{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:FGTAOZLIJ32GBBUSUEUZURGAA2","short_pith_number":"pith:FGTAOZLI","canonical_record":{"source":{"id":"1208.2997","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-08-15T00:14:31Z","cross_cats_sorted":[],"title_canon_sha256":"001f21a407cd29ae317c50906f8515eab831fcc978a03f5399e6816e6efd8cda","abstract_canon_sha256":"62a50d86b739eb7f4d66e35b150a867de88c650f42c9e641f9103a39c1c03fbe"},"schema_version":"1.0"},"canonical_sha256":"29a60765684ef4608692a1299a44c0068a947b89747e0c790f6002dcef0cd190","source":{"kind":"arxiv","id":"1208.2997","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1208.2997","created_at":"2026-05-18T03:48:45Z"},{"alias_kind":"arxiv_version","alias_value":"1208.2997v1","created_at":"2026-05-18T03:48:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1208.2997","created_at":"2026-05-18T03:48:45Z"},{"alias_kind":"pith_short_12","alias_value":"FGTAOZLIJ32G","created_at":"2026-05-18T12:27:06Z"},{"alias_kind":"pith_short_16","alias_value":"FGTAOZLIJ32GBBUS","created_at":"2026-05-18T12:27:06Z"},{"alias_kind":"pith_short_8","alias_value":"FGTAOZLI","created_at":"2026-05-18T12:27:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:FGTAOZLIJ32GBBUSUEUZURGAA2","target":"record","payload":{"canonical_record":{"source":{"id":"1208.2997","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-08-15T00:14:31Z","cross_cats_sorted":[],"title_canon_sha256":"001f21a407cd29ae317c50906f8515eab831fcc978a03f5399e6816e6efd8cda","abstract_canon_sha256":"62a50d86b739eb7f4d66e35b150a867de88c650f42c9e641f9103a39c1c03fbe"},"schema_version":"1.0"},"canonical_sha256":"29a60765684ef4608692a1299a44c0068a947b89747e0c790f6002dcef0cd190","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:48:45.838080Z","signature_b64":"TA3WtbJX/B2kp0GZdCXTBoFD1yykPQfX7f36zrCcx+SSiER0g/zTC7nARmNQu7g/5kauhU3WMS/s2ocNCqDlDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"29a60765684ef4608692a1299a44c0068a947b89747e0c790f6002dcef0cd190","last_reissued_at":"2026-05-18T03:48:45.837334Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:48:45.837334Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1208.2997","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":"2026-05-18T03:48:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/pH/WoCrT/okVFU0SIOJpN5kAWFejcE27BsvHC4uEUOp+ibtzy6DedYP+s+acXJWr6bCvUW8+GHZcVzj5zPKBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T13:28:03.010312Z"},"content_sha256":"f6adabb78aab6c5aa688b5739345295d8a4c56cf58e5ceafbc7083fe31708b91","schema_version":"1.0","event_id":"sha256:f6adabb78aab6c5aa688b5739345295d8a4c56cf58e5ceafbc7083fe31708b91"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:FGTAOZLIJ32GBBUSUEUZURGAA2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Star Formation Rate Indicators","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Daniela Calzetti (University of Massachusetts)","submitted_at":"2012-08-15T00:14:31Z","abstract_excerpt":"What else can be said about star formation rate indicators that has not been said already many times over? The `coming of age' of large ground-based surveys and the unprecedented sensitivity, angular resolution and/or field-of-view of infrared and ultraviolet space missions have provided extensive, homogeneous data on both nearby and distant galaxies, which have been used to further our understanding of the strengths and pitfalls of many common star formation rate indicators. The synergy between these surveys has also enabled the calibration of indicators for use on scales that are comparable "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.2997","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":"2026-05-18T03:48:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0gePZNeA/7FC4P5cxpcEbltpIiePHtvh4gE4if+njAGgHC6ac8drdliPSGfPiNV8l/tSxmWBpTnNcMw2CfT1Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T13:28:03.010790Z"},"content_sha256":"b297be47cad4f60cd68ffce94050df9d10217a2e108456a093f990d9eaa467f2","schema_version":"1.0","event_id":"sha256:b297be47cad4f60cd68ffce94050df9d10217a2e108456a093f990d9eaa467f2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FGTAOZLIJ32GBBUSUEUZURGAA2/bundle.json","state_url":"https://pith.science/pith/FGTAOZLIJ32GBBUSUEUZURGAA2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FGTAOZLIJ32GBBUSUEUZURGAA2/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":"2026-08-19T13:28:03Z","links":{"resolver":"https://pith.science/pith/FGTAOZLIJ32GBBUSUEUZURGAA2","bundle":"https://pith.science/pith/FGTAOZLIJ32GBBUSUEUZURGAA2/bundle.json","state":"https://pith.science/pith/FGTAOZLIJ32GBBUSUEUZURGAA2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FGTAOZLIJ32GBBUSUEUZURGAA2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:FGTAOZLIJ32GBBUSUEUZURGAA2","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":"62a50d86b739eb7f4d66e35b150a867de88c650f42c9e641f9103a39c1c03fbe","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-08-15T00:14:31Z","title_canon_sha256":"001f21a407cd29ae317c50906f8515eab831fcc978a03f5399e6816e6efd8cda"},"schema_version":"1.0","source":{"id":"1208.2997","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1208.2997","created_at":"2026-05-18T03:48:45Z"},{"alias_kind":"arxiv_version","alias_value":"1208.2997v1","created_at":"2026-05-18T03:48:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1208.2997","created_at":"2026-05-18T03:48:45Z"},{"alias_kind":"pith_short_12","alias_value":"FGTAOZLIJ32G","created_at":"2026-05-18T12:27:06Z"},{"alias_kind":"pith_short_16","alias_value":"FGTAOZLIJ32GBBUS","created_at":"2026-05-18T12:27:06Z"},{"alias_kind":"pith_short_8","alias_value":"FGTAOZLI","created_at":"2026-05-18T12:27:06Z"}],"graph_snapshots":[{"event_id":"sha256:b297be47cad4f60cd68ffce94050df9d10217a2e108456a093f990d9eaa467f2","target":"graph","created_at":"2026-05-18T03:48:45Z","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":"What else can be said about star formation rate indicators that has not been said already many times over? The `coming of age' of large ground-based surveys and the unprecedented sensitivity, angular resolution and/or field-of-view of infrared and ultraviolet space missions have provided extensive, homogeneous data on both nearby and distant galaxies, which have been used to further our understanding of the strengths and pitfalls of many common star formation rate indicators. The synergy between these surveys has also enabled the calibration of indicators for use on scales that are comparable ","authors_text":"Daniela Calzetti (University of Massachusetts)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-08-15T00:14:31Z","title":"Star Formation Rate Indicators"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.2997","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:f6adabb78aab6c5aa688b5739345295d8a4c56cf58e5ceafbc7083fe31708b91","target":"record","created_at":"2026-05-18T03:48:45Z","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":"62a50d86b739eb7f4d66e35b150a867de88c650f42c9e641f9103a39c1c03fbe","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-08-15T00:14:31Z","title_canon_sha256":"001f21a407cd29ae317c50906f8515eab831fcc978a03f5399e6816e6efd8cda"},"schema_version":"1.0","source":{"id":"1208.2997","kind":"arxiv","version":1}},"canonical_sha256":"29a60765684ef4608692a1299a44c0068a947b89747e0c790f6002dcef0cd190","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"29a60765684ef4608692a1299a44c0068a947b89747e0c790f6002dcef0cd190","first_computed_at":"2026-05-18T03:48:45.837334Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:48:45.837334Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"TA3WtbJX/B2kp0GZdCXTBoFD1yykPQfX7f36zrCcx+SSiER0g/zTC7nARmNQu7g/5kauhU3WMS/s2ocNCqDlDA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:48:45.838080Z","signed_message":"canonical_sha256_bytes"},"source_id":"1208.2997","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f6adabb78aab6c5aa688b5739345295d8a4c56cf58e5ceafbc7083fe31708b91","sha256:b297be47cad4f60cd68ffce94050df9d10217a2e108456a093f990d9eaa467f2"],"state_sha256":"3d08c22c078a517ba5eb13569cf3c5bab6cc85a7c3f7f924e07d399f60853e30"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bfoQ4oOpvtdkpe6T7IF7pvy2oyx3wDrE3JCsMSy6+exEXB/qQZtMYf6mc+iSINqcT1TZb3P4YTEyiNzGc08VAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-19T13:28:03.017338Z","bundle_sha256":"52f380c2f3dcb8af16b3a8af0999be5a5733ce34eb83849f8399ab59d6ea7063"}}