thumb|300px|Jenny Arean in 1973 thumb|300px|Jenny Arean (1972) Jenny Arean (born Joanna Jenneke Josepha Klarenbeek, 4 October 1942) is a Dutch singer, actress and comedian. She is known for her contra
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 0xaab3ad7337e8e4b3d63a2e4a0510a6cbdd7d5af41972c74bfb7ae8689387009d. 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/71f5f6c2-287e-49b3-8387-590f7a5caedb.json and https://artists.proofprofile.net/proofs/artist/71f5f6c2-287e-49b3-8387-590f7a5caedb.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 0x1d8977830c4df0224152bc777ad0e948d128359bdc1ffdf8089c0cd3c177ce00. 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/NLD9L2000002.
‘t Is stil in Amsterdam (Live - Ramses Leeft!)
‘t Is stil in Amsterdam - Live - Ramses Leeft!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2208d88177852bbf3a2729d7dc6d76eda53d3a51211d927b835887a44b405238. 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/NLF7W2100053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69e0b55a7ded0449e8f86110bf9fb1f341607095cdf3a8286a27cecd1c201071. 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/NLA307100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf12c2e9826cb217255b9c51e398264dc232983371eef59fe6e643c33dde71ce8. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:18:59Z), 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/NLD450105011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8359c47bca73806b7ddae41464d3ee5ac5e0298056badb6bb5a1f37719830f26. 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/NLD450105017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3281579812ae62aa120238053d40bd14478c5d80253629f5359bee527233359. 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/NLD459500008.