Augmented 7th is the debut album of the London-based musician and DJ, Ash Walker. It was released in 2015 through the independent record label Deep Heads. The album features a diverse range of genres,
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 0xcd155bdcb794a775c36b8883bdd9ef4e9cdc63f7e897b298760c29698c3a2794. 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/c2413c9a-42fd-4ea7-83ac-9b8dfa5d9c02.json and https://artists.proofprofile.net/proofs/artist/c2413c9a-42fd-4ea7-83ac-9b8dfa5d9c02.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 0xd2106c30b9c8310f26d7162185e212c883b360ac1e2835b25b91a720364cf4b5. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/GBSMU9348434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d2053fe62e826cd09c05e80d4a10ee0148de805c2953959c5d448a8e73680d. 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/GBSMU9348439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x994584703db7e2a05547e8c615954445712f8bb0a66a55992eb35bb20fafd3b5. Chain 2 (Bitcoin): anchored in block 958676 (2026-07-19T05:43:13Z), 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/GBSMU9348440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x453dea288546bfbd2e37cf40e631b9230b4873def1ef4a5ec3cdbc659e01a13d. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T15:09:34Z), 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/GBSMU9348441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd813a5013c91bdb4e7516e5ce361ca446aa0c3a1b509cd20fb8076fb5c91602d. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/GBSMU9348546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29c80eade553531bcdecc123f0635aa91560f6901ab1e61c48295214670539d1. 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/GBSMU8196515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eacf04eb74aa1d69bf29eb694cbc492308eee638ec62a9f74641bb993e062b0. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/GBSMU9348660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb36da7d8af944c3ba29e007632c6a27a398c57866d9d6945306d063c6ebd057. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/GBSMU9348661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f2a4e568298b9fee74e3cb5a3069dc25f239e9199cc22fbd5c28cd339acfa6. 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/GBSMU8196735.