Xavier Kurt Naidoo (; born 2 October 1971) is a German soul and R&B singer, songwriter and record producer. He is a founding member of German band Söhne Mannheims, and started two record labels, Beats
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 0x15798b5746777d92c957c40771ef2fd10de5a5279228fb1895bc1e8c5a7f2285. 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/a81e07bc-d07d-47d2-b38e-9fb044d1255e.json and https://artists.proofprofile.net/proofs/artist/a81e07bc-d07d-47d2-b38e-9fb044d1255e.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 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 0x5538c564c0d1d5949a954152a6a54d3dc5c17a8dbef808ee48705dec762c6514. 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/DES810200031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ff0cd029c811e64a608737c49f4e283b8dbdf55292aee75527ab70469c21c6. 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/DEVY21900021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9592e38c7b4f5316bac7b172119539452b8dc89f7aed6b7ca1dc9cc91de2573. 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/CHUM71000961.
Exterminate (feat. Niki Haris) (SNAP! vs. Naidoo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f08aceb797cec16da046904832865cc43121b9b62b101149db95db4b157bcb. 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/DECC20300517.
Spiegel (feat. Xavier Naidoo) - YBBB Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56630377ec16d4af812d0a2c0f12711070454e12346f1a11c44705bbc23cea13. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/CHUM71100772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28620ddd8cd5667283c9b7f82f1cc03caeb019e838e8ea5acab980d0409771e8. 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/DEA810801217.
Wenn ich schon Kinder hätte (feat. Xavier Naidoo)
Einblick Zurück! (Mixtape Classics Cuts - 1996 - 2006)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa852c09abb0f05cdf0da09bffeb012d897a260a18439737213d15f31485e557f. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/DEA810600803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed3ce4b5d00f3c2d204fb40dbd454e5d4efb781f1eb926c1ff189f2cca92547d. 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/DEA790104602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55ebb67a467384a0d504dccf0f3498f01f24849b59280a11cbb6b27992abec5. 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/DEUM71801832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55ebb67a467384a0d504dccf0f3498f01f24849b59280a11cbb6b27992abec5. 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/DEUM71801832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55ebb67a467384a0d504dccf0f3498f01f24849b59280a11cbb6b27992abec5. 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/DEUM71801832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce83c4c136ed5b06e3ae02aaf2e0c5585a210878c4547a5dc80bc90a7e58a71. 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/DEVX51900053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2759650b3768f80d140ba5a6e3f69a270ab48c7601bfb717de674234edaceafc. 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/DEUM70600851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f32946c8b5140560d3049f7a7236247d717a395f27675eaad39b5a1364d23ce. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/CH7811816858.