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 0x9d1069f6e16eb4612ce3581eff82f1a45e1274ffb4032df206e2c3e59d7cb124. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a0ee927f-701d-4c41-af5c-04b4cf28b1a3.json and https://artists.proofprofile.net/proofs/artist/a0ee927f-701d-4c41-af5c-04b4cf28b1a3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Jamaican Summer - Classic Artist Series, Vol. 8
Ska 100 - 100 Classic Ska and Bluebeat Tracks, Vol. 2
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 0x71c8d45d186b2a5640d0a2692b6ea3444a8a5a5fce54583739984921b6928326. 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/FR6V82345923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1988703480401975fe28132509d97e427ad775874cb64639cb9dea1ed8aef941. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR6V82345932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e9f95952b6ae7aefdea1104d756fa7c3e06dcc9987b1699aac56097bedb665e. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/QMBZ91529080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa85099073b300f15c5da86d55f50bbbaa4ff91819973105d6eb5e820e0bfa7ef. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QMBZ91529122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71392bc1e4cc72794275951eeafb5ddf88bf68896c30f8be75b79a23fc02e7d7. 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/QMFMG1304522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c1e42974789c93983346c835e09ff986e0bcf9953c3aa05d699398bf974fc9c. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/GBCJQ1400344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x187fde57bd3a1de960c4fe25ed31d23489c143cadbf05dfdd647b5a01ca2c4f3. 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/GBCJQ1400356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa08600f20663f3e3611a9a03f9302db31d741d91a466564425762ab5409423. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBCJQ1400317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a0f695aea50af975015359e77a5cf04600dea070be54ded3ef490f2423a68ac. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBCJQ1400277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74cf0ee4f48dc8f2733e1ba551a0b1e3d67f20f8c4551d2d0b992eb4ed92d1f2. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/GBCJQ1400264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02cbc83cdde1b4af92c5e16930f6cb0c1b6a70c8cbb1544f09fecded3577a085. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QMDA61408384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x634df2b5adca83c1373a4495bab7bd853e8d6d959343fb43babc911f19d83381. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/QMDA61408385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22269e79d11f2633a005d9586fd9d8706f49552fdb6c4f529343291b6b96dfde. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA61408403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf1e95a99cfa324bb24ec47e218dd57619e5c4436fe152f14ebb558dbd58248. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FRX191200117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8915d8ba7fa6b32e91d72a839f35f1598e245c224ed06e58c4839bcffcaa5bb3. 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/US2391462601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a0c9ec7cc72707657573abdac557ece4830a5018a5f9e0d5eb533bc564d1163. 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/US2391462610.
The Story of Ska and Reggae, Pt. 3 - 50 Original Recordings
Kentone Ska from Federal Records: Skalvouvia 1963-1965
Ready Steady, Go Go Go - Soca Roots and Caribbean Classics, Vol. 6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4222e675dde8a698ac6e384223758c41129163bc3534e6dda89b26e8e6283a71. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/QM4TW1585754.
Boogie Rock! Jamaica Early Rhythm & Blues
Jamaican Summer - Classic Artist Series, Vol. 9
Jamaican Summer - Classic Artist Series, Vol. 7
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3795fd081575848ef7d300a9ed517646a5574008d00e3fc8dbf130f1ce2e996. 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/QM6N21549022.
Soca Roots Summer - Mento, Claypso, Ska and More, Vol. 5
Soca Roots Summer - Mento, Claypso, Ska and More, Vol. 3
Ready Steady, Go Go Go - Soca Roots and Caribbean Classics, Vol. 9
Jamaican Summer - Classic Artist Series, Vol. 10
Blue Beat on Your Feet - The Ultimate Ska Workout, Vol. 3
Soca Roots Summer - Mento, Claypso, Ska and More, Vol. 2
The Roots of Reggae and Ska, Pt. 4 (50 Original Recordings)
Blue Beat Gold, Fifty Ska Classics, Vol. 3
Ska, Bluebeat & Reggae Roots Hits Essential Tracks and Rarities, Vol. 2
Kentone Ska Singles 1965 - 7 Singles Set
The Blue Beat Records Collection, Vol. 1