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 0xbc5f39a4307945dfe2cab56b95e8b27a2efbdb15403d150b3de4584022afb65d. 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/c325f497-34e4-444e-8438-a9cd6e3c84c5.json and https://artists.proofprofile.net/proofs/artist/c325f497-34e4-444e-8438-a9cd6e3c84c5.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 0x0ff6104e6510e9f8d37e91289a8c9709609f45e304c75da949cb2d55b47c04f0. 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/USUM71820380.
Break Every Chain (The Voice Performance)
Oceans (Where Feet May Fail) [The Voice Performance]
Oceans (Where Feet May Fail) - The Voice Performance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04192a3c9194bcd58c4cb02980423c664f166c2c18562ecf958e391be34689d6. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/USUM71821291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c1ef96a2f97e0ad229b062ceb98d6aaa7736b85d352091c1b95d50fe17382d2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMDA62204591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1025b1f39774bdb9f8605eaf38a9d9bba55547a761347373a0b96d88fd224cfe. 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/QZHNC2424355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b39b68d4ee9f6b19435bdcf3b32ebfbb7dd20eb18a9d40ce9994d8f12baebe. 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/QZNWX2292363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40c5ac4852cf729951f5766d188e83d7796ba55ccd06a3b88df3a7d373554534. 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/QZFZ22307474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe14ae867813dd3c387d43013efc248313662d81cd4231cd8da1a3ab579da6b29. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/QZFZ22307476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b39b68d4ee9f6b19435bdcf3b32ebfbb7dd20eb18a9d40ce9994d8f12baebe. 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/QZNWX2292363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2519e2b4633ebc1b72b7d42e60ca4827d5c2f6c99008bda260260a392377a95. 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/QZGXC2400643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeffd47e2bb0bb997117fdb358b66c46c302720c44cc6e19163d2676c57bd9b1. 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/QZGXC2400648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x728d50f53ac1b58be50e36eda8077541aeb7a0d3e72e0039ec11188b6326bb42. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/US25L2100062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2519e2b4633ebc1b72b7d42e60ca4827d5c2f6c99008bda260260a392377a95. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZGXC2400643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeffd47e2bb0bb997117fdb358b66c46c302720c44cc6e19163d2676c57bd9b1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZGXC2400648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02cda0a0103f6feb21949fcf833386b3b50ce197dea0890591d2f567992161a5. 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/USKO11981255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x616f6058975f9ef8909118fc23be05b82ad237f7517c574bdb91a958ec11f932. 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/TCAIN2460371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x789b6239eaff3e4812eb83c26f59001cea86e28a0b51cd2feff931d2235fabe3. 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/QMBZ92269074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd8efc77f513dcad314c9f9274d6b6b2137f21e5cbb0a200f1f198bcf469617e. 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/QZES82565338.