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 0xa29147049bf783ac69685247852fac9376e905c21003f73d4992cbfb0d81d3a5. 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/c64870dd-eb90-4e1f-81dd-33307c8bd7b7.json and https://artists.proofprofile.net/proofs/artist/c64870dd-eb90-4e1f-81dd-33307c8bd7b7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Heaven Takes You Home [feat. Connie Constance] - Moojo Remix
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 0x4a2f3d6e4edeff574d526e3c22273fc25107ce13284bbaba32f78f76d57f9e1b. 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/USUG12205659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x108e6d2af7262ab67cebd0aeb9c22df122a916ab1ca8b9a3f5a6254c0ceba234. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/UKFR82300076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8da558625a4ad4f4f1051c4b007fce1f3ac6672912c690dca20451701fa23ea8. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DECL12000990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb7371599224c24811758389f7b0904f0a5836f0d83815793ba07c480d71c87. 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/DECL12000992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3a4b25619f6c2d6b5e1d303d2bcb517387817b17df375ec6a6a51c7d3f6f8b3. 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/GBKQU2327651.
Desperado (feat. Eribertho Cruzado) - Vocal Mix Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x391255356d5f6355cbcf42c758521ba3ca3a879b032abf51aa2e65bf04a78033. 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/GBJX32032114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb54f8633ecffa6d2a71687aabc71ca7d6ed80441873b1b08eacf86000221a9ad. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBJX32032112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b5224f1e59910e4e271a8336191752e5571d26ad2c96a424abdfe3d8691796d. 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/GBJX32032115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x225891b9194eb0fdbd4cfe970a5dead2233fbef3b4313eedd9885bdaf125f6c1. 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/GBJX32032113.
Moth To A Flame (with The Weeknd, Moojo) - Moojo Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0411afa3bf408e87ab0b86e517f3a62cbd4400d81e74ef63e82f704c7e735fe0. 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/USUG12204718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1a4c5c94e24e1368edce8beebd79e6a819913477aa601eb0eabdf8122c86b3. 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/USZ4V2200246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a2f3d6e4edeff574d526e3c22273fc25107ce13284bbaba32f78f76d57f9e1b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USUG12205659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3924d34a13bee9eb38b10a7bd1cc878e06731303829a204490c926b737c35894. 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/FR2PA2300130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3924d34a13bee9eb38b10a7bd1cc878e06731303829a204490c926b737c35894. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FR2PA2300130.