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 0x160fb752cfd21ade86f3fc9cd7383b2343e63acda7f8b8c3fa726a97a6ed3166. 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/dc9031e1-1bea-4b64-9b58-f63ac80e36df.json and https://artists.proofprofile.net/proofs/artist/dc9031e1-1bea-4b64-9b58-f63ac80e36df.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 0x836d9ede401ab53bfd1ebd86692fcfa5f7ce6b6925ea716430e1cdc28f902071. 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/CAN112201289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c6cb5defa086d94229ec92de1728cbdadda0eb81fbc7f0cae8c381910713d9. 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/CAN112201138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b7363acc50e56620c8c6368196a3794c67d95dbbf3762a1f6afc81232f6e28. 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/CAN112201290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfcac421298928d437237b53373198a0c4aa52508d60cdf8757c7495820c4887. 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/CAN112201291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6fd7cb97cfa504b7251283212cb5fe3fb7c4ea5e81ae5c011b9f3d65bae4d70. 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/QM24S1704370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb2a196bf55f4f36c15c26fcecfeb150daebe9686eb905a213ce73a20844edf6. 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/QM24S1816423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6478932fd915ebb345c7125a602b5033ced25fb61286746cbd751470398936e5. 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/QM24S1816425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc4c55b7a33fb2ab909625d6c8f4996ac4e8b66070af111c69edd354b07c023b. 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/QM24S1816428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2815423c5e81b31d873f575318e15a181d0af2415ccb6b451abcfb8e7a85e9ec. 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/CAN112401178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce9d012f31274de6d998a5e285ff1b941fd4a4faa36a98611d43ba28edcdb88d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/CAN112300817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c6cb5defa086d94229ec92de1728cbdadda0eb81fbc7f0cae8c381910713d9. 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/CAN112201138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ab5d901881e67f08bc411ec02d0abda8d553ee16b5caa4fa82bcf43e0344694. 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/QM24S1927616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8231c20a4a1fff43449a71a8e98d5bfb9cd73e031cfb51ddd6a3e205a3df737. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QM24S1927617.
Oh My Other (with Oliver Hazard) [Acoustic]
Oh My Other (with Oliver Hazard) - Acoustic
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a79df071a7cda50c761bc25b6a47a9519aaff1daabc75dae3cf43ecce1fbae4. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USUM71908782.