1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xfdfbf255ec82e6e1855b7804ee409adc3a05fd3713cdf0f4efbfcde40edf3ead. Chain 2 (Bitcoin): anchored in block 953780 (2026-06-15T12:02:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d343fdea-88a8-4d27-9249-a08bea35192a.json and https://artists.proofprofile.net/proofs/artist/d343fdea-88a8-4d27-9249-a08bea35192a.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 → block OTSBitcoinBlock must exist at that height 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 0x1514211f9f852d597f368506085d0b46f36d113a52eb5383972d35f460c8ef07. 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/SMRUS0073340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa938c64b01563e6c714fc5b4c30260885b17f3045a2bcf993b0bf48c49a327dc. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T22:01:52Z), 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/SMRUS0073347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db16571c42e1b6378b71ea478b53ff25a7c879e856a37a6425d1999aba8ec67. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/SMRUS0033437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbbdda0ea8e25a237306416e03a9bf0355462dbb4380e6e1f3ed72632c5f8242. 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/SMRUS0033440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc370c466da78f52255b83fe088de25858b19cbad14165ea389ee078cb529545. 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/SMRUS0033445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaeb3eaa43f3b0f553892a65202ba7abe45699045f146419f5cdf61f3db342b1. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:39:59Z), 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/SMRUS0054121.
Вместо тысячи слов (Памяти жертв теракта 22.03.2024)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd941d771ef7328f8f7812e181df84ddac534ee78d8b92c7fb0e33bc6a85d5963. 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/RUA1D2543883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4781ebd142fb1c2fbba60d5ce1fc2bd698a1b0d473b7c0385c005d6881b894c6. 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/SMRUS0062403.