0324aaec1fb70"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:ULM54XXTUDS5BSEJ5NPQ3ZLOJY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Differences in the rotational properties of multiple stellar populations in M 13: a faster rotation for the \"extreme\" chemical subpopulation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"A. L. Varri (Univ. of Edinburgh), C. A. Pilachowski (Indiana Univ.), C. I. Johnson (CfA), E. Balbinot (Univ. of Surrey), M. J. Cordero (Heidelberg Univ.), V. H\\'enault-Brunet (Radboud Univ. Nijmegen)","submitted_at":"2016-10-28T20:00:01Z","abstract_excerpt":"We use radial velocities from spectra of giants obtained with the WIYN telescope, coupled with existing chemical abundance measurements of Na and O for the same stars, to probe the presence of kinematic differences among the multiple populations of the globular cluster (GC) M13. To characterise the kinematics of various chemical subsamples, we introduce a method using Bayesian inference along with an MCMC algorithm to fit a six-parameter kinematic model (including rotation) to these subsamples. We find that the so-called \"extreme\" population (Na-enhanced and extremely O-depleted) exhibits fast"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.09374","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":"2026-05-18T00:53:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6wGMr7QRAA76KSbxD+5op+SoGRGz0aAD4oev8WXeEPDG8BWYZEplsA65LrXPSjyVcK7xLySFSKHqfnxgSj2HDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-23T01:11:43.677341Z"},"content_sha256":"44b77d88148218d2400816997a5f1c47808a26f53438c3e520cb786640eb20ea","schema_version":"1.0","event_id":"sha256:44b77d88148218d2400816997a5f1c47808a26f53438c3e520cb786640eb20ea"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ULM54XXTUDS5BSEJ5NPQ3ZLOJY/bundle.json","state_url":"https://pith.science/pith/ULM54XXTUDS5BSEJ5NPQ3ZLOJY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ULM54XXTUDS5BSEJ5NPQ3ZLOJY/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":"2026-08-23T01:11:43Z","links":{"resolver":"https://pith.science/pith/ULM54XXTUDS5BSEJ5NPQ3ZLOJY","bundle":"https://pith.science/pith/ULM54XXTUDS5BSEJ5NPQ3ZLOJY/bundle.json","state":"https://pith.science/pith/ULM54XXTUDS5BSEJ5NPQ3ZLOJY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ULM54XXTUDS5BSEJ5NPQ3ZLOJY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:ULM54XXTUDS5BSEJ5NPQ3ZLOJY","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":"f63696dd0b55ba081ea2fd9499c88976b8f8d28d2d96781fa258578c6e06ca84","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-10-28T20:00:01Z","title_canon_sha256":"62f784104a8ef3c87f7bdcb4c6bd30b8e2fbff4e8b8e10b56a1164dc67d6aea9"},"schema_version":"1.0","source":{"id":"1610.09374","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.09374","created_at":"2026-05-18T00:53:57Z"},{"alias_kind":"arxiv_version","alias_value":"1610.09374v1","created_at":"2026-05-18T00:53:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.09374","created_at":"2026-05-18T00:53:57Z"},{"alias_kind":"pith_short_12","alias_value":"ULM54XXTUDS5","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_16","alias_value":"ULM54XXTUDS5BSEJ","created_at":"2026-05-18T12:30:46Z"},{"alias_kind":"pith_short_8","alias_value":"ULM54XXT","created_at":"2026-05-18T12:30:46Z"}],"graph_snapshots":[{"event_id":"sha256:44b77d88148218d2400816997a5f1c47808a26f53438c3e520cb786640eb20ea","target":"graph","created_at":"2026-05-18T00:53:57Z","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 use radial velocities from spectra of giants obtained with the WIYN telescope, coupled with existing chemical abundance measurements of Na and O for the same stars, to probe the presence of kinematic differences among the multiple populations of the globular cluster (GC) M13. To characterise the kinematics of various chemical subsamples, we introduce a method using Bayesian inference along with an MCMC algorithm to fit a six-parameter kinematic model (including rotation) to these subsamples. We find that the so-called \"extreme\" population (Na-enhanced and extremely O-depleted) exhibits fast","authors_text":"A. L. Varri (Univ. of Edinburgh), C. A. Pilachowski (Indiana Univ.), C. I. Johnson (CfA), E. Balbinot (Univ. of Surrey), M. J. Cordero (Heidelberg Univ.), V. H\\'enault-Brunet (Radboud Univ. Nijmegen)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-10-28T20:00:01Z","title":"Differences in the rotational properties of multiple stellar populations in M 13: a faster rotation for the \"extreme\" chemical subpopulation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.09374","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":"sha256:2bc5e9eab35540c58c3d79a77893c3e3dea0a4859322609009d0324aaec1fb70","target":"record","created_at":"2026-05-18T00:53:57Z","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":"f63696dd0b55ba081ea2fd9499c88976b8f8d28d2d96781fa258578c6e06ca84","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-10-28T20:00:01Z","title_canon_sha256":"62f784104a8ef3c87f7bdcb4c6bd30b8e2fbff4e8b8e10b56a1164dc67d6aea9"},"schema_version":"1.0","source":{"id":"1610.09374","kind":"arxiv","version":1}},"canonical_sha256":"a2d9de5ef3a0e5d0c889eb5f0de56e4e08f43be3066a17a682e0472199075373","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a2d9de5ef3a0e5d0c889eb5f0de56e4e08f43be3066a17a682e0472199075373","first_computed_at":"2026-05-18T00:53:57.990921Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:53:57.990921Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6Nk+vNTddRgA6LcYZEOQ4g20Q6wZWDYg4sFU0M5zDCS0m0qjnv9JJcp+vTSxrKfU5/enWO9vbUcSHLdkAIUMBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:53:57.991590Z","signed_message":"canonical_sha256_bytes"},"source_id":"1610.09374","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2bc5e9eab35540c58c3d79a77893c3e3dea0a4859322609009d0324aaec1fb70","sha256:44b77d88148218d2400816997a5f1c47808a26f53438c3e520cb786640eb20ea"],"state_sha256":"afd2f030840b47b9be1b42912d8e3cf356e3d425a5b696d0c83ef6cc3686f7ac"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"S6mROrGfILByrZ4CeZiteifXxV4cRTL8K6M51rpRYNcXYLNCNbYFQsUPJbOHoGRehMLRmCwbrVOk/KcRWmBUBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-23T01:11:43.682117Z","bundle_sha256":"d88a4fa1911bd27c5299453b3460f16fc23e9991b9e8dda5bbf462e696515290"}}