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 0xfd21b23a702136d370f73dbcd9bf2e9690cb1746b83a83ec17a9ce88b3a8da45. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/872c4d85-c3dc-41ae-b55c-86a380393431.json and https://artists.proofprofile.net/proofs/artist/872c4d85-c3dc-41ae-b55c-86a380393431.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 0x5c255efaead31814b687a647f20e2f860edccf067883f5290cd1f29191505b25. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCADO1820794.
Coma (feat. Pleasing & RiCh) [Live Session]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b8951c7ac909957c158129d145d21e9457ed9b9dfc4a109f01e495a3fee24ad. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/US39N2201933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb4d7e464594231c853076f41ffda62206796afd7ffb3cf387816bba0f26fbf. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/US38Y2413894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b0a14c2d9e700f1a9318354db89a939c87238bdd19348e7b2c7769ee35d79b. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/US38Y2422348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x038e24ed5184c4f80f87ef84957b593a05a108ee7af16cf8bd2002def4bd6099. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T02:45:12Z), 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/US38Y2500551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b0a14c2d9e700f1a9318354db89a939c87238bdd19348e7b2c7769ee35d79b. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/US38Y2422348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde827a7b9bc4e0977f18c4f8f793b19c2aee2053c52f8859e0860efa71e72407. Chain 2 (Bitcoin): anchored in block 957564 (2026-07-11T12:19:47Z), 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/US38Y2500553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab3624e639d4091713a083dba57963ef72d3c5654e7c03a46d04feb05319d253. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/US38Y2500554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa53a26faadb9a9503788f530a496c4c503c25511f7f54e354af5eb8ca45111d4. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/US38Y2500555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4759ca7741629504e9133ba940b05e6353eda2cf3369f86c02c6aeb91ae7de85. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/US38Y2500556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b638a5dc64f57f46a047e7742235ff6785ae7b651096d90edd109a4bd34ed6b. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:24:39Z), 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/US38Y2500550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b4b7e11becd942f22a6a149c61bec1803ce082e97959411bf1616af03b5e2f0. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/US38Y2500558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84f0786a4c9cfda12322eeaaac5ef633d983f62406b6d3964861f33d4654188c. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/US38Y2575761.