Ophlin Russell (born 2 January 1962), better known as Sister Nancy (or Muma Nancy), is a Jamaican dancehall DJ and singer. She is known as the first female dancehall DJ and was described as being a "d
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 0x0f6a285a55c4810b279f6a05b7dbb29f16d4a99e7c35041bffa316b937f5f894. 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/3a446043-92f2-4bd2-b304-e49f9c5ec045.json and https://artists.proofprofile.net/proofs/artist/3a446043-92f2-4bd2-b304-e49f9c5ec045.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 0x5fb57db96df89505809a1053d1e3324d9ca962ff2b9a99e9e581bd7ee0877f1e. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:44:25Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2P0804881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x456590c125e765d63cf67d15ee651c2cf1a4360a31553a6d5047b0878d244ef5. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2P0804882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33496756216b251b30ced89560eefdf255bf8ddac1629ec0e06d0312b1b2a719. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USA2P0804883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f328eec1d39a08c25ef921cfdf3a39e6e63d636698df6055a80edcf93d7993. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/USA2P0804884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93193a01d842240c28e79eea81575cfe11e9f31393b6a1b1a51d203adbd88aee. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2P0804885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a5c71d9d6959269ed6e1aa55101895fa1ed275cd33ffa2b95e906a39e47e7d7. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/USA2P0804886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12bbc668dd9a75c260a547100e8c02df33520bd92a50480a26a81522a9f5ccdd. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2P0804887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x151498449affde471b605c295b799f80a6ad0a0e2e32b3aec558ce38c1648cad. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USA2P0804888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e9db18f66e45303ed78be819a996baae67abc9e2e12f14f35074a925ce9a2b. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/USA2P0804889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3442f00294082a31fa0bb9155c86f8220a3bd3673e6eee9614fc1ceb8242e9f1. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QMDA62118512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcceac256d5d17d71fedf36a0e89ea52a3b5999963a9b5f7d9aa4f8f4c0f0e493. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMG2337887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7488ec8d34b3cfc5882d2caf8228a4e58c66e1d87d95943844219de46e2e123c. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/FR9W12415887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf3371535af3231de527daa52fdc2893d2de7ef00b2db9e4436cc224dcbe965d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FR9W12415888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d465bc6ce38765efd851e8ec4ce324968167620f1dd788b5eccd161247423ce. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US38Y2433867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cf640d6dac1f04fd15adf2958740d5717985e1b34e2cab0ee61506336ca6d40. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/US38Y2433868.
Riddimentary: Suns Of Dub Selects Greensleeves
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8b3f38c67f233c11556a70b13300efa1b7dc15767d3fe2751a92b3422229b4a. 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/USVPR1601271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37c5a052e838dc2aa4ad8d082c15d1ea56f42bdbd7ffce7ffd0815354b8da7a0. 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/QM4DW1793171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55218ea3c0daa3f44501a354d3eb661ab3b7632cb6ad84c0854b774996c400d9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USAT22305096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55218ea3c0daa3f44501a354d3eb661ab3b7632cb6ad84c0854b774996c400d9. 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/USAT22305096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eaab30fc0f19c5374e81ca1afcf9a12f826fa46521806559fb50c695c2d7ac7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM24S2206754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06788b678539f09ef18b1b9d3cdef32e24d87855f793aafc561f2268089780eb. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QM24S2206525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03681759aa9681c5e279db93f7953a6a8b0a239cf63c962555200d21963ddfd0. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USESL0609508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32bb45126f507310e878b35c6a6df6eded68473a2afad114a442bc50c6c363bc. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USQY51738294.
Reggae Anthology: Henry "Junjo" Lawes - Volcano Eruption
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d722bd2f1bba7d2a6c4ee4a2c441d0c5d2b3e7da208d72544a22b24f2f2250. 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/USVPR0916308.
The Tropical Club Night (Compiled by DJ Ralph von Richthoven)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bbbaa764f0c78e96cb0cf1fa5ec5695a1b6caef59d306b9e37c03ed45968918. 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/GBSXS1300152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc473fcb2b5151a7fbf21c1f66e6ba97ce9c4cac7ac69b4c9e93ff5da40f8fb2b. 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/US4CL0210091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaace0d772fbf6f6c20be5fbe94fde818cac4fccd0eeefed3be1c409e5c30776f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USA560553221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc605f3ebb12dcc178d42ed22daf87d18f64ee9496c3009eef3fca026ef3ffac9. 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/USVPR1601275.
Reggae Anthology: Winston Riley - Quintessential Techniques
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf46252454d88df7f29a7fdd9615a110181359677d259550f1751e53cac4bf14. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USVPR0916052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a326852a9daa00d5124e35e12b4058cd08c33466f3541dd378f03a84a5e3d1. 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/USVPR0916054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf88cbe9f30c9521dfecbc5a7a4da56d3acadff6db5c9240293e71a9bb796cfc. 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/USQY50976198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x028a79c6dcaff0ab5dd646c0a34051d2bd063a3bd815e07b0dd93af1e5217a8c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/PYC842301160.
Dancehall: The Rise of Jamaican Dancehall Culture
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfd407177491ec89bfaddcce295d7b43c573babfff746dba301d3c35cb024815. 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/GBBCK7700135.
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