{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:JOG4FPQTLOPUZTLJSRH6E7VEAW","short_pith_number":"pith:JOG4FPQT","canonical_record":{"source":{"id":"1112.4058","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-12-17T14:34:25Z","cross_cats_sorted":[],"title_canon_sha256":"040c15644dc5113fa8a0dcedb7709aa2516ce2e02580af317069973c4d2f6e8f","abstract_canon_sha256":"aa2bb4f0be7ca7f242aba1a25eee018b4b46b12997cd9616a2f8c0aaa1816311"},"schema_version":"1.0"},"canonical_sha256":"4b8dc2be135b9f4ccd69944fe27ea405ba28c7d356964f6b1ad6e37f049b87ac","source":{"kind":"arxiv","id":"1112.4058","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1112.4058","created_at":"2026-05-18T01:59:06Z"},{"alias_kind":"arxiv_version","alias_value":"1112.4058v1","created_at":"2026-05-18T01:59:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1112.4058","created_at":"2026-05-18T01:59:06Z"},{"alias_kind":"pith_short_12","alias_value":"JOG4FPQTLOPU","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_16","alias_value":"JOG4FPQTLOPUZTLJ","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_8","alias_value":"JOG4FPQT","created_at":"2026-05-18T12:26:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:JOG4FPQTLOPUZTLJSRH6E7VEAW","target":"record","payload":{"canonical_record":{"source":{"id":"1112.4058","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-12-17T14:34:25Z","cross_cats_sorted":[],"title_canon_sha256":"040c15644dc5113fa8a0dcedb7709aa2516ce2e02580af317069973c4d2f6e8f","abstract_canon_sha256":"aa2bb4f0be7ca7f242aba1a25eee018b4b46b12997cd9616a2f8c0aaa1816311"},"schema_version":"1.0"},"canonical_sha256":"4b8dc2be135b9f4ccd69944fe27ea405ba28c7d356964f6b1ad6e37f049b87ac","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:59:06.248963Z","signature_b64":"YrElhZoUnvqq25OZ1rquvvsvZjDTEevQl97ciW3WCPIP78jzw67vliBKLsJOS9n7ip6EZeEw/YXIkvxg15EoCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4b8dc2be135b9f4ccd69944fe27ea405ba28c7d356964f6b1ad6e37f049b87ac","last_reissued_at":"2026-05-18T01:59:06.248374Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:59:06.248374Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1112.4058","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":"2026-05-18T01:59:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yNz3OAr+22qPHnAuK90/g+IV0z5TXwsRQB06OACpwNiuLvbfqtAYpH4hquzjUi2oqNzNHINxPqCIp0nnQ375AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T12:03:34.966313Z"},"content_sha256":"5a58f2e166dbf2af1295f98920cd5ad724ce1cd1773050d6965e832a5e1cb5c1","schema_version":"1.0","event_id":"sha256:5a58f2e166dbf2af1295f98920cd5ad724ce1cd1773050d6965e832a5e1cb5c1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:JOG4FPQTLOPUZTLJSRH6E7VEAW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Do Disk Galaxies with Abnormally Low Mass-to-Light Ratios Exist?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"A. S. Saburova, A. V. Zasov, D. V. Bizyaev","submitted_at":"2011-12-17T14:34:25Z","abstract_excerpt":"We performed the photometric B, V and R observations of nine disk galaxies that were suspected in having abnormally low total mass-to-light (M/L) ratios for their observed color indices. We use our surface photometry data to analyze the possible reasons for the anomalous M/L. We infer that in most cases this is a result of errors in photometry or rotational velocity, however for some galaxies we cannot exclude the real peculiarities of the galactic stellar population. The comparison of the photometric and dynamical mass estimates in the disk shows that the low M/L values for a given color of d"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1112.4058","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":"2026-05-18T01:59:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"M+YW2TiTMRpqJCwaurB8GROSYGjiJFZn1eDdAomy0wTYtwZ4KwirhG/BVfxfIsIZcbfu2YUmzjK7KYeaUq7uCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T12:03:34.966668Z"},"content_sha256":"f4fca8758c38eb81a275a6f64d7aa92dc445b6b913cb8a167542500fa7c30d65","schema_version":"1.0","event_id":"sha256:f4fca8758c38eb81a275a6f64d7aa92dc445b6b913cb8a167542500fa7c30d65"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JOG4FPQTLOPUZTLJSRH6E7VEAW/bundle.json","state_url":"https://pith.science/pith/JOG4FPQTLOPUZTLJSRH6E7VEAW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JOG4FPQTLOPUZTLJSRH6E7VEAW/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":"2026-06-22T12:03:34Z","links":{"resolver":"https://pith.science/pith/JOG4FPQTLOPUZTLJSRH6E7VEAW","bundle":"https://pith.science/pith/JOG4FPQTLOPUZTLJSRH6E7VEAW/bundle.json","state":"https://pith.science/pith/JOG4FPQTLOPUZTLJSRH6E7VEAW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JOG4FPQTLOPUZTLJSRH6E7VEAW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:JOG4FPQTLOPUZTLJSRH6E7VEAW","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":"aa2bb4f0be7ca7f242aba1a25eee018b4b46b12997cd9616a2f8c0aaa1816311","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-12-17T14:34:25Z","title_canon_sha256":"040c15644dc5113fa8a0dcedb7709aa2516ce2e02580af317069973c4d2f6e8f"},"schema_version":"1.0","source":{"id":"1112.4058","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1112.4058","created_at":"2026-05-18T01:59:06Z"},{"alias_kind":"arxiv_version","alias_value":"1112.4058v1","created_at":"2026-05-18T01:59:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1112.4058","created_at":"2026-05-18T01:59:06Z"},{"alias_kind":"pith_short_12","alias_value":"JOG4FPQTLOPU","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_16","alias_value":"JOG4FPQTLOPUZTLJ","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_8","alias_value":"JOG4FPQT","created_at":"2026-05-18T12:26:32Z"}],"graph_snapshots":[{"event_id":"sha256:f4fca8758c38eb81a275a6f64d7aa92dc445b6b913cb8a167542500fa7c30d65","target":"graph","created_at":"2026-05-18T01:59:06Z","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":"We performed the photometric B, V and R observations of nine disk galaxies that were suspected in having abnormally low total mass-to-light (M/L) ratios for their observed color indices. We use our surface photometry data to analyze the possible reasons for the anomalous M/L. We infer that in most cases this is a result of errors in photometry or rotational velocity, however for some galaxies we cannot exclude the real peculiarities of the galactic stellar population. The comparison of the photometric and dynamical mass estimates in the disk shows that the low M/L values for a given color of d","authors_text":"A. S. Saburova, A. V. Zasov, D. V. Bizyaev","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-12-17T14:34:25Z","title":"Do Disk Galaxies with Abnormally Low Mass-to-Light Ratios Exist?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1112.4058","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":"sha256:5a58f2e166dbf2af1295f98920cd5ad724ce1cd1773050d6965e832a5e1cb5c1","target":"record","created_at":"2026-05-18T01:59:06Z","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":"aa2bb4f0be7ca7f242aba1a25eee018b4b46b12997cd9616a2f8c0aaa1816311","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-12-17T14:34:25Z","title_canon_sha256":"040c15644dc5113fa8a0dcedb7709aa2516ce2e02580af317069973c4d2f6e8f"},"schema_version":"1.0","source":{"id":"1112.4058","kind":"arxiv","version":1}},"canonical_sha256":"4b8dc2be135b9f4ccd69944fe27ea405ba28c7d356964f6b1ad6e37f049b87ac","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4b8dc2be135b9f4ccd69944fe27ea405ba28c7d356964f6b1ad6e37f049b87ac","first_computed_at":"2026-05-18T01:59:06.248374Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:59:06.248374Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YrElhZoUnvqq25OZ1rquvvsvZjDTEevQl97ciW3WCPIP78jzw67vliBKLsJOS9n7ip6EZeEw/YXIkvxg15EoCw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:59:06.248963Z","signed_message":"canonical_sha256_bytes"},"source_id":"1112.4058","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5a58f2e166dbf2af1295f98920cd5ad724ce1cd1773050d6965e832a5e1cb5c1","sha256:f4fca8758c38eb81a275a6f64d7aa92dc445b6b913cb8a167542500fa7c30d65"],"state_sha256":"411af25e3f04347349d33c98f512785df628a968691376c539d639f65940825b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zMA7kcLTEXLVWL/n/ltJUlAhZurnhAisnDEfB3OZYrVcycu4viIilHB4bnG9dkdSc/wdf/P5PV6rK/rfrXTkCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-22T12:03:34.968597Z","bundle_sha256":"b2bff3ed93468f52eb76dd1fe26b19e40b977046607b30609fec678cf5613f27"}}