Katerina Alexandre Hartford Graham (born September 5, 1989) is a Swiss-born American actress, singer, dancer, and activist. She played Bonnie Bennett on The CW supernatural drama series The Vampire Di
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 0x095ffc346e99c09212e8747d94e22d924fd99f6d7bdb34679bc8725a6e0a565f. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/da12ff19-0b6d-42d3-a732-2dea79737e7b.json and https://artists.proofprofile.net/proofs/artist/da12ff19-0b6d-42d3-a732-2dea79737e7b.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 0x3cb7267ca08ac513e3c5984925f2258142f26d43df5020bead2e96f476338ece. 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/USUM71201181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec02cc4466aa102b0954014deecc329abfbda8c0bba42bb8c07e8146f6955bd6. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/USUM71205048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d4cd724dc6bc4802298cb77696199a32ed949072ebc6c1a4edd67d7b6d15b1e. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USUM71205046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cb7267ca08ac513e3c5984925f2258142f26d43df5020bead2e96f476338ece. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USUM71201181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d0ca99fb9d5b72f342c61abe4c7a91b1f416dea25e6eea4d2c80859ba24162. 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/USUM71205047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea0aabc129ab7326a8bd9edd92f47edf645c3410cece26f672937e63e91baeb. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T02:05:34Z), 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/USUM71300164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff21e780c9ac32506a4ad59033cbdd2c47394114b33a6cd51b24c669f5c09586. 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/US3DF1537488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb227b823ff344647b9e83f7b9bc28052ef88a790406f976c29cc6feb0cde8cfc. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/US3DF1537494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd13bcfeadbe88c9ed9e3e9241bb4563ae1c462d1c22811446661bd13108680f4. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/US3DF1715792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbef49ec1129e31739ed38460ff5f61765899506ff0e234941b2373d989e2a5d4. 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/US3DF1715793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x439dc7eb1dc80d6bb524ffa572656f798139cd028474107cc7cc51f1314777cc. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T12:01:40Z), 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/US3DF1715797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3371550d97d2ef26cec939ef0735088d1a6618aaa37583f153ac051712d3b7d5. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/US3DF1715804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2731617e786592bdc9db78c248c4ae2999858f818d7ffb1398ee8b121b8a01f. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZQAY2211736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf1b725a00c0e24a9139b2fdd594c769a206827b418ad1f91c9b204cdb633d26. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZQAY2295964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf227b0e7b6d00ee6e97594075069d4c75813787e18d104f5d00b8aa7e565e3e6. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZQAY2252811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce820508e5a2d494d77ad445c0a1360ff909a0badf06c42166271bc4f45612f1. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZS7J2404797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3eef9a63e2fe200768144f6eee3d182a464c5854bf53828e802560e2e897c1e. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZS7J2463715.
If I Run (Original Music From The Motion Picture "If I Run")