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 0x026987c24f73a170208d91b7e4e8a30db2d081aed48b308dacfb4e596b567c5a. 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/200b096e-e68e-491f-bbbd-9c4d5733f750.json and https://artists.proofprofile.net/proofs/artist/200b096e-e68e-491f-bbbd-9c4d5733f750.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Celebrate the Last 30 Years of Human Ego
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 0x128afa28189a59e8076144216852b1eecabccdaa6719a6ca2a5a3ad08ff6a4d6. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:53:24Z), 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/UK9C21700032.
Celebrate The Last 30 Years Of Human Ego / IFTLOYL
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a264afe6d59447755fa7ca0863c0a93cc8a703b4b269e00de86ab68c8743c93. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/FR59R1896696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b8fa1818eaa04c9d30c431ad4089177fbe53fd3098c5bf9e89127331ebbb457. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/GB5P51900229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e792ebdefe6de3fb2e8a8c452f0f16d46c4c88d927a67b2c2e69068bd437926. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GB5P51900234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x421d702069e25c3f2b246feb0edc6bcc93ed364db06b78f9658745f40b747eb7. 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/GB5P52000407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a6e2f7128732448a4f1377fa6d289149653983bbda6b08fa84c11f8f632f7d. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/GB5P52200554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8378957507f4fc6547433c1172166a366cdc30577f60444d517dd9398fda0a4. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T14:02:30Z), 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/GB5P52200555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39bfd078cb381e0f50b8559c3c5972cfa85ab965d651504ee79be607ddac35b3. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/GB5P52200557.