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 0xdf6e96f902a4d5481161c4709b77bc3e6ccbeb0bd7019b4e6653197974060502. 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/b6190f0b-a054-4743-900e-e229d82e1fdc.json and https://artists.proofprofile.net/proofs/artist/b6190f0b-a054-4743-900e-e229d82e1fdc.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 0x202249e5c5c5b6e5df575d2cab01ff260c857eda64629edcb081d4178b1ff777. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/TRBPU2000556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22d748d9c70b8a89bb7824f1cdb0cb62e8d6c5734bcdc62f6f687f2ab262546a. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:36:57Z), 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/TRBPU2000583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46a8a0d83e58f7d34ac2b8881ff53555587b873e85fc85473c40c69bfdd78c5e. 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/TRBPU2000588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x330f593233e0167c3306e43aa49a35fd461133f80469afc899d62b245d0ba1a4. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T12:19:37Z), 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/TRBPU2000561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf82d9d3f9d0148678ef5f18d09d28d518433b1aa0ab9a9489a86bbc0a986f160. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/TRBPU2000567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8521e86f7bd2c342aee407579b40f855add4ca71eb57ab4151cb895f480e18ae. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TRBPU2000570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62b1f6a7320a62b13eb32319058aaab99b809716b145ef7a415620cbab4c1b87. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T04:56:06Z), 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/TRBPU2000645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a45bfea10a86c8a141d2997484518858d6149a5170453f185f711bf7dc4ed7d. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/TRBPU2001082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a5c1a550dd53118961a797c0965fb58d24483890fd41d3080c5e88fe6438f8e. 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/TRBPU2001085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cdfbc862c06a1fe7978bc950bedb88da2901489569d21205baf7382dc0a0d26. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/TRBPU2001292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17fc4b879198ff323ab465f94de0c46005d2b8f47dbc78cd752c186282834073. 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/TRBPU2201301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x615aca84a35d370fb7cefbc2245f5efcf835df46f367d3394415c440464866d8. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/TRBPU2201254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x343ede3c9afd3284879551fb0da9ae4e64249c3d2f78dd4a05180891c35e3654. 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/TRBPU2300384.
Ey Vay Ezizim / Hezret Qasimin Mersiyyesi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa3963e65fa73d6c48e309f0ae10178442fc0126496d81632ebd5f421a36fed1. 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/TRBPU2000562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x883cd8d00f374c96d784c950e313a6cb9bf1d5404951fd6a8a2b788e3e07abb4. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/TRBPU2500524.