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 0x2ce941c779af14e67cfcbae85e23fc2c2c364324eaff6986a360ebed614e0903. 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/ff25f651-8386-4322-88c8-311ca55d98f6.json and https://artists.proofprofile.net/proofs/artist/ff25f651-8386-4322-88c8-311ca55d98f6.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 0xc5b410debd978aeceba9798197a8277ea0e4244ec888321d35a41e75677705e0. 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/RUA1D1818409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4040c563821584d8ecc83cb72b00770075c296a88241c6b28a9553f18208a643. 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/RUA1D1818410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x347f4f27af59ee06400482e363cf92b458b227db62c55660e7ad2e284bba35c6. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/RUA1D1818407.
Улетай (Dj Geny Tur & Techno Project Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b2f783efc93dbc40c304bfb8f90915af459e62ed545b6abc7058517a5a51595. 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/RUA1D1915029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x848ebc0efe8c566d3d953d54f8e7c1e5b82a84e240303159bcc65898d0656b1b. 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/RUA1D1923881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e723c462afc553c8fed41d64814ce42ca62b40fd412fd4aa4c41f74d16ecd9. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T22:40:05Z), 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/RUA1D2024905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bc8baa141cf046a830b246b628b59d6d406cfd3cc3b2bef4b34bc127b6e6021. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:47:11Z), 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/TCAFK2191108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6fec61a586b5602ae1bf100f965ee7adfad7672f54d48a9f63caaeadc9e8b8b. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/RUA1D2304914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe53cc7f86f5418e4944a0c3702d92430a0885403d2b0e2148efda1dc56e9b7f0. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/TCAHU2421174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf87901dfe59e8861036d81071d42add3379e0c6332eaf30cb912c09f93976c28. 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/TCAHW2471399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ac74168b077ef7bc60f4cf3a5c3bea1559f7a9c41b4ac74b58b55411a5bf39. 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/FR59R2414223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x009b45d7006dd1b0f33d565097ef9e9dedd456e88a390ba96ec244fa7232e753. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/RUA1D2430199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed83f562663de26955da4cb1d5eb008f379533f099e51a6972e2995576b654b4. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/RUA1D2471234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x028cd5494923d2e4cbbda46106d07af57c14c88d70fa6ed12315dcb36ef52a88. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/TCAIX2448002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73c4f074763eb8a2321e6b4daeffa82e73591c5abacc73ebbd89482d4133a458. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/TCAJC2434186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b28e9d1c9deccc43cc80bf552ac7db7b734c0d44566676eca5ce39b19cb4586. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCAJE2530473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd723a11eb911730e5f0cb318983ce7011b08de5e0e9a8b82262a94e33f56dd9. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/TCAJL2567963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6871062443c000c927cb5f4c5674633ed5d4d9fa7cbd69691fbf0139ca5a313a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCAJP2542103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6b77613e5ecbd8ca4e4f535a4a31bcbdc964d4077f59731808c466992d5b66f. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:25:26Z), 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/TCAJX2545535.