Willemijn Verkaik (; born 16 June 1975) is a Dutch singer and actress. She is best known for her stage roles in the musicals Wicked and Elisabeth, and for providing the voice of Elsa in the German ver
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 0x45b81f80e93e5d76b0dee3c12458594c876dbeaf8f9a28f6d85c36e15d11776d. 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/1613b0db-54cb-49d0-8b44-bcd771d5d747.json and https://artists.proofprofile.net/proofs/artist/1613b0db-54cb-49d0-8b44-bcd771d5d747.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Wir machen den Tag zum schönsten Tag (Aus "Die Eiskönigin - Party-Fieber")
Het gaat de perfecte feestdag zijn (Uit "Frozen Fever")
Frozen (Originele Nederlandstalige Soundtrack)
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 0x50e0f65d3aa7275bd1bdffce51e05c076faf9e0bf9ba3bb78c38cab7fd8ec344. 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/USWD11467821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe469bf23f36067ece3df64e719e900604261d657607f225c1af56a1ac4c54a1e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USWD11467973.
Voor het eerst na al die jaren (Reprise)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc543c145dabf35ecab540a2a5540d26dd64336a3f6da4944dffc2ba8a30d3a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USWD11467978.
Olaf's Frozen Avontuur (Originele Nederlandstalige Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ebdfcaa05485fe1d8d3bbb01f01a3eb9c6f6d6bbaa1e069bd5de52faca9c41a. 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/USWD11783388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e03727b31138a9eccef8c1d0f53e2bfec8a76d5b85c1359c33d47d74fbdeaed. 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/USWD11783393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0518b33ddfda7430a6e75b235b8478a0e8e275ddb25100bcbe2f5c0accc2b521. 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/USWD11783391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb81c867d444893c2e93a7c3f6240a58577f3710f0fdceed1168798d59209651. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USWD11783390.
I Will Be There (The Count Of Monte Cristo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c27811d4abdfa32339f908b673a323e86949ac2eb872ec3e6934cc16ed43ee5. 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/DELK41000071.
Solang ich Dich hab (As Long As You're Mine) - Wicked
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x408a6153493d702d62ca2481267ac0fea580904f22786d0a5c7ef3f5b7cbe536. 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/DELK41000069.
Een onbekend oord - Van "Frozen 2"/Originele Nederlandstalige Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72b274240ac223bb41df879f17dca7de0cd2eb41ac4e88ce5551324bebe33502. 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/USWD11994899.
Frozen 2 (Originele Nederlandstalige Soundtrack/Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea142ef772b2611d6af6414cf02d69d219322c18270f45d98d611d4b12d53c0. 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/USWD11994898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72b274240ac223bb41df879f17dca7de0cd2eb41ac4e88ce5551324bebe33502. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USWD11994899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ddd1153c654c414c62276ebaee5fd59c91ae5e9bcb9b76ea59040e6e4561d7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USWD11994903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd40cc6aaf4f0fed5797300fd311f541fc87e17db882ad0bd9e7029eb72a87ce. 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/DEUM70712481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f24d8698bbca4d1bf73e8a41113378e1a634058b23bece3b1cd37f49935db80. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEUM70712482.
What I Wanna Be When I Grow Up (Special Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe02465098b0f76d97c1a4563f203c7cc0bb8e32750affddd36419924a6a55e52. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/USHM81209698.
Let It Go The Complete Set (From “Frozen”)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e0f65d3aa7275bd1bdffce51e05c076faf9e0bf9ba3bb78c38cab7fd8ec344. 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/USWD11467821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7039a4ae7ac059e926b810051a8912c000f6c931368572c19265a8ebf04b9282. 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/USWD11366456.
As Long as You're Mine (From the Musical " Wicked " )
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7254fdf621f7545595a32e32638c4e7e61d816ceedbf70b5707a2fada19f4c36. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/DELK41300356.
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 0x622e685023d632d830426fb82f57d601ff4e68681e577d6a4bc6c3289f5b17aa. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/USHM22267624.