Ricky Koole (born 11 September 1972) is a Dutch singer and film actress. She appeared in more than forty films since 1996. Personal life and career Koole graduated in 1995 with a Bachelor of the Arts
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 0x59a2e927a9d41405cb5e36f9aac33cf1892c19e5ca32ec37d5eba3725d6d554c. Chain 2 (Bitcoin): anchored in block 953660 (2026-06-14T17:20:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/549bb8f5-268d-4e56-baf2-96fb2a8e9e31.json and https://artists.proofprofile.net/proofs/artist/549bb8f5-268d-4e56-baf2-96fb2a8e9e31.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 0x7e8e4979fc177024eab5ff90a7ce5f4f1e346f1f605e9429b8696283578816a4. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/NLAR30700118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x805e85a4999b21767aba04b905e11a89e1205e0b86c04aca95bf2fef20f3d23a. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/NLMT81000023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf741058a5c7ed01ff2daa1b3bfeb8f345f2bccf2d8a3a568050715e4148c8c07. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/NLMT81300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57af3bc0afc48c9725df5db142174a51f78db14bca35e79b97e6c634eaed363e. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NLMT81700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e76af6af6befa1420a6bb9f824c1cd7a1a078452786a87ac7171504ba2f936e. 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/NLMT82000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79304da3b6b673dbb58e1a145a55b2044da3ed5567755fb071229c77fd75461f. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/NLMT82100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34f9f51c18ca60abdf18952556a6504d0257dcd2aa800fcf52dad13ca5fca85e. 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/NLP972300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb44f60b3d0dd5083fb919a60ce8dceffe590c41eb8b25359fb1fb0aa74fed8. 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/NLMT82300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d3f3cec3b2bd034165cca2d44c22b94dcce51c57be682d64807bb2d55f2bdc0. 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/NLMT82200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b953f39d4e95a3fa1acc9ec99f0ac3f527c57574fe4b5c888cd1ec8e33f86d. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/NLMT82300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54c07c9a385626d5583474f2ca2935634ebc33e39f9e4222f0031f98de04829f. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/NLMT82300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89932bc2a5a1cc2181939a3af087a1d4f677acb854ec1eb7e00aebaa5b119175. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/NLMT82300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e740147d5cbcd12b0aa821937a45678ffe4d896cf4377c3eefaff3c250bdbe1. 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/NLB601400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c2028d1c049d9d18846171c88f452f3bef3747df12dca478828a59b34660cb. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/NLB601000349.