{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:KWNXNCU4NRPNQD5ATYWYFRETGY","short_pith_number":"pith:KWNXNCU4","canonical_record":{"source":{"id":"1804.07788","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-04-20T18:28:55Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"979ff57f07041f6135f95abd0a00c597d7e0f5f1fc45af393747aaefa6604c17","abstract_canon_sha256":"f508603ea79bff94fc1d5f70859c50f0b2a00dd3699c7c9eaced9e127e26a68b"},"schema_version":"1.0"},"canonical_sha256":"559b768a9c6c5ed80fa09e2d82c493360beaaf295ba6f7afd1de3ffc08564b7f","source":{"kind":"arxiv","id":"1804.07788","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.07788","created_at":"2026-05-18T00:12:17Z"},{"alias_kind":"arxiv_version","alias_value":"1804.07788v1","created_at":"2026-05-18T00:12:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.07788","created_at":"2026-05-18T00:12:17Z"},{"alias_kind":"pith_short_12","alias_value":"KWNXNCU4NRPN","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_16","alias_value":"KWNXNCU4NRPNQD5A","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_8","alias_value":"KWNXNCU4","created_at":"2026-05-18T12:32:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:KWNXNCU4NRPNQD5ATYWYFRETGY","target":"record","payload":{"canonical_record":{"source":{"id":"1804.07788","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-04-20T18:28:55Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"979ff57f07041f6135f95abd0a00c597d7e0f5f1fc45af393747aaefa6604c17","abstract_canon_sha256":"f508603ea79bff94fc1d5f70859c50f0b2a00dd3699c7c9eaced9e127e26a68b"},"schema_version":"1.0"},"canonical_sha256":"559b768a9c6c5ed80fa09e2d82c493360beaaf295ba6f7afd1de3ffc08564b7f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:12:17.438346Z","signature_b64":"F0lmLAtzE78uoIdl5rVqoBY4S4EJy5Jj9xDc3mM0aKE66RKFHEEi6RvJTTz9lFtv4OjO81Upn9V3k9h9M6OIDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"559b768a9c6c5ed80fa09e2d82c493360beaaf295ba6f7afd1de3ffc08564b7f","last_reissued_at":"2026-05-18T00:12:17.437541Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:12:17.437541Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1804.07788","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":"2026-05-18T00:12:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+K3AyVbVH+vl+uKeYlgJ4keh7JRsqeg6n0vys9lPdG+7FMB38RUTH8Tg3x3URak/vau56yTEcN4xiuhu8WEwCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T04:48:29.177572Z"},"content_sha256":"8bc89e46e87a5015b24355f53d173491b794c6d53c917e838f795a71db7693b0","schema_version":"1.0","event_id":"sha256:8bc89e46e87a5015b24355f53d173491b794c6d53c917e838f795a71db7693b0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:KWNXNCU4NRPNQD5ATYWYFRETGY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Absolute Magnitude of the Sun in Several Filters","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"astro-ph.SR","authors_text":"Christopher N. A. Willmer (Steward Observatory, University of Arizona)","submitted_at":"2018-04-20T18:28:55Z","abstract_excerpt":"This paper presents a table with estimates of the absolute magnitude of the Sun and the conversions from $vegamag$ to the AB and ST systems for several wide-band filters used in ground and space-based observatories. These estimates use the dustless spectral energy distribution (SED) of Vega, calibrated absolutely using the SED of Sirius, to set the $vegamag$ zero-points and a composite spectrum of the Sun that coadds space-based observations from the ultra-violet to the near infrared with models of the Solar atmosphere. The uncertainty of the absolute magnitudes is estimated comparing the synt"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.07788","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":"2026-05-18T00:12:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"f7AGIYwPndrfst0fch7OGR1N0iSAk+VHZ1/9gMFdlHY9iZwQKxVuTIW/z2sJ+nJJGhfVz2xebynfZ2QVLe0oCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T04:48:29.177935Z"},"content_sha256":"7c1fb93438dc1fcf687dcd9d478893c785013fe90acce6037ced6100babf04b7","schema_version":"1.0","event_id":"sha256:7c1fb93438dc1fcf687dcd9d478893c785013fe90acce6037ced6100babf04b7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KWNXNCU4NRPNQD5ATYWYFRETGY/bundle.json","state_url":"https://pith.science/pith/KWNXNCU4NRPNQD5ATYWYFRETGY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KWNXNCU4NRPNQD5ATYWYFRETGY/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":"2026-05-25T04:48:29Z","links":{"resolver":"https://pith.science/pith/KWNXNCU4NRPNQD5ATYWYFRETGY","bundle":"https://pith.science/pith/KWNXNCU4NRPNQD5ATYWYFRETGY/bundle.json","state":"https://pith.science/pith/KWNXNCU4NRPNQD5ATYWYFRETGY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KWNXNCU4NRPNQD5ATYWYFRETGY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:KWNXNCU4NRPNQD5ATYWYFRETGY","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":"f508603ea79bff94fc1d5f70859c50f0b2a00dd3699c7c9eaced9e127e26a68b","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-04-20T18:28:55Z","title_canon_sha256":"979ff57f07041f6135f95abd0a00c597d7e0f5f1fc45af393747aaefa6604c17"},"schema_version":"1.0","source":{"id":"1804.07788","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.07788","created_at":"2026-05-18T00:12:17Z"},{"alias_kind":"arxiv_version","alias_value":"1804.07788v1","created_at":"2026-05-18T00:12:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.07788","created_at":"2026-05-18T00:12:17Z"},{"alias_kind":"pith_short_12","alias_value":"KWNXNCU4NRPN","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_16","alias_value":"KWNXNCU4NRPNQD5A","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_8","alias_value":"KWNXNCU4","created_at":"2026-05-18T12:32:33Z"}],"graph_snapshots":[{"event_id":"sha256:7c1fb93438dc1fcf687dcd9d478893c785013fe90acce6037ced6100babf04b7","target":"graph","created_at":"2026-05-18T00:12:17Z","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":"This paper presents a table with estimates of the absolute magnitude of the Sun and the conversions from $vegamag$ to the AB and ST systems for several wide-band filters used in ground and space-based observatories. These estimates use the dustless spectral energy distribution (SED) of Vega, calibrated absolutely using the SED of Sirius, to set the $vegamag$ zero-points and a composite spectrum of the Sun that coadds space-based observations from the ultra-violet to the near infrared with models of the Solar atmosphere. The uncertainty of the absolute magnitudes is estimated comparing the synt","authors_text":"Christopher N. A. Willmer (Steward Observatory, University of Arizona)","cross_cats":["astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-04-20T18:28:55Z","title":"The Absolute Magnitude of the Sun in Several Filters"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.07788","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":"sha256:8bc89e46e87a5015b24355f53d173491b794c6d53c917e838f795a71db7693b0","target":"record","created_at":"2026-05-18T00:12:17Z","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":"f508603ea79bff94fc1d5f70859c50f0b2a00dd3699c7c9eaced9e127e26a68b","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-04-20T18:28:55Z","title_canon_sha256":"979ff57f07041f6135f95abd0a00c597d7e0f5f1fc45af393747aaefa6604c17"},"schema_version":"1.0","source":{"id":"1804.07788","kind":"arxiv","version":1}},"canonical_sha256":"559b768a9c6c5ed80fa09e2d82c493360beaaf295ba6f7afd1de3ffc08564b7f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"559b768a9c6c5ed80fa09e2d82c493360beaaf295ba6f7afd1de3ffc08564b7f","first_computed_at":"2026-05-18T00:12:17.437541Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:12:17.437541Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"F0lmLAtzE78uoIdl5rVqoBY4S4EJy5Jj9xDc3mM0aKE66RKFHEEi6RvJTTz9lFtv4OjO81Upn9V3k9h9M6OIDw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:12:17.438346Z","signed_message":"canonical_sha256_bytes"},"source_id":"1804.07788","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8bc89e46e87a5015b24355f53d173491b794c6d53c917e838f795a71db7693b0","sha256:7c1fb93438dc1fcf687dcd9d478893c785013fe90acce6037ced6100babf04b7"],"state_sha256":"92cb7915cfc3199c8391505c26cdbce94b57bb16ddc091c953240eedf55b2c94"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cmSmeQnVkryhVcZABR3XOCh7YZOPe7JEoIsCPTqaLS0tHOe4xB2TYfIXxwB9RBARN2RstBNuUSNCHxYR9I4xDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T04:48:29.181022Z","bundle_sha256":"87b3f7b795d2b5cc3d49d37d7cc821a174c734e43c0caa899d210935fcc49430"}}