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 0x54c0ad51bdc6b28fe546a615cad2aec5b9c248748091497e37c3543758389ea6. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/665b9a6f-e897-4df8-9511-2310697c73a4.json and https://artists.proofprofile.net/proofs/artist/665b9a6f-e897-4df8-9511-2310697c73a4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tilawatil Quran Qori Qoriah Internasional, Vol. 3
Tilawatil Quran Qori Qoriah Internasional, Vol. 2
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 0xf06a899f021e38fc3d09e76d993bb0331b54288b725aa2ba50e34ab31850eb8f. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/IDA430302068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x557a00207fc9c19d7d557a2491c42954b4ff92b9d1ee5d5d08860ab3a19190f4. 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/IDA430302069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x065ed4186cf9b218ec97306afc1a4f702251a9c751896caadc0ee44f35b92935. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:01:45Z), 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/IDA430302070.
Tilawatil Quran Qori Qoriah Internasional, Vol. 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x338978d06db541f5c1d52232ad10b297d6288c994d7b53c96f75969bdb537ab0. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/IDA430302080.
Tilawatil Quran Qori Qoriah Internasional, Vol. 4
Pengajian Ayat Suci Al Quran (Qori Qoriah Internasional)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb4c3e992b45efc59dee530d5fdd4c069c2f7ed5bc8b30a12dd042b1fed0a3d3. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/IDA430302065.