Lavinia Meijer (born February 12, 1983) is a South Korean-born Dutch harpist.Lavinia Meijer, official site Her concerts have included a solo harp evening at Carnegie Hall in New York City. Education
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 0xeeeddaa8333dfeb1f4b1e6c8a687365639f3bfdac5d99f3127f328f59a68e863. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fcba0b56-9a2f-493c-96c7-a63731e56749.json and https://artists.proofprofile.net/proofs/artist/fcba0b56-9a2f-493c-96c7-a63731e56749.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 0x2ae2094a6b4a77c0f3a87e29e831f2644bcb807c69d2262cbcd3d4a66615170d. 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/USQX92401557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe938995d49f7f14843686386f9178af2a6a49e7d108394da32cabe0b37a9419c. 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/USQX92401568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c709014da50d6b8f54981c662fb1b477196f33e853f6e6dcf48ff53f8bb35ae. 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/USQX92401558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90317c3689987fc73ed08f97694c4cb63f58e8fba8406de7daa1f84978d95d58. 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/USQX92401565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c3f6378840ed0ce5f4aca483026affbda7daa1f1fa217090a57db42ecf9196c. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USQX92401569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90480e89627ff2b7e5681572b9234779a72ccd2d3189326a1eaef0385f437c02. 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/USQX92401562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaf0f4a884c977fa464acf73c7aee6e3325e2a13df64d0b60b3ca8847f7ba3a0. 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/USQX92401559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa485537e9602dbeca4e59451c07a6878f6a5e40d353d2bc16f192c0a493e74. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USQX92401564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3bf8836c5ca9e21df4a4008f3ef2cbf1992ec73da3ab59f7ab7076eafef2438. 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/USQX92401556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2731317cd53bbac5bf5fd16e93e0ebf2e5434eb03fd1fa7f370b74acfdf7ab5. 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/USQX92401572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84b86c0171dd68aa44196ebd9eb6e3f7e4ce59237b2ab9ffc98166743cb0b1da. 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/GBF071302810.
Rooftop Kiss (From "The Amazing Spider-Man")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x083d41ada33fa52fd52bb5c46f23a447d13c660f5dba265fc3a923848f8b4478. 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/USSM11805228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2355391fee88801302fc66be47ff0deb99ed315f73ecd7ff667dd135c29c0d48. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T00:59:12Z), 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/USSM11410626.
Somewhere Out There (From "An American Tail")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe98affce2230cb8a528ed6d56af1ac7fd93dfa16756db893718e6756bdf4989. 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/USSM11805237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6ceda5519ed07612d333b88d13d5c3781721c5d6bdc04e7e4e66a4b92143466. 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/USSM11607334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c7bbb023eeb306d868b5ae8a3496cdd8c8413c98ef18a04287e847f15e424ee. 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/USSM11305820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb00d8971a51d5ea30ad4d9e77ca1573e217c0e8b8808871cb07e389accbaf11. 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/USSM11410623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x083d41ada33fa52fd52bb5c46f23a447d13c660f5dba265fc3a923848f8b4478. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USSM11805228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a0ef51af3265e7bcb86d7d41f563f928f84e70ab3cde45e535994d205a5646. 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/USSM11607320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c7bbb023eeb306d868b5ae8a3496cdd8c8413c98ef18a04287e847f15e424ee. 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/USSM11305820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5b3fa888a88b3636066e4a1ca69e59e3d3308f0c7b3dad0debe16456e35e3d5. 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/USSM11305817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb00d8971a51d5ea30ad4d9e77ca1573e217c0e8b8808871cb07e389accbaf11. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USSM11410623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2355391fee88801302fc66be47ff0deb99ed315f73ecd7ff667dd135c29c0d48. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USSM11410626.