Yelena Eckemoff is a Russian-born pianist, composer, poet, and visual artist. Her compositions blend classical music with jazz, and feature exploration and improvisation. Music career Eckemoff was bo
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 0x5ed71d8cf4974f58c5b28eae55daedec04d7e0365ccd0490791c0a0fef647e5e. 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/bb1df875-8198-4f4d-a879-b11e60e55cc4.json and https://artists.proofprofile.net/proofs/artist/bb1df875-8198-4f4d-a879-b11e60e55cc4.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 0x095d05cf54814f06bb34e83af1f3911855345e8e90cacb70af0e2c32889714be. Chain 2 (Bitcoin): anchored in block 960487 (2026-08-01T00:15:43Z), 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/USDMB1010013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4635ddbac21d43a8009c683f38124eaad1c3a267fe98e96e1ab145aaf90c042. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USDMB1010014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfbe03c26b56cee6f8e340bf8d04412236fbef4f0a55f159825ae9be8bf06e3c. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QM6N21708707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabdc6e0119e53dd4565be354e33dff23e654980945d6c15efbbc16621f7e2c4b. 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/QZ9F51850160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b0526b92d10f529a2ee76051b2aff2887a24854e8057f9e5027c032a6f54c0f. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QZ9F51850161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee9ce6c636205af4b04378986a983de5c09f1fd07abdd9eb0c5e1b525c71b2eb. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QZ9F52150221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79bf2489831b89f7b22dfadcbe87ba08bfeaac06f24f4e689960a7170615b0ba. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/QZ9F52150223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ddef49aea8e9eb4aa40ce26027e3e35e244b0b9af4b7245524266cde5fe84b. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/QZ9F52150225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62417de483f0f41af40e89d29ceaa581d8543d87dae7dba4f69e7d50f07a2f0c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZ9F52150228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c48387ce7b461b9f9c73901b2a215e01d2c011fa7a576bba06533d390e03661. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZ9F52150229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x165ee26b65ff4f271e9b8f4ec855cc92fa31f86a8b815defb5ccb933474b233f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZ9F52150234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfba724b66801ba166c00b0e8fa305651a45a6dadb6b847c79f3f004cd043f80a. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/QZ9F52550327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5b2597746452a79b3a0b75096ac6faf263de40d414d6b3feee15629b7ccf8ed. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/QZ9F52550322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79189311e72357c38f48429bd0d8105da533caa3a948f7154d33cb6178b0c65c. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/QZ9F52550323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fdd5dff0c65c710903a89b7dee9b6c32b98361e2fe3297ee794078278e27c4f. 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/QZ9F52550324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x368f0282876f7a9c07cc146c839500a71b229ba1c6122406da403017fc35ef10. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/QZ9F52550328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a6f63009d21e0144dcbeedec87f8371293bb9a6465fbe6603ca2401c1c49af. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZ9F52550331.