Alice Jessie Mitchell (November 26, 1872 – March 31, 1898) was an American woman who gained notoriety for the murder of her lover, Freda Ward. On January 23, 1892, the 19-year-old Mitchell cut the thr
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91249771ba70ec0736716b792720457eeeff7958a3134dfcad96f38cf1847be1. Chain 2 (Bitcoin): anchored in block 953762 (2026-06-15T08:21:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b94e0780-fca5-4f44-ba56-495af9bb7438.json and https://artists.proofprofile.net/proofs/artist/b94e0780-fca5-4f44-ba56-495af9bb7438.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddf21ae5e8b65809a751f9f4dc11cf8b672424412ce968e575a120e8b8436874. 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/QZVEM1819924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa4047e0b50427fd8d9f13f906ec26603f6dd18b899876bf3f4f4bb7ebcaafc9. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/QZVEM1819926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9a5c4a5286fd7b4bffed6e9cdc4f0576e0dfd116124ee8e1159d6a21cf5d0ab. 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/QZVEM1819928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14c87906bf6377c79e1c2a74a71912d023f885905762e0da508635d00521ce1d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZVEM1819931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa09a31af33511d664542b23e935326913abb8e62ba34b73b4b956f793a64374f. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZVEM1819934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa5371e62781e8a330cbebf40420ba21d0bd1ad7cbab70d2ffa06034fce2d12f. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZVEM1819938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bebcdcee75f5292d074fce5fdd68c0752272928bb4293a46015b84662607514. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/QZVEM1819942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59c52c0802178a7913a00e190775998ab7fcea27bce3b37d749ff6ccda2b4c8a. 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/QZVEM1819946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a6697953151c2d7e07e666b4cbb11e505986330a2a1ff6bc2c9826d1eda4c5e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZVEM1819950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64a4bbf822d6dd7812103faaeacab60e544a9045a9fd0c6464d878cddc49be27. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZVEM1819954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c3b7f8ea4860581b0cc33c14140b43e688c21f0187497b43c755af9c9fd4d7. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZVEM1819958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2173febb27400515a532730f635918356071272134dd57b2b10f212b8a7ea6ad. 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/QZVEM1819961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c1d34295a6271b1d491d23b59c668df6311bfc9c43e31f728f9de2b1409a98. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZVEM1819964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbb6fb806e41d7ab373307593571676e6b4022223f41f2e7745d381b21b0bf31. 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/QZVEM1819967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02ad0dfeb7159134a8b223e4a01e6abdb3e48b8ff7c090ea6be33728788788c5. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZVEM1819970.