is a Latin phrase, directly translated as "by the fact itself", which means that a specific phenomenon is a direct consequence, a resultant effect, of the action in question, instead of being brought
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 0x3902a7608548b260eff7af8f582f9a0e5eeae60f016d356edb7305a219326438. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/428c7d07-3383-412b-baa9-b9c391758f09.json and https://artists.proofprofile.net/proofs/artist/428c7d07-3383-412b-baa9-b9c391758f09.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 0x0afd39b5a93d2354bf4ccc3cf6f76850d77210bf57cc4e25bc0958f3facacd56. 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/TCAHW2464864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e946600d30dca74d103dac685d4def5efd371a6e773bdafbe1621bca70dd92. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:11:09Z), 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/TCAJK2521625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e25979b68ebfd85dfab97d373a74db25bba6c91fde43e67fe054679cb8bdd1. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCAHG2387711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc39c36ec3e3ec990b7978d2674722be0b4b50a7dab403e05e8aba1d29710621. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T06:59:52Z), 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/TCAHB2381098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fe63bc54236427fe76001a595b392db0d2968498ba8ced6cd6a6729c91123db. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:07:31Z), 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/TCAGZ2323601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe14bfc878cf116fdbe0e8558878f7e00f64a0b048b4a2be04abbd51984812b9c. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/TCAGA2294608.