{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:MIVFEEWQPNUHT34OCUZOIXTPIJ","short_pith_number":"pith:MIVFEEWQ","canonical_record":{"source":{"id":"1705.03312","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-05-09T13:21:10Z","cross_cats_sorted":[],"title_canon_sha256":"ec5ccd251f5f7e7fe90cdf4981e749c55971dfabb5ff23deca8aea979e476091","abstract_canon_sha256":"414c1caf585f20fdd620405ea76eb0fdeffd219a6e26bb38d7ecf1d038a10542"},"schema_version":"1.0"},"canonical_sha256":"622a5212d07b6879ef8e1532e45e6f424ab5f69df2848d58f7d4ad301b5cd0ae","source":{"kind":"arxiv","id":"1705.03312","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.03312","created_at":"2026-05-18T00:40:29Z"},{"alias_kind":"arxiv_version","alias_value":"1705.03312v1","created_at":"2026-05-18T00:40:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.03312","created_at":"2026-05-18T00:40:29Z"},{"alias_kind":"pith_short_12","alias_value":"MIVFEEWQPNUH","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_16","alias_value":"MIVFEEWQPNUHT34O","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_8","alias_value":"MIVFEEWQ","created_at":"2026-05-18T12:31:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:MIVFEEWQPNUHT34OCUZOIXTPIJ","target":"record","payload":{"canonical_record":{"source":{"id":"1705.03312","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-05-09T13:21:10Z","cross_cats_sorted":[],"title_canon_sha256":"ec5ccd251f5f7e7fe90cdf4981e749c55971dfabb5ff23deca8aea979e476091","abstract_canon_sha256":"414c1caf585f20fdd620405ea76eb0fdeffd219a6e26bb38d7ecf1d038a10542"},"schema_version":"1.0"},"canonical_sha256":"622a5212d07b6879ef8e1532e45e6f424ab5f69df2848d58f7d4ad301b5cd0ae","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:40:29.966855Z","signature_b64":"rZGVd5eudppZGr0MnCgN30OoxPE6YqCnP+Q/ZW2+Tgeg0K/o1963N4GgS43nKfs9MdRZiM2PuOWmdhRuXLsrDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"622a5212d07b6879ef8e1532e45e6f424ab5f69df2848d58f7d4ad301b5cd0ae","last_reissued_at":"2026-05-18T00:40:29.966470Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:40:29.966470Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1705.03312","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":"2026-05-18T00:40:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"D2c19o3L5JSmFNyTe/T4ROQa4rGOBCt06kClPzehRDnJ5IBRtFLOfVxQWR0iDm1ilGhcqbmuH7QI3Vgznxm7AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T18:42:19.876451Z"},"content_sha256":"01122ba6aa3aa39deabf9a8f1023cdcbf9d7adfd7f55487264b288e60bd378cb","schema_version":"1.0","event_id":"sha256:01122ba6aa3aa39deabf9a8f1023cdcbf9d7adfd7f55487264b288e60bd378cb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:MIVFEEWQPNUHT34OCUZOIXTPIJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Evidence for photometric activity cycles in 3203 Kepler stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Laurent Gizon, Robert H. Cameron, Timo Reinhold","submitted_at":"2017-05-09T13:21:10Z","abstract_excerpt":"In recent years it has been claimed that the length of stellar activity cycles is determined by the stellar rotation rate. It is observed that the cycle period increases with rotation period along the so-called active and inactive sequences. In this picture the Sun occupies a solitary position in between the two sequences. Our goal is to measure cyclic variations of the stellar light curve amplitude and the rotation period using four years of Kepler data. Periodic changes of the light curve amplitude or the stellar rotation period are associated with an underlying activity cycle. Using the McQ"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.03312","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":"2026-05-18T00:40:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LOvRuxqEC8ACmPH6RNaxW3YKh1I5XSRRL7gD/eZ9Nyq79kymFAf7Do2tngqSxZ8WjNfuiDLxBKhD8o87NTtiCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T18:42:19.876797Z"},"content_sha256":"628e68a1294a9ab63aebc062766a6aae4fb08d4c05bf0e49476319a006d388b1","schema_version":"1.0","event_id":"sha256:628e68a1294a9ab63aebc062766a6aae4fb08d4c05bf0e49476319a006d388b1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MIVFEEWQPNUHT34OCUZOIXTPIJ/bundle.json","state_url":"https://pith.science/pith/MIVFEEWQPNUHT34OCUZOIXTPIJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MIVFEEWQPNUHT34OCUZOIXTPIJ/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":"2026-05-20T18:42:19Z","links":{"resolver":"https://pith.science/pith/MIVFEEWQPNUHT34OCUZOIXTPIJ","bundle":"https://pith.science/pith/MIVFEEWQPNUHT34OCUZOIXTPIJ/bundle.json","state":"https://pith.science/pith/MIVFEEWQPNUHT34OCUZOIXTPIJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MIVFEEWQPNUHT34OCUZOIXTPIJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:MIVFEEWQPNUHT34OCUZOIXTPIJ","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":"414c1caf585f20fdd620405ea76eb0fdeffd219a6e26bb38d7ecf1d038a10542","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-05-09T13:21:10Z","title_canon_sha256":"ec5ccd251f5f7e7fe90cdf4981e749c55971dfabb5ff23deca8aea979e476091"},"schema_version":"1.0","source":{"id":"1705.03312","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.03312","created_at":"2026-05-18T00:40:29Z"},{"alias_kind":"arxiv_version","alias_value":"1705.03312v1","created_at":"2026-05-18T00:40:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.03312","created_at":"2026-05-18T00:40:29Z"},{"alias_kind":"pith_short_12","alias_value":"MIVFEEWQPNUH","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_16","alias_value":"MIVFEEWQPNUHT34O","created_at":"2026-05-18T12:31:31Z"},{"alias_kind":"pith_short_8","alias_value":"MIVFEEWQ","created_at":"2026-05-18T12:31:31Z"}],"graph_snapshots":[{"event_id":"sha256:628e68a1294a9ab63aebc062766a6aae4fb08d4c05bf0e49476319a006d388b1","target":"graph","created_at":"2026-05-18T00:40:29Z","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 recent years it has been claimed that the length of stellar activity cycles is determined by the stellar rotation rate. It is observed that the cycle period increases with rotation period along the so-called active and inactive sequences. In this picture the Sun occupies a solitary position in between the two sequences. Our goal is to measure cyclic variations of the stellar light curve amplitude and the rotation period using four years of Kepler data. Periodic changes of the light curve amplitude or the stellar rotation period are associated with an underlying activity cycle. Using the McQ","authors_text":"Laurent Gizon, Robert H. Cameron, Timo Reinhold","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-05-09T13:21:10Z","title":"Evidence for photometric activity cycles in 3203 Kepler stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.03312","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":"sha256:01122ba6aa3aa39deabf9a8f1023cdcbf9d7adfd7f55487264b288e60bd378cb","target":"record","created_at":"2026-05-18T00:40:29Z","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":"414c1caf585f20fdd620405ea76eb0fdeffd219a6e26bb38d7ecf1d038a10542","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-05-09T13:21:10Z","title_canon_sha256":"ec5ccd251f5f7e7fe90cdf4981e749c55971dfabb5ff23deca8aea979e476091"},"schema_version":"1.0","source":{"id":"1705.03312","kind":"arxiv","version":1}},"canonical_sha256":"622a5212d07b6879ef8e1532e45e6f424ab5f69df2848d58f7d4ad301b5cd0ae","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"622a5212d07b6879ef8e1532e45e6f424ab5f69df2848d58f7d4ad301b5cd0ae","first_computed_at":"2026-05-18T00:40:29.966470Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:40:29.966470Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rZGVd5eudppZGr0MnCgN30OoxPE6YqCnP+Q/ZW2+Tgeg0K/o1963N4GgS43nKfs9MdRZiM2PuOWmdhRuXLsrDg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:40:29.966855Z","signed_message":"canonical_sha256_bytes"},"source_id":"1705.03312","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:01122ba6aa3aa39deabf9a8f1023cdcbf9d7adfd7f55487264b288e60bd378cb","sha256:628e68a1294a9ab63aebc062766a6aae4fb08d4c05bf0e49476319a006d388b1"],"state_sha256":"affa6e3335888005fedf151a6ef85c06d2b1e068e8ce277a11ab52969c248758"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uV3H1FqAPqJlpfih5Z8mzzsWkcd6Wj180h/z1MYNBgfLg9HPDKhiDJKe/XxekG/Ehehsr+JDCj0xKrOra8a8Cg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T18:42:19.878650Z","bundle_sha256":"9f52d483278678eebe3f27f881f0e544c5e34acb240c37ee92a045c5d7a67281"}}