Donald Harrison Jr. (born June 23, 1960) is an American jazz saxophonist and the Big Chief of The Congo Square Nation Afro-New Orleans Cultural Group from New Orleans, Louisiana. He was awarded an H
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 0x3a6e69ad67a5b52432316545eb4a07061e6b95f6a7322811d6f8fd6304514f7e. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ab9282b9-dd87-466f-85cc-c8e9bd9819c2.json and https://artists.proofprofile.net/proofs/artist/ab9282b9-dd87-466f-85cc-c8e9bd9819c2.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 → 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 0x6a4d43d02cdc915367317bf4348d9f05132f750a42bf7a76ba2a5eb0aa34f044. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/GBCWU0600846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa992839d9a48b039d10b63641b083c5fd6f6a07848692fa0049cface96692fa7. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/GBCWU0600847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea7b87872d706cc16a1f9c1ac2d7ef4c43d13387ccf2b793c05e63b73e459ba5. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/GBCWU0600850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf64b64c893651cc058a3240e6280ee8854dee76b0b2121562d150ddb381ffb. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/GBCWU0600851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x831ac7916bbe105b34b397af6838758a7fcd9638439099ad6ab71c4a21abbe2e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBCWU0600856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99dc8c9493d6ade511787450d0d44e034ebffae5d931e279000e8eaf43259e8e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USCNX1100043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87c409777ef87b6a8482c94ad492cbb365ac9263a9aff825d14fee1d0c5824a9. 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/QZAKB2311741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8a4311e3632b43480ac4e10eba1951f35562c40e42b5ca626cdb565da2253c4. 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/NLB931701103.
James Andrews and Trombone Shorty Brothers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfaf84ed9bfa85fc736eaeeaaa867140aabdd537aa5c381147bbe18cbc4b5063. 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/TCAEJ1938391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99211d32970d8301c462ace50b26152df9134032d1e4fb77366a2a0845cc6884. 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/USBAS1300102.
What a Wonderful World (feat. Donald Harrison)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfef5c40f57ff1ab8c019e7216ba9ccde09747227528fed160e6766b70d46c637. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T16:55:08Z), 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/USNO12000264.
Old Time Indians Meeting of the Chiefs (feat. Cyril Neville, Donald Harrison, Jr., Big Chief Bo Dollis, Sr.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f077171af05540e6968fc154b88a79da833ec804f42632114130f8534e560cd. 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/USBAS1000204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7c7413f47bff641ef250eb52d932997a2f325989945270fbaba6207cd66f471. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/NLB931701107.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe4e3f08ffbabed6670b324695c56fb805d028b3e94b936f635c0f45401e0f4c. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/QZMEQ2451816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b795f7a63cd102f1b8db3dfe5fd4592dec53366c400cf142c6d361c0d171663. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/USBAS1300104.
Do You Know What It Means to Miss New Orleans (feat. Donald Harrison)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5153f7bf637b68416025b703b8748bb20e2f4ca912897748cece16dc2207ce92. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/USNO12000278.