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 0x474e63eac08c358983281c44904a853523e5ab58173827cfd06326a979197e6d. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/88c0a4d2-662a-40a6-af9a-b13e9ea85345.json and https://artists.proofprofile.net/proofs/artist/88c0a4d2-662a-40a6-af9a-b13e9ea85345.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 0xb007bb0d5d343e16affea9f4caf4761b49060c78badb1eea91d9df4235a04f3e. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/RUB421701565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce5c70ebe17ec6a01cb067534a2c64993caf83c0e8dc2f44e63d067073847495. 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/RUB421701555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa4486f79c4cbfbad1a096260c2593517e2ab29cc966f0359c828785767b4e34. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/RUB421701563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1e02802c22d23eb0a9b9eda0b821ae81961d432bdb2ee31cea2e2712d43f6f9. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/RUA1D1925224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71159169950fa93b242130ccee3660593d864d3f0404fda8f201aa5da7db734c. 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/RUA1D1925223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fbd7bf9491c352b41f08b516570bbd213dd919c043cbd2cdebd178e22b29b19. 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/RUA1D1925227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3737c62a91803593fc65f163c733683a36093510d1112aae1bbd81aaabdae4ff. 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/RUA1D1925220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4699e0e11b9280c48dc1b026d913f6d8076acedaf85a401f598648667e0b013. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T03:57:48Z), 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/RUA1D1925226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ad30d40afcf0c35dae8c9d320cab281d8eaad65a7a5c327e6cb02e7d008b8d7. 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/RUA1D1925211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b5bd82eefef4a4e8570920e0fc058d810f8b26ecd89aa91894ec10375ab7a5. 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/RUA1D1925222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7813801c4a372a6cda86c5ab0915105b2a172a1e6026a7b6c169493e2ab9c47. 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/RUA1D1925214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05228dd34b7ef0332a91c023ed10f4e3e0b83cfcea4aee89cc238fa49139436a. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:18:05Z), 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/RUA7C1908388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa53eb06e6f64011802e0b342157bac7d19449d9422d73a2c00edf4a0faf1a433. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:31:03Z), 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/RUAGT2210171.
На самом деле мне нравилась только ты (Radio Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb16f2b12e3d4cf9c55f234d43fb2075385df2fa7bb573bea84cedfd85ae0b606. 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/CZA231800389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad29d887d7bed1f9bc224b7eb29d3ad3684c21343304fcc0f12482666835a634. 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/CZA231800391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x803e0009aa0e67ae54c6f130aef4e790fb2bf63655f74ec1dd3278c47f32d232. Chain 2 (Bitcoin): anchored in block 960387 (2026-07-31T10:06:30Z), 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/CZA231800388.
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