Diego Enrique Bustamante Gutiérrez (born 21 February 1983) is a Peruvian footballer who plays as a midfielder. He currently plays for León de Huánuco in the Peruvian First Division. Honours Club Uni
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 0x1db2bbe29bfc207e69c7b1db28a2fbc6771dbd2e74edd58e2fdf6f3750e7f978. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/db25b9a9-f6f6-4ecb-8851-559348c51c5d.json and https://artists.proofprofile.net/proofs/artist/db25b9a9-f6f6-4ecb-8851-559348c51c5d.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 0x2ca6d42d396b0b6e9f6aa533400c631548c481dbdfa3c6f768ddc2b0a6bb4523. 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/GBKQU2436885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadba0307ee8637d84dde3f4d6834e6d791f4f29ec4f7a91a26589a5123929baf. 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/GBKQU2438819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e7be41ea5e084f9245b8d94288e8804450471cdaa3bb8044357dc3997a5b35. 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/CA5KR2419478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa4dca932db7c169b7f2a4811672214032460884e84e301dc4ae01e0882383b1. 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/CA5KR2419479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3d2b600565a9d84307b0a78ba741890e60fb15bdd9ebe77da87a09e62080cdd. 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/CA5KR2403965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b7ca328fe1138364ab43ddb17c89ec16710d8378d1168dc7f2bd6527dd27094. 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/CA5KR2399152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c8a6d6f5cf86793274f09a78c966df846f5faedc545d70105ff9da22e90e85. 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/DEH742321924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20477c84184695c8f15ea4b9b6f6427d3f9bab38f126f72b4d79ef2ade331a2f. 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/DEH742321926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb24f11daed42761e9bbddff7714819272c220e330537c40a175fbd72918407df. 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/GBKQU2381443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1be2dcb3166c92818b3a9e9b86f5fbf7da0f098ee4e791d84fda550824eecf7. 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/GBKQU2381445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d0759188936646200260d3c533ad4b26d4c4458f2297a042449021659e483cc. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEH742301173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49bf248834d42c0d4a20b97e3a897877787f636566aed067a631f99f8a93e674. 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/ES98I2100517.