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 0x3970fdc8524753d53f1b4e887511d7d69c1e12f0286547f087ac4a8347b2e512. 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/c4272dfc-b1ea-4892-b581-efaf2e29128e.json and https://artists.proofprofile.net/proofs/artist/c4272dfc-b1ea-4892-b581-efaf2e29128e.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 0x61600c0699e45e672abbbd7430bc6df8a6b6a9c605a33dbca9d1206c75004894. 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/FR2X41840664.
Королева со льдом (Sergey Raf & ARROY Remix)
Королева со льдом (Sergey Raf & Arroy Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf29ad55349824daf219f9b972b8a241e4798f97255d8dd5489952f0b7871e85d. 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/QM4TW2080603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81b619ce9b2ba55a63c92440e6b41945bc667c4531bf0d62ad4e1a138f2d277f. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/FR2X42072413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa0c076dfa1188fefa6bebe448ef49f9f007c12978d237c0e8841f30c795b55d. 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/QM6P42085665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e8f37e98d5b4e188166b28d4a8ef9ffbeda4ef814a62ff4f87c1a6540c9a8c. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QMBZ92087904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad91513020ac21011226965cb35f359745e000dfce84fe6917861d9c86cb577. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:56:54Z), 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/QMFME2078286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c942aa5cc9af9889f145008fbf0626406947af43a17c389be0b10241988977e. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:55:14Z), 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/QM4TX2100368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a45ca4305cfa7df13afd5d72e7854386b2e19e43c88a3485f8ebf440bdbb83f. 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/QMDA72158866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f3f45f583aa7f2996e54bb746f14e4289265b9169d0fa79b1e8c1eb7bfb59e. 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/FRX282294696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a6b64b0fc25cc13bf090fcdbc1122feb2f58b60de673b087c4147ed6b119b31. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/FRX282294697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba1ea160a806715b84bd29798d113fbaead52d29b139ccd45dbe0081249ddc9a. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/FRX452249018.
Я сегодня буду пьяный (Sergey Raf Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66aab8eceb3ebe38c9858a2451929c76a9be675b80cb666ed294c9ab3b0a7f69. 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/RUAGT2224961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x759f36019863e5da3fdc103e94faec084a041c393439120cbf95b92870dbd4ef. 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/RUA1D2347065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534e7448c789a8aa02ef80bae2eba47b8cb9d3013f6095e733643f799a6853c2. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:02:16Z), 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/RUB422302166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5728bc1cb6d78667a43663749ce85fdf4ad11e5c5b9a11ad8ab464b396dfdad. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/RUAGV2305539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aca0d719d744bf78a45f1110df2b250d7474b4902725b1b8b78037849c0a5d0. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:56:45Z), 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/RUB422402281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d6332bba905b51840ab73b459960df9114bcb2cfe8327007bfa0837f0a6425. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/RUB422403629.