{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:VKJEVCIZUCU3SF5H722G5XZ37S","short_pith_number":"pith:VKJEVCIZ","canonical_record":{"source":{"id":"0811.3104","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-11-19T14:33:04Z","cross_cats_sorted":[],"title_canon_sha256":"d6d4720b217343833e81dc8423454f8e2eed86b880e95624c54ace41d2a4edbd","abstract_canon_sha256":"d7c445c48cddb22c1041ce8192bfc70b074f29aa08eae77156c24f9f3f24240f"},"schema_version":"1.0"},"canonical_sha256":"aa924a8919a0a9b917a7feb46edf3bfc8c29fcc98ea63c957fe9e8f2e6013184","source":{"kind":"arxiv","id":"0811.3104","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0811.3104","created_at":"2026-07-04T17:13:41Z"},{"alias_kind":"arxiv_version","alias_value":"0811.3104v1","created_at":"2026-07-04T17:13:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0811.3104","created_at":"2026-07-04T17:13:41Z"},{"alias_kind":"pith_short_12","alias_value":"VKJEVCIZUCU3","created_at":"2026-07-04T17:13:41Z"},{"alias_kind":"pith_short_16","alias_value":"VKJEVCIZUCU3SF5H","created_at":"2026-07-04T17:13:41Z"},{"alias_kind":"pith_short_8","alias_value":"VKJEVCIZ","created_at":"2026-07-04T17:13:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:VKJEVCIZUCU3SF5H722G5XZ37S","target":"record","payload":{"canonical_record":{"source":{"id":"0811.3104","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-11-19T14:33:04Z","cross_cats_sorted":[],"title_canon_sha256":"d6d4720b217343833e81dc8423454f8e2eed86b880e95624c54ace41d2a4edbd","abstract_canon_sha256":"d7c445c48cddb22c1041ce8192bfc70b074f29aa08eae77156c24f9f3f24240f"},"schema_version":"1.0"},"canonical_sha256":"aa924a8919a0a9b917a7feb46edf3bfc8c29fcc98ea63c957fe9e8f2e6013184","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T17:13:41.866085Z","signature_b64":"jXWObIrpy5dqUkeVD6FXXk5mISI+QwszKXsAela3mpUG1fdaXRABjuUaeMFBUOAGDx79B1j3YiCa0Ny7XWBECg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"aa924a8919a0a9b917a7feb46edf3bfc8c29fcc98ea63c957fe9e8f2e6013184","last_reissued_at":"2026-07-04T17:13:41.865724Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T17:13:41.865724Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0811.3104","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":"2026-07-04T17:13:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KSVLbRrVWYalOnha8jELVxT/5dJflvAuDaGM61QFcArY8DRwG3QYxdITnZkgudC2G+D3a4+0Cp+5jB8b1NEOAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T07:51:52.472458Z"},"content_sha256":"08facaca45161182ef4e4ea537454537b18f10e8e5761ad7d6872dadf86a8924","schema_version":"1.0","event_id":"sha256:08facaca45161182ef4e4ea537454537b18f10e8e5761ad7d6872dadf86a8924"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:VKJEVCIZUCU3SF5H722G5XZ37S","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On the nature of the extragalactic number counts in the K-band","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Gil de Paz, C. Eliche-Moral, D. Cristobal-Hornillos, G. Barro, J. Gallego, J. Zamorano, M. Balcells, M. Prieto, N. Cardiel, P.G. P\\'erez-Gonz\\'alez, R. G\\'uzman, R. Pell\\'o, V. Villar","submitted_at":"2008-11-19T14:33:04Z","abstract_excerpt":"We investigate the causes of the different shape of the $K$-band number counts when compared to other bands, analyzing in detail the presence of a change in the slope around $K\\sim17.5$. We present a near-infrared imaging survey, conducted at the 3.5m telescope of the Calar Alto Spanish-German Astronomical Center (CAHA), covering two separated fields centered on the HFDN and the Groth field, with a total combined area of $\\sim0.27$deg$^{2}$ to a depth of $K\\sim19$ ($3\\sigma$,Vega). We derive luminosity functions from the observed $K$-band in the redshift range [0.25-1.25], that are combined wi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0811.3104","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/0811.3104/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-04T17:13:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Htz2Vtc3pCjStxgg+09D24g/PtGkNOmZtLfJ9iRtsLgFu5XDrEKdM1OcHfnYVyH1y9wLKyCUIDHy49gXA88QAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T07:51:52.473030Z"},"content_sha256":"475036bfec9ec5587a88043d7bc1aeb14bd8cc26bef2001bc81ed42e7827f698","schema_version":"1.0","event_id":"sha256:475036bfec9ec5587a88043d7bc1aeb14bd8cc26bef2001bc81ed42e7827f698"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VKJEVCIZUCU3SF5H722G5XZ37S/bundle.json","state_url":"https://pith.science/pith/VKJEVCIZUCU3SF5H722G5XZ37S/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VKJEVCIZUCU3SF5H722G5XZ37S/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":"2026-08-06T07:51:52Z","links":{"resolver":"https://pith.science/pith/VKJEVCIZUCU3SF5H722G5XZ37S","bundle":"https://pith.science/pith/VKJEVCIZUCU3SF5H722G5XZ37S/bundle.json","state":"https://pith.science/pith/VKJEVCIZUCU3SF5H722G5XZ37S/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VKJEVCIZUCU3SF5H722G5XZ37S/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:VKJEVCIZUCU3SF5H722G5XZ37S","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":"d7c445c48cddb22c1041ce8192bfc70b074f29aa08eae77156c24f9f3f24240f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-11-19T14:33:04Z","title_canon_sha256":"d6d4720b217343833e81dc8423454f8e2eed86b880e95624c54ace41d2a4edbd"},"schema_version":"1.0","source":{"id":"0811.3104","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0811.3104","created_at":"2026-07-04T17:13:41Z"},{"alias_kind":"arxiv_version","alias_value":"0811.3104v1","created_at":"2026-07-04T17:13:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0811.3104","created_at":"2026-07-04T17:13:41Z"},{"alias_kind":"pith_short_12","alias_value":"VKJEVCIZUCU3","created_at":"2026-07-04T17:13:41Z"},{"alias_kind":"pith_short_16","alias_value":"VKJEVCIZUCU3SF5H","created_at":"2026-07-04T17:13:41Z"},{"alias_kind":"pith_short_8","alias_value":"VKJEVCIZ","created_at":"2026-07-04T17:13:41Z"}],"graph_snapshots":[{"event_id":"sha256:475036bfec9ec5587a88043d7bc1aeb14bd8cc26bef2001bc81ed42e7827f698","target":"graph","created_at":"2026-07-04T17:13:41Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/0811.3104/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We investigate the causes of the different shape of the $K$-band number counts when compared to other bands, analyzing in detail the presence of a change in the slope around $K\\sim17.5$. We present a near-infrared imaging survey, conducted at the 3.5m telescope of the Calar Alto Spanish-German Astronomical Center (CAHA), covering two separated fields centered on the HFDN and the Groth field, with a total combined area of $\\sim0.27$deg$^{2}$ to a depth of $K\\sim19$ ($3\\sigma$,Vega). We derive luminosity functions from the observed $K$-band in the redshift range [0.25-1.25], that are combined wi","authors_text":"A. Gil de Paz, C. Eliche-Moral, D. Cristobal-Hornillos, G. Barro, J. Gallego, J. Zamorano, M. Balcells, M. Prieto, N. Cardiel, P.G. P\\'erez-Gonz\\'alez, R. G\\'uzman, R. Pell\\'o, V. Villar","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-11-19T14:33:04Z","title":"On the nature of the extragalactic number counts in the K-band"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0811.3104","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":"sha256:08facaca45161182ef4e4ea537454537b18f10e8e5761ad7d6872dadf86a8924","target":"record","created_at":"2026-07-04T17:13:41Z","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":"d7c445c48cddb22c1041ce8192bfc70b074f29aa08eae77156c24f9f3f24240f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-11-19T14:33:04Z","title_canon_sha256":"d6d4720b217343833e81dc8423454f8e2eed86b880e95624c54ace41d2a4edbd"},"schema_version":"1.0","source":{"id":"0811.3104","kind":"arxiv","version":1}},"canonical_sha256":"aa924a8919a0a9b917a7feb46edf3bfc8c29fcc98ea63c957fe9e8f2e6013184","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"aa924a8919a0a9b917a7feb46edf3bfc8c29fcc98ea63c957fe9e8f2e6013184","first_computed_at":"2026-07-04T17:13:41.865724Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T17:13:41.865724Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jXWObIrpy5dqUkeVD6FXXk5mISI+QwszKXsAela3mpUG1fdaXRABjuUaeMFBUOAGDx79B1j3YiCa0Ny7XWBECg==","signature_status":"signed_v1","signed_at":"2026-07-04T17:13:41.866085Z","signed_message":"canonical_sha256_bytes"},"source_id":"0811.3104","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:08facaca45161182ef4e4ea537454537b18f10e8e5761ad7d6872dadf86a8924","sha256:475036bfec9ec5587a88043d7bc1aeb14bd8cc26bef2001bc81ed42e7827f698"],"state_sha256":"b1b73025d33ab9d4e1c3c6d176ec5ee8cb9a669488ae70da2131f6e4d1242256"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LSlPRa0ECkEcEcGRlBLxmDlJfQfTKRIowHBsr1SJT2fiE6l7lqU/L+jRL0QPTXeffWvmKt4DAQLPisYJ9xzjBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T07:51:52.476724Z","bundle_sha256":"6d9f46dd76d23a51ca94507d39f04b4ab88a3770fab297e37c8206c3950a3927"}}