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 0x8d797bbb092a969442c9c75828d3e8347bd3b5626d674ebad1612f55f8126b53. 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/f45003af-a019-4ce5-b04e-d7ef19c831c3.json and https://artists.proofprofile.net/proofs/artist/f45003af-a019-4ce5-b04e-d7ef19c831c3.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 0x6a9967f00d02c4b25aef7d4988c4bceb86a38488f8ea5723cf541ede9c5d8237. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:06:19Z), 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/HUA611500571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6785077e0a9bad29a1a81ed8b368e75e8fcd19f6f7deb3e4c5301d6400073823. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/HUA611500574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fba4244aa89a375f0ed6382ea2800170451a3b33fd94cfc9ac24077d9d2d76b. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:11:01Z), 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/HUA611500575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d713d1202f56190075e61518695d88b50a1a21b3862fddab875c6790726bfc9. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/HUA611604444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07044d2774c1978ae5095ee9c582174564c07c18678731a8d521845389d2695. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/HUA611604445.
Nem Strandolsz Jobban (Strand Fesztivál 2017 Official Himnusz)
Nem Strandolsz Jobban - Strand Fesztivál 2017 Official Himnusz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cfa23150f0400a1c92fb9babc732738a185605a109e13df86d3aa4577fb5d8c. 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/HUA611701715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72552c4efab7990d65d069e724f1d8df777037f329df2ae8d98da42225ef1475. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:21:38Z), 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/HUA791900081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e02a89842b9d862bfa5cb4df88751df6199a9009233d6bdb4026814af7f51d. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/HUA791900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x834644815629242d515e2d414086e90a3f77fd24c6a3b3542628906855450002. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/HUA791900095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c40f0e2c86e427236da8f7ce52a31a430da4bcef3ecb34ecd10165585e4be2. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/HUA792000244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf98ecf41e74beb854953fef94373145526fb2d50a155b161120eff19125388e3. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:51:24Z), 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/HUA792200125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x029bad349f807ed1867bf3491825dd7fd44cbaeba3501d24e71374b80b6d50ab. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/HUAYE2250001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8db9f7c2147ce06af00372e78c8cee151d9d6ecd8e08e1276be3ee94d9c946d. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/HUAYE2250003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbba7f41f8412d4cfc2e55b43a3db2acd03e49dcd0b4bacbfcfc6bad651953b4. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/HUA792300093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb56e54d32a4cfa1dad51c1572822ac85bf9e41d23f0496bbfdc8052602beac2. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/HUA792300141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd19389e0cb8f33d8169caa9917b3d232ecc63048b357a60496fce33d73cc1fc0. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/HUA792500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b6e2799a485dff86c44c5ec227c40ad31916d6233dabf49685c39b78c31a264. 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/HUA611802843.