1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x512ba734a8d812d76f532616ec35846044d7f9cf2e94abb14ae7977f0b5e2834. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2791f537-e5dc-489c-99f2-8094048e0f93.json and https://artists.proofprofile.net/proofs/artist/2791f537-e5dc-489c-99f2-8094048e0f93.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 → block OTSBitcoinBlock must exist at that height 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 0xd6fee88b3d4cd5ae8184513fde6e19c5b205a9a7680665af01843b3cf2ab4451. 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/US4QP0439705.
Ach, unser wille bleibt verkehrt/Herr, so du willt/Herr, wie du willst, so schick's mit mir
The Things Our Father Loved (and The greatest of these was Liberty!)
Past Tells (or Orals): Processive Regalia
Past Tells (or Orals): Spiritual-Out Chorus
Past Tells (or Orals): Epilogue (Variations on Ives)
Leroy Jenkins: Themes and Improvisations on the Blues
Marty Ehrlich's Dark Woods Ensemble: Emergency Peace
All That Seems to Be, Is Not / All That Seems Not to Be, Is
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa56886043055173f287df2f626e5a380641da039e432a02435c2d6c8a35e13. 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/US4WL0803601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa400af3367185c795db1a35c862de8a23b3444ec39c4b688e4ccfec661ccc430. 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/US4WL0803605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dcabee4f96c7a15dbe5b9ef172df18e2ae681c74756c97c92538325df2a8cd6. 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/US4WL0803612.
Fast Folk Musical Magazine (Vol. 3, No. 3)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x955793d96265f94f73a48f728ec789a87cc04eb63d7fa6375eccca7f929e79e5. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USSF18630301.
One Night in Greece with an American Tourist
Parts I & II Frank Lloyd Wright Goes West to Rest - Live
The Wheel: IV. We Have Been the Victims of a Broken Promise
The Wheel: V. Ceaseless Motion (Watch the Future Roll By)