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 0x244d061eff1bcc050507ddbe3959aed441e67d7f2d495208d6495dcb8fcc0297. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d8c71f5c-70ef-4595-a2b4-5190b6d4d1e8.json and https://artists.proofprofile.net/proofs/artist/d8c71f5c-70ef-4595-a2b4-5190b6d4d1e8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nato Radio's Spooky Dooky Halloween Special
TO ALL THE WOMEN I'VE LOVED BEFORE: you really don't deserve another song (DELUXE)
you really don't deserve another dante red album
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 0x769c471bd41a82a3d44182d52425e23740b840674a00d103363a53882134dd84. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:25:12Z), 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/QZTBE2463203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37644de301a958df35f9911a92cc836678c71331b94c6fecd9d3ac6c671078a. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZTBE2463207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7d9db610b20f7b0635076b484a48042c962a04804ba60c0586f47fcade8bb2. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QT3F22484066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1edfe80e927824f83c5fc8a3af4be9c13b643b1148b2f297bb6a266c2be0a268. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T00:34:30Z), 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/QZWFU2463117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b284576915f6ec71628dbbc2d6e16a678ae588dc99e8bbdf263cf6192e4474. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZK6P2593416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7d6f64c24b99d28cbd4bd49234e580219acb0c7d41b9e5709041b2ec6826ae0. 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/QZRP52571688.