{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:JVTKVORVS6COTL5BIWU56WRDZK","short_pith_number":"pith:JVTKVORV","canonical_record":{"source":{"id":"1503.00657","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-02-12T21:00:56Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"a9302957996da6912dae2afa01d531d10efaad439230879183f7c4da5cb0efd6","abstract_canon_sha256":"62171f11393f4e138593d0118c55f8329f253cc45ff0567d24e4cfbe27600eac"},"schema_version":"1.0"},"canonical_sha256":"4d66aaba359784e9afa145a9df5a23caa8bbd7da015a4ab27a032d01be4c41a9","source":{"kind":"arxiv","id":"1503.00657","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1503.00657","created_at":"2026-05-18T01:40:53Z"},{"alias_kind":"arxiv_version","alias_value":"1503.00657v1","created_at":"2026-05-18T01:40:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.00657","created_at":"2026-05-18T01:40:53Z"},{"alias_kind":"pith_short_12","alias_value":"JVTKVORVS6CO","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_16","alias_value":"JVTKVORVS6COTL5B","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_8","alias_value":"JVTKVORV","created_at":"2026-05-18T12:29:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:JVTKVORVS6COTL5BIWU56WRDZK","target":"record","payload":{"canonical_record":{"source":{"id":"1503.00657","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-02-12T21:00:56Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"a9302957996da6912dae2afa01d531d10efaad439230879183f7c4da5cb0efd6","abstract_canon_sha256":"62171f11393f4e138593d0118c55f8329f253cc45ff0567d24e4cfbe27600eac"},"schema_version":"1.0"},"canonical_sha256":"4d66aaba359784e9afa145a9df5a23caa8bbd7da015a4ab27a032d01be4c41a9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:40:53.816423Z","signature_b64":"CBLBGUYedHJhSVvXGlD90t6P35/i1ITBGuI5vlhwYGtu/gh5gyjkJKxvJX8V4smYtkDs73hhWEgjhxkFGHmbAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4d66aaba359784e9afa145a9df5a23caa8bbd7da015a4ab27a032d01be4c41a9","last_reissued_at":"2026-05-18T01:40:53.815769Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:40:53.815769Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1503.00657","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":"2026-05-18T01:40:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FRE45CzlQ4oLG+ZdMAeqRVw3GzT+/ab8Ev3uts50UDScl3/EYePsbfXYEYStZ3bYRsoZ87RMbYVEUDe+6yfzDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-23T10:44:03.639054Z"},"content_sha256":"967e8c0b1c9c7c68f686dbe4b47c939b24c2f36f655e7f7ffb0df05fd3046b1d","schema_version":"1.0","event_id":"sha256:967e8c0b1c9c7c68f686dbe4b47c939b24c2f36f655e7f7ffb0df05fd3046b1d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:JVTKVORVS6COTL5BIWU56WRDZK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"SDSSJ14584479+3720215: A Benchmark JHK Blazar Light Curve from the 2MASS Calibration Scans","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.HE","authors_text":"Andrew C. Becker, Chelsea L. MacLeod, James R. A. Davenport, John J. Ruan, Roc M. Cutri","submitted_at":"2015-02-12T21:00:56Z","abstract_excerpt":"Active galactic nuclei (AGNs) are well-known to exhibit flux variability across a wide range of wavelength regimes, but the precise origin of the variability at different wavelengths remains unclear. To investigate the relatively unexplored near-IR variability of the most luminous AGNs, we conduct a search for variability using well sampled JHKs-band light curves from the 2MASS survey calibration fields. Our sample includes 27 known quasars with an average of 924 epochs of observation over three years, as well as one spectroscopically confirmed blazar (SDSSJ14584479+3720215) with 1972 epochs o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.00657","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":"2026-05-18T01:40:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ihB5i3oq2SUjdSRLKRzKc41ZAWO/jhOpylazIfWvC+YTxSC/2GsQ8PQyAdNvkwlmJTPyevV8L1VNyWyykMy8Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-23T10:44:03.639714Z"},"content_sha256":"80499f2c4dcfa98767f4dd7bfe6c5c5c288bebaf43d498fa6afd64ef4112152a","schema_version":"1.0","event_id":"sha256:80499f2c4dcfa98767f4dd7bfe6c5c5c288bebaf43d498fa6afd64ef4112152a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JVTKVORVS6COTL5BIWU56WRDZK/bundle.json","state_url":"https://pith.science/pith/JVTKVORVS6COTL5BIWU56WRDZK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JVTKVORVS6COTL5BIWU56WRDZK/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":"2026-05-23T10:44:03Z","links":{"resolver":"https://pith.science/pith/JVTKVORVS6COTL5BIWU56WRDZK","bundle":"https://pith.science/pith/JVTKVORVS6COTL5BIWU56WRDZK/bundle.json","state":"https://pith.science/pith/JVTKVORVS6COTL5BIWU56WRDZK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JVTKVORVS6COTL5BIWU56WRDZK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:JVTKVORVS6COTL5BIWU56WRDZK","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":"62171f11393f4e138593d0118c55f8329f253cc45ff0567d24e4cfbe27600eac","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-02-12T21:00:56Z","title_canon_sha256":"a9302957996da6912dae2afa01d531d10efaad439230879183f7c4da5cb0efd6"},"schema_version":"1.0","source":{"id":"1503.00657","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1503.00657","created_at":"2026-05-18T01:40:53Z"},{"alias_kind":"arxiv_version","alias_value":"1503.00657v1","created_at":"2026-05-18T01:40:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1503.00657","created_at":"2026-05-18T01:40:53Z"},{"alias_kind":"pith_short_12","alias_value":"JVTKVORVS6CO","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_16","alias_value":"JVTKVORVS6COTL5B","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_8","alias_value":"JVTKVORV","created_at":"2026-05-18T12:29:27Z"}],"graph_snapshots":[{"event_id":"sha256:80499f2c4dcfa98767f4dd7bfe6c5c5c288bebaf43d498fa6afd64ef4112152a","target":"graph","created_at":"2026-05-18T01:40:53Z","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":"Active galactic nuclei (AGNs) are well-known to exhibit flux variability across a wide range of wavelength regimes, but the precise origin of the variability at different wavelengths remains unclear. To investigate the relatively unexplored near-IR variability of the most luminous AGNs, we conduct a search for variability using well sampled JHKs-band light curves from the 2MASS survey calibration fields. Our sample includes 27 known quasars with an average of 924 epochs of observation over three years, as well as one spectroscopically confirmed blazar (SDSSJ14584479+3720215) with 1972 epochs o","authors_text":"Andrew C. Becker, Chelsea L. MacLeod, James R. A. Davenport, John J. Ruan, Roc M. Cutri","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-02-12T21:00:56Z","title":"SDSSJ14584479+3720215: A Benchmark JHK Blazar Light Curve from the 2MASS Calibration Scans"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1503.00657","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":"sha256:967e8c0b1c9c7c68f686dbe4b47c939b24c2f36f655e7f7ffb0df05fd3046b1d","target":"record","created_at":"2026-05-18T01:40:53Z","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":"62171f11393f4e138593d0118c55f8329f253cc45ff0567d24e4cfbe27600eac","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-02-12T21:00:56Z","title_canon_sha256":"a9302957996da6912dae2afa01d531d10efaad439230879183f7c4da5cb0efd6"},"schema_version":"1.0","source":{"id":"1503.00657","kind":"arxiv","version":1}},"canonical_sha256":"4d66aaba359784e9afa145a9df5a23caa8bbd7da015a4ab27a032d01be4c41a9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4d66aaba359784e9afa145a9df5a23caa8bbd7da015a4ab27a032d01be4c41a9","first_computed_at":"2026-05-18T01:40:53.815769Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:40:53.815769Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CBLBGUYedHJhSVvXGlD90t6P35/i1ITBGuI5vlhwYGtu/gh5gyjkJKxvJX8V4smYtkDs73hhWEgjhxkFGHmbAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:40:53.816423Z","signed_message":"canonical_sha256_bytes"},"source_id":"1503.00657","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:967e8c0b1c9c7c68f686dbe4b47c939b24c2f36f655e7f7ffb0df05fd3046b1d","sha256:80499f2c4dcfa98767f4dd7bfe6c5c5c288bebaf43d498fa6afd64ef4112152a"],"state_sha256":"93973b03d7f25e49a508ce5ce5ffa1b5696d53248831136da20b1dda0d672fc4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xw70xdRRL3CcFaMSVxgak+fpN8EOFRBbWIifav6yKu335XaU/FgkA1kRk6exMis+ptjeRroBevmY+51z04HpCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-23T10:44:03.643208Z","bundle_sha256":"906fd0caa67e84709e1664d2697a9d56387ab4c968dbd1b88816c164f8c036bd"}}