Suzan & Freek are a Dutch musical duo formed in Groenlo, Netherlands. The now husband-and-wife couple of Suzan Stortelder and Freek Rikkerink have released music together beginning in 2014.Welingelich
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 0x0fa3f096c743e347b1114792380677ff666fa90ce6cee291bba0f21d5f4800c0. 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/932c7555-da0c-4589-970a-57e74cb9b71e.json and https://artists.proofprofile.net/proofs/artist/932c7555-da0c-4589-970a-57e74cb9b71e.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 0xe59dc388ee5142a47c5f206617593a61f832c88b723d318504951cd84b924ae8. 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/NLP761700058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x524cf9f19de9a1d0220e23b37c806803b2b8752bf4216cfd28a37f9f2fead83d. 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/NLP761700056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6788cc1626bd4dfbfc44904b098cb94e213fb601d345b88da2dab1a4a713b14. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:26:16Z), 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/NL1281700041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf7dd76c1d4d88345305a8216f569c0819d350c9787f13ae0fbd78bb89a82827. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/NL1CK1800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff7b7e499b8626ceb5f1190ab5b30f1e46cf93e09ddd3e09182a1d9d54bbb1d. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:20:42Z), 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/NL1CK1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4b7b0a22183961d7b6fcdbe2e4701c9a36c6c322382579459611df81364a6c8. 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/NL1CK1900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a42c9805ccc27fd9749c3d4cfd4b1b4d6f5af223bc9e0cf9fc23b23f42a4693. 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/NL1CK2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11698b27881d3152b88205853392d8b1d1852391a8e68f41019f2182f31f5de. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/NL1CK2000004.
Beste Zangers Seizoen 2020 (Suzan & Freek)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb40f3870de02916827b2d0408a4289379e93a2dd141b37a2cff27724539b98a0. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/NL1CK2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab31a408652af868f3be9fedcf0d7cf3ef324dbf387f7c191ae09c0c21deb2b. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/NL94Y2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a42c9805ccc27fd9749c3d4cfd4b1b4d6f5af223bc9e0cf9fc23b23f42a4693. 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/NL1CK2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24cba17ebd0460a848174c1482391db702a19658c13587ae0b28698c97a68e33. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/NL1CK2200002.
Dit Is Voor Jou - Uit Liefde Voor Muziek
Scared Of Yourself - uit Liefde Voor Muziek
Voor Het Leven Voor Elkaar - uit Liefde Voor Muziek
Dit Is Voor Jou - uit Liefde Voor Muziek
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4451af231f8faf50c01df0954bd7c0bd9f3ee30507513bb1e9ac3f5a7f40df9. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:24:53Z), 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/NL1CK2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2461468c40d71b755f13625cd2e407338ce5d87fa6eb759b098f5ba661f6496. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:22:25Z), 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/NL1CK2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b286a8dd0145388a8e6846b1467d8ceda4f5bbd1c9b7711f21c082933059a03. 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/NL1CK2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x655a90b20ac1c701bcb026bc2bbc1a91b60e3b922d49cf21339628ab548724b0. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/NL1CK2300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf27511679822d036c7fee305cfb81c07ff0344a733a5f4f56364bc288bc38a0. 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/NL1CK2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x077a0dcae664577715e62c272ee24310f61d14c0d685eedb2c17a105a0bd31ea. 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/NL1CK2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b286a8dd0145388a8e6846b1467d8ceda4f5bbd1c9b7711f21c082933059a03. 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/NL1CK2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1444b9aae81bb7e2add6a347354e9c50f9e9dce485d01f30f00807b0def2eb5a. 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/NL1CK2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87b1002cce7586216b9a206df28c0aaea10eaf5dfd76889bc4fed54fcef6487c. 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/NL1CK2300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4608c99298517fd5b2ad347437c5600d2be3f8701cffc2bec605d225344e8f39. 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/NL1CK2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e79e9a73d89c1ecbfa9b19bf599e179fbf9e398ca987d7e637dc389b9b0b366. 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/NL1CK2300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f0a3454cdc6f4b3c74059ecf353824d3541667a64db1181cfee25a2f8f8e53. 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/NL1CK2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc5a1d6e5aa0c4edc2fe05a2056c278496bb78ed795dfb97f2759af74ded397f. 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/NL1CK2300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c2b9447c13c118aee350cd0463d75e2846d67187d80b1d8cd79607a301ccd57. 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/NL1CK2300011.
Als Ik Mezelf Verlies - uit Liefde Voor Muziek
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa67df3c96b4dd31ab31f1f19d0b8821d8a6fb9abf8d5c9cf67362122c07b418. 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/NLSU32000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b9e783929e157b429ea396a00c960cb080fac6dde241dcf04d333617009591. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/NLSU32000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e3e09b86d9778e9f7b7fa99a47bc70e8d69b04b8e54f74386a7d50f0341d2b7. 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/NLSU32000042.