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 0x3b3b4f73e3122cf573c0d062866bd149105f089d7992a12e3de1e262778a9383. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f846453a-dbd7-4a3c-8d83-e50619b9691d.json and https://artists.proofprofile.net/proofs/artist/f846453a-dbd7-4a3c-8d83-e50619b9691d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ultimate Steel Drums Reggae Party, A Steel Drum Tribute to Bob Marley, Peter Tosh, Shaggy and More...
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 0x1180d0eed609812da39941bd495260cbfa88b4ddfbc0735935c978a6d893cd81. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/TCAAX1180436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa06c70d07c76e1991e7ba3fea7e5b3bd352192f41220044dbbf88fa644c44eba. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCAAX1180459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d91432e6263a26cfe46cb976879d447c9b9c151f8300384fe47a1fb7de128a3. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/TCAAX1180464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85af759bdaa473610684004bd302831c3b14cc24855985253fc964c153f8dce0. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:21:48Z), 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/TCAAX1180467.
I Can See Clearly Now (the Rain Has Gone)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cd0d14d91346c03c064a8ce401bc47b4fe470b81223bd528a5429a9439cc2f5. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/TCAAX1180470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b26d1da24a9e7c19e998c59ada9e042adc9032e856effc880003a306bbf52c4. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/TCAAX1180476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a296bb3dd5b552320b352a0c0a413535917e4cf867d69de008d6479cbc7911. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCAAX1180479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc53826ef863299fdc310855f2d5fd2dae38c8277fc59c8af8f007bed5639757. 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/TCAAX1180481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22abc8c0c5885efc4fe25fac4d037d53e9d5131ad0538b179a16a9cf72a57116. 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/TCAAX1180512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e7eff6ee1c515f625e1271279ac40597c8b437f2019bbc15135ea8c2c37fbe1. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/TCAAX1180516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe64643f78aeb2584ded135c7f99265233e9db28da2adfcab2e60a362243a15bb. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T03:29:54Z), 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/TCAAX1180520.