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 0x35e964b153d0ad29372c9d38b6feef44c0641d29a292d2500e26fe8827ffaf0c. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/272cd3c0-e526-4d80-9f37-2f9ed5173cfa.json and https://artists.proofprofile.net/proofs/artist/272cd3c0-e526-4d80-9f37-2f9ed5173cfa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Por Qué Tuve Que Quererte?, Azurduymanta, Sambitay (Remix)
Por Qué Tuve Que Quererte?, Azurduymanta, Sambitay - 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 0xf587fd0a02a1eb930b99ad32b43e19baae5bdf4b1d4e1b4b4d5031fcb0a4218b. 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/MX2832315779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ae487a181d2ab9f80da33dd02f631b2ec24840983eecdb1cc4b3fcc5b83cc99. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/MX2832315780.
Corazón, Miguelina, Sambitay, Colquechacamanta (Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec2ff383a60a41498abd3046192269edc3c39ea881d5eb228a447f554a701f0. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/MX2832315778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c1d8efc451b46b7bede359af6d8c1b84e4d7709fef39f49b2a30c4d3b279aa. 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/MX2832568760.