1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x51790b1effb58b3fe061b35525333b9cfae484a21786aa74e7dbb8c7c17758c8. 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/b3ba1995-b79d-4b70-b6e6-94bdee774788.json and https://artists.proofprofile.net/proofs/artist/b3ba1995-b79d-4b70-b6e6-94bdee774788.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 → block OTSBitcoinBlock must exist at that height 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 0x86de059d3dfe02e317adf95a9c8b1d108a63b2ff31a7a4d57732f57f6272669e. 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/QM4TX1747814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6055fc3d8d5b901a74c6b7d634e336ec82a743a6d6d5f499fe6bc610b7073c15. 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/QM4TX1747824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f26c4598230e41a1bec9fc41918d21635be04f388f0047c30baea271e3da63. 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/QM4TX1747825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae9851e9276f32cc11bb1f3bd1f998748f4975ac57dfffcc9b62de593d8f1510. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/LBA132100907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe71831745808a570456181209dd0151ea907984c7e1b0390eadd969cd183784. 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/LBA132100911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90ba0bbac4b54701ddad37c4e19dbe3de12fdc11efde7223c9e207a811eed3fd. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/LBA132100894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x085cb752ca4144653ca57d984cc6bf87bde83ccb1f1d31379b1e73209c055c1e. 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/LBA132100896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b3b794fe8eefeefdbe8a1858b97dbe66a5d0d018f052098f8b0bc51da94d0d. 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/LBA132100902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78c97e5f00ad9270399b88a7bb38dc12f6dcecfc039f843218e3e94fc3d0cc91. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/LBA132100930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb346f6e35c894c04911d436a4b5e345b29e0dd93bf7280fb6df6f1a6775dd1e2. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/LBA132100904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f91b0e2c62b4bdf35f810286946981e5ffcae5a34a46de33d9820d37362c7c5. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/LBA132100909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b341d4186e03a6a98fec3397310f9923c9eb5cc87a67595387e309f40c20bb5. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/LBA132100939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d14ab1325b28eaa66717579ecffe1467ed882f1fc1ca57579796b1b208f48db. 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/LBA132100918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x479b33b7dac6f88c1e650cee2018ced6f4186d383ee42df21d1e290634278b60. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/LBA132100929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d8a990720ad9f13b9501633cc3d6646e660d474e84e1b8061ff8628e40adbc1. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/LBA132100905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca805302799f1a00c7717365a964c3d5d95af7397012fcb9541777acaa3cd1b8. 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/LBA132100895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20d5f1227c335e9139e58d804d8fb4d3bdf84175d4239e543fabc6d11341e94b. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/LBA132100924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b1ef9107513062434cb3f8be1e08c7350dfc29336bcc20d3aa2a5f77a9c11a4. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/LBA132100916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f1d045c98153218584a03295c1ad4a93d31202a13f0d4d3f77e524a487ada53. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FRX282230887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3fd1d63095cdee189164f9afa05b317ce79a4a94dd91636e5b56e46620d220f. 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/LBA132501340.