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 0x00e4dd2a943153c0d893d415b5fccf2888b28362b5cab02c6df1ceb06f6eff4a. 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/fc5c4a57-3cc8-4acc-af4c-9a7a0625caec.json and https://artists.proofprofile.net/proofs/artist/fc5c4a57-3cc8-4acc-af4c-9a7a0625caec.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 0x6fde433c4d8af0411c992b98fd74e797c0d6f9b4d2e449907d71b894ec604e54. 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/TCACL1628714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x843bbb084fdc8da7db7f5d13824cdc6a8dd67a0b5967322240926da8e4c7009e. 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/NLFV91500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4afd6c16eb0ac6673e3270ff02231d04cae9af2b3e4a168280f42d7270348bdf. 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/TCAJF2513442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf5c5db9bf1b1db340e49a677a2ed510f0b55e2a88ab8ef814c2e9fef5a2c260. 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/TCAGT2356876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6437d100581c87f71889601227d286b2d358ec10d6fa567a6418f8069a0b68e. 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/QZFYZ2375153.
Moeilijk Straal (feat. Ferry Van De Zaande & Fred Van Boesschoten) - Moeilijk Hardstyle
CV Moeilijk Straal Van De Bizar Fraaie Kaart
Moeilijk Straal (feat. Ferry Van De Zaande & Fred Van Boesschoten) [Moeilijk Hardstyle]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e6ed7f4cfb15b5c434a2b56762aa4bab6747591502088e3d2ca97a6dcac139. 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/NL7GJ2200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf40c80fcd54c48136ff333c32968f7949aa4466cd48e2bdd4a9c869e4700a9e6. 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/TCAEP2044538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6306954d62bc426e0c5d80caf315565504675e638d46a1a5e2da2e68565901b. 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/TCADK1765291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fde433c4d8af0411c992b98fd74e797c0d6f9b4d2e449907d71b894ec604e54. 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/TCACL1628714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x843bbb084fdc8da7db7f5d13824cdc6a8dd67a0b5967322240926da8e4c7009e. 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/NLFV91500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd42b7ea632dd668e105505e780d96c31eaf7cea7d2da3e66f12fe3bbee09499. 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/NLL6R1900220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c17108790b7771b0e8664e76cab38cdcb35aae86eb22213266524f6c51f2150. 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/QZTB22291116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc76fba46a6d6b5743f2b0e1b3f5a2e5ba8ca25da20515d977b5f381d562cf28f. 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/QZFZ72276279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c17108790b7771b0e8664e76cab38cdcb35aae86eb22213266524f6c51f2150. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZTB22291116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81e4e8ab9999fca292a9898dfbc9a9bf56cb5090b7ab817c4cd358c79f51c54. 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/QZFYX2471756.