1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xc11314a31278747a91157a5011801887e5e77819c9d5784772e71de79ca36615. Chain 2 (Bitcoin): anchored in block 953660 (2026-06-14T17:20:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/52a0e769-83a5-4e7c-b19c-507aec5d0b6b.json and https://artists.proofprofile.net/proofs/artist/52a0e769-83a5-4e7c-b19c-507aec5d0b6b.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 → block OTSBitcoinBlock must exist at that height 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 0x6623dbaab49a17e32c16684c7bb1d2848b7c08b189a473d5debe1372e9cbb61b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US7VG1858727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ee877e6bf77332a0f1b2569f3d963d20df0e600925aa9f01bc8198d85fa586f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/US7VG1858729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaba55d802a785d48c2273d7ed987a64926a525dfcb3af69a33782e5f3300b89. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/US7VG1858732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2511563ebb60aedf59ca70d44af9dc2f61e69ed70c5ce4115fc620b4bb0bbb. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US7VG1858733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb23ad37dd0a7d0fc9f40466ea8b4597593491c94fee6ebe8b66576217ef9c9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZNJY2018662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b5186593e1e7ee6a61c108ea44207b07b5f88cbf6758597e2ece699650dcf89. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BRJS61200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57df4298a32672817c141566e0216d497923a1a0e26e7fe9d44deab97cdb1fd9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZGLS1928011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ca9c0a8b1a81db0e17d74cd068db128f1a4b39f3ffdef59ed964842d8f987f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZGLS1928012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x333345a64a721df9a2215756966a159a17b373c5d4ecaea10c97a4af53abe6cd. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/QZGLS1928016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8205fe142f7765a284b6c49f2e91657a2ede6fc6002d833d47fff64f158f1f23. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZGLS1928021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0631be9dcbe270d1216200e4e50645354fd104d0960e2fcc98f0e5723e90e15c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZHZ31939842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63b30d2dc0666f1033e79c193fc8dd3123dd9174d5c3775d33927b2c9003f943. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZHZ41940182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f4325904d5d9820106062410287b6f45454b7a7ebc3db0e2f0f8a271386b9f9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZHZ41940184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x149767a0793e1e3f6139060c94d57aab348b0c6d506c12a503bee07cc9bb79c1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BRVLX1500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82cfdb25c13ccce61fcb75ebcb5b3c49614cbb33d59e74c1c934e42490494f2a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BRVLX1500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d110d753965d9f4bc460058da8b8e44be02d6d75163808589a1fb314f4b523c. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BRVLX1500004.
O Que Eu Nunca VI (feat. Serafim Freitas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80dd3a31740ee2a859431b363e3101721aac30ecbded0940aa32b0f71e70e380. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BRVLX1500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf86dacf1dab1edf2607e8e2f8e10dbf025a68c07fc46ec2136f9790cfa44643c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BRVLX1500006.
O Milagre da Visão (feat. André Rodrigues)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd50ee67f6f04b9911fbe0907d1720ecd4883fcbf225e9cad85666e246248ab54. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BRVLX1500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3483480d82078e4f2fc117bffc9dc75b80ec6736ebe329fb9873bdfc11dbe8bc. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BRVLX1500009.
Dono do Meu Coração (feat. João Alexandre)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6071d17a67554a9059658310ad505e06048fa974449a10120adc04344ef507e. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/BRVLX1500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6305c8f11feb3b864b705954245b339bb24fb762692b64a4b6d817c4ae84127d. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/BRVLX1500013.
Eterna Canção, ao Vivo no Teatro Sesi - GO
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12106bf8ec9f764b71c15d0e5c0cacd7e92c62c288344c6effb79a0a6a987dc0. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BRVLX1800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee1f4b524b83fce7833dd919ee9919d8adf2261cc3ffd7cf9898904016c2fad8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BRVLX1800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ba84a13b2a5470eaa968a6e6361c188cf1295995f923ab107b16b5c40f84ede. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BRVLX1800013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc8e0b826caf695b614ce7ffd86afdb2158bc21583dba29d542397c7835291e0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BKTO12300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb63171600272bdc5b6037e73ea321deaea3ed133b5cdad1bc670168b024dc57. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BKTO12300011.