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 0x14e330c5093c6fc4cadf8c5578072b81ef3fd10944e2a0610fb8dedbd574444d. 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/e7b1b6d7-4562-4d29-87b2-7c75e13abe79.json and https://artists.proofprofile.net/proofs/artist/e7b1b6d7-4562-4d29-87b2-7c75e13abe79.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Yar Yitirdim (Gide Gide Bir Söğüde Dayandım)
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 0x029ba36e247c45c1064dcdb83f1942e6b923cc3fa8c1176de9f69c933c405b00. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/FRX762022595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e58709260d0caafa2fa4203fdb122c1abc26d5fd414bad5f214b04e300461c3. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:05:15Z), 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/FRX282146147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc61351f53c01ac9bff9ac58e553457c8477858c31fa5e8f9fbf4fd71763b070c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FRX762155482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa65ddd07d1ee2b6bc2c642a680e234ed79268e648a948b4c1d9f8b671777d3. 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/FR10S2230392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b369f6513ad5282741da88887ffdae7baf6eb3851e43415de8df397c06a7c8e. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:11:57Z), 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/FRX452294908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x823f6d8e65e7001101fd0ae28eda57ebcede47957ea8c9300712492fe20e217c. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/DGA052354260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x892d94e442b7bb532dd2f8a97277c6ffea1d0676c8a95650a5292ff35ca842b2. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/DGA062389679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61730fae1c32113523a08044a0623de6b7ec2206f924cd1a528fe4f043abbd82. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DGA052567595.