{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:W25SJZFBREFY45XJKTI7VLF6LX","short_pith_number":"pith:W25SJZFB","canonical_record":{"source":{"id":"1104.2986","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-04-15T08:49:37Z","cross_cats_sorted":[],"title_canon_sha256":"5fa51d1d5934d4029179eeba4ed5e28157ff942d004102d4381add4fb55e65f2","abstract_canon_sha256":"cffac6b1f05017c33ca49dd9f2539027bd4dfed4afa91b7e857ed9efb83b64b7"},"schema_version":"1.0"},"canonical_sha256":"b6bb24e4a1890b8e76e954d1faacbe5df2a804c7825e6aa845fef3694e2d20be","source":{"kind":"arxiv","id":"1104.2986","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1104.2986","created_at":"2026-05-18T02:02:28Z"},{"alias_kind":"arxiv_version","alias_value":"1104.2986v1","created_at":"2026-05-18T02:02:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1104.2986","created_at":"2026-05-18T02:02:28Z"},{"alias_kind":"pith_short_12","alias_value":"W25SJZFBREFY","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_16","alias_value":"W25SJZFBREFY45XJ","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_8","alias_value":"W25SJZFB","created_at":"2026-05-18T12:26:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:W25SJZFBREFY45XJKTI7VLF6LX","target":"record","payload":{"canonical_record":{"source":{"id":"1104.2986","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-04-15T08:49:37Z","cross_cats_sorted":[],"title_canon_sha256":"5fa51d1d5934d4029179eeba4ed5e28157ff942d004102d4381add4fb55e65f2","abstract_canon_sha256":"cffac6b1f05017c33ca49dd9f2539027bd4dfed4afa91b7e857ed9efb83b64b7"},"schema_version":"1.0"},"canonical_sha256":"b6bb24e4a1890b8e76e954d1faacbe5df2a804c7825e6aa845fef3694e2d20be","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:02:28.279633Z","signature_b64":"jArMjFYNxEUygcLv3FFdrdAYTf0JzgyIwuZK/7J0D9wMmrU9Ep9H003LyQPcOUTgZ0JZQxHG9JCoebm67QODCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b6bb24e4a1890b8e76e954d1faacbe5df2a804c7825e6aa845fef3694e2d20be","last_reissued_at":"2026-05-18T02:02:28.278945Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:02:28.278945Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1104.2986","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":"2026-05-18T02:02:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/mcP4wTBdrONBR4VxMvLwdyHQiQEqAEpc5eTppG9XtlODlDPYVo00dzUkV7qk4vrhj5/UI524xJPYFcMUVoqCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T22:51:39.868304Z"},"content_sha256":"aac5602f460f263725e7e7a5d03cfd1256ca5d51664a4b9aa33b0ff9f1412360","schema_version":"1.0","event_id":"sha256:aac5602f460f263725e7e7a5d03cfd1256ca5d51664a4b9aa33b0ff9f1412360"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:W25SJZFBREFY45XJKTI7VLF6LX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"RACE-OC Project: Rotation and variability in the epsilon Chamaeleontis, Octans, and Argus stellar associations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A.C.Lanzafame, E.F.Guinan, M.Turatto, S.Desidera, S. Messina","submitted_at":"2011-04-15T08:49:37Z","abstract_excerpt":"We aim at determining the rotational and magnetic-related activity properties of stars at different stages of evolution. We focus our attention primarily on members of young stellar associations of known ages. Specifically, we extend our previous analysis in Paper I (Messina et al. 2010, A&A 520, A15) to 3 additional young stellar associations beyond 100 pc and with ages in the range 6-40 Myr: epsilon Chamaeleontis (~6 Myr), Octans (~20 Myr), and Argus (~40 Myr). Additional rotational data of eta Chamaeleontis and IC2391 clusters are also considered. Rotational periods were determined from pho"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1104.2986","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":"2026-05-18T02:02:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ljprwhvtt42sFSHeVcKKolqiab8wk8CKYoDJ4sVuXrDhyaO6AuCgxmmcUn28BZeT9F4S+FF7CWaphc7M3hZABQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T22:51:39.868748Z"},"content_sha256":"74c0fa19abcf70bf379d3e3104266db0b9a06a1b34585de7950957e4617960a2","schema_version":"1.0","event_id":"sha256:74c0fa19abcf70bf379d3e3104266db0b9a06a1b34585de7950957e4617960a2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/W25SJZFBREFY45XJKTI7VLF6LX/bundle.json","state_url":"https://pith.science/pith/W25SJZFBREFY45XJKTI7VLF6LX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/W25SJZFBREFY45XJKTI7VLF6LX/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":"2026-05-26T22:51:39Z","links":{"resolver":"https://pith.science/pith/W25SJZFBREFY45XJKTI7VLF6LX","bundle":"https://pith.science/pith/W25SJZFBREFY45XJKTI7VLF6LX/bundle.json","state":"https://pith.science/pith/W25SJZFBREFY45XJKTI7VLF6LX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/W25SJZFBREFY45XJKTI7VLF6LX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:W25SJZFBREFY45XJKTI7VLF6LX","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":"cffac6b1f05017c33ca49dd9f2539027bd4dfed4afa91b7e857ed9efb83b64b7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-04-15T08:49:37Z","title_canon_sha256":"5fa51d1d5934d4029179eeba4ed5e28157ff942d004102d4381add4fb55e65f2"},"schema_version":"1.0","source":{"id":"1104.2986","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1104.2986","created_at":"2026-05-18T02:02:28Z"},{"alias_kind":"arxiv_version","alias_value":"1104.2986v1","created_at":"2026-05-18T02:02:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1104.2986","created_at":"2026-05-18T02:02:28Z"},{"alias_kind":"pith_short_12","alias_value":"W25SJZFBREFY","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_16","alias_value":"W25SJZFBREFY45XJ","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_8","alias_value":"W25SJZFB","created_at":"2026-05-18T12:26:44Z"}],"graph_snapshots":[{"event_id":"sha256:74c0fa19abcf70bf379d3e3104266db0b9a06a1b34585de7950957e4617960a2","target":"graph","created_at":"2026-05-18T02:02:28Z","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":"We aim at determining the rotational and magnetic-related activity properties of stars at different stages of evolution. We focus our attention primarily on members of young stellar associations of known ages. Specifically, we extend our previous analysis in Paper I (Messina et al. 2010, A&A 520, A15) to 3 additional young stellar associations beyond 100 pc and with ages in the range 6-40 Myr: epsilon Chamaeleontis (~6 Myr), Octans (~20 Myr), and Argus (~40 Myr). Additional rotational data of eta Chamaeleontis and IC2391 clusters are also considered. Rotational periods were determined from pho","authors_text":"A.C.Lanzafame, E.F.Guinan, M.Turatto, S.Desidera, S. Messina","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-04-15T08:49:37Z","title":"RACE-OC Project: Rotation and variability in the epsilon Chamaeleontis, Octans, and Argus stellar associations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1104.2986","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:aac5602f460f263725e7e7a5d03cfd1256ca5d51664a4b9aa33b0ff9f1412360","target":"record","created_at":"2026-05-18T02:02:28Z","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":"cffac6b1f05017c33ca49dd9f2539027bd4dfed4afa91b7e857ed9efb83b64b7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-04-15T08:49:37Z","title_canon_sha256":"5fa51d1d5934d4029179eeba4ed5e28157ff942d004102d4381add4fb55e65f2"},"schema_version":"1.0","source":{"id":"1104.2986","kind":"arxiv","version":1}},"canonical_sha256":"b6bb24e4a1890b8e76e954d1faacbe5df2a804c7825e6aa845fef3694e2d20be","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b6bb24e4a1890b8e76e954d1faacbe5df2a804c7825e6aa845fef3694e2d20be","first_computed_at":"2026-05-18T02:02:28.278945Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:02:28.278945Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jArMjFYNxEUygcLv3FFdrdAYTf0JzgyIwuZK/7J0D9wMmrU9Ep9H003LyQPcOUTgZ0JZQxHG9JCoebm67QODCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:02:28.279633Z","signed_message":"canonical_sha256_bytes"},"source_id":"1104.2986","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:aac5602f460f263725e7e7a5d03cfd1256ca5d51664a4b9aa33b0ff9f1412360","sha256:74c0fa19abcf70bf379d3e3104266db0b9a06a1b34585de7950957e4617960a2"],"state_sha256":"bef265d22f62f237902cedef4865ea5f9d862cbcd7eeaeb2bd28ea691650ec4f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pVjz5ADwwq8v2zy5zubDXy5RRGdCosUxHVDf3jCCiyJdy/CYi0HP/c9VF5WYMLael9NIEkbTZB+Ef11jnpV1DQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T22:51:39.871648Z","bundle_sha256":"502be51631b5dfdd72a038c1474e18f6ef0d048134334eb6830f038e2ea795f5"}}