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 0x25b61c3239b937c5c69687e26ea7d4ea044595773def16d68151ca67176b6e6f. Chain 2 (Bitcoin): anchored in block 953765 (2026-06-15T08:55:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bc74fd4b-8399-42ee-80bc-fb63f0491710.json and https://artists.proofprofile.net/proofs/artist/bc74fd4b-8399-42ee-80bc-fb63f0491710.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
A Amizade (feat. Martinho Da Vila, Tunico da Vila, Maria Rita, Péricles, Rappin' Hood, Dudu Nobre, Teresa Cristina, Xande de Pilares, Ana Clara, Adriano Ribeiro, Delacruz, Pretinho da Serrinh
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 0xf64a71644faa2b3efb18ccb395d13bec108c06062c4afacab498eae4a87bff1f. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/BRLKP1900025.
Pelo Telefone (feat. Tunico da Vila) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0833329bc61127b6ae208f11bb1e49b00b9d570223697822a28582b105c086d1. 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/BRLKP1900027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba5a1e33cc4945d4091c9e14ad7d60d311723a20e24a8c8c5f7ac86e3916cd5. 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/BRLKP1900026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87add2085ab6cdc042d614f6fd6d7f9442af42fa8ba2185071cde83e135df235. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/BRLKP1900046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77cc73b0e67a2542b2f63ec1cbc690277ef03f540150cf577b76a7d5e0a144f6. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/BRLKP1900045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8950a950e116a8c4a4148ce5d9ffe2809c9e6251568471c5d0380af127b666a7. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/BRLKP1900029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd050ddba4223d13ad37ad771e33db2c2225e9ecaf636e46d020188ebc53dc812. 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/BRLKP1900030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c315f036551df3debd4185562ccec3e66c3dc2f949e07e3f10dc959a1fd1a47. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/BRLKP1900041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7744574bc1472e64117adaa95b25fdd1821ae06c591426a7a340ec39d3f55c3. 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/BRLKP1900040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a5da9240f7417d6847753d49cf0f01599ceca52ad227033bb58b6ea3d88c67. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/BRLKP1900037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf1d55da63d7666e21fe9cea4c5c4bd3f0d6d428187cc4f164a0e076799a9c9. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/BRLKP1900036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa78f429d8108c1f7410a647336468f174cfc5cbfbf9f3812d8fc3649804e5080. 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/BRLKP1900023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb523edcb2669972945093edbf47d163837e652daae2931d87033642ec6557b7. 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/BRLKP1900028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe46b582dbbfc7248485335a55647e95ba00a2a0a2538696ba1db1424e895b8a. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/BRLKP1900044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8bf145a47cc0a0473a1379a9fdcd8a64923a9d487de3c13b6de1c4925aca573. 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/BRLKP1900042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dc85de754c002cdb46b51184d82b0f85044b3b6b7c9619bed8ebc9f982daad2. 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/BRLKP1900043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22b519036d343a35c27f5a06ff333cf72fb3ffb3e7fb205d4164a0d960009360. 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/BRLKP1900035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd99b8de346dfce57bbc33dfcc4e3b0aa6487663d54731537b481beb8ac5ad5e4. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/BRLKP1900039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21a65dd22e5e894112b535ad2640bc763268317986ba53077b613ff0c28f1cf8. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/BRLKP1900038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34326285fd916e6a9ef5cb3420e2f6dd417aa8bf65b8d017607a3a475850755e. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/BRLKP1900031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7243b2367c11e071390358347372ea97a74998c4f999a4c40e136a10653b9b1d. 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/BRLKP1900032.
O Show Tem que Continuar (feat. Martinho Da Vila, Tunico da Vila, Maria Rita, Péricles, Rappin' Hood, Dudu Nobre, Teresa Cristina, Xande de Pilares, Ana Clara, Adriano Ribeiro, Delacruz, Pret
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa33ab588470bc906a0191c72b676e6e9d23cb7e4896cb2cfc0af56d9ffc32545. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/BRLKP1900047.