Dr Rosephanye Powell, (born 1962) is an American choral composer, singer, professor, conductor and researcher. Powell has been hailed as one of America's premier composers of choral music. She has a d
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 0x569b5d64d98b93948c20b5c4e7f9e871ac423c6e0d60a54d9781f9e7d25d4156. Chain 2 (Bitcoin): anchored in block 954023 (2026-06-16T23:57:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/37e4cb77-4d23-4611-9edb-16d797d1ae1b.json and https://artists.proofprofile.net/proofs/artist/37e4cb77-4d23-4611-9edb-16d797d1ae1b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
R. Powell: Non Nobis Domine (Arr. for Upper Voices by William Powell)
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 0xd0a7dacf2fa508097a26d221e81d3cbe0262ca378aad74fef5a9c3d67f8d1b47. 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/USHM82246333.
Concordia University Wisconsin Kammerchor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaff681d5fe17348f1c559d8f5add9209b9ea1b6c53cfa3ac0c50b2d1f268b5fb. 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/USHM92008419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d2e38683b3856e1e1a88a75b57c4d522fb18b2036ace1fd560d941e57421293. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USHM20763102.
Miss Wheatley's Garden: No. 2, I Want to Die While You Love Me
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d8f19c406056c35aa09af9af57d1fd25bd368d9e8aa03bc1ee742e4aa9e006. 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/US8272400669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96135a3d3dc88fefaaa3f7be63ab31b7b2c7e6bbf8eb697e2d8cea3535f8f372. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/USCGJ1913535.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Non Nobis, Domine (feat. Rosephanye Powell, William C. Powell)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6afc02d42a7d473029356602742d352a98934aacc5f54188db3650136a5edc56. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/CAI371010073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a4c8f86bc14fbe5bf7bd95b817e17dee3b4293b6c34745df52fe570441b656. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/QZPJ32179777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a3d549a057975f5af89a41018214b4f1c0c572e7ff6d3a1e2d11bbbb86775d6. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QMAAK1992409.