thumb|A Samoan woman with is a traditional Samoan tattoo applied to women. The covers the legs from just below the knee to the upper thighs just below the buttocks, and is typically finer and more
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 0xe3841aad1bb5d26f0d4b7e3be7787f2375ee9c4e3bde3c188e6eaa775aa90345. 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/2e0cf58f-9c8b-4eef-ac07-88d978301149.json and https://artists.proofprofile.net/proofs/artist/2e0cf58f-9c8b-4eef-ac07-88d978301149.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 0x442d3491a8a3d4a0332bc11df711a723ab9d0237a934787d5305e421425c889a. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T08:04:39Z), 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/QZEQU1910423.
O Interior É o Meu Lugar (feat. Avião do Povão)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a0ea51b59370fb86ca8e43ba753588ffb6568822de05154ed7b3a6c79391eb3. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:53:38Z), 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/QZEQU1910425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69bade58b783dfc6882a8d56426d7777e6f219b8093476b539340d2b0b830069. 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/QZEQU1910433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2995eb293859ac72d2da020643affdd7e6b96b772c406e133ca321c782685637. 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/QZEQU1910426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb65b9a99f599193963913786a997065b711dc43a03ca34fc6f1ca612ef1f152. 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/QZEQU1910427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ad95431d776c5dd76b3c13ee16a243f7624421bfae08a81fb7205a7f7bd0f1. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T07:06:49Z), 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/QZEQU1910435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6019a50a32570a7cd439dec8b77f8047148d316261652debd58f1876e0d7246b. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:54:53Z), 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/QZEQU1910438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x125fae5ba1df8faa0a93ac898dd6d5edfa2204eec7345b9052d9e14e557d90e1. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T09:49:59Z), 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/QZEQU1910430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f3bc58be76bed7e9ea8ee6067bb5db03aff41bb1606f6a0fef3060fbf23883. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:02:09Z), 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/QZEQU1908511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a964bf1b467a6d30e19059001ee1514658b931a43f68009076237611333d428. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:27:40Z), 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/QZEQU1908516.
Sim ou Com Certeza? A Nova Voz Romântica do Brasil!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cdff2c0c0b11c3e776adddf853f9427808a95fa5503878ed53ecb70e2f32e34. 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/QZEQU2035482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ffa83bfe49818ffdabea8b5988a6965558d608ae02d633781407540383d38e5. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/BX9K42100024.
O Golpe É o Mesmo (feat. Filipe Escandurras)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f03c82b7d83b42670110c5ff44ef784e535434de870f29ea1072dad0953b0cb. 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/QZEQU2112222.
Coração de Isca (feat. Bruno & Marrone) [Funk Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68f3536e6538a956399ffc93ec0b0a01c253ed17814225c2c631d7349f7a97aa. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/BRUM72101574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a5645c33b0b205c98d22baca9948a19f2ef7a9b5a223503fe157784223763d7. 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/BRUM72200697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa481fca7f65b0d4ac949e62dd2c1bba3a677586881415ae9d98f5d65dd772982. 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/QZNJZ2532979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeff5b0ccf560a880c374cb9407657d44b40d8ce516764390c61d112916462db. 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/QZNJZ2532981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d2a64f613ff19b0721b607cf8b517cbc3fc4ac3c17d4e4e6e538b08fe76a25. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/BRUM72101685.