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 0x9d858e187afbc36ba98d918a4a6ea60eafa92bc85f69204a4a7e672c51ae578b. 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/c0442ded-fe83-473e-8381-d7912345ade4.json and https://artists.proofprofile.net/proofs/artist/c0442ded-fe83-473e-8381-d7912345ade4.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 0x23d030603670f075f005184efc493c054589139eb7bda67595c2977b4e6fbcbd. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZYFZ2398308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5a7e7b91b015dd711791fcf5cf5f17a711777da573bf5dd61c84d45fca79fa5. 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/QZYFZ2398316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x905ffc3acfd2ceff69c5ff63f26cadc6143491d488c6a73cd14f8c9e869ba07d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-20T13:53:16Z), 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/QZYFZ2398328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f7325a6491ea56a2f8a5489658afbebc25212f283db1e36f25b1598f8010011. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:26:38Z), 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/QZYFZ2398298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1675d280f15362ae28c4a68c7c76d9fd190aadbfeb956090107013323db9957. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QZYFZ2398388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x286432f1c7a559a855a83cf9553de4b429b14ee314e192d61aa5d9b1fe50edec. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T14:07:58Z), 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/QZYFZ2398391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce93a156fc912db8df47f2cc17314b357bf1f1314fa445097db3ac3a8cd1cbc0. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:37:37Z), 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/QZYFZ2398256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ea07367a2b46f23064168be275cf355ca5e97ac7496851d8b01cb6554544da. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZYFZ2398244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734b9164beee6fc9ca2eece30da658a2ea43c3e4dce83249fddd7eb15ee35173. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZYFZ2398253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadea6cd232fe89b0b8563a378577b13f63702681704004fb0707b1e7d34b5461. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZYFZ2398254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa759ee07bc2379b56c693b1dcfe9f4b32a41f49bc1fd960608e103626d41fdfe. Chain 2 (Bitcoin): anchored in block 959071 (2026-07-22T00:59:15Z), 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/QZYFZ2398255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28cbe73da815004fb244933c695c7c5615c8519ac5c73d5774b92e819d690918. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/QZYFZ2398258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd3952673265489eaae7423a6d649eeda4bd7263d2a805a86c6eec0bb69cc9f5. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:21:04Z), 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/QZYFZ2398261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1321120bc1a7890afeb8e4fff966683ef1fb94ae07f6105730307117e5c6dc43. 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/QZYFZ2398265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a056e95ec2d000d46b4409ff8c3a970bcd4d3bae9f2e048ca9ed88df0ac1f0. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:49:33Z), 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/QZYFZ2398269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f49e1745526a89a49367184d79f5bdea9890551abdb0cddca86335b223e4a63. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZYFZ2398273.
Al Quran Sheikh Madressa Kuwaiti Wajid al Murad bin Saeed