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 0xf24e951b8e54c5a12ec936b30e2599b6a9bb1b84dce345f84b34ba14e6be81be. Chain 2 (Bitcoin): anchored in block 953819 (2026-06-15T18:31:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fb43864b-f6ec-47a2-b6b0-57cb883f7e67.json and https://artists.proofprofile.net/proofs/artist/fb43864b-f6ec-47a2-b6b0-57cb883f7e67.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Step Into The Beat: Modern Irish Dance Music
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 0x98e8b43bd89a7328933514899d9a34690ec8f151557a5575d92ad277c9a8bd4d. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/USCGJ0638349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd577a0bae4f77f322c10b5c490f17a4394c61d617e3d19313e0179e55112fba. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USCGJ0638351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e5bafa2da34e042074e1d61f347daabd265df6a588150e44c11b7571ffa3e6b. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/USCGJ0638353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14359b15739736ed94228fb78097d5e73a11c73c0424e927c7401afbde88b04b. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USCGJ0638356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e76548f143523e19bfafff4b3a34599141c55d99e70cb6f980f724021d00844. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/USCGJ0638357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc38d1e67ccb770fdf14eba67fbd8da3ffff62140663cea65ca6432fb70da7cd. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T11:04:37Z), 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/USCGJ0638358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb673133cdce1c4a112b613deb6105c081a693a3ff10dac306012ae7435b89e58. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/USCGJ0638360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x689b811829385bad9d12fb4c68ffe5766c01500a78a72c16be37bb9a21be8950. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USCGJ0638366.