Gold is a chemical element; its chemical symbol is Au (from Latin ) and atomic number 79. In its pure form, it is a bright-metallic-yellow, dense, soft, malleable, and ductile metal. Chemically, gold
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 0x2b6193c4c5a719e14389891b19b9f2c216a73857a1bbf71c90e9541723be3012. 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/2cb80ead-7602-4fe9-b99d-44893d486b75.json and https://artists.proofprofile.net/proofs/artist/2cb80ead-7602-4fe9-b99d-44893d486b75.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 0x8d157bc6587790df2726a136434d2b0ad670e60db1168aa139b00a97cd7c4c09. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JMA271200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc4330da81e51e5c0eec730c1fb67ede9141406f0ddb9944d5a61ba7a52e9f88. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JMA271200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x997d132dd0b5e0c8cc3096fe57d5b2f5130197cceb3108ce042aa9c39340abac. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JMA271200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64b0d1f5b5fb3d6bfd7366e70d76a6aa0ac297604497b92a31c7fa0054e453d5. 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/JMA271200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50146745d68124823ec53fd5cad18225e85178f05cae832f58c56d4f4b8af586. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JMA271200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21528b2fc4a16d7b63dbe5d2e81c2daafae69f8f8f57d16ce39f2c51c104522e. 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/JMA271200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62943efdb4b688e8b7852e23159b0e0f238a47fe0f4d7e72e3dea68596c344c0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JMA271200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb4aae35b888e622632c32494995b7a8f3e9a630fa2836bf828b549c2c732d1. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JMA271200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x819c4d959f5c8f15585daf76a8d28d53fa8204741793319ae605a164c8c6cc52. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JMA271200009.