Solid Space was a short-lived British minimal wave band, formed in 1980 by Matthew 'Maf' Vosburgh and Dan Goldstein. Vosburgh and Goldstein, who met at age 11, were previously involved in 1970s new wa
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 0x00e29f10b7794f39d49c2f7362207b33c2f47919d9b78edcb4a376c5ca96c70f. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a9f98a2a-4108-490a-a39d-8d7f6452d7c9.json and https://artists.proofprofile.net/proofs/artist/a9f98a2a-4108-490a-a39d-8d7f6452d7c9.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 0x8f732bd9e473ebf48f424f867e3d48c346d2e2081f1bd0eb2dd0a6006f277570. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/USA2P1701367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fdffd29aa0209dc7992f91e2bcc394716442863c1e7660ad3201f5896a0c6d4. 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/USA2P1701369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c82d6c2fd05c4ad919365253afe4655c18bf53686ad53933507cf363b6500d3. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:23:57Z), 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/USA2P1701371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeabd8437e30be93738948f6655ec346a8fe7031a80c4ccc0f1177ff1e80196b. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USA2P1701372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97bc56820329d14476cb9b8d1fce1696627591e55a9eac59a8c5ceaa7ba15155. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/USA2P1701373.