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 0xd47d88057fc8fe88e2474b3c182d2ac0b8233d10c2a299e02aaceb8eac915308. Chain 2 (Bitcoin): anchored in block 953691 (2026-06-14T20:39:17Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6b12a772-97c7-4747-9db3-b0359dad3fe7.json and https://artists.proofprofile.net/proofs/artist/6b12a772-97c7-4747-9db3-b0359dad3fe7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tubelight (Original Motion Picture 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 → 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 0xad0a82864974a8f2dd5d221d81faf1db69c624b91f1433bf9a804657d685e46a. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DEZN82316533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3c87c9577868ebe1eee602d6453bd4f3cc44585542f7603ceb0eea911f763f2. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZMHM2440981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f0e1a8483545b942178cf9f2b6b29ad417913f9b32e64c5e0cf58bb6bee966. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/UK6822413319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcae447b0b5dd89ac81485caeb268994228ca62409cb0710f408fd91e1f84ba2. 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/CAQOI2411719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47597fc096a14119fa4883e2c0cb056e05e7060d0e7fc5d7aa44ed1ee0b46df2. 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/CAQOI2411718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5b921512aa7111cbc82ca139cf263430b0bcfd97a31d52ff835130d24f2a805. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/MXA3V2434954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd327fc1890857ee411291cea021d44deee91fc9337fd7bef5019ceaf25a3510. 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/BGA472518017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb53f602a8cedf4c6f8021ea1d75e878c2c549c1eb868a24c854cc9f2d743b343. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/CAQOI2529216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc15d9f29b28eb40c1ce1fe141cd3c771304fd3f68b14587a789fbb5ef2f5f79b. 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/ZA56E2201135.