Errol Holt (born 19 July 1950), also known as Errol Carter and by his nickname Flabba, is a Jamaican bass guitar player and a singer who was a member of The Morwells and the Roots Radics and has playe
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 0xfe7261a93a383e09a2b67caa006341faeb030455462119b02954eebc7e7b7ea3. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/922eeafb-b982-4661-b6d0-7084344a168d.json and https://artists.proofprofile.net/proofs/artist/922eeafb-b982-4661-b6d0-7084344a168d.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 0x7b5835d38b88aac3935412ff572ae9d511fddc0c889102120ed57e50c160b7d0. 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/USQY51734061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ff00d7a32b58dc00e9b2018d0e7d3f02e2412d22a85bc51ffe9c0f00a13772. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQY51734064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eddf927c094158b17e85065c274daf47ab5698b52ca428ccde735c4ba14ee80. 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/USQY51734065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a38555212baa4abc6d20e7e6bf8b2f9ce11dce71818e770f75ebf4f1172e17c. 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/USQY51734066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26e5b38c3d6c964c899fe014b2482b8e8c4f3da1882852aa08bab7c3140be736. 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/USQY51734077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22fef7222b34a78e234393f5998bf1843e43a1cdde414938c757d6cc6d5ec81b. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQY51734070.
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 0xc7e976906b3aaf0189488904b6ebb5156c27080667dbbcdd0e8d57af42759cc7. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/USQY51734076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed4d2a2acbd871ebead09da3534ecc47124f23893cffb2853c9166b95970ccc. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQY51734078.
On-U Sound Present Reggae Archive Volume 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda78d555348a624a07e6ceb15b3125cf003229793d6b6c304ac830739f76921. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GB5952300093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b296edbb7b72ae39c605a9eb45666b3bf200e7729c6f75be47fcaf914aa552. 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/GB5952300096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e37e9a66ff409a5e12f011b3d9b29570f00f44d4d60e7483168480e374be44d. 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/GB5952300097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4956b2856e84d14b569f734bdca4cb2cb1591f9853fab05db7ba6197dfe1d26. 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/GB5952300098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32adb7dfe4a1e873c254022a5276769e3edfbd6b20ddcab408248c2c1bea7c94. 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/USL4Q1846685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72a4d0d2bb683418d42d1d00c7d5d94ec23016398ca0cd94f5846a02e9e5ddb3. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/USL4Q1846682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccbde32835e385f33d064566aac1f4ab3007f91eaccb6549990c0f684fb61560. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USL4Q1846687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603791791a97ac42485c41ce9f3c1e62208b58396fb6a2ad5cf60ab99a2e03e7. 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/USCGJ1545351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21b9d4ff5f4dc0c8f3ec0c0c1be2079180f7081e7bd45325d3f89fd9f2aea83f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USCGJ1545356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf12edbf69346786651554bd2a264c308fc7e61ab038701e115e304ed6cef07a9. 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/USCGJ1545358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0afe0788859af425cbc58776819f6a758731128b0f922c063b8450da1183e93d. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/USCGJ1545352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81a01b46481ce6026e8f4a87461f78693e24738477eb7f9330eeb324ebebef5a. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/USCGJ1545353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcebcc8d758e67ce09925b8f34c0cdf7b77c1a1f269fd169d71f0ca4dc55ba2de. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/USCGJ1545354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x415f6080655a9c26081e12c9c6503eb66918a01c4a2e718a5d4b6fe9bc4e73bd. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/USCGJ1545359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa24c410b4561933763604264e301a2e135f356208726df28b4cf68ef845c67. 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/USL4Q1844728.
Reggae in Orbit: The Productions of Enos Mcleod