Altai Kai (stylized, ) is an Altai folk band from the Altai Republic of the Russian Federation, founded by Urmat Yntaev in 1997. Their band name means Altaian Folklore. Their music features throat sin
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 0xed8b987b5f29c6abbcd48b953178b34f62be5ed0d80ffd1f4d570c0ce4d94289. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ea1f1bce-cdd3-4c6c-94c7-750c7c0e7cf4.json and https://artists.proofprofile.net/proofs/artist/ea1f1bce-cdd3-4c6c-94c7-750c7c0e7cf4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Where Altai Is in Rise: Musical Traditions of Altai People
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 0x8e9a280c42bfd36b1650c9553d6057a3d81ca2fe5b1f5d3aca63d4f3b5a37831. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USHM81950399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7feb0c63a7496524b45039668031b9d9809a1267da01fbdddd527e25febb4d06. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USHM81950403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x337fb9ec986897182ad18ba730da910101d54d8d800c83fc9a96b8c747304b7c. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:55:11Z), 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/USHM81950406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6cce9b6259b0f4beeb163bf539457f96fe16c170cc37678c6d16d683b8e2c1b. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:07:13Z), 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/USHM91993436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf85b108e242bd8f0a81d3a0137606c8b90b238b565739ed8e722031857b1e829. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/USHM91993439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd402dc8d115dacec01786e9c0cdbd6d6443ce2f699d58f683ac019c777b391c2. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USHM91993444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b0988d440781c2020940db63c21e5eb0b80e4bb0685d70a689c1aa9160174c9. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/USL4Q2113013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x076575e81a1890a4c4209a20a0596b54f091a6ae84f45b0480fbcd832d10bfd2. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/USHM91912613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8cb0d0da4861a89a12e04f1e7ece4da44c1b8cd42a0baab0ec8d0152deb5e09. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USHM91912614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd1be71295e7f218bee00f7808661775738a4782313ae119987dd54017e4ce18. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/USHM91912616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7336b6748f820c3df7b1b2064d31075dbe5ca7c7ad6d24b603682db3fe3de984. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USHM91912620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d1ded3e72abe88fb1dd0f735da70bf95a5970f9a820961c6726a7be135e336. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/USHM91912623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b86ddaeb3291c78df565783300515f0440076fc0148d428fddeb9ba49b9c763. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USCGJ2009617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0641e726b3d28fa519a54d29c7c092df6738444e4cf3ed32977ff7fa0224c9a6. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:25:43Z), 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/USCGJ2009618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e623288dbe3c1d92b7e67ef0947845111ebb5d1822e7806c8a4edeaed544108. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:54:55Z), 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/USCGJ2009619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca6765437272620fbabe26f31c6251379182aa8e73b5139307a88c217893c42. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/USCGJ2009621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39907f8cce4f6b80f038c019576385165c9658731196f906d9913372b0b1eb5e. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/USL4Q1908762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32a2f8f4dfed535e8018344859a11bed2df4d1916f3b474a60f01330a14f19de. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/USL4Q1908766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b5b99251bfeb3a8dbc5117de21791295703f1d0b945d029d5e1f9eb826d5531. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:34:00Z), 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/USL4Q1908767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8b378b8b00c1527329a55773e29e05c5c3a3f56ae8c0ef6220746cd40183275. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/USL4Q1908769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c53006a8e4671f504065471597a2d1993ef3b9e4ba313838aa734f8ba82f00. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USL4Q1908770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb292cc63ab17ce1f6fedf511c44c60aa022116a8453fe6533d83f7b9f53f1631. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USL4Q1908771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81a69135f74524befb37319adff6d44f31b6ae353e77b2f4960727f7ed35d6c8. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/USCGH1944767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x667cd2d98781644c2a84504bed549506be094ac2b21c7c1cb6a18c0af51b565f. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T03:58:41Z), 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/USCGH1944768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed90f8f543c7e940f3d7f4297f733a1cc053b75b248629f321936974c4f60b1. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/USL4Q2106243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c2c0bd65aaecdbaf4ccd72453d9a5db6e972a8931f6cfe3ae91b3f61687bfe7. 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/USL4Q2106246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x655b3b2caefa7a9b0fbc72f8bbc09334ff4f29cce1f56314e94bd98620f698f5. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USL4Q2106247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff862207fd608dba7382f89089cbcb3d04c32dcb47e1886cff058e65281fb5d1. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/USL4Q2106250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x525fac4ad4a2c43a8d1cdcc01f211420d01ed08c55be6d67a312bbd47b975221. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/USCGH1934328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8149c4ef821d01d56285b0bbfce3231d427a6fb63f99d5f73d7f80255765e671. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USL4Q2111213.
Honkoroi, Vol. 2: Compilation of Siberian World Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc03f0f36ed3d897af3885c6a55310a47d0d42aa38822571e875c1f137216efd0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCACO1681576.