{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:XK42URY6HFB2INS7KIIVHIDYG7","short_pith_number":"pith:XK42URY6","canonical_record":{"source":{"id":"1301.1562","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-01-08T15:22:00Z","cross_cats_sorted":[],"title_canon_sha256":"01f4e8e5f041d5451f58ad43a7cb5327632d5314daf7b74d5978471db69251b0","abstract_canon_sha256":"0a8454138cdcb9c8eafa75886a1b458e14756e3c61fb66eec19ccdb7c449e54b"},"schema_version":"1.0"},"canonical_sha256":"bab9aa471e3943a4365f521153a07837d89cf058916023fe657b1885a5435b89","source":{"kind":"arxiv","id":"1301.1562","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.1562","created_at":"2026-05-18T03:36:57Z"},{"alias_kind":"arxiv_version","alias_value":"1301.1562v1","created_at":"2026-05-18T03:36:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.1562","created_at":"2026-05-18T03:36:57Z"},{"alias_kind":"pith_short_12","alias_value":"XK42URY6HFB2","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_16","alias_value":"XK42URY6HFB2INS7","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_8","alias_value":"XK42URY6","created_at":"2026-05-18T12:28:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:XK42URY6HFB2INS7KIIVHIDYG7","target":"record","payload":{"canonical_record":{"source":{"id":"1301.1562","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-01-08T15:22:00Z","cross_cats_sorted":[],"title_canon_sha256":"01f4e8e5f041d5451f58ad43a7cb5327632d5314daf7b74d5978471db69251b0","abstract_canon_sha256":"0a8454138cdcb9c8eafa75886a1b458e14756e3c61fb66eec19ccdb7c449e54b"},"schema_version":"1.0"},"canonical_sha256":"bab9aa471e3943a4365f521153a07837d89cf058916023fe657b1885a5435b89","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:36:57.171611Z","signature_b64":"f04PpNLjay4XkjfzRJvjjONgm3YPugKpxxOCMNbrpkC+SlmTBGKxbfwTZDw12wCxsa44jgi8ziMH+4/iZkWlBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bab9aa471e3943a4365f521153a07837d89cf058916023fe657b1885a5435b89","last_reissued_at":"2026-05-18T03:36:57.171164Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:36:57.171164Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1301.1562","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":"2026-05-18T03:36:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uBsWINTjqfxrEU2vQqJ6Y+XgTtsgmG0n9gT2H3khefsndfZRlGDawpENECvU14Y4sAO2A58AxCjQWaHVRs6HAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T07:17:17.796423Z"},"content_sha256":"df7c2310f66779188e2ac945544cf1356ae4e7eb90fbb80be9b968c3659e8d44","schema_version":"1.0","event_id":"sha256:df7c2310f66779188e2ac945544cf1356ae4e7eb90fbb80be9b968c3659e8d44"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:XK42URY6HFB2INS7KIIVHIDYG7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Properties of a Decaying Sunspot","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"C. Beck, H. Balthasar, K. G. Puschmann, K. Muglach, M. Verma, P. G\\\"om\\\"ory, T. Shimizu","submitted_at":"2013-01-08T15:22:00Z","abstract_excerpt":"A small decaying sunspot was observed with the Vacuum Tower Telescope (VTT) on Tenerife and the Japanese Hinode satellite. We obtained full Stokes scans in several wavelengths covering different heights in the solar atmosphere. Imaging time series from Hinode and the Solar Dynamics Observatory (SDO) complete our data sets. The spot is surrounded by a moat flow, which persists also on that side of the spot where the penumbra already had disappeared. Close to the spot, we find a chromospheric location with downflows of more than 10 km/s without photospheric counterpart. The height dependence of "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.1562","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":"2026-05-18T03:36:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AryvxwvUXkWgDFHfoc7uJ3gXdb64dkgaj/9pxG3yZyxUBqGyncMSaN4yUK9fCIF5xVm1+kEQmbxFPTFYatD4Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T07:17:17.796771Z"},"content_sha256":"f7ce43790b7034cf85905876c01a64f19c5a773bada1c0e69c5f4062de5aae81","schema_version":"1.0","event_id":"sha256:f7ce43790b7034cf85905876c01a64f19c5a773bada1c0e69c5f4062de5aae81"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XK42URY6HFB2INS7KIIVHIDYG7/bundle.json","state_url":"https://pith.science/pith/XK42URY6HFB2INS7KIIVHIDYG7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XK42URY6HFB2INS7KIIVHIDYG7/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":"2026-06-02T07:17:17Z","links":{"resolver":"https://pith.science/pith/XK42URY6HFB2INS7KIIVHIDYG7","bundle":"https://pith.science/pith/XK42URY6HFB2INS7KIIVHIDYG7/bundle.json","state":"https://pith.science/pith/XK42URY6HFB2INS7KIIVHIDYG7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XK42URY6HFB2INS7KIIVHIDYG7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:XK42URY6HFB2INS7KIIVHIDYG7","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":"0a8454138cdcb9c8eafa75886a1b458e14756e3c61fb66eec19ccdb7c449e54b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-01-08T15:22:00Z","title_canon_sha256":"01f4e8e5f041d5451f58ad43a7cb5327632d5314daf7b74d5978471db69251b0"},"schema_version":"1.0","source":{"id":"1301.1562","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.1562","created_at":"2026-05-18T03:36:57Z"},{"alias_kind":"arxiv_version","alias_value":"1301.1562v1","created_at":"2026-05-18T03:36:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.1562","created_at":"2026-05-18T03:36:57Z"},{"alias_kind":"pith_short_12","alias_value":"XK42URY6HFB2","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_16","alias_value":"XK42URY6HFB2INS7","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_8","alias_value":"XK42URY6","created_at":"2026-05-18T12:28:06Z"}],"graph_snapshots":[{"event_id":"sha256:f7ce43790b7034cf85905876c01a64f19c5a773bada1c0e69c5f4062de5aae81","target":"graph","created_at":"2026-05-18T03:36:57Z","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":"A small decaying sunspot was observed with the Vacuum Tower Telescope (VTT) on Tenerife and the Japanese Hinode satellite. We obtained full Stokes scans in several wavelengths covering different heights in the solar atmosphere. Imaging time series from Hinode and the Solar Dynamics Observatory (SDO) complete our data sets. The spot is surrounded by a moat flow, which persists also on that side of the spot where the penumbra already had disappeared. Close to the spot, we find a chromospheric location with downflows of more than 10 km/s without photospheric counterpart. The height dependence of ","authors_text":"C. Beck, H. Balthasar, K. G. Puschmann, K. Muglach, M. Verma, P. G\\\"om\\\"ory, T. Shimizu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-01-08T15:22:00Z","title":"Properties of a Decaying Sunspot"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.1562","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:df7c2310f66779188e2ac945544cf1356ae4e7eb90fbb80be9b968c3659e8d44","target":"record","created_at":"2026-05-18T03:36:57Z","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":"0a8454138cdcb9c8eafa75886a1b458e14756e3c61fb66eec19ccdb7c449e54b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-01-08T15:22:00Z","title_canon_sha256":"01f4e8e5f041d5451f58ad43a7cb5327632d5314daf7b74d5978471db69251b0"},"schema_version":"1.0","source":{"id":"1301.1562","kind":"arxiv","version":1}},"canonical_sha256":"bab9aa471e3943a4365f521153a07837d89cf058916023fe657b1885a5435b89","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bab9aa471e3943a4365f521153a07837d89cf058916023fe657b1885a5435b89","first_computed_at":"2026-05-18T03:36:57.171164Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:36:57.171164Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"f04PpNLjay4XkjfzRJvjjONgm3YPugKpxxOCMNbrpkC+SlmTBGKxbfwTZDw12wCxsa44jgi8ziMH+4/iZkWlBw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:36:57.171611Z","signed_message":"canonical_sha256_bytes"},"source_id":"1301.1562","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:df7c2310f66779188e2ac945544cf1356ae4e7eb90fbb80be9b968c3659e8d44","sha256:f7ce43790b7034cf85905876c01a64f19c5a773bada1c0e69c5f4062de5aae81"],"state_sha256":"23d8ae303d8a87f79bb187950288289fb642ba1d7a50b8f8ccd52c39078cd615"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hyLqv1bqg9B+QdRA9wcSsH+TyjSx0kHRF1hS7OpfIRAzwehGzVpITnFnCFpp2hdxcLwkucb/WUxRHmZaeTcSDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T07:17:17.798704Z","bundle_sha256":"9a5de23823e73dfc1cecfdc3921ef077fff7579afbf5d9b705a5e5f4185cbc8f"}}