Dayna Stephens (born August 1, 1978) is an American jazz saxophonist and composer. In addition to leading his own group, Stephens has performed extensively with Kenny Barron, Ambrose Akinmusire, Taylo
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 0x25f5f21f049eb7356bfdf80dd7ce21a6ab256ea3f7852b45e5cbef0ea1fe456a. 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/f67a304a-4766-4110-878b-3e4fb1033cd8.json and https://artists.proofprofile.net/proofs/artist/f67a304a-4766-4110-878b-3e4fb1033cd8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
New Day: The Emeryville Sessions, Vol. 3
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 0xfe68f5b69022a067c328fde365c0ea6716168567fea70e93a7120b335a7d7271. Chain 2 (Bitcoin): anchored in block 959011 (2026-07-21T16:10:58Z), 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/US2W61439905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c1aa494f91c44254cec0224b2f69dddeac72abd205e9d0ef235cae319987844. 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/QM6N21462031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1f5f0712505893a54c50f019a7e8692c36c759f3720ef7c6b274bf0f0a750b5. 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/QM6N21462037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf012ea17325c5249254c76b6f3dbdb82e9d1a8591316997da1b5d7c8b1ca65ab. 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/QM6N21462040.
Right Now - LIVE AT THE VILLAGE VANGUARD
Drive North to Find the Oranges Out West (feat. Aaron Parks, Ben Street & Greg Hutchinson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x778717250857d5196652ed595a8daa192de1c7abc992f1929eb52544456bd643. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:39:13Z), 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/QMFME2462789.
Hopium (feat. Aaron Parks, Ben Street & Greg Hutchinson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcba8b87e7cb92ce1adf38e55124565629868a94e4204f8130975862654b9140e. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QMFME2462792.
Occasionally Cynical (feat. Aaron Parks, Ben Street & Greg Hutchinson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f40bf542bcd1b7f1826eca100c1d600fdad6d1c610b501878ffc75c40318d00. 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/QMFME2462793.
As Truth Rises Above Power (feat. Aaron Parks, Ben Street, Greg Hutchinson & Charles Altura)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb44e4d27390383ea860c7865e77707841f7db158147d4970208aca3db979156a. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/QMFME2462795.