OU or Ou or ou may stand for: Universities United States Oakland University in Oakland County, Michigan Oakwood University in Huntsville, Alabama Oglethorpe University in Atlanta, Georgia Ohio U
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 0x69aeb5306e628cff51811be0d8a5215ebf626727cd7934ed8e2eb8171c9344be. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8075c132-72eb-43ff-bd96-efcfdf03b950.json and https://artists.proofprofile.net/proofs/artist/8075c132-72eb-43ff-bd96-efcfdf03b950.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 0xeeaee6bd2fe5446afddc3eccb55782a50846b9ee4b21a2fccf4b407ab361099f. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/GBDHC2444502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8da7ead939f08841a49c8c451aae4bdc2b52bc6e00f8da2ea16fcefe54e3384. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:33:20Z), 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/GBDHC2444501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeaee6bd2fe5446afddc3eccb55782a50846b9ee4b21a2fccf4b407ab361099f. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/GBDHC2444502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31f9f58d11be92122d0cc70de3ca8a8e4198db10c363c1bf8576f5ddcc1cdea8. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBDHC2444503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8456682cefd7056f718b7c9c1f9fbe360df594c5d89304e6a7e6c337d98e854b. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/GBDHC2444506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c24860dd23206d1d2ed67e797b37e4ec73a580f83d9d3a415bf78402a093ff8. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T03:57:42Z), 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/GBDHC2444507.