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 0x27db0fe4b7a18f0ba3ec8d112d4f525a87cfd0eb091aad6b1d92f224b15260a1. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c3370d4a-fa94-41d6-8ff2-d97f540585a5.json and https://artists.proofprofile.net/proofs/artist/c3370d4a-fa94-41d6-8ff2-d97f540585a5.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 0xd1d962131c98f55f6fbd0a587e543ae77495594a9aeb09587e5f0ece70a79475. 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/BC3PG2304436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b360ebbed27c49fd1ed23c13464c642e5d79596d0e4670559419c3556571973. 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/GXD7V2355397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaea176cd4716ab04f7b62dae0d482ff773a6959b42f4a19e851f68455fb4e7a0. 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/BXI8I2400122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf76ab6f772f9abf590c17a1e0d209b855efbefe1ded950567de9c3a23efe2dd4. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXI8I2400120.
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
Bonde do Piru Sem Freio X Maquina de Fazer Sexo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d795e9d24f0e8b916d4c0dbb12cbcd87f06f6e9a5f21a642c96bb26493cd317. 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/BC3PG2401446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7771e09f92322862e0bde47aeda8f80bd12a156ed5d9017d45861556de6c1256. 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/BKBLS2400034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16052064f6f050bf964faa26b703ca424377840d16e4fbce986ea6a07946aca1. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCIH82401304.
Esse É o Dj Miltinho, Reliquia de Niterói
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5798f0a22c265e61fd64296777f2785bd701db355a906fe40913c39e62dc0ab. 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/QZNW72201747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b35525c265b9fcc54ae35279c5ec02b7650a72e656119da82376a98f91ce4f. 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/BX5EU2200073.
Cola o Bundão no Chão, Joga o Bundão no Teto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5821b8dbc042e5b124682e7d9d7e6c3488c9189b93966b760fceef3c2a833e67. 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/BX5EU2200072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x957d291d0550e3fc4413d34c522f7ae760d0b8b335326f7a4e5f3287918363a8. 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/BX0GW2100009.
Não quero mais saber do Nosso sentimento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c566a96bcaf011905277e4cefefc5ce1474f4e818388e04f72ac8f6dc1678c6. 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/QZHZ51926635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f857f97d19db9dc55a2fb47871eaf435bbdf417aa1c73220f6e6e563c45724. 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/QZN882440040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e6fc2912783750010e58aa3a5a0724924eaee58f1bb751451b16fd1be8d7ef3. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZN882409017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8854b3196dd53980dc31da9e64f5967370bca49a39ebf9dc1f215a9cf266ba22. 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/QZXLZ2307066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1167369839f57507bb682c0449fa3de8f819fead9b6557f22535f400a99e8f84. 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/QZNW72237981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c580f8b6e424430ba4b093977b327ee038dad733420d9dc2b5d780a67c243f. 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/US7VG2128407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43786e8f931db3a46277b0f638a127bddc3e1b97c78b2b7091f994d78bda116e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZNJY2432026.