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 0xe05fb0fd717cba78e832964634a46a4fdef65d1d19d3ab878502a755456726a2. 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/ba59dbe3-a0a3-407d-810d-6360ba6a10ba.json and https://artists.proofprofile.net/proofs/artist/ba59dbe3-a0a3-407d-810d-6360ba6a10ba.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 0xaf78f7e97a9d4cdaac81a436c8669caeea22f07064f7a231cef0f73524fbb9ca. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZRP42230514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c33c5f81c8c6b1d0ea282b2b9bea4667e0f20868abcbc9d5b9ad3c615465cf. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/QZTAY2353294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe1549df236082f629881c5f420d5fd3c91ccc75fe51e1af3e9d68a0d97e9f6f. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZTAY2353307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9879e52d4bdb711440bdaf7058587564cb4b64c5de7afedd7bb8773ba4dc2e6a. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/QZTAY2353403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a316c16750113b5e935a250c147f3e36cf7980a37ba821218080a049a02a90. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/QZTAY2353510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf630e55b02aa0c27bd9999d0b24c708bcd033f83d4d872be1a0cb625c1680409. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/QZTAY2353311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf928397e03359fc1a2eaa1d6cd34c6cc89041c7f348e222c25e2050d95bea440. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/QZFYX2449931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d44cbe5ab3e7c7b133a48ec8a7636fab607c064b7b75e99eba6da2e1cab598c. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/QZFZ32415809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x157efb3543c6040fd7df10187d7c427778c081808813100e59bb046b6dfbd06f. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/QZFZ32474534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8752df9225efa68437e3d0274f5fad23862d44fcab34b824d9aea42e3fd0bba3. 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/QZFZ72489615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb190bf873f96b6f2c64d9890d26e9f1e56c3967a946a225001b6ca8d7f1618d2. 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/QZDA42469248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd93adfb849836ea32af5465fc6919a72c975952842653964652ceadf146fbf03. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZES82424165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3927ffef7133a8d4936bc2f36bc2d866da2a3f1466c607f695276903300126e9. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/QZK6P2480925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311fc2a445c67f6644a72fad30a9d8b5814b3d2b6c5613cd6fcaf7ec21dbf707. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/QZTAW2466564.
Mosaïca (Live at the International Festival of Carthage)
Jalsa (Live at the International Festival of Carthage)
مستنياك (Live at the International Festival of Carthage)
جانا الهوا (Live at the International Festival of Carthage)
يا مسهرني (Live at the International Festival of Carthage)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64ab1e7e09a8927cd7ce1e63d64e8697cd0632e575086c864df0c7a5cc4eb87a. 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/QZFZ22596098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8e8c5cfbd12ae958738ede436c4aa4ded72fb853260e398aa201e91401f03b8. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZK6G2521563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a65b0b523c25606a4ed1e1200e7f1ed98f08ed827f751fac828599bae9528d. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:33:59Z), 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/QZWFE2539270.