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 0x6eac1088bc56eb4f2c76df561f7087e8da46480d930af18fbb8b609e513dea64. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bf52bb85-0791-464a-9a89-9a39eb9bf4e4.json and https://artists.proofprofile.net/proofs/artist/bf52bb85-0791-464a-9a89-9a39eb9bf4e4.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 0x44d496e6adc38445ea409fd641ef7ca6c53e1298b7d94fcc2698b7a40f79d4fd. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QT3F42445926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a49b2949c7f22d23b8e9c111c1e0f2c79991a6663931765288522476ce99661. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-17T04:04:12Z), 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/QZFYY2557247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x137ebb7a83927d80d1a220348ca1abbc153c521271182d30c9a9f364a2ca885f. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/QZFYY2554884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x861393bb62b284e63a0ed613370e6a38fe58589b0d417c014c3be40ae50ac358. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:16:53Z), 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/QZFYZ2569993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af7155290a1d10701815171247438c9ed8b6a846568ca271b71627a3f871fc9. 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/QZFYZ2571895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a5331a488dd017e25678ed153257fbea9155c10e89c6019710da8906eb7492f. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/QZDA42530951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd473c173126c545dad1c28f2db397ac7cbf7be944dc33e522a0d15abd67e6555. 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/QZDA42535147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d6fc17240d0884c77d84dce60fd15e33fa93de7188d6389390c545f6951be9b. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QZDA42530949.
راني فالغربة لا ما لا با Rani f lghorba La mmi La bba
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36f2f8ed76270345f688e3d57d142669fd317de3e8c21fc7ed5ac6e011326a17. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:38:44Z), 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/QZDA42571738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x465f9be12c5c65b1cbd5374c434de3531cc82c3639f8037de92acf786cd718fc. 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/QZDA42571740.
لا ما لا بويا داري خاليا LA MA LA BOUYA DARI KHALIYA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5804229832d7fdd8f9c13f581689cb50d361d9f84eb7ce8c3cf9d28ee1bea153. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T07:20:26Z), 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/QZDA42571719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac530629a5a2174a2f37a4a42da44c89084605db4bd41b5d47714a25a427e2b4. 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/QZDA42571742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x281785046538d4bffd4d8d2fe4e8701d6faec66c57380956222791076b5fccb4. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZDA52591184.
Houta Chgt Lgalbحوتة شقت القلب (Special Version)
Houta Chgt Lgalbحوتة شقت القلب - Special Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed05f2a8ba650b2a35f01463d62144ae81819246c6224dfd35fa0009cd6a6c6. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T05:00:08Z), 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/QZDA52591155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7dc8cee76466430a87ac1ad9d49a41d5473b95ab1f1768d6b591391ebd58c79. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:02:45Z), 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/QZDA52591158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45cb3c50375928569cb597fe480bd3b81ea1f3dcb6ea09461c774594a34cbc8a. 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/QZDA52590166.
Ma Dar Walo 3lih t9adrtمادارا والو عليه تقدرت
Rani Nakhmam Ga3 L3amراني نخمم قاع العام
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x735e43b5b2e85e0d48ae3739aeeb505ae3438f0f053b6a8e9e96150352d5e8af. 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/QZHN82594658.
Mabghatch Twali Ldarhaمبغاتش تولي لدارها
Twahchtek (EXCLUSIVE Live) الشاب عمران - توحشتك
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x402dcbff9d4ef9981ccc413bf03004fd39cb375ccc7be52e0ee7caf533f615d3. 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/QZMEN2545119.