Yiannis Chryssomallis (; born November 14, 1954), known professionally as Yanni ( ), is a Greek composer, keyboardist, pianist, and music producer. Yanni uses the musical shorthand that he developed
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 0x40e8cf50efbe248182fbd98019d86f65cf3959863611c280cfb5f0213514cb3c. 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/647c07a3-9812-4789-a2b9-3c023b492746.json and https://artists.proofprofile.net/proofs/artist/647c07a3-9812-4789-a2b9-3c023b492746.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 0xac1704733cf11d92089235212a63fe39c5c2c37168f020dda4ac332b0e71c754. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USPM19301029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb08476ae7464b0c349e8113bd61ccb21e51bd0c22992e9c454463ac8a60c2d25. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USPM19301030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x427af52820c166b63faf01e5f5b6b8ff289b7da0d6fe82d0506c689440424158. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USAHB1000429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d91abef10808511b3df83ad47c37cc8b03a344f99d54bb4a706e7142f89df52. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USAHB1000430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa40d902919b103c888f63d33def1dca65fbb1d85689b94e84a29b920fa82e1d. 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/USAHB1000431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18767d134272edc7c45f3e2dc4493c5d581c95e8603a6c20e5baaf5e6bb4b31d. 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/USAHB1000432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a51743ca6768d41fb9f1523f530e43e522f58f8245215a27e804effafce42db. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USAHB1000433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5afa19d195485c9652bf6be034458928297532af4d52399a4250abe2722ff3a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USAHB1000434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8804c2bab945bd2698a8d2cd0141e07bad554f5fc90a19460d5ef8d340ee9699. 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/USAHB1000435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bfd68206de5d6a3c310dedab8bf0de6b2f0e4b06140d12a416d8ec65aff7126. 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/USAHB1000442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd48bedb6be10f1f4ab93498a398db6ca21dce30271606612a5b7b510d26781c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USAHB1000437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3341cafabd188401ce8e33dad9025767026f085ca3aad443b55042b5821597cd. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USAHB1000438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb38825619c98bceb7c848eb412d55b0f5025d6f3d612141b02a2549af62447. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USAHB1000440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c607072027423749639b7e11a9d0a5ce0e77190474f836f9eb2f45526d0003. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USAHB1000439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4578a099a5a51d622d4c169d804a5488e2199d76de8bd895122c4a3a34bbb043. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USAHB1000443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13975aa921b0bf18a12c0533e34e6da4ac9d4c5126ef6004fc86c40730ae8e4b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USAHB1000441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbe044b0dcf74a59f95a86f81f79da41d3c8f6c6a0af95d84a32a4ff0cde02cd. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USAHB1000436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75e62c01a5918613eadf32ca21ba1230daec21ed4033245d73b7c4332007e7c4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USPM19301002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277ad9e28d57ea6978965126d247af1004977aa3000534a9d300c8dedba0b539. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USPM19301005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x642303e3657cb3650d17d37888cf4b95b79d8c55986e471e3cfef05d846d4db3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USPM19301010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0bd07e5e5ee74384a54dea7922e0ca197ad71fef02869ef14d7ae4e3bfb3d29. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USPM19301004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe682fb792397f2b3ce3d9e9c51311033173a07f36475f2effa082629a8663233. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USPM19301011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4092a5929077db996cc818f93e4a56f7dd0e22ce04678df329b6ef56e95e69ed. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USPM19301001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x199666e8d235968ae884a1dce84b0c0b9b8d607f483ffe327ad7f88b46bdf7d9. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USPM18701020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60212dfa171e3432715aa0e49a5ea34da868e2156930ea36aafa68f692457f2c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USPM19201056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc321815901593bc963b7de5d0b0adbc7120ace800ee153f5a978bae920fb55c8. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USPM18601027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01314a5d45cc5c405eead4f4dea1d6089fa382b6a2d3bfbf9fb5fb4878849e8e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USPM19201016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eabb8b2ba7aee57dc489f05da3dedd5a216c3cd3e1ec0a4c647cd7a913c5b8f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USPM19201001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1857bc0d116687cac7cba052037d180009c9886f8e2093bf71c146038cd767f1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USPM18801045.