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 0x0b76b177a1a0fd37b7c532dcf384910abc43856afa5e5ed02a4440bd1439bc43. 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/43b93d35-9973-45fc-90cc-534e51688276.json and https://artists.proofprofile.net/proofs/artist/43b93d35-9973-45fc-90cc-534e51688276.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 0x65ff72eccb25a2eb6eb72669ff3c054a177b7766b748f22a62d8e7c02432d833. 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/QZMER2448877.
Wind Came Out Your Butt and Blew My Wig Off
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c7f288f62fc083039da089b76be8644b28e6756114ee2f0627f20a494afef7d. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZNWS2466861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef56ffe706f3efc858f9b3d77d710c7c44e94ed764baf29824eedab65542e2b6. 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/QZNWZ2442547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b76ec81f2b3608fad606b1f74b7f2497a67e6956c62d47e1d639d8f549e4986. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/QZPLR2405908.
Pimstrumentals II The Pimp Sound from Way Out
You're One Dumb Mother Fucker (1983 jazz version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb95020b82e4cfaa92ef6027f0fb067116b558b543e06b3445f2240019dbbc0bb. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/QZTB22443007.
You Drive Like Shit (1985 funk pop version)
You Drive Like Shit - 1985 funk pop version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf29d6d71703f4ca95f8f5fe61249fc3928db3431cb67275d2e3fbefb350c31be. 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/QZTB82458266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e94d31fafe2fef9c2d6a52badbd000ae25c7fadaa667dbd668567fd2fd26927. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/QZTBB2485334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc40d74a8ea9b48a9583f2f56ebf1863f87572eba0500daecba43ea002b434f93. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QZWFL2480891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5241e5f04fb14234cc5203e0a70ccbb3e833a489df6cbb5b5ee96a8f2a464190. 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/QZWFN2474436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fb2e831d02c5b0e764f1aa27068ff1ec254b03ef90496d710130f1ab87c337b. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/QZWFQ2444007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca03eccdea6c30b01257498cf8e32957f83fea7ea07f97a5fed145696d194ce8. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZWFQ2435147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf494fb4a29de9d350a3d378962e752b3c14a33304825b71e4c8e493c91333d66. 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/CAHQJ2551729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00f78f027e4728883c5da22f167a55dbb9bfcd95164f142a2a82ef69139199d8. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/CAHQJ2551780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe308441ab4c134668cb4c7b5228c5921602022c77cd1baff7a1cbb23a4d22799. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/CAHQJ2562594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f69e4adb4ef6604142b797f3aabdc598032403fbf4f59460b8805629a9e26b9. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/CAHQJ2569260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ebf5f5183d3080ea4101c9c5537623801e27547ab9675615b605be2d3f027d5. 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/CAHQJ2574009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x530a383016cedd13f005e3fc3b99f08016964e11c31b510e807dd2b6d7e5a54a. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/CAHQJ2581273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d63e54d915328c37d2b89ec7ffdabe62a5a6ab1c46e33e99c9114d8725c6c8f. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/CAHQJ2588315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc616973e6109ea8d839944816e0fb51c30df8031e8c91126bb84101af7cd54ba. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/CACWV2501210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6af4913e3ce9173e007e93e6271d09fd1703dab97a510079a25c4a7d4cd973e. Chain 2 (Bitcoin): anchored in block 958143 (2026-07-15T10:15:04Z), 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/CACWV2567125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29c825d52a6e645fd0544bb94877de6e70a4d1a37a546c1fdd6cdb4f98cb8568. 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/CAENV2522211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c70e4c00566f0c55678fcd747d13cb59e010ebfd4dbebdddec00ad72cfe8773. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/CAENV2522215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1ff2b4b547567d33d46a486cc98392b8e3c45acd800e61f5b6cc012f8e8e5d9. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/CAENV2522218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89c96fba302a6f765c90c1d1c952103bfffe6fd598f3582c37d82b68926bee9b. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/CAGOO2555334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f862fb2892a4260bafd0828a628432df23205d7547410f85b2dcea1f69297cf. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/CAGOO2579275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0304b88b4fd16a5cc76a66b0a2aecddeda82babf6d1471ae9c2463d55af3bea9. 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/CALVP2592762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b735cc344655e864241d7d6afe7b5f49c6a3490608414163d919c3bbff9f3a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/CBEYJ2569279.