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 0xc067a55995b56f3c1fa7de708766e8a426e553e206cb04dcae6485277bfd6b4c. 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/bb11b8b6-eebd-4b4d-8a4d-7f94ef251dff.json and https://artists.proofprofile.net/proofs/artist/bb11b8b6-eebd-4b4d-8a4d-7f94ef251dff.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 0x9d635a3821cd31be5fc5c2d41127388704ed5ad4e8d0ecbe0d021c13a87c245b. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZEQU2133721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5efa1024fb2108629c85b73c7e220b8dd08c7f84a236790b169e08271ffdc8e4. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/QZEQU2133724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5ad236fed809a89ec0fd88809c459d623c45c87d29a06ae5deff940d17338e3. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/QZEQU2143697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8887347c19f1df393d6480980da62d9ea70284c85a086ca43d82fce06c9d80b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZEQU2143698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e1460d6f840e3d9f8f35792bd0ee26e6515972f1950d0441c80be063d581c2. 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/QZEQU2143699.
Descendo e 24 Horas Fudendo (feat. Mc Dablio)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f0ae132394bc8d3c89ff62532709b03a862883861009a8e4b1e8899ae6eb2d6. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/QZEQU2143700.
Foi um Tal de Soca Soca (feat. Mc Pânico)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd193b3401bf38e3d3624b304dc976680caa37ec8fbd5dd306301ff62c569ecad. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/QZEQU2150931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0932255ddbe4fc1a3cfbdf00614b5b26986aa58fa8ee997031194e0765e43d7e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZEQU2150932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa62bfd44c3faecc3686f36f7864fb8434137a98ceabde55ae8ade35dca943907. 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/QZEQU2150933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e20b62669e647d3544b5a403a735bf6d0df152326bc71cebd7e433d00026c69. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/QZEQU2150934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf54a79c8e2b88cc1aaaa8c7a4804b5de017a5fb3949986d6b1db842588cba57. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:02:50Z), 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/QZEQU2212602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22f1807a6f037355553e51db0cbd55623dbbf48273bbb3a5af13b24ee8fc68f5. 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/QZEQU2212603.
Vem Com a Xerekinha Gostosa (feat. MC Toguro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead3452d66c849ed9ae0bb4125f35e22b434738b53171951e4ec4deb06213cd5. 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/QZEQU2217577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7bf36e10ccc16c28a4aaf869475cbfd9c346cdcc1918be6742aead3f75c267d. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/QZEQU2257667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53d6aab3dacabcefc4933296bbf3a6526c25468e62ce4eaf04c0453269e1eb7e. 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/QZEQU2257668.
Calma Vai Devagar Relaxa Que Eu Vou Botar