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 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 0xf1fad0be9d909e8ebfc01a880feb8342e26167be56429ce08a0d576f04894029. 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/f39c1f90-1e65-49db-9333-66313d2c5ae1.json and https://artists.proofprofile.net/proofs/artist/f39c1f90-1e65-49db-9333-66313d2c5ae1.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Marching Along with the Phenomenal Dukes of Dixieland
Marching Along With...The Dukes of Dixieland, Vol. 3
Minstrel Time with the Phenomenal Dukes of Dixieland, Vol. 5
On Bourbon Street with the Dukes of Dixieland, Vol. 4
Mardi Gras Time with the Dukes of Dixieland, Vol. 6
Circus Time with the Dukes of Dixieland, Vol. 7
On Bourbon Street with the Phenomenal Dukes of Dixieland
Carnegie Hall Concert, Vol.10 (2021 Remastered Version)
Up the Mississippi with the Dukes of Dixieland, Vol. 9
The Phenomenal Dukes of Dixieland, Vol. 2 (Stereo Version)
Piano Ragtime with the Dukes of Dixieland, Vol. 11
Piano Ragtime with the Phenomenal Dukes Of Dixieland, Vol. 11
More Best of the Dukes of Dixieland, Vol. 2
The Best Of The Dukes Of Dixieland (Formerly Titled : The Dukes Of Disneyland)
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 0xcc31a4be56b8382aea909bdb535b37218d1663d05e96ee8cb6b396a2d050e98c. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T02:33:54Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM16201141 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e66f79ee1083aef443770b5750e0531108f48fdcdde685df073a228f2115b21. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10024042 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2404d4090df026d27439c3429a838840f3e940260eb59f4b6c6280d2a479fd9. Chain 2 (Bitcoin): anchored in block 957763 (2026-07-12T22:01:25Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10024041 — a six-check JSON result.
Sound of Bix: A Salute to Bix Beiderbecke
The Phenomenal Dukes Of Dixieland, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1043ba39f71fe5c16e9853c03b5439080c704b20e29b70ea122bf15acd44eb47. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB6V1010059 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d6baf1bd379238e6ece17f3c7d6963926177ce70b82a89b0700196d64c1bfed. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM20828785 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3cb4b11ff58da4a4d7e6e6fd7ee4e2f938f6e7c3cbaa046af2667c3ae9b2479. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM20828786 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8134285ce6a53ce195f17e6fee7a5e5bb179d889ffe0980a44573d63352bde1. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM20828791 — a six-check JSON result.
Marching Along with the Dukes of Dixieland. Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x426487d3ca851857f038e019506a190ceb34de43f6f295923417f8ed75ef6dc8. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB6V1010138 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe38444e178c2481a818f35d7e358dc362a8de4f5871fa58d6ca68ff8a091a3b3. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBHFE0632581 — a six-check JSON result.
Mardi Gras With the Phenomenal Dukes of Dixieland
Up The Missippi With The Phenemenal Dukes of Dixieland
The Dukes of Dixieland On Bourbon Street
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb45b3dac4658b036a22764013cb4f18ce3fea6216502d91ca97a6bcc2f10109f. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USV291348700 — a six-check JSON result.
You Have to Hear It to Believe It - Volume 11
More of the Best of the Dukes of Dixieland
Minstrel Time with the Phenomenal Dukes of Dixieland
The Fabulous Sound of The Dukes Of Dixieland - Four Original Stereo Albums
The Best Of The Dukes Of Dixieland (With Bonus Tracks)
Marching Along With… The Phenomenal Dukes Of Dixieland, Vol. 3
Is it True 'Bout the Dukes of Dixieland (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1121d9cd8944cdeed59ca2ae0b6bfc9901969ceef073cc7b812dd44a8b60d3e0. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCXG1200146 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf16b7f487132c2cadef9907e2a859e6eaeeee2c0267e5699a9fbdb751905899b. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCXG1501412 — a six-check JSON result.