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 0x37362935ccac06106baad4eba5c6e0f8248864086fa44dabb37c83d72d30f4af. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/819947fc-52fb-4448-aa55-7876c896271a.json and https://artists.proofprofile.net/proofs/artist/819947fc-52fb-4448-aa55-7876c896271a.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 0xc6006bafb2a2ce93d31dbb4976fd5d3072711701b49f91c68272655fea5394ac. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZES72140961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0231b82694e15b31debe90d659dc467b814461a21936cbaf7da7aab2ea3b132. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZES72140965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ccc7b503c42d37e08d5986ec6ecc642cf5019b18141e2820e81f217571a94be. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZES72140966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7411e37a46fe602200f0c014b4de71ba1dce2b30735ec875eb987cad560788. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/QZES72140959.
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 0xb0c06f526c468e7825edc85beb8bd1b3de15af66960f2963795d162001cc8907. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/QZES72140962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5af2a615e367822f6f3ca67a9f635badd18ce427f836b1c67f32547b08b7d12. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/QZES72140963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3210c2ee2e3f2d115fd688e4d7656abdea4cff4ec3564ea0e9f2086d4edba748. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QZES72140964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c28c15e1ec266298ef89c5b6a7b1575be19afd78aa84c4d292996c23636e81. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZWFJ2432680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4c037e7be827b8571e197e0f3a9e941552c478789ae0757d935dc94032d18e8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZWFE2431438.
The Journey (Eternal light Kanun Improvisation)
أصل الزين - Kanun improvisation - Essence of Beauty
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f8b56c6110ea1cd763c95b9bd3fa15e1921917614b6a3ffc70f57dc0d7c5f64. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZWFM2363375.
The Beginning... Liberty's Dawn... البداية
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d24a1c8c006c0d08f9809a17e4f8a2d0218cdd218f4e4d083ab0b12f9e43de7. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZWFE2355070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33e863be4303967ac39f9ef98d4f3d95c842ee8b50b0cdea493230a252fb9d3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZWFE2352159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d47a1db513f1be826b336a7cd2ff0f381d1e3a1cdedf1e54f7fd8ecdab4f57. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZK6N2350705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff25fce63dc169347bb186ee59f1b326cef1c56833efffcc210bf6b674ae94bb. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZWFN2326797.
Taht El Yasmina - تحت الياسمينة في الليل
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x455ff2e50bad1001886d18428a7b486636d99fab107c57dbc3e3b13ccb213c6a. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZDA82203652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa48bc94752b1ad1d187b147873779d116bd1cd1131f5973afdc1ba98b95a3861. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZFZ72246810.