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 0x2664e0cbabbef249092ef0966140c514e74ad1db358b20a2ee9dadad15303bdf. Chain 2 (Bitcoin): anchored in block 954174 (2026-06-18T03:01:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7cacaea0-a0dc-41c8-8185-f70466184995.json and https://artists.proofprofile.net/proofs/artist/7cacaea0-a0dc-41c8-8185-f70466184995.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Maria’s Silence (Original Motion Picture Soundtrack)
LOTUS (Original Motion Picture Soundtrack)
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 0x0f0a435f4647966ae7d037f5ee8eb5093682b6a103b572418f46eb57cf8d0b90. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USLZJ1875188.
Vuoj tu, lapela, kytra paukštela (Buciniškės k., Noragėlių sen., Lazdijų r., Lietuva)
DA LADUMA LADUM. Dzūkų advento-Kalėdų dainos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e989f9ca77a6dbbf03193b246b884ff58cfe1c2e40ac7f307ac8dbe69a3bf34. 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/LTR602400010.
Atbėga alnis devyniaragis (Buciniškės k., Noragėlių sen., Lazdijų r., Lietuva)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3de54b714ebf5d4ce844e06b1d2e27167ae5b77a8cfec0a9fb9c149edf29e45. 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/LTR602400015.
Ir atvažiuoja leliu Kalėda (Meškučių k., Varėnos sen., Varėnos r., Lietuva)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefef336d4269b23eb74e598f7eb76f7b1cfd063fe2374bfc5a777aa8ee498ee0. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/LTR602400002.
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
Ləkis ləkis sakaləlis (Subartonių k., Merkinės sen., Varėnos r., Lietuva)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e4334ffbf32c98aaceb31cadbdb90886f36b4c587e2f6ad976e33a173f4dec0. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/LTR602400004.
Vai tu, bitaite, liliumai (Žiūrų k., Marcinkonių sen., Varėnos r., Lietuva)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15abacb1c45da324db0d439a079c90717e7edb041be412f2946c27a4964360f6. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/LTR602400005.
Lakiojo dagiləlis, kalėda (Jaujakaimio k., Raitininkų sen., Alytaus r., Lietuva)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba23277e120e3541821d9a47f60f692db4541f997f43d159fa53030b372492d. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/LTR602400006.
Tai genelio genumai (Noškūnų k., Kaniavos sen., Varėnos r., Lietuva)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90806d3cbd73fdd2a4cf408432e0d7d4e9b789172dd669aa137b810cc0dd37c2. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/LTR602400007.
Oi leliumai, gili gili upelə (Gudakiemio k., Merkinės sen., Varėnos r., Lietuva)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc735b04b6b6221cef60bbf8da5a1ed15db7b19d6c8f62d4a77694271eb97d1. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/LTR602400008.
Voi kas girioj pamigo (Samninkų k., Grendavės sen., Trakų r., Lietuva)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaa142f00e6dda2bacaf5af0b91ef85855e97fd92f25ce4e93668ac92383cbf7. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/LTR602400009.
Uoj aš užsikėliau ankstųjį rytelį (Guobinių k., Leipalingio sen., Druskininkų sav., Lietuva)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2996144b144ab9452ca0873092795c9c017aa79e7cf2798fb3956f9eccd55716. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/LTR602400011.
Leliumai, anta dvaro (Viečiūnų mstl., Viečiūnų sen., Druskininkų sav., Lietuva)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc223aaf8536da867ce4e994080b19ee16439016b2fbbf6281d6f31389d724e42. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/LTR602400012.
Vidurij laukų stovi grūšelə (Junčionių k., Pivašiūnų sen., Alytaus r., Lietuva)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5efccfe03a56602f84fa64706beb1cc79d888b80caf11776d43ab682e9f2c541. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/LTR602400017.