Jan Rot (25 December 1957 – 22 April 2022) was a Dutch singer-songwriter born in Makassar, who was famous in the Netherlands for his many translations of songs, pop as well as classical ones. His Dutc
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 0x81b4446fd0a11cb8037ee5a4e29b6851643cc39141a059a0d555ec263add71ab. 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/9ada3e83-fc04-4f5d-b7ba-23768b8708c3.json and https://artists.proofprofile.net/proofs/artist/9ada3e83-fc04-4f5d-b7ba-23768b8708c3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
"Daar Speelt Een Prima Bandje..." (Singles 1980-1981)
Alle 13 Schubert En 7 Nieuwe Klassiekers
Hollands Requiem - Hertaling van Ein Deutsches Requiem - (Live)
Dit Land is Jouw Land (This Land Is Your Land)
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 0xd54be7df8a636ddd3ae4d9bd3e8c3b4971c4403a222729ca547bc8ce89ae67cc. 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/NLM551000001.
Halsoverkop Op Jou (Can't Help Falling In Love)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97ee398a0d14a3d69154652698e8e167651cb76edfde20e8c08ef3ef38267f96. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/NLM551000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ccdc377831e33128743c8449fbaff8ae56434c3c7d4d14b9ce699019a421a38. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/NLM550500016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadcc7c9bba19e51f600d8732eacb1d34ce01db43889741440a04d9e5f8d4d9cd. 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/NLM551000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e2f194bca7eac740c35154b111500ad52ffe3c6f49fcb5987cfb04581ea19f1. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/NLM550800027.
Eenzaam Aan De Top (Jan Rot Zingt Randy Newman)
Mahler Leeft! En zo klinkt hij in het Nederlands (Live in Gouda, 7-5-2011)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2da0f0c810a5f063e02940c83f57c95967d7feadc344d4aa96f200cd4b3c7e09. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLM551100036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc391aa2b985eb69646dad595822c8f82b3728121a4575770da439b2c1ec27789. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:32:18Z), 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/NLM551200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5536900eacdaa8e16e60435a2bad2b37035e84668b785726b15a57976baf31ce. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/NLM551400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb68ee95694e640d135c948c5e960f55e5e2caa8a9d0bc274088337e4fe71f17. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/BEJ039600012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e2e58d3a9f9f78a14d7b5ee7cc43c0af840854d6b40e856a5545341fcb1f229. 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/NLM551900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb70cd956f7e5e8ae2093fd75da4cddaefb83cfbe6750dbb83a29a0c3a1e1ab3c. 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/NLM552000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4aaac4d16b92d16be76cf440b4633664baa8cb610b4382223dc5dacb3a7cef9. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/NLM552200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb0cd6105089911d74b988a4c177301e8fec328d629d2421a6967193dc7eb30e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/NLM552200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3616f7e98624f13acf00e929ac59fbfd579105627ebf0714c4083322eea6668a. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:02:30Z), 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/NLM552200019.