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 0x6270444283cf9df639b36f7f4138c0ab2be6a5cbe2631f3f1b7194a6bb17306b. 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/7344a726-e525-4429-81c8-99467e2fa87e.json and https://artists.proofprofile.net/proofs/artist/7344a726-e525-4429-81c8-99467e2fa87e.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 0x96a7e156b5ecdb635adeab3200a8ec67df3b90435ceb5d82e1a3e03e92f97e2a. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZ5FN1728949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe57e312d50468ee479f0318a142f9ae6cdc2e55b0d5d32b1e053a26c65e10eee. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-19T21:40:06Z), 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/QZ5FN1728950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf86a5a597cf7e32a1de26f85272eb6edadfeab38dcc28d2fbba0b98c81b59ec. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/QZ5FN1728951.
Journey to the Heart Center (feat. Carl Young & Ora)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6483113f3bb52addd3c7645368aef750584756309c3ddd531e1935597010abd. 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/USDY41986287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c5b26a4a1af3a908e77c4d88ececc91649576c1763f1fcee70e381a713e4190. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/USDY41986293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7419140c42623a72ec00c112b38d4c9195d3442cfe680d82d5e12c46b6f26f9. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/USDY41986294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x504f06bee86db0ba33c0ad227841f94427760a4e348280b60c9f1b6f3e3d3864. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/CA5KR1945310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0750e398231ab697b779f53b7fdc48723b502d08be3e6af1b5a06946c9175bc9. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/USHM82057686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf67d586fae0f4ae4ae374bb18640f546b2afa4b82ce9644af65fcdf86cbe5c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USA2P2208846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe32cbeeb1cd599ad1e042ead818e74e4e13fe63cd8777496adb58889aa760be2. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USA2P2207516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde25ba3b2b493036e604db5057fbdcf72c2c8d76c85a55725fa1f3c5da18609e. 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/USA2P2208844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f16568fdee5054e0129bb277e446ed5a8764bb9ae8a83210587e5c19d9d020. 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/USA2P2208847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c25ae68c36a6f38fc428cb7a9c09c614836e4acea4f718444932018129deedc. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/USA2P2208848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78536c443705f59da3d2c869219c5c4b1c56f415e534b860ee4a87dd9016a763. 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/USA2P2208845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd447c847516c88796052971a5a90094a3d9ef7cc34939ff8c2dfd64880d2d8f0. 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/USA2P2208842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a1ad3032f83f69f7cd6e6ed0b222ab841d49ede581cf00aa7a3c8a696f5c41f. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/USA2P2208843.
Journey to the Heart Center (Cirqular Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa79a836ed756b7cfb52f2b548c0f622539fc788c05d8a3e040a5095a4497a141. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/USCGJ2351776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12aa12ef296e3ac189b1ce6985ea3d55f680636bad3646243df85a4bcd92c478. Chain 2 (Bitcoin): anchored in block 958493 (2026-07-18T04:34:53Z), 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/QZTV32361260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bd82865d989e513b962e4fd9679818fdf63b027c8c3cb8e1562848ec5938121. 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/USY282310382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b16f8485c24f67620a1f7a6d3e9a2ee1d9db46dc9963fdc8fe5a5806e8b7b8. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USCGJ2417010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8d5e5bc84864d4aaef6496d5496ffe3e560bd34b6f64b11c077faf585d828d9. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USCGJ2470111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e6e5060ae342d2762c164d98591a5a133e48041bf8085bfd1b8c33790b1e3c5. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/USDY42560252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91787a8e4dda43b7e091d470364590feeb11c08a8c1d2ec7d96aba6483bb5860. 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/CBEYJ2551904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5a6339961eaf68eda058a899a3edb390e551b569dbb5dfb26c1d8a1ec9b2536. 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/QZ5FN1925656.