Yè Xīn () was a Chinese landscape painter during the Qing dynasty (1644–1912), one of the Eight Masters of Nanjing. His specific years of birth and death are not known. Ye was born in Huating in Jian
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44a9a373b6306fbcd75064751a0be507b69f7ac0ac5096db042c3d0fdc1d27b1. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f024213a-af7c-48c7-b2d3-45e7cb3361e7.json and https://artists.proofprofile.net/proofs/artist/f024213a-af7c-48c7-b2d3-45e7cb3361e7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x259eb251c737edd0101a9b2fede81c11e363fe72d2c1d829c7b0661f7ed23108. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEP2133817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3849a36b1af2fe2015f1206347d64326d8291f627fe8cfb179c292174b1fae08. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6XW2349743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a754533327a12fc9a51a64786511cbe908f2b89e55d04fafa8a608d78696836. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6XY2306590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f153c135eb726cf2805d0e67de5bfcf7a2582761eecffbf021fbd6d2295c9b9. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6TI2346497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6ab9fa624b7a8392d3e0aef8f3c676152cc5bc46f4400dba1118a24ba88c3cf. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6TI2383262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f3fd5f0212ed02ddc8e6fe9c2de6ddd13cc8865271463a31468b00233762d0c. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6XW2352965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eaec0be0356e449159510532c26ad1e347d655d386ffbdfa4f99ffb57da5577. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6SA2314892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59cedaa78af8caf2ea9771d69ab6b6137c9fb428492191b1c799b83a6b865743. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6TI2356822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd646bc5a8b31457d58f7893750309c46366c21942883e03f70f260f625c32e12. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6XY2309379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b77b4d77c947b8c6610fdc410d00474d2aa804926b23ffb8befce4eaab781fd. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6TI2352996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98313120d79bfdc7efa514a147408840f450f99fa98bf9b2d20628f23375a44a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6XW2374660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x009bd6269f7a8d8fcf533e2e73786557931eea7a8e673867ca6b9154bb6cdbba. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6TI2356077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0166fc3ec67b07962c4ec831f6038d204ee1a403ceeed6538edb0cb02df76a0d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6TI2317114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26e2037d58b343de0056d908261f28b9a02a40ee4bbb8b62f19d70cd42d919d5. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6TI2397014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc6b008cd51ef32de42939ac913299e51097936c40754b3c0d86fc1ae54f77f. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6TI2367654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd4bae9caf144867a9b1f925a06f72b3ffba6e47f10eff9d9ef6b1ef1e8ac887. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6XW2302611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19deec5c6010577fdf43848f99ee98a000659f9c3ae9fd803fe0faa9704f9a0e. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMHN2427128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd70f7658399db0c57051672601af298bb1196b5128475245277dd08c33e73b. Chain 2 (Bitcoin): anchored in block 958579 (2026-07-18T16:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM42K2407645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c7b9410b546b2abe1350467b5db1927b72b889ed58e0f9570b37f8ba54c6234. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZS642403968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x398eb846fe4a1408f2002edf35533a5cb1376acd283e446727b760c7da859645. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMHK2406568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78474672108ffc103e65f28371c27ee8acb9c34005960471bd78dda61d11f1f4. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMHP2529335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x554173d2f473695f4b41e8b802559597d7be1889888cd427ec55f2fcd570cef3. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMHK2505780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64e72808124762e3d1b9b1b20d8ebadcbbe7abcc14ebce9905a91b55f580479. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMHM2527929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c1a5e0b0475bc5d449ec8d562d14c8613e589b19c2c64bdefd1439e1a6bfe85. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMHK2554086.