{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:52WI3J5KO2S4CHEFY5CGNAVS4M","short_pith_number":"pith:52WI3J5K","canonical_record":{"source":{"id":"1406.5304","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-06-20T08:04:03Z","cross_cats_sorted":[],"title_canon_sha256":"b8d349cbe73e40c5a6997773d72396ea7acd40b5f4568790670d8416b6ccd17a","abstract_canon_sha256":"7c5ab7135e38d5e61d2ad6dae5030601427fb7e37b169191882ff65ee01284af"},"schema_version":"1.0"},"canonical_sha256":"eeac8da7aa76a5c11c85c7446682b2e32eecb6e12eeac382b981ecbf41979f4b","source":{"kind":"arxiv","id":"1406.5304","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1406.5304","created_at":"2026-05-18T01:42:52Z"},{"alias_kind":"arxiv_version","alias_value":"1406.5304v1","created_at":"2026-05-18T01:42:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1406.5304","created_at":"2026-05-18T01:42:52Z"},{"alias_kind":"pith_short_12","alias_value":"52WI3J5KO2S4","created_at":"2026-05-18T12:28:14Z"},{"alias_kind":"pith_short_16","alias_value":"52WI3J5KO2S4CHEF","created_at":"2026-05-18T12:28:14Z"},{"alias_kind":"pith_short_8","alias_value":"52WI3J5K","created_at":"2026-05-18T12:28:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:52WI3J5KO2S4CHEFY5CGNAVS4M","target":"record","payload":{"canonical_record":{"source":{"id":"1406.5304","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-06-20T08:04:03Z","cross_cats_sorted":[],"title_canon_sha256":"b8d349cbe73e40c5a6997773d72396ea7acd40b5f4568790670d8416b6ccd17a","abstract_canon_sha256":"7c5ab7135e38d5e61d2ad6dae5030601427fb7e37b169191882ff65ee01284af"},"schema_version":"1.0"},"canonical_sha256":"eeac8da7aa76a5c11c85c7446682b2e32eecb6e12eeac382b981ecbf41979f4b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:42:52.609520Z","signature_b64":"7SbmiQmAVV2Fx9pVG++zuLPEKXu1wzkdmdx6Fz0ru7BuJ0Bs1e9DmAFJHOuB9vHHgVl8REhfnTJS66SMVEjZBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"eeac8da7aa76a5c11c85c7446682b2e32eecb6e12eeac382b981ecbf41979f4b","last_reissued_at":"2026-05-18T01:42:52.608893Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:42:52.608893Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1406.5304","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":"2026-05-18T01:42:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Hs5IBwTNYpODyJPXHkk0H8+Z2Vh1UTEZtXHdxxgd+LikYv/M72hBjdChnCBAVFQqilWOV0b9xm+6IIRxdFGiBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T06:48:43.489543Z"},"content_sha256":"e9f1993e7208802d48c507ff3dfd21295cd90e5585d7f1580057fba109a43c35","schema_version":"1.0","event_id":"sha256:e9f1993e7208802d48c507ff3dfd21295cd90e5585d7f1580057fba109a43c35"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:52WI3J5KO2S4CHEFY5CGNAVS4M","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A probable pre-main sequence chemically peculiar star in the open cluster Stock 16","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"E. Paunzen, K. Zwintz, L. Fossati, M. Netopil, O.I. Pintado, S. Bagnulo","submitted_at":"2014-06-20T08:04:03Z","abstract_excerpt":"We used the Ultraviolet and Visual Echelle Spectrograph of the ESO-Very Large Telescope to obtain a high resolution and high signal-to-noise ratio spectrum of Stock 16-12, an early-type star which previous Delta-a photometric observations suggest being a chemically peculiar (CP) star. We used spectral synthesis to perform a detailed abundance analysis obtaining an effective temperature of 8400 +/- 400 K, a surface gravity of 4.1 +/- 0.4, a microturbulence velocity of 3.4 +0.7/-0.3 km/s, and a projected rotational velocity of 68 +/- 4 km/s. We provide photometric and spectroscopic evidence show"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1406.5304","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":"2026-05-18T01:42:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Tv60/ShJM4sgON66oftmqO6TGvkQeorcVmuvUbBMRGlZkL2NHPXV74KWOUCK4Z0+MYnlPzP3XXw6TGosJTkLBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T06:48:43.489895Z"},"content_sha256":"993e3cb1a17dbc4cd962b04e93a328ad259a75e28aca68df04933c8add431711","schema_version":"1.0","event_id":"sha256:993e3cb1a17dbc4cd962b04e93a328ad259a75e28aca68df04933c8add431711"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/52WI3J5KO2S4CHEFY5CGNAVS4M/bundle.json","state_url":"https://pith.science/pith/52WI3J5KO2S4CHEFY5CGNAVS4M/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/52WI3J5KO2S4CHEFY5CGNAVS4M/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":"2026-05-28T06:48:43Z","links":{"resolver":"https://pith.science/pith/52WI3J5KO2S4CHEFY5CGNAVS4M","bundle":"https://pith.science/pith/52WI3J5KO2S4CHEFY5CGNAVS4M/bundle.json","state":"https://pith.science/pith/52WI3J5KO2S4CHEFY5CGNAVS4M/state.json","well_known_bundle":"https://pith.science/.well-known/pith/52WI3J5KO2S4CHEFY5CGNAVS4M/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:52WI3J5KO2S4CHEFY5CGNAVS4M","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":"7c5ab7135e38d5e61d2ad6dae5030601427fb7e37b169191882ff65ee01284af","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-06-20T08:04:03Z","title_canon_sha256":"b8d349cbe73e40c5a6997773d72396ea7acd40b5f4568790670d8416b6ccd17a"},"schema_version":"1.0","source":{"id":"1406.5304","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1406.5304","created_at":"2026-05-18T01:42:52Z"},{"alias_kind":"arxiv_version","alias_value":"1406.5304v1","created_at":"2026-05-18T01:42:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1406.5304","created_at":"2026-05-18T01:42:52Z"},{"alias_kind":"pith_short_12","alias_value":"52WI3J5KO2S4","created_at":"2026-05-18T12:28:14Z"},{"alias_kind":"pith_short_16","alias_value":"52WI3J5KO2S4CHEF","created_at":"2026-05-18T12:28:14Z"},{"alias_kind":"pith_short_8","alias_value":"52WI3J5K","created_at":"2026-05-18T12:28:14Z"}],"graph_snapshots":[{"event_id":"sha256:993e3cb1a17dbc4cd962b04e93a328ad259a75e28aca68df04933c8add431711","target":"graph","created_at":"2026-05-18T01:42:52Z","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 used the Ultraviolet and Visual Echelle Spectrograph of the ESO-Very Large Telescope to obtain a high resolution and high signal-to-noise ratio spectrum of Stock 16-12, an early-type star which previous Delta-a photometric observations suggest being a chemically peculiar (CP) star. We used spectral synthesis to perform a detailed abundance analysis obtaining an effective temperature of 8400 +/- 400 K, a surface gravity of 4.1 +/- 0.4, a microturbulence velocity of 3.4 +0.7/-0.3 km/s, and a projected rotational velocity of 68 +/- 4 km/s. We provide photometric and spectroscopic evidence show","authors_text":"E. Paunzen, K. Zwintz, L. Fossati, M. Netopil, O.I. Pintado, S. Bagnulo","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-06-20T08:04:03Z","title":"A probable pre-main sequence chemically peculiar star in the open cluster Stock 16"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1406.5304","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:e9f1993e7208802d48c507ff3dfd21295cd90e5585d7f1580057fba109a43c35","target":"record","created_at":"2026-05-18T01:42:52Z","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":"7c5ab7135e38d5e61d2ad6dae5030601427fb7e37b169191882ff65ee01284af","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-06-20T08:04:03Z","title_canon_sha256":"b8d349cbe73e40c5a6997773d72396ea7acd40b5f4568790670d8416b6ccd17a"},"schema_version":"1.0","source":{"id":"1406.5304","kind":"arxiv","version":1}},"canonical_sha256":"eeac8da7aa76a5c11c85c7446682b2e32eecb6e12eeac382b981ecbf41979f4b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"eeac8da7aa76a5c11c85c7446682b2e32eecb6e12eeac382b981ecbf41979f4b","first_computed_at":"2026-05-18T01:42:52.608893Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:42:52.608893Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7SbmiQmAVV2Fx9pVG++zuLPEKXu1wzkdmdx6Fz0ru7BuJ0Bs1e9DmAFJHOuB9vHHgVl8REhfnTJS66SMVEjZBA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:42:52.609520Z","signed_message":"canonical_sha256_bytes"},"source_id":"1406.5304","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e9f1993e7208802d48c507ff3dfd21295cd90e5585d7f1580057fba109a43c35","sha256:993e3cb1a17dbc4cd962b04e93a328ad259a75e28aca68df04933c8add431711"],"state_sha256":"4df8fba5fca01b6d5a0b59b1e7fb2d81cebae7b96c351d830722eb9e4229c16d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ISIacNrNTmHWFz2D6OzGbqdaApaGEix71qguuOsv2b+oQjwPnFeRAInMwYFvgVUm/8qTmuv3dhemmMQ11ZItCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T06:48:43.491906Z","bundle_sha256":"d7bedb7a539ba4da9a07e79686d8dc12d13c7df6ca1c79c3109273ec377f8d33"}}