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 0x2032412f0cdf1ebc0cbc0ebdaae354a16537fe9e2d35c0437481214c13371d1a. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5d9b1c2c-9e12-43bd-9294-0c9be6cc1275.json and https://artists.proofprofile.net/proofs/artist/5d9b1c2c-9e12-43bd-9294-0c9be6cc1275.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bring Me Back To Life (Sergey Salekhov 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 0x8b081ab0c0e1e507cd70e345df853a6f5820a349d05899a3388bdac399aa33e2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBKQU2296720.
Bring Me Back To Life (Vito Fognini Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae24b29c2c39c2c45ee74736385e65065a4029b3b1dff3b271ee6d67501c3fc9. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/GBKQU2428985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8819158fc8cec9e4ab4e1b2811c1652519ee3128cbedcdba29c4a157b289c74. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/GBLV62421243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe53dcdb4e4de13112a1fae8e754682f0d79ea70b325cde58fedc3187938722f9. 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/GBKQU2511939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01b37f0a6580aa94369a96f7f53ffe81109d7b92e5bc3049df81b3b359890360. 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/GBKQU2511940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd072aff9d7185cf368b40b1b7d65c5f8d43d5ace02d0ee88b8402bd5af0a1126. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/GBKQU2517277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be2761be11525799a98f4ee9882eb03e73e6823927b5d7462ab28ebda772633. 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/GBKQU2538761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48cc7c73c9b38685429c7997c31fd31c9f406f2ed3ee4e721f0ac54be292b2a. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/GBKQU2583339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce1033ad7afd981e022105532863c2966185dd38925d56f683c1570f654d9e92. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/GBKQU2592131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac9eb7abde0cf77689f0ba08346f6929bbba3b6c0756d46b4aa566141fede304. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBLV62322134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cd1a946d828e4f86484c7d0235863681b7ea67c13c7fe935d39fac28bf02f17. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/GBKQU2517997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f4810b93c308163dad58c874d99c4d1810a83926ccc2392c98cd9b45e85459. 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/GBKQU2523783.