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 0x6fa58428c84f8e1e9179a61eac73d33c006cb9b26ae4691a0320b82589740dce. 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/4fd34942-0ae8-499d-88e4-00bb94b17e43.json and https://artists.proofprofile.net/proofs/artist/4fd34942-0ae8-499d-88e4-00bb94b17e43.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 0xf0aa7a09d60071d812f32229aafc12afb04b1f3baf743b76521b83eb4407799f. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/FR5Q51000027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bb96551c98bc4a3f1cb522d7280999dd4b828b028c59341eeb31d63e6b44ab2. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/FR5Q51300047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa87a75e9de4c2703e26388c0774a06c5e39765442ca753a4ab85c86fda94e258. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FR5Q51300048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc62dea872b7ffd78c2855c06c3213ae58d8927f76a6dcbf94c59a237e24d15d2. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/FR5Q51300049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad433aa44c13f4c99cd4acd6e8ed33b4622cedb415bb08bd30215eb43401d7c4. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:55:15Z), 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/FR5Q51300051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f5c5064c58e666002ac2223fe676c27991abae4c075457e3f68f73b61a9b81f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FR5Q51300052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe848f4785f9d596ef01a1d054b22ee167305273f41e17f085017112b74f00bd2. 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/FR5Q51300053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb3f133f621d6abca05d91ce32ca9448c57d91f35fb4ce44a8ddd34b63b085e5. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/FR5Q51300054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x471b49a5df98e4b585a9709e9bb9c8b58a6362156a79a9d95808b5c6cd86b5af. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T21:09:54Z), 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/FR5Q51300055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb913f1f10c65bc766c3dd023f5594ca83603cf4877680953671e0eb0707d4a9. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FR5Q51300056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58110d312e61998f0cd880763ea2d7546705c02db16c76aa33401fb17588493f. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FR5Q51300044.
Lady Mydriasis (feat. Frederika) [Geff Borg & Efficient Energy Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19ae1249cbba725823128e6126b8370f20ebe8658c5641f0f30d15cc175dd729. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/FR5Q51500110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x572037c8c2fcb2902399b8698066c863233ed5545668349d9470c719c938670b. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:28:00Z), 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/FR5Q51500111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecbbba81fa2196776f94f94019a9ad13fbf6b30c1de0d61ba1c254df03a92301. 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/FR5Q51500116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85218fe040d9e857bc8b2620e7ed65053cd3c171e2b9ca5f15a37f06d04ee32b. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/FR5Q51500118.