{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:PXLKPVBHFLRWRZKTGDIE5K7CGV","short_pith_number":"pith:PXLKPVBH","canonical_record":{"source":{"id":"1309.0004","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-08-30T20:00:02Z","cross_cats_sorted":[],"title_canon_sha256":"a52772c12511b39370c9425d0b12ad776519767181697118bbe2b5bef41383cd","abstract_canon_sha256":"99de9f7d3cea0ac79293dba1fd71ff42dae4b8be431c06468606f2a953522897"},"schema_version":"1.0"},"canonical_sha256":"7dd6a7d4272ae368e55330d04eabe235666b121725879db57a7116fcd1505626","source":{"kind":"arxiv","id":"1309.0004","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1309.0004","created_at":"2026-05-18T01:47:56Z"},{"alias_kind":"arxiv_version","alias_value":"1309.0004v1","created_at":"2026-05-18T01:47:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.0004","created_at":"2026-05-18T01:47:56Z"},{"alias_kind":"pith_short_12","alias_value":"PXLKPVBHFLRW","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_16","alias_value":"PXLKPVBHFLRWRZKT","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_8","alias_value":"PXLKPVBH","created_at":"2026-05-18T12:27:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:PXLKPVBHFLRWRZKTGDIE5K7CGV","target":"record","payload":{"canonical_record":{"source":{"id":"1309.0004","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-08-30T20:00:02Z","cross_cats_sorted":[],"title_canon_sha256":"a52772c12511b39370c9425d0b12ad776519767181697118bbe2b5bef41383cd","abstract_canon_sha256":"99de9f7d3cea0ac79293dba1fd71ff42dae4b8be431c06468606f2a953522897"},"schema_version":"1.0"},"canonical_sha256":"7dd6a7d4272ae368e55330d04eabe235666b121725879db57a7116fcd1505626","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:47:56.377707Z","signature_b64":"Avkh8W18iLSImW6epezOJjE/piqtOZBY5BWfxlH1bLZmZdr+AOKYG8VCKja4mlCg2XQ6kS4fUrURbpp9oj27AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7dd6a7d4272ae368e55330d04eabe235666b121725879db57a7116fcd1505626","last_reissued_at":"2026-05-18T01:47:56.377188Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:47:56.377188Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1309.0004","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":"2026-05-18T01:47:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bN5UXZaT9ZQ+1FZ0wkdiVarS6bsOnZ3Hs1IgSLvrSRDaS8DOP3RnBAck4IMPGYDa0fiJL1iXbFfGN7YGhGXtCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T07:24:25.892738Z"},"content_sha256":"62bbe101e31f510de19bf9fefde5ad7ba92bae3e27aabb8446ddca10513fd4e6","schema_version":"1.0","event_id":"sha256:62bbe101e31f510de19bf9fefde5ad7ba92bae3e27aabb8446ddca10513fd4e6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:PXLKPVBHFLRWRZKTGDIE5K7CGV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Surface Brightness Profiles of Dwarf Galaxies: I. Profiles and Statistics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Bruce G. Elmegreen, Deidre A. Hunter, Kimberly A. Herrmann","submitted_at":"2013-08-30T20:00:02Z","abstract_excerpt":"Radial surface brightness profiles of spiral galaxies are classified into three types: (I) single exponential, or the light falls off with one exponential to a break before falling off (II) more steeply, or (III) less steeply. Profile breaks are also found in dwarf disks, but some dwarf Type IIs are flat or increasing out to a break before falling off. Here we re-examine the stellar disk profiles of 141 dwarfs: 96 dwarf irregulars (dIms), 26 Blue Compact Dwarfs (BCDs), and 19 Magellanic-type spirals (Sms). We fit single, double, or even triple exponential profiles in up to 11 passbands: GALEX "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.0004","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":"2026-05-18T01:47:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"D+x84BTfJ6yPbJwXCT2wS7Oko5/08YghaIi51s4XCL3nEHT7bue9Gyfc2tqL+giuv99TXTBHigdzGesbn7TyBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T07:24:25.893477Z"},"content_sha256":"0b865b5fd1be2b43f79a204cd218ad2f71feb34dce7446d72d5280a166e43cb6","schema_version":"1.0","event_id":"sha256:0b865b5fd1be2b43f79a204cd218ad2f71feb34dce7446d72d5280a166e43cb6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PXLKPVBHFLRWRZKTGDIE5K7CGV/bundle.json","state_url":"https://pith.science/pith/PXLKPVBHFLRWRZKTGDIE5K7CGV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PXLKPVBHFLRWRZKTGDIE5K7CGV/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":"2026-05-26T07:24:25Z","links":{"resolver":"https://pith.science/pith/PXLKPVBHFLRWRZKTGDIE5K7CGV","bundle":"https://pith.science/pith/PXLKPVBHFLRWRZKTGDIE5K7CGV/bundle.json","state":"https://pith.science/pith/PXLKPVBHFLRWRZKTGDIE5K7CGV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PXLKPVBHFLRWRZKTGDIE5K7CGV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:PXLKPVBHFLRWRZKTGDIE5K7CGV","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":"99de9f7d3cea0ac79293dba1fd71ff42dae4b8be431c06468606f2a953522897","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-08-30T20:00:02Z","title_canon_sha256":"a52772c12511b39370c9425d0b12ad776519767181697118bbe2b5bef41383cd"},"schema_version":"1.0","source":{"id":"1309.0004","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1309.0004","created_at":"2026-05-18T01:47:56Z"},{"alias_kind":"arxiv_version","alias_value":"1309.0004v1","created_at":"2026-05-18T01:47:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.0004","created_at":"2026-05-18T01:47:56Z"},{"alias_kind":"pith_short_12","alias_value":"PXLKPVBHFLRW","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_16","alias_value":"PXLKPVBHFLRWRZKT","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_8","alias_value":"PXLKPVBH","created_at":"2026-05-18T12:27:57Z"}],"graph_snapshots":[{"event_id":"sha256:0b865b5fd1be2b43f79a204cd218ad2f71feb34dce7446d72d5280a166e43cb6","target":"graph","created_at":"2026-05-18T01:47:56Z","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":"Radial surface brightness profiles of spiral galaxies are classified into three types: (I) single exponential, or the light falls off with one exponential to a break before falling off (II) more steeply, or (III) less steeply. Profile breaks are also found in dwarf disks, but some dwarf Type IIs are flat or increasing out to a break before falling off. Here we re-examine the stellar disk profiles of 141 dwarfs: 96 dwarf irregulars (dIms), 26 Blue Compact Dwarfs (BCDs), and 19 Magellanic-type spirals (Sms). We fit single, double, or even triple exponential profiles in up to 11 passbands: GALEX ","authors_text":"Bruce G. Elmegreen, Deidre A. Hunter, Kimberly A. Herrmann","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-08-30T20:00:02Z","title":"Surface Brightness Profiles of Dwarf Galaxies: I. Profiles and Statistics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.0004","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":"sha256:62bbe101e31f510de19bf9fefde5ad7ba92bae3e27aabb8446ddca10513fd4e6","target":"record","created_at":"2026-05-18T01:47:56Z","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":"99de9f7d3cea0ac79293dba1fd71ff42dae4b8be431c06468606f2a953522897","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-08-30T20:00:02Z","title_canon_sha256":"a52772c12511b39370c9425d0b12ad776519767181697118bbe2b5bef41383cd"},"schema_version":"1.0","source":{"id":"1309.0004","kind":"arxiv","version":1}},"canonical_sha256":"7dd6a7d4272ae368e55330d04eabe235666b121725879db57a7116fcd1505626","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7dd6a7d4272ae368e55330d04eabe235666b121725879db57a7116fcd1505626","first_computed_at":"2026-05-18T01:47:56.377188Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:47:56.377188Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Avkh8W18iLSImW6epezOJjE/piqtOZBY5BWfxlH1bLZmZdr+AOKYG8VCKja4mlCg2XQ6kS4fUrURbpp9oj27AQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:47:56.377707Z","signed_message":"canonical_sha256_bytes"},"source_id":"1309.0004","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:62bbe101e31f510de19bf9fefde5ad7ba92bae3e27aabb8446ddca10513fd4e6","sha256:0b865b5fd1be2b43f79a204cd218ad2f71feb34dce7446d72d5280a166e43cb6"],"state_sha256":"e6e7a826a1a390b9e75ca34afce29d7a53c3cb933500da0bc1b8cedfcc455a66"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1yyLWVCOLVAUIcwD3lHDWgdr8xNXA3Bmjc6QPYpm/51PoH1R2m3K7fytvxpaIQlobj0NENYJGImPbFx5Ah/0Bw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T07:24:25.896616Z","bundle_sha256":"42ad806510353711c1854a6385512f9ff0b7d4c63e122a8418a6ab83d87023fa"}}