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 0xda83c11ce8bd1dbd47dc4e480543fd38747496d842d80c7a02a670646c703d9a. 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/5c144129-c69a-45e4-8ea9-47ced0ace9d4.json and https://artists.proofprofile.net/proofs/artist/5c144129-c69a-45e4-8ea9-47ced0ace9d4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fábula del Lagarto y el Conejo: Vacue Sessions, Vol. 2
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 0xde3163b89c4aa121bc4c73ae953c45ef4dc3aa469fa7dd072bbedc97e242e970. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZMER2571850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b14ff4a548245ed17e6c113f0e9dd06db4e9debd07bde62e0b33c8d554eff1c. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/QZMER2571852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7d2084381ed8e55bb48d5df9026d9b3fa84ba809b42e027a4114f8e86c4ab44. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZMER2585559.
Waiting In Line At The Checkout - Sped Up
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8884afc543c7ea67f2677591f3fc0d740e99025f87c2c78d4fdc15988e0a195. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZMER2585560.
This Is Vacue Madness - Synthwave Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bfdfc49a3c8b3db2ad527eccdf1bd56f854136adfce039b488b00237b5740b1. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZNWX2595625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b83586c29ef7fcee4f31955569b7d24e60b976ed40109a4fa662ac236986c3. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZRP42520303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9410f1b9776bcb9a3b04556f2e8fe8080f1df5f077de095881bed82ba8cb782. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZZ7K2593278.