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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5520985a6ebe9796520083789d9c64861d3f4890d5ee1d0fb731cf44eaa7a520. 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/bc7fa7a0-5e77-46c2-91db-a87459a7d512.json and https://artists.proofprofile.net/proofs/artist/bc7fa7a0-5e77-46c2-91db-a87459a7d512.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1ad79265c7bde9f97f0b7bcefafcf8855dd400a30f9e401071ff5a76abe2ffe. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BKCMX2300152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d986b106e9a90d1a6409a31c4c4213ef9eb098e8cc70da22cc37d741cc1774f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BKCMX2300115.
Toma Cacete Buceta X Aproveita Vem por Cima
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f791a0626f37c4f38f1c1bc104eef778e21ab250f2bbb05520d77b5ded52274. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BKCMX2400264.
Vou Ter Que Desabafar Porque Minha Vida Ta Foda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd74a58254b714376bdc56103868713ef90f4c9838a035d930fc3382985896e29. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:05:46Z), 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/BKCMX2400190.
Desce Com Forca Gostosa Batendo a Bunda no Chao
19 Pode 16 Pode Tambem X Eu Sento Mesmo Eu Gosto Muito
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x267eae40c77ae53a6aa2993c6ed7caed097ccdd56738d4a6401f0ca7731fb8ec. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BKCMX2400191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb49f2bbd4a50a82b5a1879f4df29cae816e206e46d6ecd7d5694df4295da3831. 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/BKCMX2400208.
Tudo no Bucetao Dela X Ela Toma Socadao Direto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa7086b5a601a667b4bc5f9bffebb5543d046a881eecbfd2ba08fe55f2a2a04. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BKCMX2400123.
MTG - Vem no 4-4-2 na Formação de Carnaval
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec9947266724bf976d7d07ccfe109a30fd23f90fb55df2f23ff273b585e6f41a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BKCMX2400093.
Mtg - Taca a Bundinha pra Trás e Chacoalha
Mtg - Ta um Tal de Fode ou Não Fode X Trepa no Pau Sua Puta
Mtg - Tu Vem Vindo Com a Xereca Que Eu Te Empurro O Pirocão
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x219165db48c7ce24ef749fdeb26ce2748c3cec578daafa599da7ca742cbfaba1. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T16:23:53Z), 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/BKCMX2300089.
Minha Vida Virou Puteiro Como É Bom Ter Vida de Solteiro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x806e9ee82359eece1231b96d83eac9b86e0e7e8d535f24485def65562d88356a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BKCMX2500087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba757fad7ea3684fcaab17e4db32959a3a219dfaca8b8f71141d91e2934bad84. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZMZ92524500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9618d164feaefdfcc890563bff9600d3914c5217b0c64db297c282fc2f49563. 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/QZTRX2525123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf30245097546cbfd7e928d3651c1508cf2aa9ff9e74699de3a422e91a00b9e87. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BKCMX2400547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcfba59c21700fd333cea71379819ae5fafbbaff76549fc52431c3dc2d6b9379. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZGLM2591145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf816bcc12db5e2bb036e153f6aa0cf8fc45a7a3b54f2a57cf5dabb4c7ecbbb1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BKCMX2400507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x639d77be82111b72cfa0e63b1c5ec3ca99b480553d3b06145368fb6907f4b398. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BKCMX2400551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a6c4329133074d2cd3bcaacb29e14ac9964b09fd7da546745ba99ddb7d88cff. 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/QZZEB2416314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99630875c6b69f2471107cc572d0fe5bdd425ee69a066dd8b5d636af125e698d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BKCMX2400502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x637259041aefe82fa0bdbeffac0620d40f2d45981127f0c79094cfdd7efbb73d. 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/BKCMX2400442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f6ddb208d5f58de591629c2ab4a6e4a9dedc51914d700e6ebb96825bbd465df. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZNJW2435108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d739352386f77de34bb14b891cb68f048bdb0280aa326af12e293d8796c64b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZNJW2435110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d1c76819c2a4252eb1e9f065d7a06507a1f5d2ca192507ef5001f52124300c4. 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/BKCMX2400039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7653d913a0641ed5a95bfee8407b1775cac6029cfba7a319d08c59a4adbd3cbe. 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/BKCMX2400251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e7f1db0b1248ddb7ef480e3410db31b6ca74c426df2a5a6e75e70b4799bb9a4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BX4IU2302621.