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 0x3f4525688c529facf2fbbaf20792ad6edb0ea9d8119bd05376f76830ec39e88b. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2c5c5e6c-35ca-41af-9c2b-c474fea8fe2c.json and https://artists.proofprofile.net/proofs/artist/2c5c5e6c-35ca-41af-9c2b-c474fea8fe2c.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 0xacdf1d0316333b7ff89aad690a728e3e147ace25be6f5e9d210fd7a44ce5a078. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/TCACE1567858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6afd37169cd88787bf13a8c3e8ca6cbcfd9aadc1879c6719c670bc6d6488ce4e. 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/USL4Q2109601.
Поцелуй меня, я - ирландец (feat. В. Кристовский)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37fa6248562b3f207a6ee68a9faf5657746b17ca2f9789fc797f38581f52e3c7. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T03:52:48Z), 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/USCGJ1630657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e2dfdeb8490b55bc5ceead522fafa633c85d20fe77afed7f740218b9bb6205a. 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/USCGJ1630660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x575378a1f774ada0c311a59066e64adac71fcd85eff9b8a88163e426af707dee. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/USHM91714343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17095f4840b03cc53debde00e80d4cfc6d96db4bbd60e787a8e6e0b3dc41f30c. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T02:33:40Z), 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/USHM91714346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x766eed15bedc07af6cd87e72822e37e49420681583578e6854b9ae4c5620ffe5. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T10:50:47Z), 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/USHM91714348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e91080914a2cec454debe3dac6305359979f55268f7c73a02af7124556ccaf. 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/USHM81970395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65efc52ba07b9361eb3691db9e84cc239ddfb400ffa0d6af3ddd6e1b0da31ffe. 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/USHM81970397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d16a7405f91e93cf4ac1e7603f116f34d8973d5bb8f49c793bb1cd970aa12d2. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USHM81970401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1d9ef0f1cb2cebe9b29d444e2953436109c543beed18c548ada575e3362bdc1. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/USCGJ2191142.
Весьма вероятные приключения Морского Конька и его невозможной команды
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd409c5799e0d7deb0b07b4165d1130dbf0918b363bef0fdc819f1af380cd6b25. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/AEA2W2132829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7fdd75e9f2602efcf0df7a4fb18058c5cf05193e20a841c2cc32313d394cdd. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:29:24Z), 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/AEA2W2132836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1279db650c33e1003aca955af533f0b8fe3bc449934bfa535235e532cd65d41c. 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/AEA2W2132839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c520f738be788d60673e4dcb7cf97f4b583c6c575a17366dc969f193c39684a. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/AEA2W2132840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c324eed67b4f1d4d0a869fd26261b05b3814c0f08056ac9b40b863f9014b1b1. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/AEA2W2132842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x733df8e327d107bca1f73af774d309002f162bb850de089fef5dbd45191379e1. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:28:14Z), 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/QZGLS2575088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7980d244f3c63bbbd764360f4ecca5257ddb420815558c24f4e62aae63771fb. 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/QZNJX2511909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac94ea45fc71876f960e8cc57b6b2195995ec9ec95855a5a47b949f3e10a1338. 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/QZNJX2511912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46bc60b689e1bf7fdac2805b0f8819950aa04ae50ac6722af83e5e11ca0b7a0e. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:23:25Z), 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/QZNJX2511913.