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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ac4f44b97e45ad33e2e6170dfd984e2b3b178af2ec924dfd55f0bf1e893136. 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/7d20065c-32cb-4f53-af6f-85887836618d.json and https://artists.proofprofile.net/proofs/artist/7d20065c-32cb-4f53-af6f-85887836618d.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e748b8695f741d9b7fedaa7c93c95604ef2dd4a57c69cbdadbd9f9cfa9a6324. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZES92142378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b16a9e642e327f339710547214b2688f33bb37c95111da2a456d0008ccc7247. 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/QZDA52271891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf1a848ff3c9cacba7903acfa1583392a46820175fe19e08f91969a9d76f5f74. 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/QZHN42227965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2802c649feaa7bd07ec5940c912e15ce2303aeff79150bba27643c2aaaaefc57. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/QZNWR2269031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x353c9767959d657812db7f483ff1cf135650cf51b415b9d509762c7ac0ad7932. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/QZRP42256579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x685268ddab79bbcfb9f526e013b7d0eeb672513a46b7a4ff04ccda899359f644. 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/QZMEQ2379521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b7b7308bd49f496f47d0e1727b62d343521ecc57510ce4c857a0839bf04987. 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/QZES62483262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e863e1fbb364252adf9f6ebe32aece8b834c9d2bb24d19f8b6637d3f001e86. Chain 2 (Bitcoin): anchored in block 958678 (2026-07-19T05:59:57Z), 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/QZHNB2407608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0424a61e3dcd130abe9232b2a9d9924fa4b39d24ffcd3d9b2b97a7a7c43b86ea. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QZK6Q2426676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5317ef77b67bc9cf2b7fcc2c7b234f0491c4c82150f732de172fd28a9afa9c6e. 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/QZZ7W2471425.
Drub Al Huriya (Vocals Only) | دروب الحرية بدون موسيقى
Talaa Al Badru (Vocals Only) - طلع البدر علينا بدون موسيقى
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe38d74296fe9a98de5d50cb94803d4787b090b5aa375ee7508bccd8e36b525da. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/QZK6P2534103.
Tashawakat Rouhi (Vocals Only) | تشوقت روحي - بدون إيقاع
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6850a8a83646474d7c15ae70140c8870775d28fadf0494ae2423bff074e87c35. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QT3FB2547582.