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 0xc1273f49c3c01d142e855838386853d7be06b7ea656f14dcbca051953ff6d1c2. 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/e2586943-1002-425f-a984-a90804cffd92.json and https://artists.proofprofile.net/proofs/artist/e2586943-1002-425f-a984-a90804cffd92.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
MCs JL & LEON = ESSE TEMPO TA PEDINDO TBT NA MINHA CAMA
DANONE VOU TE APRESENTAR MINHA GLOCK DE 30 TIRO
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 0x5897c6aae4e1df9c512fef7706fdd97984ea1ef50cfbc9e8d968cd1e51abba68. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZS632187612 — a six-check JSON result.
MCS GW E RD -- VAI TOMAR CATUCADA vs PISEIRO (Extended)
SARRA NOS MENOR QUE TA DE GLOCK NA CINTURA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc125908eacb34be41fd6cd0975096715ec2a76cb096c305e3dec1f53399d27cd. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXIV82259618 — a six-check JSON result.
TA PREPARADA PRA SER DEVORADA PELO GORILA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf63096de5042135fc23826d646a1e80672fd7bfa55211cefc94c7ae7d52553c1. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXIV82337378 — a six-check JSON result.
GTA 5 ESTRELAS vs TAMBOR HASSAN (versão RJ)
TU VAI SENTAR NA MINHA CABEÇA vs NA BEIRA DA PRAIA
BEAT MODINHA vs TIPO HOLLYWOOD vs GLOCK NA ESQUERDA DIREITA A BERETA
O QUE QUE TU FEZ, FOI MACUMBA OU FEITIÇO
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b64054b27170f648fdcd0ced46aac5feb13adfed3fc925f9ab99c37fba4242. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXIV82467020 — a six-check JSON result.
ELA FODE NA 17 vs 300 POR HORA vs BEAT MODINHA
10 MINUTINHOS -- MAGIA DO HU -- ORQUESTRA DE COMUNIDADE
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a7896095373fd8aab9c3f915a4e86f1f6e7d2b7350340aff483182fa60f8b4f. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXIV82411543 — a six-check JSON result.
TROPA DO MAIS NOVO VAI COMER TUA X0T4 RINDO
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8211241b28fd5ddd7a6c9e5f3bee66d9d145ee498d769025e1c0a17d26c2bcd6. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXIV82470894 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf203b7b1a0e118134bb922b21c0af3f02de7f50dd5d293ed5779b9235e4ca7a5. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BKV1C2500020 — a six-check JSON result.
10 Minutinhos Baile da Disney na Relíquia do Coringa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x717d82e9f1463c4cc9dcbb48cdc0937e2c6f1412a755862bad6eab8745e62771. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BK35H2400011 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d0bcc89a3b3c198b7c4f554e1a2ad33967ec69dcc90debcbcc9eff0b24ca529. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX5PI2400007 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5d1b6aab56133c2c886ef28282e700a0f20bd01887ac2d9b4d492091f93060d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BC6M22502761 — a six-check JSON result.
Ela Quer os Amigos da Firma (feat. DJ GB DA DISNEY & MC GL)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8275033df647af0d5aae538d5d8a04509805f441fee9510f33740c41ae9b6e09. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BKP8K2400001 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a5e5288c9f14806761f1986e5ce897da2697b1a36550957a22a3841b965eef6. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXP5Q2400019 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c92c6077a8ec2e239d53d90a85e3c5fa37605d225fc99bc23c0a7cca89efc19. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXP5Q2400013 — a six-check JSON result.