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 0x3aed829337d68da74f1d23163b5c7967876972cf68a2765c8ed9dbe6e7f13b57. Chain 2 (Bitcoin): anchored in block 953645 (2026-06-14T14:31:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3d849ac3-b1b9-4006-8bd5-9ec3c7513d23.json and https://artists.proofprofile.net/proofs/artist/3d849ac3-b1b9-4006-8bd5-9ec3c7513d23.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
A Blow For Me, A Toot To You (feat. Maceo Parker) [Bonus Track Version]
Up for the Down Stroke (feat. Maceo Parker)
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 0x7a571c26d68d40d005ffb39c8328bd937b022b83846b7040f5d3f377aeaf566e. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USAT20202173.
A Blow for Me, a Toot to You (feat. Maceo Parker)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf69a2cf0e715dd57001c1b152cf59fcddb4d7c593815cbafbaaed9562dcca15a. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/USAT20202174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed757f4a08b21410abbbcdddec724ac4ab0bd3c771bcc7a26c15a131aee79a3f. 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/USAT20202176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c36d86309812430565a499e8b0238adc3b90df0c4d5292f82bd5c45e821bf8c. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/USAT20202178.
Up for the Down Stroke (feat. Maceo Parker) - 45 Edit Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62652fa69281cfc8fc7fd320e1b34dd71ee643917a21b95b50aaafdf9378671c. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:39:57Z), 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/USAT20202679.
Four Play (feat. Maceo Parker) - D.J. Promo 45 Edit Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ee5cf4f6e3aae2fbe893bb97c770fed3ab48dee5ac27eeac32401ae9326d850. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USAT20202681.
Say Blow By Blow Backwards feat. Maceo Parker
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b3d252291456dbde963d37f5ea6ed68e0a4a958b93dff6c47891b2a63d70086. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:33:00Z), 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/USAT20202185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5aa7a682cf6a380b9d992e40f928073c0b98d3e7b068d93747d45a7bc1a90dd. 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/USAT20202188.