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 0x3d2f0a60445ed0b7a193f449ccb90732e6982aa4911be1e2c036882c400ac194. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f653fa7e-5374-4c51-904a-eff5d5f0ae84.json and https://artists.proofprofile.net/proofs/artist/f653fa7e-5374-4c51-904a-eff5d5f0ae84.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 0xfb87c4cea25a4aff6bbf92776fec69a6376b323321a980257ac69c3bf51bc367. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/DGA052504415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed0ec173011602fce0baf95c1b33fa612799a36ffc2ded693ba04c20e1a9cad. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/QM7281555713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c9c561cbbe8de02de72072f04b108099f021e2bbd7af6795724c61e1283ce9a. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QM7281555714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x138f8d1078a9362348c30e17cb6bb3512da8166a3336f03f96aabd363f6ed1fb. 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/QM7281555722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5d84bd35b6f37b8c8c591944f961eb207ccd8021b1c5050fe35dab6eab70084. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:08:46Z), 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/QMDA62148420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55669ec51953812e64841cbbabd8bb2ec520266aa979ba9644a24e19f230506f. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QMDA71565704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a0ba6d4544f325d288fda5188ad8411901015da93358515d7bea6e6b7495dfc. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QM6N21562757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x464df6d6c421ccf45c1b8b3dfd6a45d4d285bae4770b431f466fd230228dd438. 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/QM4TX1790016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c2d80dbae1c3d8e50c9703e9200185712eeb9a77927c951700c5611330032e0. 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/QZWDW2207329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a8f02019268f72eafe01bc4b15b496238b3b779f47e222902afea32ed23a796. Chain 2 (Bitcoin): anchored in block 957633 (2026-07-12T00:19:47Z), 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/DGA052344531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb157761cd2a036e7039dbfde5a0c9f6dfb7895deb18c288a96b4d51b6e52f90. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:31:58Z), 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/QZYFZ2386849.
هكذا ديما يصرالي كية تنسي على كية نخسر ما علابالي
Ta3rfini Rajal Fhal Dirili 9ima Godam Nass
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbef6ceeccad94ac63844ed38cc1836fe6f9e3a762de3f08370fe55d5661e8a8d. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:35:32Z), 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/EGA1K2303091.
كوكتال سطايفي عراسي تشفاي نهار اللي تلاقينا
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac77fc70e425752cdd5fc5f7090f324fc0d045be6f952b09d3477906b3e21ab. Chain 2 (Bitcoin): anchored in block 958681 (2026-07-19T06:14:54Z), 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/DZA102500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa028c84ba3a7bd76b6f3ac8822b51713446a995b68f7958d747d2928777bc345. 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/DZA102500255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cda49e766ce875efcd3dea6bfe9c9290067c7bacf3f3b78493582da5fa8f798. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:51:40Z), 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/DGA052543524.