William McKinley Hutchison (December 6, 1944 – September 19, 2005), better known as Willie Hutch, was an American singer, songwriter as well as a record producer and recording artist for the Motown re
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 0x2799997c72363c5fa5b1f6919922b0cb4a844cb2bf6f41b93f5ea43dd98f92f6. 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/f7ae9773-8358-4033-a825-ed40980d54a3.json and https://artists.proofprofile.net/proofs/artist/f7ae9773-8358-4033-a825-ed40980d54a3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Mack - Original Motion Picture Soundtrack
Brother's Gonna Work It Out - The Mack/Soundtrack Version
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 0x28d4e925673e1f435be5529c4562891e00d2d0b4e272094e56a32e0bd28a9fa0. 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/USMO17384654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe40fec8927caaafd3bcd21ffc95258a2e358110e04c5c89dcaed6b4867d19aef. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/US6YC2203539.
I Choose You - The Mack/Soundtrack Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5c788a5c08be4bab5a2d41bf48bc57abbb2c572fff5a74864cf9b3fd93cb83d. 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/USMO17384648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c54e44c0cc689f6209f060f82b7e006fc70ddc18f32e96dbd81600c131fac2. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEG930500290.
Hitsville USA, The Motown Collection 1972-1992
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a429ddd7546f9b9a185dd134747c97d40f70bac5d6c8fc39512d29b6ea7bb4. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:03:38Z), 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/USMO10000352.