{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:B2NBW2A326XKIKJ74QEAQ2KXNT","short_pith_number":"pith:B2NBW2A3","canonical_record":{"source":{"id":"2605.18665","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-05-18T17:10:03Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"a92f1246080c507e6c3c7747fce2378748a7091016bc22e9518cd77e3bff53ba","abstract_canon_sha256":"3cc6e3e1864fc41e9f4b7d3b811d636ed14c56018184615d3344cc6515d063fa"},"schema_version":"1.0"},"canonical_sha256":"0e9a1b681bd7aea4293fe4080869576ce70a91c5b231671911ac35f00958de4d","source":{"kind":"arxiv","id":"2605.18665","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.18665","created_at":"2026-05-20T00:06:13Z"},{"alias_kind":"arxiv_version","alias_value":"2605.18665v1","created_at":"2026-05-20T00:06:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.18665","created_at":"2026-05-20T00:06:13Z"},{"alias_kind":"pith_short_12","alias_value":"B2NBW2A326XK","created_at":"2026-05-20T00:06:13Z"},{"alias_kind":"pith_short_16","alias_value":"B2NBW2A326XKIKJ7","created_at":"2026-05-20T00:06:13Z"},{"alias_kind":"pith_short_8","alias_value":"B2NBW2A3","created_at":"2026-05-20T00:06:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:B2NBW2A326XKIKJ74QEAQ2KXNT","target":"record","payload":{"canonical_record":{"source":{"id":"2605.18665","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-05-18T17:10:03Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"a92f1246080c507e6c3c7747fce2378748a7091016bc22e9518cd77e3bff53ba","abstract_canon_sha256":"3cc6e3e1864fc41e9f4b7d3b811d636ed14c56018184615d3344cc6515d063fa"},"schema_version":"1.0"},"canonical_sha256":"0e9a1b681bd7aea4293fe4080869576ce70a91c5b231671911ac35f00958de4d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-20T00:06:13.636497Z","signature_b64":"LGfYfWyXhWZ6VLahnikJZDxEZdoUtgqAH1KXEsm82yHQ0ft2MvlTvzUwjILrseh/R8xiAWV2aA46iZLZyNH6AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0e9a1b681bd7aea4293fe4080869576ce70a91c5b231671911ac35f00958de4d","last_reissued_at":"2026-05-20T00:06:13.635725Z","signature_status":"signed_v1","first_computed_at":"2026-05-20T00:06:13.635725Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2605.18665","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":"2026-05-20T00:06:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nDYa8ljOuXd98TTvPSMGQyTaQhdy2egjCp+Yf5J8JcyjFfIIgFYa6lP0GIA+4a91F4S1EYj2qv0z7qg9+NrgBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T02:27:32.398368Z"},"content_sha256":"bb666af5ee4a066442087b00ba9d18d7e23426a322d5da09c29a30580a690db2","schema_version":"1.0","event_id":"sha256:bb666af5ee4a066442087b00ba9d18d7e23426a322d5da09c29a30580a690db2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:B2NBW2A326XKIKJ74QEAQ2KXNT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"CCD () photometry of the open cluster NGC 6793 and its dynamical evolution","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"Charles Bonatto, Ey\\\"up Kaan \\\"Ulgen, \\.Inci Akkaya Oralhan, Orhan G\\\"une\\c{s}, Raul Michel Murillo, Y\\\"uksel Karata\\c{s}, Zahra Al","submitted_at":"2026-05-18T17:10:03Z","abstract_excerpt":"We present new astrophysical parameters for the open cluster NGC~6793 based on new CCD $UBV(RI)_{KC}$ photometry. We derived a reddening of $E(B-V) = 0.24 \\pm 0.02$~mag and a heavy element abundance of $Z = 0.024$ ($[Fe/H] = +0.20$~dex). Padova isochrone fitting to the $V \\times (B-V)$ colour-magnitude diagram yields an intermediate age of $525 \\pm 51$~Myr and a distance modulus of $\\mu = 8.80 \\pm 0.05$~mag, corresponding to a distance of $d = 575 \\pm 58$~pc from the Sun. The core radius of NGC~6793 appears to be shrinking due to advanced dynamical evolution ($\\log\\tau_{2} = 1.13$), driven by "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.18665","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/2605.18665/integrity.json","findings":[],"available":true,"detectors_run":[{"name":"claim_evidence","ran_at":"2026-05-20T00:01:59.144756Z","status":"completed","version":"1.0.0","findings_count":0}],"snapshot_sha256":"7b2e1f6af3b52a02d16e730ef1c8a7dd7699303fd81382f6a130e710f023e562"},"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":"2026-05-20T00:06:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+s8p6q5ZXlNiRX8XDuTsJGlcpfi7tFuv6hZmSeFzdFFa0II9BWM6dkBFvvw5v92KKTszmuR7+qfxaXoNpCk1AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T02:27:32.398772Z"},"content_sha256":"8c361bc6ae9d89a10572506d4c46d20e294ef74bab218e1a44bdee643c248d0d","schema_version":"1.0","event_id":"sha256:8c361bc6ae9d89a10572506d4c46d20e294ef74bab218e1a44bdee643c248d0d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/B2NBW2A326XKIKJ74QEAQ2KXNT/bundle.json","state_url":"https://pith.science/pith/B2NBW2A326XKIKJ74QEAQ2KXNT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/B2NBW2A326XKIKJ74QEAQ2KXNT/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":"2026-06-05T02:27:32Z","links":{"resolver":"https://pith.science/pith/B2NBW2A326XKIKJ74QEAQ2KXNT","bundle":"https://pith.science/pith/B2NBW2A326XKIKJ74QEAQ2KXNT/bundle.json","state":"https://pith.science/pith/B2NBW2A326XKIKJ74QEAQ2KXNT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/B2NBW2A326XKIKJ74QEAQ2KXNT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:B2NBW2A326XKIKJ74QEAQ2KXNT","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":"3cc6e3e1864fc41e9f4b7d3b811d636ed14c56018184615d3344cc6515d063fa","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-05-18T17:10:03Z","title_canon_sha256":"a92f1246080c507e6c3c7747fce2378748a7091016bc22e9518cd77e3bff53ba"},"schema_version":"1.0","source":{"id":"2605.18665","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.18665","created_at":"2026-05-20T00:06:13Z"},{"alias_kind":"arxiv_version","alias_value":"2605.18665v1","created_at":"2026-05-20T00:06:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.18665","created_at":"2026-05-20T00:06:13Z"},{"alias_kind":"pith_short_12","alias_value":"B2NBW2A326XK","created_at":"2026-05-20T00:06:13Z"},{"alias_kind":"pith_short_16","alias_value":"B2NBW2A326XKIKJ7","created_at":"2026-05-20T00:06:13Z"},{"alias_kind":"pith_short_8","alias_value":"B2NBW2A3","created_at":"2026-05-20T00:06:13Z"}],"graph_snapshots":[{"event_id":"sha256:8c361bc6ae9d89a10572506d4c46d20e294ef74bab218e1a44bdee643c248d0d","target":"graph","created_at":"2026-05-20T00:06:13Z","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":[{"findings_count":0,"name":"claim_evidence","ran_at":"2026-05-20T00:01:59.144756Z","status":"completed","version":"1.0.0"}],"endpoint":"/pith/2605.18665/integrity.json","findings":[],"snapshot_sha256":"7b2e1f6af3b52a02d16e730ef1c8a7dd7699303fd81382f6a130e710f023e562","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present new astrophysical parameters for the open cluster NGC~6793 based on new CCD $UBV(RI)_{KC}$ photometry. We derived a reddening of $E(B-V) = 0.24 \\pm 0.02$~mag and a heavy element abundance of $Z = 0.024$ ($[Fe/H] = +0.20$~dex). Padova isochrone fitting to the $V \\times (B-V)$ colour-magnitude diagram yields an intermediate age of $525 \\pm 51$~Myr and a distance modulus of $\\mu = 8.80 \\pm 0.05$~mag, corresponding to a distance of $d = 575 \\pm 58$~pc from the Sun. The core radius of NGC~6793 appears to be shrinking due to advanced dynamical evolution ($\\log\\tau_{2} = 1.13$), driven by ","authors_text":"Charles Bonatto, Ey\\\"up Kaan \\\"Ulgen, \\.Inci Akkaya Oralhan, Orhan G\\\"une\\c{s}, Raul Michel Murillo, Y\\\"uksel Karata\\c{s}, Zahra Al","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-05-18T17:10:03Z","title":"CCD () photometry of the open cluster NGC 6793 and its dynamical evolution"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.18665","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:bb666af5ee4a066442087b00ba9d18d7e23426a322d5da09c29a30580a690db2","target":"record","created_at":"2026-05-20T00:06:13Z","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":"3cc6e3e1864fc41e9f4b7d3b811d636ed14c56018184615d3344cc6515d063fa","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2026-05-18T17:10:03Z","title_canon_sha256":"a92f1246080c507e6c3c7747fce2378748a7091016bc22e9518cd77e3bff53ba"},"schema_version":"1.0","source":{"id":"2605.18665","kind":"arxiv","version":1}},"canonical_sha256":"0e9a1b681bd7aea4293fe4080869576ce70a91c5b231671911ac35f00958de4d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0e9a1b681bd7aea4293fe4080869576ce70a91c5b231671911ac35f00958de4d","first_computed_at":"2026-05-20T00:06:13.635725Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-20T00:06:13.635725Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LGfYfWyXhWZ6VLahnikJZDxEZdoUtgqAH1KXEsm82yHQ0ft2MvlTvzUwjILrseh/R8xiAWV2aA46iZLZyNH6AQ==","signature_status":"signed_v1","signed_at":"2026-05-20T00:06:13.636497Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.18665","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bb666af5ee4a066442087b00ba9d18d7e23426a322d5da09c29a30580a690db2","sha256:8c361bc6ae9d89a10572506d4c46d20e294ef74bab218e1a44bdee643c248d0d"],"state_sha256":"c1f00160d3971971179c7d17c28444dff3967aeb82f43c9714ea871c55e0ffee"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"njLSjy1mhdAnjIjyaDCZ9ydvUabkNsxl4Ouj76Le9KaxHVSst4ieUge9OL2+MJtEBEiBirLRYJb1JrC1QGqTDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T02:27:32.400926Z","bundle_sha256":"8a547401e3287366223a044489134b627b0b9087b88eb7c032e27495827781b8"}}