{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:L7ZLGF437E4NLHJK6WQAADC7S3","short_pith_number":"pith:L7ZLGF43","canonical_record":{"source":{"id":"1705.02549","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-05-07T02:16:49Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"747ac53d75f204c922433cb833b8dcb26a89010fd917310e8000820d2ad76b01","abstract_canon_sha256":"8676967a5798f9216d43cd893322004db028ae4689ce8df85e6444f51022934d"},"schema_version":"1.0"},"canonical_sha256":"5ff2b3179bf938d59d2af5a0000c5f96c5a44d690be17605e347d4c7a4bdbced","source":{"kind":"arxiv","id":"1705.02549","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.02549","created_at":"2026-05-18T00:39:35Z"},{"alias_kind":"arxiv_version","alias_value":"1705.02549v1","created_at":"2026-05-18T00:39:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.02549","created_at":"2026-05-18T00:39:35Z"},{"alias_kind":"pith_short_12","alias_value":"L7ZLGF437E4N","created_at":"2026-05-18T12:31:28Z"},{"alias_kind":"pith_short_16","alias_value":"L7ZLGF437E4NLHJK","created_at":"2026-05-18T12:31:28Z"},{"alias_kind":"pith_short_8","alias_value":"L7ZLGF43","created_at":"2026-05-18T12:31:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:L7ZLGF437E4NLHJK6WQAADC7S3","target":"record","payload":{"canonical_record":{"source":{"id":"1705.02549","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-05-07T02:16:49Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"747ac53d75f204c922433cb833b8dcb26a89010fd917310e8000820d2ad76b01","abstract_canon_sha256":"8676967a5798f9216d43cd893322004db028ae4689ce8df85e6444f51022934d"},"schema_version":"1.0"},"canonical_sha256":"5ff2b3179bf938d59d2af5a0000c5f96c5a44d690be17605e347d4c7a4bdbced","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:39:35.278439Z","signature_b64":"Q7V7P4cNjW8OvfFsaupBSLEx2IkRtLiSw0h6TpwmpQxx7OlbTXjVVWo/xOKiqQq+LmDR7MwUbsKgZOkLxuNhBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5ff2b3179bf938d59d2af5a0000c5f96c5a44d690be17605e347d4c7a4bdbced","last_reissued_at":"2026-05-18T00:39:35.277819Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:39:35.277819Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1705.02549","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":"2026-05-18T00:39:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yEbMcDTr73cH9WNIqkkFktmSAiyKGFF42r85/i8/klTHWGdC3Icb88rQnvffZLdmlFdgYNeqFPPTuK9y6XjGBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T07:37:31.010568Z"},"content_sha256":"8919f10ca0c8a68f4bd1a8e5939bb32e0b48cc0b1494262fa0fd17f7d18b2ae4","schema_version":"1.0","event_id":"sha256:8919f10ca0c8a68f4bd1a8e5939bb32e0b48cc0b1494262fa0fd17f7d18b2ae4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:L7ZLGF437E4NLHJK6WQAADC7S3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"High-mass Starless Clumps in the inner Galactic Plane: the Sample and Dust Properties","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"Annie Zavagno, Christian Henkel, Hong-Li Liu, Jinghua Yuan, Jin-Zeng Li, Ke Wang, Neal J. Evans II, Simon P. Ellingsen, Tie Liu, Yuefang Wu","submitted_at":"2017-05-07T02:16:49Z","abstract_excerpt":"We report a sample of 463 high-mass starless clump (HMSC) candidates within $-60\\deg<l<60\\deg$ and $-1\\deg<b<1\\deg$. This sample has been singled out from 10861 ATLASGAL clumps. All of these sources are not associated with any known star-forming activities collected in SIMBAD and young stellar objects identified using color-based criteria. We also make sure that the HMSC candidates have neither point sources at 24 and 70 \\micron~nor strong extended emission at 24 $\\mu$m. Most of the identified HMSCs are infrared ($\\le24$ $\\mu$m) dark and some are even dark at 70 $\\mu$m. Their distribution show"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.02549","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":"2026-05-18T00:39:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"p6/Grac85s1rXCyi7kc1UofBArkpCM6Pam7V12el2t/bQCLihl/mKjh/Afq5Bi3YT8z52pjcIq1dOtUElAyrCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T07:37:31.011236Z"},"content_sha256":"99b004dada8354da8c757258af6b76447aaa78f8af9eef15c2ef16a2bd16aebd","schema_version":"1.0","event_id":"sha256:99b004dada8354da8c757258af6b76447aaa78f8af9eef15c2ef16a2bd16aebd"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/L7ZLGF437E4NLHJK6WQAADC7S3/bundle.json","state_url":"https://pith.science/pith/L7ZLGF437E4NLHJK6WQAADC7S3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/L7ZLGF437E4NLHJK6WQAADC7S3/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":"2026-05-26T07:37:31Z","links":{"resolver":"https://pith.science/pith/L7ZLGF437E4NLHJK6WQAADC7S3","bundle":"https://pith.science/pith/L7ZLGF437E4NLHJK6WQAADC7S3/bundle.json","state":"https://pith.science/pith/L7ZLGF437E4NLHJK6WQAADC7S3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/L7ZLGF437E4NLHJK6WQAADC7S3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:L7ZLGF437E4NLHJK6WQAADC7S3","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":"8676967a5798f9216d43cd893322004db028ae4689ce8df85e6444f51022934d","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-05-07T02:16:49Z","title_canon_sha256":"747ac53d75f204c922433cb833b8dcb26a89010fd917310e8000820d2ad76b01"},"schema_version":"1.0","source":{"id":"1705.02549","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.02549","created_at":"2026-05-18T00:39:35Z"},{"alias_kind":"arxiv_version","alias_value":"1705.02549v1","created_at":"2026-05-18T00:39:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.02549","created_at":"2026-05-18T00:39:35Z"},{"alias_kind":"pith_short_12","alias_value":"L7ZLGF437E4N","created_at":"2026-05-18T12:31:28Z"},{"alias_kind":"pith_short_16","alias_value":"L7ZLGF437E4NLHJK","created_at":"2026-05-18T12:31:28Z"},{"alias_kind":"pith_short_8","alias_value":"L7ZLGF43","created_at":"2026-05-18T12:31:28Z"}],"graph_snapshots":[{"event_id":"sha256:99b004dada8354da8c757258af6b76447aaa78f8af9eef15c2ef16a2bd16aebd","target":"graph","created_at":"2026-05-18T00:39:35Z","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 report a sample of 463 high-mass starless clump (HMSC) candidates within $-60\\deg<l<60\\deg$ and $-1\\deg<b<1\\deg$. This sample has been singled out from 10861 ATLASGAL clumps. All of these sources are not associated with any known star-forming activities collected in SIMBAD and young stellar objects identified using color-based criteria. We also make sure that the HMSC candidates have neither point sources at 24 and 70 \\micron~nor strong extended emission at 24 $\\mu$m. Most of the identified HMSCs are infrared ($\\le24$ $\\mu$m) dark and some are even dark at 70 $\\mu$m. Their distribution show","authors_text":"Annie Zavagno, Christian Henkel, Hong-Li Liu, Jinghua Yuan, Jin-Zeng Li, Ke Wang, Neal J. Evans II, Simon P. Ellingsen, Tie Liu, Yuefang Wu","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-05-07T02:16:49Z","title":"High-mass Starless Clumps in the inner Galactic Plane: the Sample and Dust Properties"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.02549","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":"sha256:8919f10ca0c8a68f4bd1a8e5939bb32e0b48cc0b1494262fa0fd17f7d18b2ae4","target":"record","created_at":"2026-05-18T00:39:35Z","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":"8676967a5798f9216d43cd893322004db028ae4689ce8df85e6444f51022934d","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-05-07T02:16:49Z","title_canon_sha256":"747ac53d75f204c922433cb833b8dcb26a89010fd917310e8000820d2ad76b01"},"schema_version":"1.0","source":{"id":"1705.02549","kind":"arxiv","version":1}},"canonical_sha256":"5ff2b3179bf938d59d2af5a0000c5f96c5a44d690be17605e347d4c7a4bdbced","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5ff2b3179bf938d59d2af5a0000c5f96c5a44d690be17605e347d4c7a4bdbced","first_computed_at":"2026-05-18T00:39:35.277819Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:39:35.277819Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Q7V7P4cNjW8OvfFsaupBSLEx2IkRtLiSw0h6TpwmpQxx7OlbTXjVVWo/xOKiqQq+LmDR7MwUbsKgZOkLxuNhBA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:39:35.278439Z","signed_message":"canonical_sha256_bytes"},"source_id":"1705.02549","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8919f10ca0c8a68f4bd1a8e5939bb32e0b48cc0b1494262fa0fd17f7d18b2ae4","sha256:99b004dada8354da8c757258af6b76447aaa78f8af9eef15c2ef16a2bd16aebd"],"state_sha256":"d95d109ea4503a11bcebc14ba5bd7d5d383e8263a20acc905fb0cbbaac2780b0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QL1As5Knnu+daOI14JlXsZs1D/Mc0EzePQQi3AHeNmMy7EroXyTby6H6RDbYRT2jC9HVoAlsBBD2g7FTq2yrCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T07:37:31.015304Z","bundle_sha256":"2d1414f7005a7d33a9910657aa148827bcd3cb71424e98e9d973408282b17401"}}