{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:VIPAXVWP2JSGPYWCEZB2KK74YM","short_pith_number":"pith:VIPAXVWP","canonical_record":{"source":{"id":"1611.09982","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-11-30T03:06:57Z","cross_cats_sorted":[],"title_canon_sha256":"6b160cb64afec0b6fc74352e2ef0820e97711a1561c66d35c13d2e1b6ee93395","abstract_canon_sha256":"a9af419fc289baa110415ab59af9ea7736cdded920c8780d87eac0f8393444ef"},"schema_version":"1.0"},"canonical_sha256":"aa1e0bd6cfd26467e2c22643a52bfcc32cfb274409c9058d98be10a90cfcece1","source":{"kind":"arxiv","id":"1611.09982","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1611.09982","created_at":"2026-05-18T00:33:52Z"},{"alias_kind":"arxiv_version","alias_value":"1611.09982v1","created_at":"2026-05-18T00:33:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1611.09982","created_at":"2026-05-18T00:33:52Z"},{"alias_kind":"pith_short_12","alias_value":"VIPAXVWP2JSG","created_at":"2026-05-18T12:30:48Z"},{"alias_kind":"pith_short_16","alias_value":"VIPAXVWP2JSGPYWC","created_at":"2026-05-18T12:30:48Z"},{"alias_kind":"pith_short_8","alias_value":"VIPAXVWP","created_at":"2026-05-18T12:30:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:VIPAXVWP2JSGPYWCEZB2KK74YM","target":"record","payload":{"canonical_record":{"source":{"id":"1611.09982","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-11-30T03:06:57Z","cross_cats_sorted":[],"title_canon_sha256":"6b160cb64afec0b6fc74352e2ef0820e97711a1561c66d35c13d2e1b6ee93395","abstract_canon_sha256":"a9af419fc289baa110415ab59af9ea7736cdded920c8780d87eac0f8393444ef"},"schema_version":"1.0"},"canonical_sha256":"aa1e0bd6cfd26467e2c22643a52bfcc32cfb274409c9058d98be10a90cfcece1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:33:52.952644Z","signature_b64":"SbHzxXknTq8vJj0XlszBM3AkglcR2NsT0qUfdUjGNFBsBGu/vrpYlTj8L9A8KyaHlqDwLETr2PoEUCq69/moBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"aa1e0bd6cfd26467e2c22643a52bfcc32cfb274409c9058d98be10a90cfcece1","last_reissued_at":"2026-05-18T00:33:52.952180Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:33:52.952180Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1611.09982","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":"2026-05-18T00:33:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5SQL4hBkcTFfWc6BM39pFNe7jIvKsW6CKTVRAK/asH55VKcpiuF9EOltyeIlqBpnqCGr5/TZGQDfzG9F32S7Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T22:13:55.211962Z"},"content_sha256":"917acca2c788822d092475b5e342b945d95b9c28ef4a262fb828afc3466ac6a6","schema_version":"1.0","event_id":"sha256:917acca2c788822d092475b5e342b945d95b9c28ef4a262fb828afc3466ac6a6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:VIPAXVWP2JSGPYWCEZB2KK74YM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Ground test of satellite constellation based quantum communication","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Bo Li, Chang Liu, Cheng-Zhi Peng, Dong-Dong Li, Ge-Sheng Pan, Guo-Liang Shentu, Hai-Lin Yong, Hui Dai, Jason S.Pelc, Jian-Wei Pan, Jian-Yu Guan, Ji-Gang Ren, Jin Lin, Juan Yin, M. M. Fejer, Qiang Zhang, Sheng-Kai Liao, Shuang-Qiang Zhao, Wei Chen, Wei-Yue Liu, Wen-Zhuo Zhang, Xiang-Bin Wang, Yang Li, Yun-Hong Gong, Ze-Hong Lin","submitted_at":"2016-11-30T03:06:57Z","abstract_excerpt":"Satellite based quantum communication has been proven as a feasible way to achieve global scale quantum communication network. Very recently, a low-Earth-orbit (LEO) satellite has been launched for this purpose. However, with a single satellite, it takes an inefficient 3-day period to provide the worldwide connectivity. On the other hand, similar to how the Iridium system functions in classic communication, satellite constellation (SC) composed of many quantum satellites, could provide global real-time quantum communication. In such a SC, most of the satellites will work in sunlight. Unfortuna"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1611.09982","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":"2026-05-18T00:33:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/wYuiISqFFhlb6Al6uCcpBivudspEYqGus8rUSuP8MDiM7WLDL4l03i7uFgRzL73xUKSMcbJrp8CVnNricfACQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T22:13:55.212311Z"},"content_sha256":"db51d817620e282507d583de3a70adea82c478331cb3e03075d13240b675a544","schema_version":"1.0","event_id":"sha256:db51d817620e282507d583de3a70adea82c478331cb3e03075d13240b675a544"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VIPAXVWP2JSGPYWCEZB2KK74YM/bundle.json","state_url":"https://pith.science/pith/VIPAXVWP2JSGPYWCEZB2KK74YM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VIPAXVWP2JSGPYWCEZB2KK74YM/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":"2026-06-02T22:13:55Z","links":{"resolver":"https://pith.science/pith/VIPAXVWP2JSGPYWCEZB2KK74YM","bundle":"https://pith.science/pith/VIPAXVWP2JSGPYWCEZB2KK74YM/bundle.json","state":"https://pith.science/pith/VIPAXVWP2JSGPYWCEZB2KK74YM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VIPAXVWP2JSGPYWCEZB2KK74YM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:VIPAXVWP2JSGPYWCEZB2KK74YM","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":"a9af419fc289baa110415ab59af9ea7736cdded920c8780d87eac0f8393444ef","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-11-30T03:06:57Z","title_canon_sha256":"6b160cb64afec0b6fc74352e2ef0820e97711a1561c66d35c13d2e1b6ee93395"},"schema_version":"1.0","source":{"id":"1611.09982","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1611.09982","created_at":"2026-05-18T00:33:52Z"},{"alias_kind":"arxiv_version","alias_value":"1611.09982v1","created_at":"2026-05-18T00:33:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1611.09982","created_at":"2026-05-18T00:33:52Z"},{"alias_kind":"pith_short_12","alias_value":"VIPAXVWP2JSG","created_at":"2026-05-18T12:30:48Z"},{"alias_kind":"pith_short_16","alias_value":"VIPAXVWP2JSGPYWC","created_at":"2026-05-18T12:30:48Z"},{"alias_kind":"pith_short_8","alias_value":"VIPAXVWP","created_at":"2026-05-18T12:30:48Z"}],"graph_snapshots":[{"event_id":"sha256:db51d817620e282507d583de3a70adea82c478331cb3e03075d13240b675a544","target":"graph","created_at":"2026-05-18T00:33:52Z","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":"Satellite based quantum communication has been proven as a feasible way to achieve global scale quantum communication network. Very recently, a low-Earth-orbit (LEO) satellite has been launched for this purpose. However, with a single satellite, it takes an inefficient 3-day period to provide the worldwide connectivity. On the other hand, similar to how the Iridium system functions in classic communication, satellite constellation (SC) composed of many quantum satellites, could provide global real-time quantum communication. In such a SC, most of the satellites will work in sunlight. Unfortuna","authors_text":"Bo Li, Chang Liu, Cheng-Zhi Peng, Dong-Dong Li, Ge-Sheng Pan, Guo-Liang Shentu, Hai-Lin Yong, Hui Dai, Jason S.Pelc, Jian-Wei Pan, Jian-Yu Guan, Ji-Gang Ren, Jin Lin, Juan Yin, M. M. Fejer, Qiang Zhang, Sheng-Kai Liao, Shuang-Qiang Zhao, Wei Chen, Wei-Yue Liu, Wen-Zhuo Zhang, Xiang-Bin Wang, Yang Li, Yun-Hong Gong, Ze-Hong Lin","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-11-30T03:06:57Z","title":"Ground test of satellite constellation based quantum communication"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1611.09982","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":"sha256:917acca2c788822d092475b5e342b945d95b9c28ef4a262fb828afc3466ac6a6","target":"record","created_at":"2026-05-18T00:33:52Z","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":"a9af419fc289baa110415ab59af9ea7736cdded920c8780d87eac0f8393444ef","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2016-11-30T03:06:57Z","title_canon_sha256":"6b160cb64afec0b6fc74352e2ef0820e97711a1561c66d35c13d2e1b6ee93395"},"schema_version":"1.0","source":{"id":"1611.09982","kind":"arxiv","version":1}},"canonical_sha256":"aa1e0bd6cfd26467e2c22643a52bfcc32cfb274409c9058d98be10a90cfcece1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"aa1e0bd6cfd26467e2c22643a52bfcc32cfb274409c9058d98be10a90cfcece1","first_computed_at":"2026-05-18T00:33:52.952180Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:33:52.952180Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SbHzxXknTq8vJj0XlszBM3AkglcR2NsT0qUfdUjGNFBsBGu/vrpYlTj8L9A8KyaHlqDwLETr2PoEUCq69/moBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:33:52.952644Z","signed_message":"canonical_sha256_bytes"},"source_id":"1611.09982","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:917acca2c788822d092475b5e342b945d95b9c28ef4a262fb828afc3466ac6a6","sha256:db51d817620e282507d583de3a70adea82c478331cb3e03075d13240b675a544"],"state_sha256":"e935278f1e5446a3c57b9e1d647680bb461d4c5220ad1f53df330b928e49b983"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UnFA3SCR4iqGsOKHUGqE7BKfr88VyHb468BZ0Gf7RqLPntt057SuNHREI5zyuCVRrzqjNERrV1RcYjeg2F1rDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T22:13:55.214543Z","bundle_sha256":"bdb2b0cf5e72182ef052a77fc1608460eb0703378ffc54bf2c1f4df17e62cfd7"}}