André Fonseca Amaro (born 13 August 2002) is a Portuguese footballer who plays as a centre-back for Al-Rayyan in the Qatar Stars League. A physically dominant and tactically intelligent defender, Amar
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 0x4cfa1745a681371742f9d3676dba15d9bfe7bb59246d978dbd5bc66610e05828. 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/2618ba78-bc20-4c89-a731-8cd8465de00b.json and https://artists.proofprofile.net/proofs/artist/2618ba78-bc20-4c89-a731-8cd8465de00b.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 0xc615e786806c2751b7d217c2c220b475c7b69e7cdc38b3d752b1d85b0e462d53. Chain 2 (Bitcoin): anchored in block 958819 (2026-07-20T06:43:27Z), 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/PTBM12000046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67d13e4e6c7be8f95a2e43328236ed08565c8c6e4768533d39cd98975437c498. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/PTBM12000104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f3821f304a70dc69552a69116ddf8ba76d92085bc888c722f034bdde51921d. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T02:46:36Z), 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/PTBM12300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93bbdf406e019c320598f7732cb6da7f915d0dd113a593c0725b8cde3a7960ed. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/PTBM12400057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a6e9dde9ca8500d7143f00f5551dd34a08987b6e59f173a10c4e7eacbabfa30. 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/PTBM11900182.