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 0xf886c0ef3a698f5103d2b3a1f0cf1d5a5c63b11a3f7da3874ff55d66ded64249. 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/9f88a1d6-186e-40a1-8db8-4227b04e8815.json and https://artists.proofprofile.net/proofs/artist/9f88a1d6-186e-40a1-8db8-4227b04e8815.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 0xfef5ce86a85bab29e9b5524ae8ce53f87d657d76f41862a650f459096ff4c24d. 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/US2S71910007.
Too Much Money (Peanut Butter Wolf Remix)
Strange Conversations (Sudan Archives Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d56fe0cbad5f02cd3462bc1185d4fa29ae2fb3bfa0e0e0323cc87976207c8bc. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/US2S71910024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71dcd4558b790c2be5da04f18fbd48d5b3579cea4320267b1681f57f3073387c. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T16:51:20Z), 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/US2S71910026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fa0dbb6a848867faa492d0b540edbff5b915445889899e8656c25dfa4b88d71. 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/US2S71910025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d3522dd0d9092774800d426907b6ec4923764b7ec49395e97badee3b53f28ce. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/US2S71910043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc751842cb7dc2f0bbe8d3ece12c42fdd99dc29bbdc14155d4358d85b400f0f3. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:24:19Z), 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/US2S71910044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4350ab63c9b710223980099774f4863216e0caaba878ebbfde7fe1cdc40a776b. 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/US2S72266007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2beccad9a690df1dba1f2545dfa0df4c2b52351415a398d9e40a178938ce5d1. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/US2S72266035.
New Beginning (Water From Your Eyes Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec26694e33baacc17efc366901d1c03be5441ac622242dc149a3500553926b84. 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/US2S72266031.
The Power of the Heart: A Tribute to Lou Reed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd305ffbf614f3561810c37dac28040bb7b6379152b3e9518c888425af768be2. 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/USDEA2421710.