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 0x04a95e0285335eb191a06158ce076e2d74b5db46c2b00660112f313bc1162109. 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/9a838915-ca30-4894-952f-80b1c857069a.json and https://artists.proofprofile.net/proofs/artist/9a838915-ca30-4894-952f-80b1c857069a.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 0xc7748c97b0516fe3baaacd481c39434006cb7e52d1aa43d790f6fdcb6f9175da. 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/FR10S1857108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x741eb96d839d00b9559ab78e5d68f7e571d4d669220ac9e54456eeac9045dfc1. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/FR10S1860182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed68d64a76594dbe7059dc449171367a927cb0e259c4a7ec616d321b270acfb5. 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/FR10S1943311.
Памяти Абдулманапа Магомедовича Нурмагомедова
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84332deffaad40f3e6325b5b53ea369e79a12a5778a16b9ca9d5ca19a057d515. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/DGA052037451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc6d70f15c668ebb04e28be63b0013bbab9989b6281fccb3b81bb1b2b243378. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:32:05Z), 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/FR59R2176537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc71e856bbbfe713383d29b416be63093f36d5473291c88dd714427fcb0ebc736. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:46:43Z), 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/RUAGV2300813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d77ec2c7a5f0ac4ef71a6b0747b6c5148dec7a235062dbac55c4d873f6099ee. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/DGA0L2365799.
Людское Сердце (Посвящение Бадри Кутаисскому)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e833a7152665de6465b49cacf5dba85fa1621bd81ca08c98d5cf633d6fcb84b. Chain 2 (Bitcoin): anchored in block 957599 (2026-07-11T19:42:17Z), 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/FRX282420286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff95c60247c84602df7a700f7d74211d53d040d80d9a20fedce90d3be29f8e8. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/DGA052407973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0120f4d281c3bb8f21b0bfc64d9660620f55be035bf1f5bba0975bd17bc996b. 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/DGA0P2400776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x587a2dc376e4515108d3ac92681b50bd1d117cb14f46e7e2c1c239113a5e0de5. 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/DGA0P2400775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcf5298ca4d51187c99abddca43e5f603a79dafb2ba0828915cd597f3f8e8074. 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/FRX282589334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b3d10d36081418b1757aa0f3ccc2495787cde068c44bdd2ca5a4646310d5e2d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FRX282589335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d45865302709b4448b9858d9f1c70793847665dc7b9f31070ad70d9b4b926ab. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/FRX282589338.