{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:KN7TUIBVSMHZUGFJLXFQP2GSXJ","short_pith_number":"pith:KN7TUIBV","canonical_record":{"source":{"id":"0911.3319","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-11-17T14:43:02Z","cross_cats_sorted":[],"title_canon_sha256":"5ee2c9b05f6bff24c68b21d0c0557ec0c797fdc32125144a0b680b0750467698","abstract_canon_sha256":"962221fb43b83a513bb00edd348a1261bd96d15d7f801bcc60d61fb222b215e5"},"schema_version":"1.0"},"canonical_sha256":"537f3a2035930f9a18a95dcb07e8d2ba70452ed340ac76cf67a22e1006a8e263","source":{"kind":"arxiv","id":"0911.3319","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0911.3319","created_at":"2026-05-18T02:10:46Z"},{"alias_kind":"arxiv_version","alias_value":"0911.3319v3","created_at":"2026-05-18T02:10:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0911.3319","created_at":"2026-05-18T02:10:46Z"},{"alias_kind":"pith_short_12","alias_value":"KN7TUIBVSMHZ","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_16","alias_value":"KN7TUIBVSMHZUGFJ","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_8","alias_value":"KN7TUIBV","created_at":"2026-05-18T12:26:00Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:KN7TUIBVSMHZUGFJLXFQP2GSXJ","target":"record","payload":{"canonical_record":{"source":{"id":"0911.3319","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-11-17T14:43:02Z","cross_cats_sorted":[],"title_canon_sha256":"5ee2c9b05f6bff24c68b21d0c0557ec0c797fdc32125144a0b680b0750467698","abstract_canon_sha256":"962221fb43b83a513bb00edd348a1261bd96d15d7f801bcc60d61fb222b215e5"},"schema_version":"1.0"},"canonical_sha256":"537f3a2035930f9a18a95dcb07e8d2ba70452ed340ac76cf67a22e1006a8e263","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:10:46.761895Z","signature_b64":"LQmOKs/7CsvFpk9Llle2M4tiM69gmY1zf+e+PxRRmxR6twRZ+U5YjEGwzUDisFxE8PBxC4gOZKT/wKouZuqzDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"537f3a2035930f9a18a95dcb07e8d2ba70452ed340ac76cf67a22e1006a8e263","last_reissued_at":"2026-05-18T02:10:46.761075Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:10:46.761075Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0911.3319","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:10:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bHG+Cev5vII5QPw59G8eLVn5biU4g0de67V5EQnvA5KfcDOYnTGV2Eb4yAs/Nj5Lp3Ne118PeTwlSDkSEh4vAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T06:14:32.632202Z"},"content_sha256":"ac87071b5db815cf517df2a0c285f7defe995ad19ef5340a09c871306f9b110e","schema_version":"1.0","event_id":"sha256:ac87071b5db815cf517df2a0c285f7defe995ad19ef5340a09c871306f9b110e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:KN7TUIBVSMHZUGFJLXFQP2GSXJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On the power spectrum of solar surface flows","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"F. Rincon, J.-M. Malherbe, M. Rieutord, N. Meunier, T. Berger, T. Roudier, Z. Frank","submitted_at":"2009-11-17T14:43:02Z","abstract_excerpt":"The aim of this work is to give new observational constraints on solar surface flows by determining the horizontal scale dependence of the velocity and intensity fields, as represented by their power spectra, and to offer some theoretical guidelines to interpret these spectra. We use long time series of images taken by SOT/Hinode and reconstruct both horizontal (by granule tracking) and vertical (by Doppler effect) velocity fields in a field of view 75x75Mm^2. At small sub-granulation scales, the kinetic energy spectral density associated with vertical motions exhibits a k^{-10/3}-like spectru"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0911.3319","kind":"arxiv","version":3},"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":"2026-05-18T02:10:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aK4VJrFfKm8js3JpeSobnpzXdzqFMcNSLUz2YlZOO/s24DA+UlIbQ5j4+UQL7bARCNZmOwtwcHCR5XFX2EzUBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T06:14:32.632895Z"},"content_sha256":"1461c462ba46ed361124a94ab84bde127aae7fa01e930d59f82422d568a86e78","schema_version":"1.0","event_id":"sha256:1461c462ba46ed361124a94ab84bde127aae7fa01e930d59f82422d568a86e78"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KN7TUIBVSMHZUGFJLXFQP2GSXJ/bundle.json","state_url":"https://pith.science/pith/KN7TUIBVSMHZUGFJLXFQP2GSXJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KN7TUIBVSMHZUGFJLXFQP2GSXJ/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":"2026-05-26T06:14:32Z","links":{"resolver":"https://pith.science/pith/KN7TUIBVSMHZUGFJLXFQP2GSXJ","bundle":"https://pith.science/pith/KN7TUIBVSMHZUGFJLXFQP2GSXJ/bundle.json","state":"https://pith.science/pith/KN7TUIBVSMHZUGFJLXFQP2GSXJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KN7TUIBVSMHZUGFJLXFQP2GSXJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:KN7TUIBVSMHZUGFJLXFQP2GSXJ","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":"962221fb43b83a513bb00edd348a1261bd96d15d7f801bcc60d61fb222b215e5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-11-17T14:43:02Z","title_canon_sha256":"5ee2c9b05f6bff24c68b21d0c0557ec0c797fdc32125144a0b680b0750467698"},"schema_version":"1.0","source":{"id":"0911.3319","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0911.3319","created_at":"2026-05-18T02:10:46Z"},{"alias_kind":"arxiv_version","alias_value":"0911.3319v3","created_at":"2026-05-18T02:10:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0911.3319","created_at":"2026-05-18T02:10:46Z"},{"alias_kind":"pith_short_12","alias_value":"KN7TUIBVSMHZ","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_16","alias_value":"KN7TUIBVSMHZUGFJ","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_8","alias_value":"KN7TUIBV","created_at":"2026-05-18T12:26:00Z"}],"graph_snapshots":[{"event_id":"sha256:1461c462ba46ed361124a94ab84bde127aae7fa01e930d59f82422d568a86e78","target":"graph","created_at":"2026-05-18T02:10:46Z","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 aim of this work is to give new observational constraints on solar surface flows by determining the horizontal scale dependence of the velocity and intensity fields, as represented by their power spectra, and to offer some theoretical guidelines to interpret these spectra. We use long time series of images taken by SOT/Hinode and reconstruct both horizontal (by granule tracking) and vertical (by Doppler effect) velocity fields in a field of view 75x75Mm^2. At small sub-granulation scales, the kinetic energy spectral density associated with vertical motions exhibits a k^{-10/3}-like spectru","authors_text":"F. Rincon, J.-M. Malherbe, M. Rieutord, N. Meunier, T. Berger, T. Roudier, Z. Frank","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-11-17T14:43:02Z","title":"On the power spectrum of solar surface flows"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0911.3319","kind":"arxiv","version":3},"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:ac87071b5db815cf517df2a0c285f7defe995ad19ef5340a09c871306f9b110e","target":"record","created_at":"2026-05-18T02:10:46Z","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":"962221fb43b83a513bb00edd348a1261bd96d15d7f801bcc60d61fb222b215e5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-11-17T14:43:02Z","title_canon_sha256":"5ee2c9b05f6bff24c68b21d0c0557ec0c797fdc32125144a0b680b0750467698"},"schema_version":"1.0","source":{"id":"0911.3319","kind":"arxiv","version":3}},"canonical_sha256":"537f3a2035930f9a18a95dcb07e8d2ba70452ed340ac76cf67a22e1006a8e263","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"537f3a2035930f9a18a95dcb07e8d2ba70452ed340ac76cf67a22e1006a8e263","first_computed_at":"2026-05-18T02:10:46.761075Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:10:46.761075Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LQmOKs/7CsvFpk9Llle2M4tiM69gmY1zf+e+PxRRmxR6twRZ+U5YjEGwzUDisFxE8PBxC4gOZKT/wKouZuqzDg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:10:46.761895Z","signed_message":"canonical_sha256_bytes"},"source_id":"0911.3319","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ac87071b5db815cf517df2a0c285f7defe995ad19ef5340a09c871306f9b110e","sha256:1461c462ba46ed361124a94ab84bde127aae7fa01e930d59f82422d568a86e78"],"state_sha256":"d3d129f705b1d045855b7ffa2fa3ef5f9ecb053b50cb4809118251ea220187b7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GZaGa3xyLlTn3Uhqky4G65UKC2sivtHXo/LNNUh05bJZNLIw/yZ56ijvge67ylrv7UpRuyOJOIZkAbY/9vbGCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T06:14:32.636491Z","bundle_sha256":"986e7d05801a1d4edc0f5491b4a0744195fcc4338f45d04b0b9ab3539be8e7d9"}}