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 0x2d1dd194f8cd8bd89bf7a44bcec8ebbece10eaa6dc23fd1705e40e59f2f2f7dc. 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/3e3dc27a-0c11-4252-bf97-0cadc6d0c980.json and https://artists.proofprofile.net/proofs/artist/3e3dc27a-0c11-4252-bf97-0cadc6d0c980.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 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 0x5e74560fc2927541876942a533b058d2816a1a69c105e51c53385e3239e0d538. 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/FR26V2095812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd127870bd2b2298e24a3d1561afd6230c7eadf206f3dbbda1c72b36a083634ee. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FR96X1941395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d0aa33307ece132de8ade7e18783dc05ff4cf4a0a12aceb5cbe84eb0f823f50. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FRX201844081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa697201d50f1b7b9339c44693e7e53df5d2ac137e8b05abf8e92644b70529481. 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/FR2X41947620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c66f6b4e5a7e0fcb7d6c02fbed8faf490649994ff497f616089819def9f9c93. 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/FR96X2314133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d2a06ccbf0ea4b81533819fe446070926fe5bbb7314f02c68bd1f6efc768901. 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/FR96X2092272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be1f8cba8048e2af2693c49293b93f811213b2ff4ac1ba9ef1e1101e4bdf6bd. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FRX282229503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f9e1edb0b83458dbcd9b30549689f89c85be916f354dd00cb597770c781b451. 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/FR96X2314134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be1f8cba8048e2af2693c49293b93f811213b2ff4ac1ba9ef1e1101e4bdf6bd. 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/FRX282229503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e8d38b551e49860269a71085732cc0eb52b04ac6ec0f088e90188c5a95a4de. 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/FRX282109950.
Orange Coffee (Ghost Producer Club Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d2a06ccbf0ea4b81533819fe446070926fe5bbb7314f02c68bd1f6efc768901. 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/FR96X2092272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd127870bd2b2298e24a3d1561afd6230c7eadf206f3dbbda1c72b36a083634ee. 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/FR96X1941395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa697201d50f1b7b9339c44693e7e53df5d2ac137e8b05abf8e92644b70529481. 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/FR2X41947620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d0aa33307ece132de8ade7e18783dc05ff4cf4a0a12aceb5cbe84eb0f823f50. 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/FRX201844081.