Carice Anouk van Houten (; born 5 September 1976) is a Dutch actress. Her first leading role in the television film Suzy Q (1999) won her the Golden Calf for Best Acting in a Television Drama; two yea
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 0xfd448914b2a5bf4dbfb4ae9dd29d20882da6291ba0ce73e410e3c2d500d3dd40. Chain 2 (Bitcoin): anchored in block 953714 (2026-06-15T00:43:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/85c193a5-07f2-43b1-bfd5-769ea47add11.json and https://artists.proofprofile.net/proofs/artist/85c193a5-07f2-43b1-bfd5-769ea47add11.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 0x12fb8468c7b119271a96a7603d1acc20794ae1bab2af9dde15dc33594814e092. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/NLA271200225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82c50d45823e8c8e89e7ce774c935aca6a10097256667d33e6da256b5a99fc22. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-20T21:58:33Z), 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/NLA271200211.
Het Zwanenmeer, Op. 20: Prins Siegfried Is Jarig
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82b31a64dd6cfc44b52521ba0bcdaa4cb1cc065e1636dfd9c145445af1b29a39. 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/NLE070500030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71bad91bb693d8c8b66c0e149645ba7052fa20cd70532542355a935fb5824f63. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLE070500031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d405022c1e849d1f83ea5c5238d6d9ef8a8b19603a108fc439a1d0dc4ce194a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLE070500032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dfe2d662fe2d54c39be1112b5ff11be935e663e77dc2d0b05d33cb597fdda2a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLE070500036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff9ef4d3c028c34430110153231c0622f4ddb797ce428e0dd4f82273e8f1e9b. 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/NLD450105003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x297b16d7fadc6c99132b402953ef48cde97b9d507804987a52a9136978ead993. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLD450105006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf01f148b1c30a314374e38068c426816113d9880a2c62c1e9b5f04840a7ecb9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLD450105008.
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 0xcccacc3d706af3e6da89b0a8305a10d8364c32c4c9f3e136afe309ab0536646c. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/NLE070500033.
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 0xfcf8f2f07d6675f2524b8508f53c99d0c10f06652ea999a406f136b66e284694. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/NLE070500034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e714a100eb6b1b834cf21b3f93a758b705bc8d9e479da4e9dd62da055c03aa5. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/NLE070500035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c6644c72f420166043c0e01921e3b3bf64915c8f30e7bc2c529a2c3fd1ab048. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/NLE070500029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d67ad2a78638d4ad6a8196e0c79ff583103a800b2c4a9f38a4980f7335f2e9c. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/NLE070500037.
Het Zwanenmeer, Op. 20: Rothbart Verslagen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c4f01dd28b008cb99d4f57025f40387326bf4b781192a3067ffac38491ced08. 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/NLE070500038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a55be3713cf60c5d53d7fd743c04bd842d628b7c364b529fb223d2188c63c8. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/NLD450105005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c6eb9029d8726bf21613e4f69cef5563733056bc21193b5480a2f638620be8. Chain 2 (Bitcoin): anchored in block 960231 (2026-07-30T08:33:28Z), 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/NLD450105010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce62423c381353a3dd544864682e377b2fc232cf3a0e5ea3f9e78d2955bc6ac. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/NLD450105012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d63520dcf2eff1665831b4525f80695c1d02c16ac874f45d46a9a1c61085d8. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/NLD450105015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a8ac345d83fe4e3b2d5e432c6c6382e3406e98b17d452d5cd7bba0bb2b32aad. 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/NLD450105016.