{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:BVTTWARATOHJ7E2SW2N73Q64PH","short_pith_number":"pith:BVTTWARA","canonical_record":{"source":{"id":"1404.7712","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-04-30T13:07:40Z","cross_cats_sorted":[],"title_canon_sha256":"df838d5d667d61da655da2cbb8407475c6dab7882b62e026e61b17691529da5e","abstract_canon_sha256":"645cb9ab7ea9d778e5ca9e73d03b7d7c5edfaac40f6e8b405c8d2ed30e3a9802"},"schema_version":"1.0"},"canonical_sha256":"0d673b02209b8e9f9352b69bfdc3dc79f59e8d6a9c4ab35f1b18647c5b845c24","source":{"kind":"arxiv","id":"1404.7712","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1404.7712","created_at":"2026-05-18T01:43:21Z"},{"alias_kind":"arxiv_version","alias_value":"1404.7712v1","created_at":"2026-05-18T01:43:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.7712","created_at":"2026-05-18T01:43:21Z"},{"alias_kind":"pith_short_12","alias_value":"BVTTWARATOHJ","created_at":"2026-05-18T12:28:22Z"},{"alias_kind":"pith_short_16","alias_value":"BVTTWARATOHJ7E2S","created_at":"2026-05-18T12:28:22Z"},{"alias_kind":"pith_short_8","alias_value":"BVTTWARA","created_at":"2026-05-18T12:28:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:BVTTWARATOHJ7E2SW2N73Q64PH","target":"record","payload":{"canonical_record":{"source":{"id":"1404.7712","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-04-30T13:07:40Z","cross_cats_sorted":[],"title_canon_sha256":"df838d5d667d61da655da2cbb8407475c6dab7882b62e026e61b17691529da5e","abstract_canon_sha256":"645cb9ab7ea9d778e5ca9e73d03b7d7c5edfaac40f6e8b405c8d2ed30e3a9802"},"schema_version":"1.0"},"canonical_sha256":"0d673b02209b8e9f9352b69bfdc3dc79f59e8d6a9c4ab35f1b18647c5b845c24","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:43:21.499334Z","signature_b64":"kMbsIB5Q1jki7ZYBWstJjhSPuvUR6aeeMrsC3Aebc3uhtq94Jq7RnArSFi/E/+pgcmkDMso/sYOpjPu9vmuFBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0d673b02209b8e9f9352b69bfdc3dc79f59e8d6a9c4ab35f1b18647c5b845c24","last_reissued_at":"2026-05-18T01:43:21.498831Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:43:21.498831Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1404.7712","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":"2026-05-18T01:43:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EO6sKXKgCPhnEa1eF2Ad99Dhmgfubh/38V7jHqo1QBI/u8vQum8OsjNrygLECZxy+q1ddpaom4lQPF1w6T6TAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T02:48:02.347231Z"},"content_sha256":"72a7eb6988a4cf5d1fc80e67928f55768912c1e6c84d0b2368230c282012c118","schema_version":"1.0","event_id":"sha256:72a7eb6988a4cf5d1fc80e67928f55768912c1e6c84d0b2368230c282012c118"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:BVTTWARATOHJ7E2SW2N73Q64PH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"CCD Washington photometry of four poorly studied open clusters in the two inner quadrants of the galactic plane","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. V. Ahumada, J. J. Claria, M. C. Parisi, M. Oddone, N. Marcionni, T. Palma","submitted_at":"2014-04-30T13:07:40Z","abstract_excerpt":"Complementing our Washington photometric studies on Galactic open clusters (OCs), we now focus on four poorly studied OCs located in the first and fourth Galactic quadrants, namely BH 84, NGC 5381, BH 211 and Czernik 37. We have obtained CCD photometry in the Washington system $C$ and $T_1$ passbands down to $T_1$ $\\sim$ 18.5 magnitudes for these four clusters. Their positions and sizes were determined using the stellar density radial profiles. We derived reddening, distance, age and metallicity of the clusters from extracted $(C-T_1,T_1)$ color-magnitude diagrams (CMDs), using theoretical iso"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.7712","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":"2026-05-18T01:43:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"a7GlqnlXtnetOu4jjL1luKKyMwse0MH2jLtum4QHmFPazDnLH7SRVSYVlI9occNR9yBkiTyjaNS0jNoMgk8aAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T02:48:02.347634Z"},"content_sha256":"1662b29b8fe591a6fecbd65d871372213ff4a5583548026fdaa433c0253b8cae","schema_version":"1.0","event_id":"sha256:1662b29b8fe591a6fecbd65d871372213ff4a5583548026fdaa433c0253b8cae"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BVTTWARATOHJ7E2SW2N73Q64PH/bundle.json","state_url":"https://pith.science/pith/BVTTWARATOHJ7E2SW2N73Q64PH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BVTTWARATOHJ7E2SW2N73Q64PH/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":"2026-05-31T02:48:02Z","links":{"resolver":"https://pith.science/pith/BVTTWARATOHJ7E2SW2N73Q64PH","bundle":"https://pith.science/pith/BVTTWARATOHJ7E2SW2N73Q64PH/bundle.json","state":"https://pith.science/pith/BVTTWARATOHJ7E2SW2N73Q64PH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BVTTWARATOHJ7E2SW2N73Q64PH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:BVTTWARATOHJ7E2SW2N73Q64PH","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":"645cb9ab7ea9d778e5ca9e73d03b7d7c5edfaac40f6e8b405c8d2ed30e3a9802","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-04-30T13:07:40Z","title_canon_sha256":"df838d5d667d61da655da2cbb8407475c6dab7882b62e026e61b17691529da5e"},"schema_version":"1.0","source":{"id":"1404.7712","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1404.7712","created_at":"2026-05-18T01:43:21Z"},{"alias_kind":"arxiv_version","alias_value":"1404.7712v1","created_at":"2026-05-18T01:43:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.7712","created_at":"2026-05-18T01:43:21Z"},{"alias_kind":"pith_short_12","alias_value":"BVTTWARATOHJ","created_at":"2026-05-18T12:28:22Z"},{"alias_kind":"pith_short_16","alias_value":"BVTTWARATOHJ7E2S","created_at":"2026-05-18T12:28:22Z"},{"alias_kind":"pith_short_8","alias_value":"BVTTWARA","created_at":"2026-05-18T12:28:22Z"}],"graph_snapshots":[{"event_id":"sha256:1662b29b8fe591a6fecbd65d871372213ff4a5583548026fdaa433c0253b8cae","target":"graph","created_at":"2026-05-18T01:43:21Z","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":"Complementing our Washington photometric studies on Galactic open clusters (OCs), we now focus on four poorly studied OCs located in the first and fourth Galactic quadrants, namely BH 84, NGC 5381, BH 211 and Czernik 37. We have obtained CCD photometry in the Washington system $C$ and $T_1$ passbands down to $T_1$ $\\sim$ 18.5 magnitudes for these four clusters. Their positions and sizes were determined using the stellar density radial profiles. We derived reddening, distance, age and metallicity of the clusters from extracted $(C-T_1,T_1)$ color-magnitude diagrams (CMDs), using theoretical iso","authors_text":"A. V. Ahumada, J. J. Claria, M. C. Parisi, M. Oddone, N. Marcionni, T. Palma","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-04-30T13:07:40Z","title":"CCD Washington photometry of four poorly studied open clusters in the two inner quadrants of the galactic plane"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.7712","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":"sha256:72a7eb6988a4cf5d1fc80e67928f55768912c1e6c84d0b2368230c282012c118","target":"record","created_at":"2026-05-18T01:43:21Z","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":"645cb9ab7ea9d778e5ca9e73d03b7d7c5edfaac40f6e8b405c8d2ed30e3a9802","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-04-30T13:07:40Z","title_canon_sha256":"df838d5d667d61da655da2cbb8407475c6dab7882b62e026e61b17691529da5e"},"schema_version":"1.0","source":{"id":"1404.7712","kind":"arxiv","version":1}},"canonical_sha256":"0d673b02209b8e9f9352b69bfdc3dc79f59e8d6a9c4ab35f1b18647c5b845c24","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0d673b02209b8e9f9352b69bfdc3dc79f59e8d6a9c4ab35f1b18647c5b845c24","first_computed_at":"2026-05-18T01:43:21.498831Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:43:21.498831Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kMbsIB5Q1jki7ZYBWstJjhSPuvUR6aeeMrsC3Aebc3uhtq94Jq7RnArSFi/E/+pgcmkDMso/sYOpjPu9vmuFBg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:43:21.499334Z","signed_message":"canonical_sha256_bytes"},"source_id":"1404.7712","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:72a7eb6988a4cf5d1fc80e67928f55768912c1e6c84d0b2368230c282012c118","sha256:1662b29b8fe591a6fecbd65d871372213ff4a5583548026fdaa433c0253b8cae"],"state_sha256":"644096def3b34d96d34a5e3058c0749ede5bc7048ae686172f7cfca29cf9041d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cN701E2i/hmPSctEqY/YgCLwaGu5K7OzF9bccfKaYiklDoqkRMWyk1QLjcPUg1Vja/3q3/ckBN1U/nRoTKTOAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T02:48:02.350301Z","bundle_sha256":"24fc5bd49489664715f5ec0a3b2518f5021e4a242870e40064e1c1acfa0fed97"}}