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 0xcb0f002f2b6cf52d8064588ae381d2b44436573c32980cc692c7c0b6554f03ab. 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/553eca28-de9f-40e9-a37c-5fcb281b1a08.json and https://artists.proofprofile.net/proofs/artist/553eca28-de9f-40e9-a37c-5fcb281b1a08.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 0xc35320603f74068ef2d8206f8999c67624101b30ff627d672e0060e6bbb793f0. 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/QZNJX2045219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0420c7bea033cd516922b7aef4ee1b70b6706804089ccbf014e2da76195e7d18. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZNJX2045221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10d5e16c33f310d6a73c9db78f4f350ac4cc7473319f105354024dc06fba8efa. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZNJX2045222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a13446f524f21997dea9ab060dd0346207e1255d0df67c153854c5d36338545. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZNJX2045223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b200a7bb875953982861850aaaeec1d98701ec704dd3105d431057619a15cd. 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/QZNJX2045224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a9d0a96488924d953815358d55aa336d4c5112bb6304dce1c40a767da398ce. 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/QZNJX2045225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde96f62a558935305fde848b2bd638f72d2c633af04de0b0b70ac965c194c301. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/QZNJX2045226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0de8b8c0d4664b57143bc2c53b427795539b4ad403e6ae11c9629f7b730a0157. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/QZNJX2045227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe863ce745965208ca42c93ad369ea9157b3f09d514297be8bdfb7f6cc8762f74. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:02:35Z), 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/QZNJX2045228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c310962bb167dedf1c3bbb66e54e329552e08291cab82ff6bce14c44cb16fd5. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/QZNJX2045229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaed9d40b93c077811c76c62fbcd8bba6bcc226923c1b6102323972f1e73219d7. 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/QZNJX2045231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78de908b7638bc74683288ccf9687843cd284056e75793dba86459477b5aab7c. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/QZNJX2045232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4392bc199513d97c9a1ba61aff1babd140f3b0d3318b566f0a2d9e7a6ecc8e23. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:19:28Z), 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/QZNJX2045236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ee91017906155373d4fa59fdf9c72e6aa82be5fd53f5a0e2b98681deeea89b. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QZNJX2045239.
Era Eu Era Meu Mano, Era Meu Mano Mais Eu, Vol. 2 (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dfcb81a83d1071eb58c06b937ef64e1f4549ac8465d08615bf44fb3b3ca497f. 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/QZNJZ2105573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa45f765ce1cfb2af0229a1a1e4b7fc5ba1b3426a1bdcee3205863aa9eadefc8e. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QZNJZ2105574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe84abadb864a941188717a7dea81fdcbbce066ddc25d83ec5ad9c85613bf9a11. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/QZNJZ2105575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5444e3dd88cef4a3f22a91e32e14cd707992b396eab63efcee99525091f58e8. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZNJZ2105576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1032e60f323ba4800fca76488e7da30c7e5eeec00f1d581caf4f62babac1a89. 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/QZNJZ2105577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a25e7d8bb0bbd3488b8429e2086cfa1bb91d464c5d5b659babdf971b75376df. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/QZNJZ2105578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe368a4f0f8aa4bc92501a4bcb98412ce676f9df6bf16d3a716cc696748c7edbc. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZNJZ2105580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe274c40997bb292a02ba13f02989e1a757d94cb8557f7009e75cb83d7e30632. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/QZTPX2340417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7bbd0417f1323fb20de91cfe87649e7ec5dea2c73209d6935c0d553027ceb19. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZTPX2340418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea5371539ca9216150f54211799117976493a0eb774d19b1fdd16aee7deb0125. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZTPX2340419.
Ai Ai Ai Doutor / Meu Atabaque / Nega de Lei
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20e4385344769cd7ed74e78d6e38885dff37b797fac98697c7b80a062ffa54bd. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZTPX2340420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75210dd40600a82ac110f86359007a8cb217434faba8b81f826d74744fcfa6eb. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/QZTPX2340421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b03bf3210ecaab60e07575dfbaa04b7b1c1b757af96e9ebeb5928f93bbc75e6. 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/QZTPX2340422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x833e657cb5c5b777d01326ac1870cb8cb76b4a14f863541c92a8ed9dd932cd78. 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/QZTPX2340424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d7c3cc8ca28c92e3ab534ced41ebc5d5c1d82daeede2be56b7be7937b7d2454. 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/QZTPX2340425.