thumb|The K-system dB scale. The K-system is an audio level measuring technique proposed by mastering engineer Bob Katz in the paper "An integrated approach to Metering, Monitoring and Levelling".An
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 0x1c6e2575e4c8d6030c57fc87432c9c0ca835978bfe4a29906e5abafb8e09857c. 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/679da282-ad35-49d9-a232-2e930bbd24b9.json and https://artists.proofprofile.net/proofs/artist/679da282-ad35-49d9-a232-2e930bbd24b9.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58847e9e72d23c0507576fc9d3e52c7a38d4a9d42c8dc01ae5ffe843b2736d7c. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:05:19Z), 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/FIB3A0400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34e709f467007b95197a908f89b3c167bc93c914273e78bd55fa00873fe2f399. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/FIKFK0000105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c747b3026a942e6dea8a008c8e77822f034ceffb80b2061d4f3a2e7d4c9b29. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:25:52Z), 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/FIPGF0400001.
Fire It Up! (Samba 69) [Feat. Cristal Snow]
Supadupasound (Millennium Project 2020 Remix)
Supadupasound - Millennium Project 2020 Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f75c71d08604799e8e266f164d9af0f122e2508b6eb9ce13442ca24deeb51d7. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/FIKD82000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb428d96887f64d0e33cbe433c6f08cc3a2bf180a57b30e92e64a0bfc441a8b5d. 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/TCAGM2236975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffbeda40254805465eead7706176947c11cb62687d880507c2c47aec22395d53. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FIKD82500001.