Yao Yi (姚顗) (866Old History of the Five Dynasties, vol. 92. – November 8, 940Old History of the Five Dynasties, vol. 79.Academia Sinica Chinese-Western Calendar Converter.), courtesy name Bozhen (伯真)
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f34c3b4604b10a4c1fc0f1d8c270ac3d83ce6bd8cc78fbaa26d581e157f1404. Chain 2 (Bitcoin): anchored in block 953759 (2026-06-15T08:04:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b665b8a7-0091-4630-b627-e2fffae1efa0.json and https://artists.proofprofile.net/proofs/artist/b665b8a7-0091-4630-b627-e2fffae1efa0.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad9255652b6347296320b33934f052db8f888247572e859a882be3424d80f606. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/MYMT17700623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd35691d8be53713c8119cca5cb68ff5b831fd01f983d52a822f514517d702753. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/MYMT17700613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f8815dcb4f1b52de4ccd08e56963a8c14338ef38e50b60618003408a6782e32. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/MYNS11031237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x833d878db77ac294078357cb6fe7d65eac1214070397a553e018ce27876abb1a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/MYNS11031238.
De Dao Ni De Ren Que De Bu Dao Ni De Xin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa10dfd2799b82c79564fe2e62fceceab3c92de83205b10f6a080e5ac8de1c113. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/MYNS10930551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b373475c13c31f6b926148cada585aed07b28a2e8a82576d1ced5affbfbda1. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/MYNS10930558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0131e50fff0d570af19e2af27543654963027ac25584411c9748eacb9407899d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/MYNS10930559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x599e195843982c715326fbdb27344e70d7d54a2b96d390d2a3940b9a6c42ea16. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/MYNS10930553.
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 0x944452833537f50736f23da99ddd067062329afe1416965191f07ffa2e0b9179. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/MYNS10870138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9e5214eab5495b6cbb2ddd351b5c106900621b9cfb006cd5dea9ace29096d09. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/MYNS10870145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6cb4ced92162c00685de2f7a1049f4bae774faf988037aa6db314c22abaeddf. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/MYNS10870146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8666996a72dad110c7c8b30864d4f3abc901bce706a84c7a50663561e093e303. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/MYNS10870142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62a3b59e70806ffc995c81ea5e795461d26c2feabb5a8a26252446cda04e58d8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/MYLR10820055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85064d5eca891a7b6e83bf04b8e38ee0fc43dba148d1a4f4c0eff2f379d66c3f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/MYLR10820056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3fbbc706dedf82833867283b01bada9a7cda9dd052291726d27428c2f11a278. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/MYLR10820057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1807171e7a6aec546693b2b2138b353999126feaa34bbde0460e2b8dea65d4b9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/MYLR10820058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c0fa8b0cb94eb25ea483161d0d3eaa9ba6e187880014e716fe301fb1b95a26e. 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/MYLR10820060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0740a6952194489b94f2051f0de264aef63027d9a634dd84185c0533b1eb52bb. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/MYLR10820061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c17594869085aa3bca9510dcc413219fe556e8f2526d67e92138064437933dc. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/MYLR10820063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c029fff9d34716523b989e2469e5d0871f08d56cf8987ae2978536d11d4317b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/MYLR10820040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77bc1fd17e7de8d5d757856e0c37931d0e571c26285426e2f55d5bf56d1a3f1d. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/MYLR10820066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fcc5d4651d8c1de1213e2039d5c71309fb381393e8ba51105fb0fcb6b1c05f7. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/MYLR10820069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba01936f072bb67a5ae7e7369f04e10fa6749a5a0804acfefdff852544a3a8a7. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/MYLR10820059.
Nan Fang Qun Xing Da Bai Nian - Hao Xing Fu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e9dd70bd8493041ecc2cc0500eae79e7411b7004ec920144fcfc4627779c030. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/MYNS10930563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8cf72e36ffa97b1dc541184dce4cc208b8b0d088122dc62e1e7c10e078b38f0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/MYNS10930568.