Sidney V. Samson (born 2 October 1981) is a Dutch DJ and music producer. He is best known for his track "Riverside", which was released in 2009. Career Samson started DJing at the age of 13, focusing
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 0x2272e8fcd083420d3d0a4d1b6dfba1a53e8e317c543e3495d693e48ceeb52baf. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e9d1bfe6-0983-4f64-a5d8-e2719b9022a4.json and https://artists.proofprofile.net/proofs/artist/e9d1bfe6-0983-4f64-a5d8-e2719b9022a4.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 0x6766febed4d74bb877182e534ec9a41a0c0680b2aca264f09b8c38c32fc4d475. 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/NLZ541900140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76e1e2a8dd1a4cc47ecd221ca33b29e6486b2e150bc7bb7740f1ded42cf5ef36. 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/NLZ542400129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6edec29ee15c591f00a699e562d52cbfb430dc927709155ae8abe88c53f92f32. 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/NLG661800308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34b700e1ab3ed1528919eae7e1da305e27204e1e6998dc3f43c7c05799c4a6f3. 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/NLG661800309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x281257da4b7a0ac093eff2c86f213c8b403556c1520b799152235df9ffa766a1. 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/NLG661800310.
Take Me To America (Sidney Samson Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a60815d1c38ec5ebd9a272315c3291281d007bba4c6479454d2b00a04d5d4b0. 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/NLD682102041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x518094ad0191705963983322c8b5bfa6ca242b8e92960f5c3c8943b4cbd11323. 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/NLM5S2000833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe07e15cc269243b8c3e072750c16b8e4b89ebdfa8b794491ba827f3b4c188b17. 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/NLZ8W1900083.
Say My Name (feat. Bebe Rexha & J Balvin) [Sidney Samson Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00d727f604c58eed04e13b9c54d8011b33518f5026502fc975a44624ded4ab2e. 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/GB28K1800277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x497be58071199347a461e0db224728dea30c08ab75ad7eace64185505e0104a9. 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/NLV5Z1800020.
The Officer (feat. Bobso Architect & Hosai)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x101a4bc3928a3a58ad2c882efb071d41715ee94905dca1d19fd0ea26c0cdb74e. 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/NLZ541800100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37a3bdd74f7dae8080b75513b90afd5cad9a7f527cce4b2ae81ddf6c16d4da4c. 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/NLZ541701695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c0df2a2492dbe8d7073373fc9ae2aa1511acf5684ed2e8a4ebf386bc96945a4. 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/BEK011490072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e5092e4b436fa6fe2671a5ff3ee4032cb7b831535ba7c8e3da99995fb550d86. 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/NLZ541400130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b70e9d19067c909e797382a2ac91ea9eebbcb0f58ede4ded72d028b3388c05. 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/CYA111800207.