{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:TCUYT6ZA5VAFTSBUNHDKMAOZ3J","short_pith_number":"pith:TCUYT6ZA","canonical_record":{"source":{"id":"1611.05044","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-11-15T21:00:02Z","cross_cats_sorted":[],"title_canon_sha256":"1622bdac9cb1972d107f9de13f6ee14cb89220a3008fa9aa0c11a0cbe62c765e","abstract_canon_sha256":"975c60d1cd15c0470c9c20825e7624d03c67c6517cc2d4b9fe53518887c4d12f"},"schema_version":"1.0"},"canonical_sha256":"98a989fb20ed4059c83469c6a601d9da5dae1b83b8d7d85423be763ce7fc4489","source":{"kind":"arxiv","id":"1611.05044","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1611.05044","created_at":"2026-05-18T00:53:06Z"},{"alias_kind":"arxiv_version","alias_value":"1611.05044v1","created_at":"2026-05-18T00:53:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1611.05044","created_at":"2026-05-18T00:53:06Z"},{"alias_kind":"pith_short_12","alias_value":"TCUYT6ZA5VAF","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_16","alias_value":"TCUYT6ZA5VAFTSBU","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_8","alias_value":"TCUYT6ZA","created_at":"2026-05-18T12:30:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:TCUYT6ZA5VAFTSBUNHDKMAOZ3J","target":"record","payload":{"canonical_record":{"source":{"id":"1611.05044","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-11-15T21:00:02Z","cross_cats_sorted":[],"title_canon_sha256":"1622bdac9cb1972d107f9de13f6ee14cb89220a3008fa9aa0c11a0cbe62c765e","abstract_canon_sha256":"975c60d1cd15c0470c9c20825e7624d03c67c6517cc2d4b9fe53518887c4d12f"},"schema_version":"1.0"},"canonical_sha256":"98a989fb20ed4059c83469c6a601d9da5dae1b83b8d7d85423be763ce7fc4489","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:53:06.760423Z","signature_b64":"chEoqe+IFZTb05SoGGV9evln1cdfI6G2eJkQRjLKDlnxpsT2MlEkJytFmmTAgugJUSUIxM5zY1i5ZDzafzbdBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"98a989fb20ed4059c83469c6a601d9da5dae1b83b8d7d85423be763ce7fc4489","last_reissued_at":"2026-05-18T00:53:06.760000Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:53:06.760000Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1611.05044","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":"2026-05-18T00:53:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nASb1MOC9YibQilUYHo3kHyhfPzYEgt+yXt94ygXzXDw+e88LzV0RI6rr6pp7+SGF0BFEI2QwAewOB5k+zPWBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T11:36:39.751791Z"},"content_sha256":"a213221351a281553b647b8536a8a2ce6398054110f32e2828d2ffb9d73eb822","schema_version":"1.0","event_id":"sha256:a213221351a281553b647b8536a8a2ce6398054110f32e2828d2ffb9d73eb822"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:TCUYT6ZA5VAFTSBUNHDKMAOZ3J","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"DUSTiNGS III: Distribution of Intermediate-Age and Old Stellar Populations in Disks and Outer Extremities of Dwarf Galaxies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Albert A. Zijlstra, Evan D. Skillman, G. C. Sloan, Iain McDonald, Jacco Th. van Loon, Kristen B. W. McQuinn, Mallory B. Mitchell, Martha L. Boyer, Martin A. T. Groenewegen, Patricia A. Whitelock, R. D. Gehrz","submitted_at":"2016-11-15T21:00:02Z","abstract_excerpt":"We have traced the spatial distributions of intermediate-age and old stars in nine dwarf galaxies in the distant parts of the Local Group, using multi-epoch 3.6 and 4.5 micron data from the DUST in Nearby Galaxies with Spitzer (DUSTiNGS) survey. Using complementary optical imaging from the Hubble Space Telescope, we identify the tip of the red giant branch (TRGB) in the 3.6 micron photometry, separating thermally-pulsating asymptotic giant branch (TP-AGB) stars from the larger red giant branch (RGB) populations. Unlike the constant TRGB in the I-band, at 3.6 micron the TRGB magnitude varies by"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1611.05044","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":"2026-05-18T00:53:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7mi+pb7DXFX3cvyzaQWc+UzhGEmh2wgLv2GwYlIZ1BPwKW93DUSpsIL20SQ4Xhg4CQPpC4TUXmVpw0EAM/gDBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T11:36:39.752498Z"},"content_sha256":"18388aa4ca872e212c16a6b8a762bb31ee145ec023a1c22366f803497486e62d","schema_version":"1.0","event_id":"sha256:18388aa4ca872e212c16a6b8a762bb31ee145ec023a1c22366f803497486e62d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TCUYT6ZA5VAFTSBUNHDKMAOZ3J/bundle.json","state_url":"https://pith.science/pith/TCUYT6ZA5VAFTSBUNHDKMAOZ3J/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TCUYT6ZA5VAFTSBUNHDKMAOZ3J/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":"2026-05-30T11:36:39Z","links":{"resolver":"https://pith.science/pith/TCUYT6ZA5VAFTSBUNHDKMAOZ3J","bundle":"https://pith.science/pith/TCUYT6ZA5VAFTSBUNHDKMAOZ3J/bundle.json","state":"https://pith.science/pith/TCUYT6ZA5VAFTSBUNHDKMAOZ3J/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TCUYT6ZA5VAFTSBUNHDKMAOZ3J/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:TCUYT6ZA5VAFTSBUNHDKMAOZ3J","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":"975c60d1cd15c0470c9c20825e7624d03c67c6517cc2d4b9fe53518887c4d12f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-11-15T21:00:02Z","title_canon_sha256":"1622bdac9cb1972d107f9de13f6ee14cb89220a3008fa9aa0c11a0cbe62c765e"},"schema_version":"1.0","source":{"id":"1611.05044","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1611.05044","created_at":"2026-05-18T00:53:06Z"},{"alias_kind":"arxiv_version","alias_value":"1611.05044v1","created_at":"2026-05-18T00:53:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1611.05044","created_at":"2026-05-18T00:53:06Z"},{"alias_kind":"pith_short_12","alias_value":"TCUYT6ZA5VAF","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_16","alias_value":"TCUYT6ZA5VAFTSBU","created_at":"2026-05-18T12:30:44Z"},{"alias_kind":"pith_short_8","alias_value":"TCUYT6ZA","created_at":"2026-05-18T12:30:44Z"}],"graph_snapshots":[{"event_id":"sha256:18388aa4ca872e212c16a6b8a762bb31ee145ec023a1c22366f803497486e62d","target":"graph","created_at":"2026-05-18T00:53:06Z","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 have traced the spatial distributions of intermediate-age and old stars in nine dwarf galaxies in the distant parts of the Local Group, using multi-epoch 3.6 and 4.5 micron data from the DUST in Nearby Galaxies with Spitzer (DUSTiNGS) survey. Using complementary optical imaging from the Hubble Space Telescope, we identify the tip of the red giant branch (TRGB) in the 3.6 micron photometry, separating thermally-pulsating asymptotic giant branch (TP-AGB) stars from the larger red giant branch (RGB) populations. Unlike the constant TRGB in the I-band, at 3.6 micron the TRGB magnitude varies by","authors_text":"Albert A. Zijlstra, Evan D. Skillman, G. C. Sloan, Iain McDonald, Jacco Th. van Loon, Kristen B. W. McQuinn, Mallory B. Mitchell, Martha L. Boyer, Martin A. T. Groenewegen, Patricia A. Whitelock, R. D. Gehrz","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-11-15T21:00:02Z","title":"DUSTiNGS III: Distribution of Intermediate-Age and Old Stellar Populations in Disks and Outer Extremities of Dwarf Galaxies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1611.05044","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:a213221351a281553b647b8536a8a2ce6398054110f32e2828d2ffb9d73eb822","target":"record","created_at":"2026-05-18T00:53:06Z","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":"975c60d1cd15c0470c9c20825e7624d03c67c6517cc2d4b9fe53518887c4d12f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-11-15T21:00:02Z","title_canon_sha256":"1622bdac9cb1972d107f9de13f6ee14cb89220a3008fa9aa0c11a0cbe62c765e"},"schema_version":"1.0","source":{"id":"1611.05044","kind":"arxiv","version":1}},"canonical_sha256":"98a989fb20ed4059c83469c6a601d9da5dae1b83b8d7d85423be763ce7fc4489","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"98a989fb20ed4059c83469c6a601d9da5dae1b83b8d7d85423be763ce7fc4489","first_computed_at":"2026-05-18T00:53:06.760000Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:53:06.760000Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"chEoqe+IFZTb05SoGGV9evln1cdfI6G2eJkQRjLKDlnxpsT2MlEkJytFmmTAgugJUSUIxM5zY1i5ZDzafzbdBA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:53:06.760423Z","signed_message":"canonical_sha256_bytes"},"source_id":"1611.05044","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a213221351a281553b647b8536a8a2ce6398054110f32e2828d2ffb9d73eb822","sha256:18388aa4ca872e212c16a6b8a762bb31ee145ec023a1c22366f803497486e62d"],"state_sha256":"9aa0b5ee0a07f893beba3f571a229a92e4c28a170326bcd6c736b1f02241660c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NAazaG4/O4qiWPONtq5wVmmOAUiaFGESElfe+GlZ03+DbN9rFERoZpUYhrg6MVC07cmDO5X2PVdmnX9gc7vJBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T11:36:39.756137Z","bundle_sha256":"dcb23d0a0a811894a28f2696b705e9f035cff82dabc36ce3155bed5b814543a7"}}