thumb|Renato Borghetti(Photo: Wilson Dias/ABr, Brasília, 2006) Renato Borghetti (born July 23, 1963) is a Brazilian folk musician and composer. Career Borghetti was born in Porto Alegre. He works i
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 0x86a83f6f896178cec304788517943b2068f118b3e14c62c07fb93fc9936a45eb. 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/d035433c-c869-4f8d-a746-64304b4cdcf6.json and https://artists.proofprofile.net/proofs/artist/d035433c-c869-4f8d-a746-64304b4cdcf6.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 0xbaa599cf749221ef355aaad133393c12457aaa65907d311b3b76aada8c4cd040. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/BRRGE8600039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb733926871de120673cb80e570e82ff91ca05839512b3ca032d00e02f9a2d5. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRRGE8600046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dad568d4edd0204e8d694afd1b724b7a62c8b4fae80ad2a12f2a5a2e018f1d9. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRRGE8600040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf28a819c73a12bf0e4f3a330588842638f9bb86b30a710d67eb5004d319ed2a4. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/BRRGE8600050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f221c48a83de55b049709f0e2175e4501b3bf2248630908359b10cc711933a3. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/BRRGE8600043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1101e29454f0d0c542e439b9747df32ec07868ae34c267e2aed530c6f1cf6726. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T16:46:31Z), 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/BRBMG8700231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fc8754d1884db14503c3ecfca65c1af5a09f01908e05cb9439faa36220d44e1. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:48:42Z), 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/BRAPI0400390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd55c338539e25b87072be55a9e4d8ca9f2d403b43d128570c578b6ddcb7c2bb2. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:35:45Z), 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/SEWDL0407501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecc23ca15e75e500f9dc5475754ec1c5f2d08ff5e1fa3080e036dbdd6bbf8846. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/GBHQC0553487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe76e4f3d3d46efeeae7b3abfbc180249e30ab69b89c94f6916c201ffd177da39. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/GBHQC0553488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0a69915fa1820b3eda42063b27527929b9cfc8a0c11588a697055e0439ef46. 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/BRRGE8600042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d4e178e639d2e30d9c7430bafc7af21f93a609648712adda863ff1719698613. 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/BRRGE9501154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d9eae8e03392fa8ac298d6acc9f4f79f85b63653f7bfb6ebc2c67bef4f8a37. 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/BRRGE0100074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18aa18e1ca86848706b11e915d1c5967c503188c8f9456e2265db10a3a96aa7. 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/BRSGL8700028.
Folclore: Prenda Minha / Hino ao Rio Grande / Chula / Balaio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc04c3c3ed5ac04ea0c86b57394066eb17453980dffd770e4e9608051cb96f32b. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRNH91700028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e0760fcec36b4e98724756961d2638b8de85313c6d76fb359308d7a8cbcbb5. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/BRNH91700031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ea0528f187ba6810946c36443e5d2dcb8fe803fa42d02a94f1885dca0538bdb. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/BRNH91700026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18698d17ffffe3f16623366492775c5d7eeb91d801fce0a82513c473fca3154f. 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/BRNH91700024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0f27529dfb4b5f16aac381b37a69b871d4d35402fc533c9cb12a70e6a64cfa5. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BRNH91700023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d8893cd9dd6183fcb9b5d10ee06fa0b357e289ba55cc348a35098285d323c51. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/BRNH91700034.
Rancheiras: Rancheirinha / Terça-Feira / Rancheira para Don Carlos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c75d11cf7ca104a9e564ea9f4781023e74e22577ab77a0221c3e4172f8aa126. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/BRNH91700022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb3f2632d0f692461accc89dfb99a76c4898d40d1d50474c60f1b4add59b3328. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:04:43Z), 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/BRNH91700032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ea5bda82f225835b1c716d3912775916f5421c80c9c71d954a680c280933a1. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/BRNH91700027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x266e2c7c72a2f7e6c4247dd559e526313e83b5493fb6c07a608f624cde03d7e8. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/UKU6H1949982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ddd3618ed0ce580b1cf610144d12779fffa794c3b01f14f81a6734b6e58de34. 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/UKU6H1949983.
Paixão dupla (Participação especial de Gino & Geno e Renato Borghetti)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0151d256b8196360d3c465203a99d8ebb890c111ab58d48aa009852f82849624. 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/BRWMB0300346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e7f55f438868c2f971407a80409ba69742b3b07083fd726b58c20842375a89. 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/BRUSA1700426.