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 0x96aa0b08a83daebaec19f7d2ee3b22af13025e4b22883a62ebe47921498e10c8. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/abb5ca91-8a26-4928-9305-bad5786bbc27.json and https://artists.proofprofile.net/proofs/artist/abb5ca91-8a26-4928-9305-bad5786bbc27.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Music Inspired from Sylvester Stallone Movie Soundtracks
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 0x6f2e878cb0e1e43a1dee6c7454d893dce149de035695cbd23256b3656298758c. 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/QMVRR1531746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcc26f4b5f8ebe3104f1eaeea723a18cc37065bef3df29a6e8645cc2c92928a3. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QMVRR1531756.
Go for It! (Heart and Fire) [From "Rocky V"]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5bf3ae70546e783c050de3586e0739101c152f0d3c527e2515a5fe3012f07b7. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QMVRR1531757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82987d5302a1b0aa820956d0bf47d1ccdd9fe565e2f19c569cbf7d879fa7ecc8. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QMVRR1531744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa14bd47dd9c68d9b33df68b5706c6f5271bc0906e695ba0e4d456adb04e34e8d. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/QMVRR1531747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc353fc92932f37f9335528a90cdefbd0153b5cd9944fc54b0ff5aee5cb8672. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QMVRR1531748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19e5d489d256b9b54f59d2236a443d324d3ece55dcbaab651a6de129f65938a. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/QMVRR1531749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34271b19df30b6e8618edc7eb06880a0058960354723e45856d3da12ae651df4. Chain 2 (Bitcoin): anchored in block 957647 (2026-07-12T03:57:41Z), 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/QMVRR1531752.
Thought U Were the One for Me (From "Rocky V")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5abcc37dfa06423c53659ce714e2a881679455f9272335491e3bf7fa91d61c6e. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QMVRR1531760.
It's a Long Road (From "Rambo: First Blood")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7e8653b79cd0b8c4d572dd076dd2d3314370e453010b4031e4f3498601eb81. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:21:39Z), 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/QMVRR1531767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8ed18cd967189bd2b783579219d8fd2b7d1465f826fbb05bca0a1e1b8e9527e. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QMVRR1531770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e8992b7404bf8781dc89af7515906c66ae3c14c2b659d1857e80f7899cb5dc3. 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/QMVRR1531777.