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 0x816b17383e64283109deb3c2039292b65cb5bd72850e3b0669b696ef43247f93. Chain 2 (Bitcoin): anchored in block 953852 (2026-06-15T23:13:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/01ec0c63-4d48-4cc5-aac1-b419e54258e6.json and https://artists.proofprofile.net/proofs/artist/01ec0c63-4d48-4cc5-aac1-b419e54258e6.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 → 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 0xf4b8bcd84d09ff8f46d2ac42e851dfc3e0f3687c6ba2a47173df80c576748041. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ARA502000055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd12af28e270e4685acfedea44d5464ab88e6ec5fd38d45dcd9a3b21b09471f. 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/TCJPV2367542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0af3e78763236495e5a4b98a3bff25fc7a222944d9dd546d377bd095794c42c0. 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/TCJPV2367543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7f9141beacaeb70254b2f0d5f9d378d98de1fc67aa5f0e9941a5073869cbabf. 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/ARF101200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a07d622563b0df76ae4382f726f78893859ebcf2528d38a27a4f61a2265da0b. 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/ARF471200111.
Can't Take My Eyes Off of You / Cómo Le Digo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e9a56706a07a1386842f8d9bdf56ca1af1063959924af3692208dd75c8b502. 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/ARF471200101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec835fa654c78621bfb9924cad84346f539b7e415142aaf3bd2ebc3bc16fca5b. 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/ARF471200104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x507307c754d4501ce407203b33daba256e19b7eab09124dbb1a054a0dcc22bb6. 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/ARF471200112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bc6f9f050952fb53d80a020a4aadcf61f782cb93eb3bd3744464efb81493b46. 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/ARF471200106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9959b5f4aaefd8c969ddb850be0ac6ce3f7a1885cba3e35e7f4e61f20d280e13. 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/ARF471200107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x975cca324d70dcce12ca9cde79e8947e46ef4e8ad718040590b0f7275a6cc3c5. 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/ARF471200099.
Tengo un Algo Adentro Que Se Llama el Coso