{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:HDDKUMHEL3DA7HKVEPQAEIQBIN","short_pith_number":"pith:HDDKUMHE","canonical_record":{"source":{"id":"1705.08587","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-05-24T02:34:12Z","cross_cats_sorted":[],"title_canon_sha256":"34e731e455f49e9ec38acaf10301e3ae54d8eaa0b9e7bc2902cda94e337e6e70","abstract_canon_sha256":"5c8d9c39f79ba4c957c20bab4dbc81044607791739a1537e69ce218204d51206"},"schema_version":"1.0"},"canonical_sha256":"38c6aa30e45ec60f9d5523e0022201435725daca5308534b225e403683185add","source":{"kind":"arxiv","id":"1705.08587","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.08587","created_at":"2026-05-18T00:43:24Z"},{"alias_kind":"arxiv_version","alias_value":"1705.08587v1","created_at":"2026-05-18T00:43:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.08587","created_at":"2026-05-18T00:43:24Z"},{"alias_kind":"pith_short_12","alias_value":"HDDKUMHEL3DA","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_16","alias_value":"HDDKUMHEL3DA7HKV","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_8","alias_value":"HDDKUMHE","created_at":"2026-05-18T12:31:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:HDDKUMHEL3DA7HKVEPQAEIQBIN","target":"record","payload":{"canonical_record":{"source":{"id":"1705.08587","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-05-24T02:34:12Z","cross_cats_sorted":[],"title_canon_sha256":"34e731e455f49e9ec38acaf10301e3ae54d8eaa0b9e7bc2902cda94e337e6e70","abstract_canon_sha256":"5c8d9c39f79ba4c957c20bab4dbc81044607791739a1537e69ce218204d51206"},"schema_version":"1.0"},"canonical_sha256":"38c6aa30e45ec60f9d5523e0022201435725daca5308534b225e403683185add","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:43:24.908620Z","signature_b64":"ijuoKUWhZ4HxIEt7C0kHCiGi1bIMygw3Mto0/nOy9+c6C/SbGBsFvA6IC5pPVz+VWxYghfTQWNralHWa5D3zBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"38c6aa30e45ec60f9d5523e0022201435725daca5308534b225e403683185add","last_reissued_at":"2026-05-18T00:43:24.907997Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:43:24.907997Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1705.08587","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":"2026-05-18T00:43:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pzH+U1phFXKTcgwjfqb/YOPlNIGCz1inY+UNQTj2yOn4djM8Hh54hTG9MhVuUXKxlYKQZBTlhazTYTTEsgm9Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T18:25:53.158561Z"},"content_sha256":"ffbabb2ad0d4d67cfb86bc2e3738524c16167bfa844acd2109b287ff38babab5","schema_version":"1.0","event_id":"sha256:ffbabb2ad0d4d67cfb86bc2e3738524c16167bfa844acd2109b287ff38babab5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:HDDKUMHEL3DA7HKVEPQAEIQBIN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Ages and structural and dynamical parameters of two globular clusters in the M81 group","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"2), (2) College of Astronomy, Chinese Academy of Sciences, Cuihua Du, Hu Zou, Jiali Wang, Jianghua Wu, Jundan Nie, Jun Ma (1, National Astronomical Observatories, Qirong Yuan ((1) Key Laboratory of Optical Astronomy, Song Wang, Space Sciences, Tianmeng Zhang, University of Chinese Academy of Sciences), Xiyang Peng, Xu Zhou, Zhenyu Wu, Zhiming Zhou","submitted_at":"2017-05-24T02:34:12Z","abstract_excerpt":"GC-1 and GC-2 are two globular clusters (GCs) in the remote halo of M81 and M82 in the M81 group discovered by Jang et al. using the {\\it Hubble Space Telescope} ({\\it HST}) images. These two GCs were observed as part of the Beijing--Arizona--Taiwan--Connecticut (BATC) Multicolor Sky Survey, using 14 intermediate-band filters covering a wavelength range of 4000--10000 \\AA. We accurately determine these two clusters' ages and masses by comparing their spectral energy distributions (from 2267 to 20000~{\\AA}, comprising photometric data in the near-ultraviolet of the {\\it Galaxy Evolution Explore"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.08587","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":"2026-05-18T00:43:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"D7By9IrT4kTsNGlLRy8Sb18BBo1JFeyFK5nGrFsYl+sPlyJG8yVMTqptptCtAXnzo+Wdnxk/ZIGEbqTvhZj0DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T18:25:53.158962Z"},"content_sha256":"29960b73abd483c302d6291e328f7b9607a3aa884a7a0c17420f649dc37c2849","schema_version":"1.0","event_id":"sha256:29960b73abd483c302d6291e328f7b9607a3aa884a7a0c17420f649dc37c2849"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HDDKUMHEL3DA7HKVEPQAEIQBIN/bundle.json","state_url":"https://pith.science/pith/HDDKUMHEL3DA7HKVEPQAEIQBIN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HDDKUMHEL3DA7HKVEPQAEIQBIN/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":"2026-05-31T18:25:53Z","links":{"resolver":"https://pith.science/pith/HDDKUMHEL3DA7HKVEPQAEIQBIN","bundle":"https://pith.science/pith/HDDKUMHEL3DA7HKVEPQAEIQBIN/bundle.json","state":"https://pith.science/pith/HDDKUMHEL3DA7HKVEPQAEIQBIN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HDDKUMHEL3DA7HKVEPQAEIQBIN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:HDDKUMHEL3DA7HKVEPQAEIQBIN","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":"5c8d9c39f79ba4c957c20bab4dbc81044607791739a1537e69ce218204d51206","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-05-24T02:34:12Z","title_canon_sha256":"34e731e455f49e9ec38acaf10301e3ae54d8eaa0b9e7bc2902cda94e337e6e70"},"schema_version":"1.0","source":{"id":"1705.08587","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.08587","created_at":"2026-05-18T00:43:24Z"},{"alias_kind":"arxiv_version","alias_value":"1705.08587v1","created_at":"2026-05-18T00:43:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.08587","created_at":"2026-05-18T00:43:24Z"},{"alias_kind":"pith_short_12","alias_value":"HDDKUMHEL3DA","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_16","alias_value":"HDDKUMHEL3DA7HKV","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_8","alias_value":"HDDKUMHE","created_at":"2026-05-18T12:31:18Z"}],"graph_snapshots":[{"event_id":"sha256:29960b73abd483c302d6291e328f7b9607a3aa884a7a0c17420f649dc37c2849","target":"graph","created_at":"2026-05-18T00:43:24Z","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":"GC-1 and GC-2 are two globular clusters (GCs) in the remote halo of M81 and M82 in the M81 group discovered by Jang et al. using the {\\it Hubble Space Telescope} ({\\it HST}) images. These two GCs were observed as part of the Beijing--Arizona--Taiwan--Connecticut (BATC) Multicolor Sky Survey, using 14 intermediate-band filters covering a wavelength range of 4000--10000 \\AA. We accurately determine these two clusters' ages and masses by comparing their spectral energy distributions (from 2267 to 20000~{\\AA}, comprising photometric data in the near-ultraviolet of the {\\it Galaxy Evolution Explore","authors_text":"2), (2) College of Astronomy, Chinese Academy of Sciences, Cuihua Du, Hu Zou, Jiali Wang, Jianghua Wu, Jundan Nie, Jun Ma (1, National Astronomical Observatories, Qirong Yuan ((1) Key Laboratory of Optical Astronomy, Song Wang, Space Sciences, Tianmeng Zhang, University of Chinese Academy of Sciences), Xiyang Peng, Xu Zhou, Zhenyu Wu, Zhiming Zhou","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-05-24T02:34:12Z","title":"Ages and structural and dynamical parameters of two globular clusters in the M81 group"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.08587","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:ffbabb2ad0d4d67cfb86bc2e3738524c16167bfa844acd2109b287ff38babab5","target":"record","created_at":"2026-05-18T00:43:24Z","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":"5c8d9c39f79ba4c957c20bab4dbc81044607791739a1537e69ce218204d51206","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-05-24T02:34:12Z","title_canon_sha256":"34e731e455f49e9ec38acaf10301e3ae54d8eaa0b9e7bc2902cda94e337e6e70"},"schema_version":"1.0","source":{"id":"1705.08587","kind":"arxiv","version":1}},"canonical_sha256":"38c6aa30e45ec60f9d5523e0022201435725daca5308534b225e403683185add","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"38c6aa30e45ec60f9d5523e0022201435725daca5308534b225e403683185add","first_computed_at":"2026-05-18T00:43:24.907997Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:43:24.907997Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ijuoKUWhZ4HxIEt7C0kHCiGi1bIMygw3Mto0/nOy9+c6C/SbGBsFvA6IC5pPVz+VWxYghfTQWNralHWa5D3zBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:43:24.908620Z","signed_message":"canonical_sha256_bytes"},"source_id":"1705.08587","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ffbabb2ad0d4d67cfb86bc2e3738524c16167bfa844acd2109b287ff38babab5","sha256:29960b73abd483c302d6291e328f7b9607a3aa884a7a0c17420f649dc37c2849"],"state_sha256":"0bdc78342ad3a08b42ebcccd839265746c370ae23684ca435bdf6a08b943110d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OEf0ymmEb4V2MMa+ozYRQ3tIgGHbjo372AxhX+JP8FttP3w62AIoIJJItSvCg/dAS8CcFT2VJQ3B80ZxASuWBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T18:25:53.161872Z","bundle_sha256":"39a87fe1bbb80a4a47b7a48a728015a626a3958303e17b0937b828f692cb80bd"}}