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 0x3d982eef7f09115b8f134ccb564bdd7de42d7e9c7a16f8ce58894e9712102222. 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/098ef57a-1e91-49cc-9407-640d29baa17b.json and https://artists.proofprofile.net/proofs/artist/098ef57a-1e91-49cc-9407-640d29baa17b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Forza Motorsport 3 (Original Soundtrack)
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 0x9887ffab78c6beeb70fc4a21a84d93799aa75aa4f2783610a336f14d98a15ea4. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T03:28:33Z), 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/USA2P1372758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa0247e9f75dc27ae99fa9ede0bca0b085572dc21f9c69e277c5d3f2a1952189. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USA2P1372760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ec94c9889a7a319a8620e914c024a8e63c6d20fec48297248d8b0007174e845. 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/USA2P1372762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7661f199487e56499053e8b82c173bbbb7952549764a614813cd3e76978d6f4. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:09:46Z), 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/USA2P1372763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed41131d821411c4e7991fa12c7370b0498c05147cb44766e0c0273dc7c4c41. 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/USA2P1372764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x263b9c9a9730f3af2c62fcf265c54a7cfc2a99d1d9ad4a041a833872e8cf8103. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/USA2P1372765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed98b99b5c408583fe5a1b845df5ed8a1031957fe1babb06eb675cf37e496039. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:39:04Z), 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/USA2P1372766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79ed8b5f211457e9a28fb8afd3d4fde9798629081172295e31dbd5e5ac0cd359. 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/USA2P1372768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa84c89fc792d1bf75d2e28a776db85ed6b63c349293e645c0b07e8d068ac97b0. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/USA2P1372769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f5f2e28b995eae8c60475d11755fdc46f04541149b140e13190739fe75f69a. 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/USA2P1372770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19d6fdace89d0348f24a50fc35509b52d76c5b3e0d6b8b10620de49562661919. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:59:25Z), 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/USA2P1372771.