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 0xad88fa489a3a382dcf01d6ad541a3236d7538017141c895d9651437ef469f06e. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4cd05a88-545d-421e-9edd-123266168475.json and https://artists.proofprofile.net/proofs/artist/4cd05a88-545d-421e-9edd-123266168475.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 0x68aa359b08321be77fd33833ce87424b97ab69097ab19df2e86b2e8018a60de8. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/RUA3R2071848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04fd023f66404aa64b0569c10ce170317370df939372123d627b3e6f4177fc07. 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/RUACR2401342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d952d69dad1ac2d3d959a4e4de855bf592d04385fcb0d99f819c3b0f90b035. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:41:14Z), 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/RUACR2401332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dfa71f7b87892451369d079d7d1cd3d3f821829eae24eeae7f972fc4b31e50b. 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/RUACR2401576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x189091aa78b29d4512edb6c076db78ccbecfc863e70850e609b556fb623d9f32. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T16:02:01Z), 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/RUACR2401615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a6fd264a3e96c84c3fa88c26df9ae532edeae34877d3c083c97cf22afe1dc6b. 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/RUA3R1703842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea3291f850ee430cb8e6528daca75749d89cb78230e3912d7e4dbba6ce84f668. 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/RUA3R1703862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e9c8b66a4c38608f05fd18e7cfeb90d29c30d32b1f3ec13029155fba6efd36. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:46:25Z), 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/RUA3R1703869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d3646a90aa151bba50ed9a14443d53d846a301b2cb9785953992e971493ff7. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/RUA3R2069604.
Весенними дождями (happy hardcore remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5120b674af4c6b567259dd5398270a5503879b3c6add97180254967f17237f7b. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/RUA3R2136789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf36b536518b4145f6e3765270182df5623a3c91bc5b552a5001af46d907882fa. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T19:03:16Z), 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/RUACR2200575.
Раз и навсегда (john Coffey & Misha Mentos Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeb9d5592dd42fe233fd20611510c433fb625aa8db5b01fc6b5581281e5deaa8. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:09:36Z), 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/RUACR2401653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1d18152421f6723f78a197955eaaec265dd4b5fc8eff122776f89280f68a328. 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/RUACR2401919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd795bc0b3bfd91bae06444bdac412b8739ea895cb1aa2af165f7a20e090a0069. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/RUACR2401951.