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 0xe917896bc30106848c5b6e62657db046a07d189338008365bc32ec565c69520c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b42fe729-9db3-419f-be31-f1e8a732ae7e.json and https://artists.proofprofile.net/proofs/artist/b42fe729-9db3-419f-be31-f1e8a732ae7e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
That Sound (Sebastian Ingrosso & Steve Angello 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56aacddd47e7440df024bcae606e11f0e03c8b3d54eb82995ee421a2b8765efe. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/NLF712110147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x757a86407de2f66a9fa9b3cc4120d347f3690e2284dc8ae49182bb1752bd50ce. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NL8FJ2300281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f56f7fe0cadb3c5b9e0bf1fca808e36f4f5a197d72ef7ac540b469046b59efc. 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/GBNUQ1400807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x392d837e583867dcc4e37fd849056943321222df1d3f64beec5d1c8d85ef3f68. 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/GBNUQ1400808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b8d23b3e50f04f3748ca6bd3b0ea69d2f72f1b406fa634ea0326aedbdc2c438. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QZS1Z1642439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8b767289c6a129c3a35f607c3420a6bb4871584bcd740ae4cc6b413883b8874. 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/CAT391700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cf2b2a006d23474e0131534cd80db18e8068ebb25bfde4a7b2ad9672b4fc84a. 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/CAT391700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc16ae45d7f6c99ffa9cf1ece41459b17ffdc877549b878dd28bb6111924953. 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/GBJAJ2001169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf3645f7ac17ceecbf9b8ab7bfa9b983f141a8a7ab74ade4dfebab575e7b2c17. 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/GBJAJ2001170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffb6bdda9b56da8c4eebbcc37f46db49f2059f80a790e9ecc233b30fd4e59536. 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/GBJAJ2001171.
Dissonance - Kevin & Dantiez Saunderson Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cefe10ba414b2c4be277d0fb48d0c1034ec5adf698a7996370c9f0446175291. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GBSCL2013032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x374e2771bcee6f8a2a23c687cd121d499423034700bd13c00d9a9ad91bcef08f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/NL8FJ2300314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55a542fcf284b8ba697d7f92bb3f734c264c77d4cd543ed6eea4121a5f2b7eb9. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/GBNUQ1600116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x833f498b061a921e9d834d91567584f9214ad798c6f4c777b45632d1ab1f1ae1. 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/GBNUQ2100610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c904786cccb302fde61d708c8979384273146b729a7d3b1b97a6acc659f81e1. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBCPZ2221328.
Waiting for the Sun (Steve Lawler Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18a2c038a436a75907aa3abb929387716bec1216b875f332810abf9d353e19ab. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/US38Y2549085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x939617fd602f9dd65a4392264d7e32d639edf02a28404ee22bd4c3b244789076. 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/DEX041800009.