Otyken (, ) is a Russian Siberian indigenous music group that mixes elements of local folk music with modern pop, incorporating traditional instruments, lyrics, and languages. 'Otyken' is a word that
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 0x13970fb1ff22f4625c9fc67d1ad60f0bd0e2c0fbbf0f7934b97b205068d1bac9. 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/280b5449-e8e8-4b59-93b1-c22627d6bb53.json and https://artists.proofprofile.net/proofs/artist/280b5449-e8e8-4b59-93b1-c22627d6bb53.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 0xe2c5080714cb7407c4a69aaceabf3be4ca2db71005ecb4b27bb0766b14159c65. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/RUA3R1710107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c85878a513fd04c2434a3e7dc42fce3a3398050453819323ac0aceaa5a34ab. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/RUA3R1710110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd727de4861b03acd7548278e6929dace71ca93e82cc0e20a0c97d101917c4d9e. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/RUA3R1710111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9615bde8df564e4c5dc2b01da727ccea586f3d2f021d6db5b1c1b7bfadfede3. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/RUA3R1838708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c37feb2ff364d825e201c3ea500e5bab504efbbfcb54206c08db8d43307fa9. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/RUA3R1928761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9d4e536e5646443d2ed312892348066bb26de3ecebe5146dd60b4bc7fc2a452. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/RUA3R2112573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45bdfde363fe8bb248c4a2087ac8f9fcd4877289e01807819c6abd174795c243. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/RUA3R2112575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad7a3bbc52d7c40f4ba45ee51ab1805adb365cab623147d8e386b26cd7caff02. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:49:28Z), 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/RUA3R2112576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c550aeac5d002c38232c8ceb4cd59ca53401717f298905208c00a3ff6551a55. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/RUA3R2126871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ee893e80124c9d2b50f382edfa1f0506a5238d48443ecd8747e696b358f414. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/TCAGB2237315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d21aeee7c9741109077e8fbb9a8bbfcdf8ca2344988230ce79ed5e6ae76dec2. 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/NLY7Q2200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3e3d7cdeb69f1f0f8083a69a6734028d5829586ea95d3e752f11219f25fb8c. 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/TCAHW2450920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ec5ccf761d8434d0b166ca2ba6675d0b69accd30f00da1040dcb35a1752561. 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/NLZ542301291.