Primitive Reason are an alternative cross-over rock band based in Lisbon, Portugal, with Guillermo de Llera (voice, percussion, didgeridoo), Abel Beja (guitar), Luís Pereira (bass), Tino Dias (drums),
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 0xbc2d29d4a106e8b1ce2503198efdfeceef1116f47fc3a4ca790064fbc079b69f. Chain 2 (Bitcoin): anchored in block 953724 (2026-06-15T01:43:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8deba8b0-38be-406a-b776-d2e325a77e6a.json and https://artists.proofprofile.net/proofs/artist/8deba8b0-38be-406a-b776-d2e325a77e6a.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 0x5dba488d65b86c609ec853fa3d2315a90f840cc68a6ccde16f16b15d2639799e. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/QM4TX2192267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20099aea5e34d0d3d6616167afa0d367eed5556e13d4a56c3c9047fe7410364a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QM4TX2192270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3deb4cccc14ef5c84081a0c0d5381cb6c80988aac8d9671a30c5afb1da6a7ca9. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/PT2CF1400024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb194cf3109ffc6bab63c556950c4fba905a002d357a519ac408c0d2b9a5eec3. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/PT2CF1500116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f5fb012403a058c27fc3ffb92d9ce49f0714061bed1ca63f06d0ad9ed73d7fa. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:46:43Z), 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/DEZ651318021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4e848671d799df92b9b12797f0bf119cfa290d3a0e338acd358bf75d53f1c4c. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:06:50Z), 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/DEZ651318022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56e8754f1468b5ed08845bfc475fd1a77f764cc1cc601f72ed9e95f8a72e550d. 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/DEZ651318025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefb4f73b39512fc27cbd183f60b8c702283d405dec549d3dde2fb70eca045e0e. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/DEZ651318026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4254ec6843d49db543d6abbc07a18bc209515348a9fc8fd97a75b304a4ea61f2. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/PT2CF1400002.
Walk Inside (Remastered 2015) [The Singles Collection]