thumb|.Johan Verminnen in 2014 Johan Maurits Verminnen (born 22 May 1951 in Wemmel, Belgium) is a Belgian singer. Discography 2025 De Laatste Ronde (Album) 2019 En Daarna ga ik Vissen (Album) 2016 T
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 0x2d62d6194a0bbd3f29a96739375c90c74c8244cc168b055fba92884cdbb9f828. 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/6ffa4965-7cc4-481d-aeec-16a30662217b.json and https://artists.proofprofile.net/proofs/artist/6ffa4965-7cc4-481d-aeec-16a30662217b.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 0x6af24ca830eca87705e8cbf4e29e1836b2493fe94c4cefa867ddf74ad4f26a1f. 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/BEL017400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33fffdcb5481fa54bec517a73dee35bef9c66ae79ff62692ba14b79725810108. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/BEL017800036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb74728dfbcdeca2b3ec79c3bdf514e3e633e9b218193c10e5f5129106505b845. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:04:18Z), 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/BEL018400057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dddb1177a8b7bbcc1b6b58794d216cdc2fbc6694f40ecfb903674397c108e74. 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/BEJ010500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x555cee5fc55d8a8ac3e2965515cb43dd4c93c0516dfdc0d9e5d8ad82d3d7061a. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/BEJ010500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e8fd96ffe8cab6ca39272c79c08115160fb1d26362f8699af577ccab73d7af. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/BEJ010500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc3c1e014d25e1b6b1d5dbd149d92cc9782b66ccc12be9f0363541afeb483855. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/BEJ010500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56e653b242f48b4163922b743386c596087b842296bb808ec76fea792d687243. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/BEL018500022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cfd217394ef766b1fdbb015727cce7481871c75a7596939751b82a104f8b74d. 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/BEL018100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d0c8d48d2faabf90db6727c4e8914be16e603bf41398fe4ab990035023324da. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/BEY882500748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf46c335d3244e0fa131af6e2ce10f70d7aed9d951bf6fbdd57e733ec8955fc. 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/BEY882500749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9187e21bc1a957d5114088a92435905be8cfe8c7b279cbc0b4cf9ce0b47fbce8. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/BEY882500750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98c48b062c9b7b690bf5c2d02e3c9f0f0350fbe3f76c2fdd97bec4deb31bf02b. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/BEY882500751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x357eb7a4b8f004221cc8c53eec424b856c6a2f37315812c296e6d806eea482e7. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/BEY882500752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf55337fcc8fc76da49798e804c1daf8d4a2b4076fdde37cb0770e96007d7e23a. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BEY882500754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeb6401deb3089a647291a1c75420201ffdd62fcb3684afcdec1c7432c3f01d0. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/BEY882500755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9383b4e7f5ef055936c4730bf0c64f5f8c5cc15cff8944292fc62d3aea1ec20b. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T03:02:50Z), 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/BEY882500756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x326db493adfd37aa663f17d8062762d7a9c4e10f307e9defa2131337da357623. 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/BEY882500758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a50e917a74495d040344a0e7c66af5d8688f3ea1d0aef0aee0406211b7aaa47. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BEY882500759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c4d3bcb93db788bb118736be122a9f918a8d2159720fdbc0f66e0685aca85f1. 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/BEY882500760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79379aa9da08e9587775c1c65e3b30347a8a628ea6089147da9e9d58e140832e. 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/BEJ010700023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cfd217394ef766b1fdbb015727cce7481871c75a7596939751b82a104f8b74d. 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/BEL018100014.