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 0x3088611ba01b001294185fcb658bd51549c67a22a1070cfffff773c313ebac7a. Chain 2 (Bitcoin): anchored in block 953754 (2026-06-15T06:45:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aef736f8-8534-448c-ad63-ce98f60987a3.json and https://artists.proofprofile.net/proofs/artist/aef736f8-8534-448c-ad63-ce98f60987a3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Alle Jahre wilder, little Kashmir drummer boy!
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 0x95f7fe2ca1b6a3bdd8a3665ff4fc094597c8737e949be8b74ea2bf5b82b7befe. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEQP11801403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf35055b40bc58f0698baa861b4555ded83244ffb279d56f14397092a60871c01. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEQP11801405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe211ac96029e8b66044595cc793573b08b02e3906fdb3f0083255ea8f2cee577. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEQP11801407.
Antonio Vivaldi: Flautino Concert in C-Dur, RV 443 (Arr. G-Dur) - 1. Largo
Antonio Vivaldi: Flautino Concert in C-Dur, RV 443 (Arr. G-Dur) - 1. Allegro
Antonio Vivaldi: Flautino Concert in C-Dur, RV 443 (Arr. G-Dur)
Antonio Vivaldi: Flautino Concert in C-Dur, RV 443 (Arr. G-Dur) - 2. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5193eb82fbc86f22cf36f528356d2a2aa4aab2b316cb021e464083a64b618999. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:50:35Z), 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/DEQP12502001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef9012d4caea554fdbb5034bb92e96f1ca18aa1aad9dbdbd3d601c125ef6d6a5. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/DEQP12502002.
It's My Party (and I'll Cry If I Want To)