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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4e1e4a2a42785b5acd0abaa9d6fd18c3013d76c9cf543d285dee0362857cb6f. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ec78aedb-71c1-43a3-9a8f-c438db25e464.json and https://artists.proofprofile.net/proofs/artist/ec78aedb-71c1-43a3-9a8f-c438db25e464.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ec8b3b766e5938e37882223f7f4eae1aff0e98d0fb3feb1b3d96fe354c134f1. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/USA560745734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x352bdb0f4eecf4662ea0d90bbef20833fe977cc5d8344aef24d2bc32f69591d6. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/FR4E69000130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05b7c97080b18be0ea7362c115e842fbae9273debbece6cc5ab4e55aa25d4d8a. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FR4E69000140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e64f27f1a29d99a5596ac1e0f5dfceb3bbc4a2c3b8d5479e583b4e0ee08b06. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-20T00:20:00Z), 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/FR4E69000150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc04bb819919fa4fa5dacd80fbe34aaf38b2ec1662e1f9bc92eb7f4e78ff42c07. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/FR4E69000160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb087ba0ec3222bfbfc9a39a086c5e20dc278241681e9f92c1f2b26e98a7599c3. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T21:52:03Z), 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/FR4E69000180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67dc6a9ab0a3c0708df57affd1c5e3faabdb3ad8f88bb64bc5b81ae8fb62e6c4. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:41:16Z), 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/FR4E69000190.
Total Destruction (Behind the Black Door 1987) - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf4c1ca161cf37b5421e1003566f7862d78614ecbbc665c2ed6daad79a7a5d5b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEPI82530300.
Bestial Death (Behind the Black Door 1987) - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a6635308326da88b38991829e6e83f5fe4b7505b3f3da5a466eb53d5f327306. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/DEPI82530301.
Satanic Slaughters (Behind the Black Door 1987) - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b9256283c3aa699daf083b5e0f3e9301b035a6158f3ea2805f326c10447b924. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/DEPI82530302.
Behind the Black Door (Behind the Black Door 1987) - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x047cc699cd5c7d24221f6bb59607af5fd62981540076ec7a6e3870b7457c64ea. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/DEPI82530303.
Realm of the Dark (Realm of the Dark 1988) - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae0bf37ae5838fd7992cdf9aca186a3e3b1ffc57f17bc168b8ad4951ffc1f1b2. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T14:57:56Z), 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/DEPI82530304.
Nuclear Attack (Realms of the Dark 1988) - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a76d3548ee84ddcd6f2e6cd0266b9b0ad6c1e1fd1b69b87935e775c8e9e325. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T08:38:26Z), 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/DEPI82530306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec3531295c9a3fae9733f75fb201bd124302f065b0322214d29b4790802cc8e. 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/GBCMZ0500966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb200530173014e195e824d3f6e979266a8886a79e5e8493f8d9cc37f8fcd241. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/DES560901504.