László Fogarasi Jr. (born September 14, 1980), known by his stage name Yonderboi, is a Hungarian composer, music producer and visual artist. His debut album, Shallow and Profound, released in 2000, br
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 0x4f3dda1c2fb61eff6076c0d99fb8bd60bf41ee865f7732dccc5d8a9df91cbdf3. 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/2b62d0b3-92b7-48c1-a6ef-2ba5c1e9dd54.json and https://artists.proofprofile.net/proofs/artist/2b62d0b3-92b7-48c1-a6ef-2ba5c1e9dd54.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 0x3579a4747a0b96ec9b5178e05a4742ba99f28ac570779bf49b3584291d1ebcbc. 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/GBKPL1358652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b22975b830f886a9f25ec7f9f414284542fed81556a488981e71bcbb280314e. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/GBKPL1358655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5f0d6b70177ef3a3be13020a09f7a267d990c9f19e15e86e70e536e3bc74bb. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/GBKPL1358659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea4a64fb2d8da66002f1c2217576f17828604859f64726d0c2c19c09f40d382c. 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/GBKPL1358661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ba48817ff3fc21c7e80aa4496a3e2813a7bb8b1d288ca612f4c1cf66451fbae. 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/GBKPL1358662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6fff660459b6897bb4235badea95b63f7ceed241f26663d386a7de368002ba. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBKPL1358665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1643ba50daaa883da9eb53938e61f64019bd581c9fa8c7338b0545db8bbeda07. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/GBKPL1516805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10d5ad57183d7f935d8a7c2f6ee05b2f092e5f30573d0a6b83699cb426f829e2. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/GBKPL1516807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x323322a1cf6a04b7d3aedf4383cee122d2b4e35f483138bc7930c66d3528767a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBKPL1516810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05358e2f913ab38f3fadf877c54a11693c445aca8cada79189d2ab82babf7a5e. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/GBKPL1516811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b19b076e3c9025598894b11588a1a0793054cc0775246c0659834a50a01e26d. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GBKPL1516812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b23c91d50680d12ecd5e832b20d5f99b93d64ae193c0fd3141e6a1745f817eb. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GBKPL1516813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25e5ce774955ba38e4089fd4aa7c83a0c937f59fe1900f3198da6828b7899dc. 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/GBKPL1516815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d42cf05b91c2fdea46e5daa9877a62d26da3d063589f32518a9688a39c9b3de. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GBKPL1358828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0172deca2deb11d7dcc499626c496616dc64d54a0d8dc6c97f21d68b5dc95175. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/GBKPL1358830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x217b93aa894cac561ca2f4e1c7478af31cf224b98bbc743aab21f6b12a135e67. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/GBKPL1358831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dc506a41deb6672caf35775219d2114e6d9863346d7fd94e9d3e04b3468a1ec. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/GBKPL1358832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc308f2ffe00b41440a6bb0cc989d1c1ebd1529cac8a0ae7fa02f496118945700. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/GBKPL1358833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7ba29a5524668afadb3be5cc94f1aa3cbaa105b58c0c4d203756d67f70952bc. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/GBKPL1358834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd78be2d614f47eadd75faed39bb8f9adb512bd64b30cb3cf48e3cd71e7cd4e03. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/GBKPL1358835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f06a42cc9a475cff34639933047ca4d2dd8b5e6161d375baa4ba69a7251e849. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T13:10:36Z), 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/GBKPL1358836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa448bc83a5a67954811aaa6443b4c58c9e1c0b32c9adf2e51a88792853c1a6d. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GBKPL1358837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa068cbb05e9c38e1937567b37b0d45857468d01733cb8836afb2a7c14b1feafa. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBKPL1358838.