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 0xbd99d3b09584809aebd233c16358ba6779bcdd42654efbaa647e92fa0a2194c2. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/006fde11-9f13-493b-9ac2-8a0a5f7be0cd.json and https://artists.proofprofile.net/proofs/artist/006fde11-9f13-493b-9ac2-8a0a5f7be0cd.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 0xeeae2954832521cda1701ebd2b6bd0437de5cd42c538ad335b6017ba4af269bf. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QZYFZ2486477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bd1421e6fb34a0b087e827fff5290bc8f16920aedcd7e956fb0b44e77af79fa. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZYFZ2486478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b8a6626f347c197e22051b49d690610b62976e76cef1f26ea0d78c89912b7ba. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/QZYFZ2486479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade63c2bf084a8cfede19113c035d2ea1767a6cda10480aece4a32e919663b75. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:55:07Z), 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/QZYFZ2486480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7ddc8025139844da7284e5678f4d2230cd48dda9baf3bdaf3be5263e5694ce. 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/QZYFZ2486481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb72002c4e662d5820f694cad4981870b1d98a0610db60aa7893b251fad9c4242. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/QZYFZ2486482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f054b958c717cb4cdd64e1ab9f6dba1fa4986c2a3bb8cbd149e3bab3ec388a2. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:07:12Z), 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/QZYFZ2486484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ba5434e04e3189348a91c15c74ca932ce46fe98438c8f45e19848d4045dd500. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZPLR2480303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24edd811e0e69fe68c7ddf54c960ea15ecfb20072b15d1cbb59381ae2cea30c. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:47:02Z), 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/QZPLR2480304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0bbdd913bda9174aa90a5a8f0061f4a202568e556e5275c6cb56184059de9d3. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/NL8RL2426397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c54a2df58d14a381ae9a8f72d9b43fb9784c5b84539f32daede16baa79f7819. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZWDW2427387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f6f9aafb291f1f782c038294251c7e7cccbbde332cb9ffcd9019a278fc99789. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:08:10Z), 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/QZWDW2485342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6be956ac04c90ac18cd3da500a6bfa8fed7eb86cd25b0cb79edb6356ecc6bb. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZWDW2485343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7caefecaa272f06642dec4893850b554ad6235ab5daf52bcdf9d140edeae431. 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/QZWDW2485348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d8c88719d57cbf42f6381e9a05cc345638bd74a106b688ca7fd89d6a5846ac. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZW9K2442633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe41c89d7340fbb64dcc90108b56f47dcb51372c79acb17f9430f5230b28c2b57. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZW9K2442634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0047bc137f3b4a6f5edf84d0251cd6abe6753ab076156417a3ffb6eb699e2680. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZN882434732.
Intimidade Zero - Ao Vivo em Caldas do Jorro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x305c1933d868dc3dc83e67f7f4669fc28b1803c8ecf849e2055d9c68584e2d89. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZN882504263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc459ba40e990237cd1a7a8a9507d87893e1391db71e56b3adeb394b9332e1569. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZN882504264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f6b4061d2ebbf397280944b92ca428395965685a5d2d855ca1391d626b175c. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:45:00Z), 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/QZN882516671.