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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x261b610d3c6a1ea5ffa8df13280bc3df668b5a2a81a39c48896995978e24920a. 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/97b2e083-985d-4490-bde5-42138225a32e.json and https://artists.proofprofile.net/proofs/artist/97b2e083-985d-4490-bde5-42138225a32e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
4 The Love Of House Music (Remix Part 2)
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98395493d0c10ab58bf4e558a8b845cd157508c47a23ecff4584c4ddb2a7a42a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEBE72400411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa147e097d5205a76927ad2930ba0418f47f197aad73ce6d0506d71d01aaef4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBKQU2351801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb78dc33b430e013642aeb2ab81afeddcfe4e8649484fd40c78995b570104708. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU2259143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6928018e054e4d07699764e35d4c9c7a084b1b7ca927731678267a6554678a. 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/ITE972000035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x961b929c1ad20636c731f054c366b7b3c1844d3ef70b5a06dba806ea26d17a68. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/US83Z2207149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x961b929c1ad20636c731f054c366b7b3c1844d3ef70b5a06dba806ea26d17a68. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/US83Z2207149.
Chased - Abel Ray & Daniel Sehnawi Arabic Rework
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e5d4ebb5cd40cb3414d389b7488f58456bc15aaa85afd73cffe984471076449. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DECY52002284.
Chased - Abel Ray & Daniel Sehnawi English Rework
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a59400590a052e9808c42ce23ff43f14c3d181c61aa4c62cc17be013f5c1c88. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/DECY52002285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef07fb26c4d3b5910aed5d24e951c99e5cd8e6992ae011833d486bd4254cf8a5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEBE72400754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x961b929c1ad20636c731f054c366b7b3c1844d3ef70b5a06dba806ea26d17a68. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/US83Z2207149.
Sol Voyage 004 - Night In The Medina (DJ Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db9917da06c904e76b028447b2c7666ae61caae61d97c6d433a3cc9b303fb70. 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/DEBE72400723.