alt=3D medical animation still showing structure of as well as location of the spleen in human body|thumb|A 3D medical animation still of spleen structure and exact location The spleen (; from Ancie
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 0xab53810ac73ffdcf2c45e1009457b11fe457976d842c83b6427a6e08ac5279db. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5a18f0e9-daef-43fa-9001-684bd56f5c95.json and https://artists.proofprofile.net/proofs/artist/5a18f0e9-daef-43fa-9001-684bd56f5c95.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x855daf589d32c171720f58fa62576096ce05f11b26cab2f5e71ea086b428c41f. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ITQRS2401501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x467151db96b03ca15e98447c8dbd047c20aa0109ac61c9673de68f0156f690ea. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T11:07:48Z), 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/ITQRS2401502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac2fb9ea4b559749ad5ad620e6b21be201550783a0603e770f5a5e9fc30ed246. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/ITQRS2401601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ff7b87d815d7cdd4b2facf4f315b60ba3973c7fe3599f352e7d679654f28a5. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T08:25:12Z), 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/ITQRS2401602.