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 0x2e538aff62a8159743522b774d61f3cf8a76e56939a770fcdba8e3e5bbf39e18. 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/5a6b8b43-ef32-44f5-8246-3733d9ddb2e1.json and https://artists.proofprofile.net/proofs/artist/5a6b8b43-ef32-44f5-8246-3733d9ddb2e1.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 0x1cc9b7ac93b0001802bfa8f5e22f1fe7b5a68d35e3e16917620414fde0836dd3. 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/USL4Q0724172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72de1d71ddd0d68153a7a56c0d0db9f7c542f9fc1024dcd6575a7e7c1b210523. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/USL4Q0724174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe30b9abbf88348044e766d3dd35fcb1fbb4f18209539167bfddbb0ff9b6a45f9. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:34:37Z), 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/USL4Q0724176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c3b44620e18a9097eac3941d8b7001ae8b72a93bb1f73dbc4961bbebf3fe8a. 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/USL4Q0724177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56c7d9b5416f88a6a69d9e16c747b515d3d84813f349bebe8c1ac4b4271ddbe9. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USL4Q0724180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfff15c433bf9b86b93857afe930a850137cf673a10cd7fff9596a8d897624b9c. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:02:33Z), 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/USHM91345784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ae09c6cf0adcddb1ff9c66179892ba69c56659bd811a0ad441fd1eed4caca90. 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/USHM91345785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a24dba43a0d00f3473cb160c8f880f3aea6705d3331f49a8d313a58e6800682. 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/USHM91345787.
Intervention (feat. Dr. Awkward, Adam Warrock, Jesse Dangerously, MC Frontalot, Ytcracker, Coolzey & Nelson Lugo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaf90ebbdd8a1eaa62503ffc3263b88f4d630e4569e482315df242cddc30ec5d. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USHM91345800.
Boo! (I'm a Ghost) [False Metal Remix] - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0448fc2f0de7f1947b1fc1c73c308e9e0721df6ebe49b07838aa686ddabbf1b4. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QMXFM1100219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d5d80ad0fc4010b1907cce9a03c28f7c6eca637e3875958b02011387a7cd6a9. 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/US92U1800608.
Coolzey and the Search for the Hip Hop Hearts, Vol. 2: I'm the DJ, They're the Rapper
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20793b8edf775fa1cdb0e613bc87d38764543fb3e402c481be6bf6e9afb1e59b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USA2B2058094.