{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:PRKGWUKYNCPOTGUDQ4MCW5XJTL","short_pith_number":"pith:PRKGWUKY","canonical_record":{"source":{"id":"1104.5166","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-04-27T15:40:23Z","cross_cats_sorted":[],"title_canon_sha256":"0efe1a4c91d245f5f0676c7ce1ef1f148aa46ac0750412a02600b1021b20fcd3","abstract_canon_sha256":"290679011f8f1a5cbc6fafb925dd55317b75d1fcc20fd9b3e2e2ce33b31c32fc"},"schema_version":"1.0"},"canonical_sha256":"7c546b5158689ee99a8387182b76e99adc97b41839a2313bfffc29e97359a32d","source":{"kind":"arxiv","id":"1104.5166","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1104.5166","created_at":"2026-05-18T02:02:14Z"},{"alias_kind":"arxiv_version","alias_value":"1104.5166v1","created_at":"2026-05-18T02:02:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1104.5166","created_at":"2026-05-18T02:02:14Z"},{"alias_kind":"pith_short_12","alias_value":"PRKGWUKYNCPO","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"PRKGWUKYNCPOTGUD","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"PRKGWUKY","created_at":"2026-05-18T12:26:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:PRKGWUKYNCPOTGUDQ4MCW5XJTL","target":"record","payload":{"canonical_record":{"source":{"id":"1104.5166","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-04-27T15:40:23Z","cross_cats_sorted":[],"title_canon_sha256":"0efe1a4c91d245f5f0676c7ce1ef1f148aa46ac0750412a02600b1021b20fcd3","abstract_canon_sha256":"290679011f8f1a5cbc6fafb925dd55317b75d1fcc20fd9b3e2e2ce33b31c32fc"},"schema_version":"1.0"},"canonical_sha256":"7c546b5158689ee99a8387182b76e99adc97b41839a2313bfffc29e97359a32d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:02:14.126066Z","signature_b64":"54NLECJUk8+8QJoy5tXorFJwf2eYUfgjkjAYNZG6dKnVdVaMNw3b33NEpJHm4l9oUDzKbB0++/qm6mmRKZGWAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7c546b5158689ee99a8387182b76e99adc97b41839a2313bfffc29e97359a32d","last_reissued_at":"2026-05-18T02:02:14.125290Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:02:14.125290Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1104.5166","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":"2026-05-18T02:02:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LFgzT2cTvPJuL8vV9bE0JO50RXee1fuxEEUMIS2Hs+S/4VNQ69XqSMfKAcZdgs8OFDodyI8KqCW4LYBuz+BXAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-02T23:56:55.487861Z"},"content_sha256":"b8a5b0c6b9040f92723914d97d7fa041c879439fdadc5f8c12183d343d6eae34","schema_version":"1.0","event_id":"sha256:b8a5b0c6b9040f92723914d97d7fa041c879439fdadc5f8c12183d343d6eae34"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:PRKGWUKYNCPOTGUDQ4MCW5XJTL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On the Formation Height of the SDO/HMI Fe 6173 Doppler Signal","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Bernhard Fleck, Sebastien Couvidat, Thomas Straus","submitted_at":"2011-04-27T15:40:23Z","abstract_excerpt":"The Helioseismic and Magnetic Imager (HMI) onboard the Solar Dynamics Observatory (SDO) is designed to study oscillations and the mag- netic field in the solar photosphere. It observes the full solar disk in the Fe I absorption line at 6173\\AA . We use the output of a high-resolution 3D, time- dependent, radiation-hydrodynamic simulation based on the CO5BOLD code to calculate profiles F({\\lambda},x,y,t) for the Fe I 6173{\\AA} line. The emerging profiles F({\\lambda},x,y,t) are multiplied by a representative set of HMI filter transmission profiles R_i({\\lambda},1 \\leq i \\leq 6) and filtergrams I"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1104.5166","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":"2026-05-18T02:02:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gLIT0sHzURB9TgaZo/BmO+11sUXMEHKnus3VDYaZaA0bE49N/IqM9733O462wfKO7Nz/KWNeSE5hhelc0RBZBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-02T23:56:55.488249Z"},"content_sha256":"b8e8211769ed3d4fc24aedf8f7d1646ce68ccea8d73d8d7ab1e77680899a861a","schema_version":"1.0","event_id":"sha256:b8e8211769ed3d4fc24aedf8f7d1646ce68ccea8d73d8d7ab1e77680899a861a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PRKGWUKYNCPOTGUDQ4MCW5XJTL/bundle.json","state_url":"https://pith.science/pith/PRKGWUKYNCPOTGUDQ4MCW5XJTL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PRKGWUKYNCPOTGUDQ4MCW5XJTL/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":"2026-07-02T23:56:55Z","links":{"resolver":"https://pith.science/pith/PRKGWUKYNCPOTGUDQ4MCW5XJTL","bundle":"https://pith.science/pith/PRKGWUKYNCPOTGUDQ4MCW5XJTL/bundle.json","state":"https://pith.science/pith/PRKGWUKYNCPOTGUDQ4MCW5XJTL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PRKGWUKYNCPOTGUDQ4MCW5XJTL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:PRKGWUKYNCPOTGUDQ4MCW5XJTL","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":"290679011f8f1a5cbc6fafb925dd55317b75d1fcc20fd9b3e2e2ce33b31c32fc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-04-27T15:40:23Z","title_canon_sha256":"0efe1a4c91d245f5f0676c7ce1ef1f148aa46ac0750412a02600b1021b20fcd3"},"schema_version":"1.0","source":{"id":"1104.5166","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1104.5166","created_at":"2026-05-18T02:02:14Z"},{"alias_kind":"arxiv_version","alias_value":"1104.5166v1","created_at":"2026-05-18T02:02:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1104.5166","created_at":"2026-05-18T02:02:14Z"},{"alias_kind":"pith_short_12","alias_value":"PRKGWUKYNCPO","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"PRKGWUKYNCPOTGUD","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"PRKGWUKY","created_at":"2026-05-18T12:26:39Z"}],"graph_snapshots":[{"event_id":"sha256:b8e8211769ed3d4fc24aedf8f7d1646ce68ccea8d73d8d7ab1e77680899a861a","target":"graph","created_at":"2026-05-18T02:02:14Z","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":"The Helioseismic and Magnetic Imager (HMI) onboard the Solar Dynamics Observatory (SDO) is designed to study oscillations and the mag- netic field in the solar photosphere. It observes the full solar disk in the Fe I absorption line at 6173\\AA . We use the output of a high-resolution 3D, time- dependent, radiation-hydrodynamic simulation based on the CO5BOLD code to calculate profiles F({\\lambda},x,y,t) for the Fe I 6173{\\AA} line. The emerging profiles F({\\lambda},x,y,t) are multiplied by a representative set of HMI filter transmission profiles R_i({\\lambda},1 \\leq i \\leq 6) and filtergrams I","authors_text":"Bernhard Fleck, Sebastien Couvidat, Thomas Straus","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-04-27T15:40:23Z","title":"On the Formation Height of the SDO/HMI Fe 6173 Doppler Signal"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1104.5166","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:b8a5b0c6b9040f92723914d97d7fa041c879439fdadc5f8c12183d343d6eae34","target":"record","created_at":"2026-05-18T02:02:14Z","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":"290679011f8f1a5cbc6fafb925dd55317b75d1fcc20fd9b3e2e2ce33b31c32fc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-04-27T15:40:23Z","title_canon_sha256":"0efe1a4c91d245f5f0676c7ce1ef1f148aa46ac0750412a02600b1021b20fcd3"},"schema_version":"1.0","source":{"id":"1104.5166","kind":"arxiv","version":1}},"canonical_sha256":"7c546b5158689ee99a8387182b76e99adc97b41839a2313bfffc29e97359a32d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7c546b5158689ee99a8387182b76e99adc97b41839a2313bfffc29e97359a32d","first_computed_at":"2026-05-18T02:02:14.125290Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:02:14.125290Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"54NLECJUk8+8QJoy5tXorFJwf2eYUfgjkjAYNZG6dKnVdVaMNw3b33NEpJHm4l9oUDzKbB0++/qm6mmRKZGWAw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:02:14.126066Z","signed_message":"canonical_sha256_bytes"},"source_id":"1104.5166","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b8a5b0c6b9040f92723914d97d7fa041c879439fdadc5f8c12183d343d6eae34","sha256:b8e8211769ed3d4fc24aedf8f7d1646ce68ccea8d73d8d7ab1e77680899a861a"],"state_sha256":"b0795bc3579ff02d289866e63995611b8e7dea3c1dede0381f892e6c3e2d482a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CutpDxmMEz1rNeDTqqnqHe3/GRGZU2aezCcbu4h0jKoTsjI7umcD9fuhQdb9iJBzAQ8NRprdTcI08O3wk57TAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-02T23:56:55.490150Z","bundle_sha256":"48cb6b67890021fe0a9996d51932daa96b29fc55f8343ae3e8ea2ce4803ca2df"}}