Carlos Pérez or Perez may refer to: Sportspeople Association football Carlos Pérez Salvachúa (born 1973), Spanish football manager Carlos Pérez (footballer, born 1971) (1971–2006), Spanish football m
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 0xdc6866425e028e20aa7f1e41539701c20d75407120449ede365e4f12c6be31fd. 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/fcacba3c-a90b-4f9e-a41a-931ec300bafd.json and https://artists.proofprofile.net/proofs/artist/fcacba3c-a90b-4f9e-a41a-931ec300bafd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Medley: Fiel a Tus Ideas / Soltero / Poco a Poco
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 0xa07c05df6a11b12356a67cca3c961e7258c0e39bdb43070cf9a7fa941aa3200a. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/TCAGE2257557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2309572c73ab9e01c8dcd0b62bf64d165f1607c18e8a709af789c2a72644d3c. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/TCAGE2257563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb804be611ebc19df47b3370a4d64d041fcf4ba58a2a45c8ce00238a3d89be91. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCAGE2257576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1331645d8fbadf42ceaafd475bfc34cff124243dd062d8a0280b3b98e734500. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/TCAGE2257585.
Las Manos Quietas (25th Aniversario) (Juan Martinez Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca21a0e3d77e4043145e8676de18e360dc10e932af266fb53fca1b0f15a3b0e0. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/ES5770604255.
Poco a Poco (Edicion Especial 30 Aniversario Remix 2014)
High Energy Forever (Extended Power Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f29903eb99e38f225431e14b2504c1ea299512f0ba0254411c8e9db4b5a875d. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/USU6V9990918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4915575d008e1b499414c14e7e9e4a54c749df5c8f5f35a3ec61411a92dea108. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/DKBDB1002801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70743d30c11aa329ec528adf48ce2952ac365e42b633335afe3740d77b8ba908. 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/DKBDB1002805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6849701e9f1935c346ea239731dd68e1fb1bf3247740d647a1cf557b91b1f92. 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/GBJUT0800478.