300px|right|Valley of Salt, between Canaan and Edom The Valley of Salt, valley of saltpits,2 Kings 8:13 (Douay–Rheims) valley of Saltpits,4 Kings 14:7 (Douay–Rheims) or vale of saltpits1 Paralipomenon
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 0x4e0c163780d09f9e0716e1e647522b6f4562321db48a31e5daed87da197b3395. 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/f17e05e2-2202-4972-bdd2-f4229ebba1b4.json and https://artists.proofprofile.net/proofs/artist/f17e05e2-2202-4972-bdd2-f4229ebba1b4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Voice of One Crying in the Wilderness: The Story of John the Baptist
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 0x65714be5def2b00f46d0f46c16ff5fbbefc7e0578aa45ba3bb59e1ac83a072ba. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:18:30Z), 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/QMAAK2476915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77d66503f93d2924aeff87eb14817580d359c5ccd9c21b1a5e336e929d34a26a. 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/QMAAK2476916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff39befac4f1a5125c66c06bc37ed7ea800913d0dc0f32eac84f823875df306b. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QMAAK2476917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0730c082fe9ee0dd2a55aa8aa66647708a92e9a9aef63c61d923e48970afa1f. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QMAAK2476918.