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 0xf6310ebf463d62652f64f19edae9279f0aed5fa23ecd7a8850d30a041d216897. 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/fd43b343-23c1-4a2e-882c-93e778f04208.json and https://artists.proofprofile.net/proofs/artist/fd43b343-23c1-4a2e-882c-93e778f04208.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mulalis (Slowed & Reverb Version) [Remix]
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 0x63ed8e994bb784cf3b9e39ad4eb3704fbe7288cbf42aa56b82061bcabda2cba4. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T07:42:48Z), 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/SE5BU2413330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca68fc94a81f12da69bb06274bbbb2f218bb7321f847e7bb4a2fadfa7885882d. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/TCAHY2450477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b50efa3ddb692b6c7babd8e763463843866fd86509582b32bfdc161fc08af76. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:17:43Z), 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/TCAIA2414261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb9e8048a7541a723c484e377edb8880e7fd98ff28aa9b72964df0782757829. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCAIE2459908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x769fa85ba35776637429beeeb88c11915368d59a81d8ffd153c3f661902c8755. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T19:04:43Z), 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/SE6HN2432865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3a234c071ab77427fd2bdf2ba8be649bd7e89ed8d374edbdcfe4a3803cd19b0. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:36:54Z), 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/SE6HN2432868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d5c1ed748a0b0453253f38c51849b1bfbfb078e40251c3a6fad594f3202eefd. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCAIQ2406149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x767c35f89bf77a7376131444acb83d0c19c84cf8f1d4ee4b53bb3f77254426cf. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:15:57Z), 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/TCAIQ2406180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd72d25ca62eb10819e3781771e6e24e88f25bb83cadd4d1f586a17f598de6b5e. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/TCAIU2401335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd95b3c0d8ad748535964648fa6113098a548c92c4aaa91fc7c9fce89fcd3d4b1. 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/SE6SA2478389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fa416e44b9950cb4f3e34c76b7497415572a1eed4a2b06c347315ff852af222. 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/DE1ET2383358.