Yashin () or Yashina (; feminine) is a Russian surname that is derived from Yasha, a diminutive of the male given name Yakov, and literally means Yasha's. It may refer to: Alexander Yashin (1913–196
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 0x7b1f031a3c63b2b1ebfafd87412fc54a9282fd0716f2d08b07b731cf735c2c8c. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9ddee2fd-0c83-417b-8dc7-36001e7027d1.json and https://artists.proofprofile.net/proofs/artist/9ddee2fd-0c83-417b-8dc7-36001e7027d1.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 0x7f13dfd5267eee4e8f787065aa7e4fe33af9d4911a26627feacc592ebf1d2960. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEE861500651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aed6cd06ba4d8fb6f5f9f1d3e280dec66461a035c92edaefa0606ba34577769. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEE861500652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc68a670a0e9e48107bbc7abe3f961e1099c192b246b63321a25385c4c869217c. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEE861500653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aeff814fc82eae86aec8e2fa0e8f08e18e648658801bc9f4ad8082642f0325c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEE861500655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc540414689997990837945d5913d88b6267d17d2c074b9ae88f6d29fb2fcf2b4. 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/DEE861500658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe034022f819eb9fa245ddf3039dfed679673bd2fe47137371945d2f83ac97ca0. 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/DEE861500657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba8f4142363b2da934717b12c1c71710788f76f919203fca1ce8a7200f38f031. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T21:04:48Z), 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/DEE861500650.
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 0x43d7619748babbf21e184cbaaf1677aa3f30eb5f3854c795e86a62378fa8ea72. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/DEE861500648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84dcc0f3ad0ee9b86f1c9cd9895d1b2016e2a541d56efcee297648b56f89eb23. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/DEE861500649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58f664d75b62338359164f993b7b30453630458eab1ecab90425b7fa2cd2f48c. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/DEE861500654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd4ca364f3ce14f825c3bb411f54ad0b196040f418b05cd6b6bbf44409ea1c55. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/DEE861500656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ce10a6e133030fc0f22bb21c1d41cfa5f9dadff337a78a80840831ac17e2eb. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/DEE861500659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x596bbe173087dfc073a033788e96f2fb7220aa204ce6de122c6e0a73037f52ed. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBT9G1300070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87adfa7965ca3c821a09f613fb5acaa9580994208b0a6fd4ce787030b46cb556. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBT9G1300072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85bc2ef0199b559246d4ea95d811a70a37ea57875eafe5fa452449f5bd4671fb. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBT9G1300075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaf04e7dcb3a97d736e80c7d54d58d1f63c78fac35882ac04490dc4ce7e8869b. 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/GBT9G1300080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6173e7dd6b5c3b6c3441f531d469a3829f358c87fe3f5977c634c9829f4764b6. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/GBT9G1300069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c665b874e8ff23a029fefd29e1a108fd3d0a54cb1c48036c71262a91321e906. 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/GBT9G1300071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5084716e16101c7d203d713a571350bb2a2b3df416c86c949152a09307f6a7a9. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/GBT9G1300073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6da7548746e59264219a7e59efa2749157592c35451adf8a892dc295bb888fe. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/GBT9G1300074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x445ae0d4785129fa541b19344fdf12df462a80ab4f982796607b54051e4169ac. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/GBT9G1300076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbef386b73f10b39cf6f36966537368afd01be7400c574f0d86368f92fbb03d90. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/GBT9G1300077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe04e1b8038606bc566d44eb1b63e4a132769e347fff678e036c854c8aa591f59. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/GBT9G1300078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39c929eae16903f34d7458668f2eff973f8c5cad7726364a9a1d2ab841e769aa. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/GBT9G1300079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37eae57d017992f3c6ff3708893ec5ee6ebfddba2da9c841f67d82cdbd7c1237. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBBFY1200094.
The First Rule of Fight Club (New Vocals)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ce3c6190abbc22556daf47045fc739796f63f4ebcd1441344e32b294a608b3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBBFY1200096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d9b1001940472d8abd10fbc6a07f601a230fddca004d80b5f911ccfdaf36bf. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBBFY1200097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x426ba5e785cacba2d0fad63c67086e01734006f911d94305b4e3c79a2c96f98a. 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/GBBFY1200098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5901ee4b3870c1bc5db3d1677a08052f87e7abe51913dac4efb82ddb58e28805. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBBFY1200099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274e99e5c435dfa4ccdcdd44fb00fdae19a4d16e2b608496d824737fc5c8a3b4. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/GBBFY1200095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x902239d20b363cad33738ce3ebba470cb653eb1014b2efc3f386353e2eb05062. 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/GBBFY1200100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4689c9ff48889ada6aa45f2ab9fb594c4aa67f217907eb21c09a0ba251fa2671. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEE861501141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c38648ada36cbb65a08470ff378daf635ba118bf9aed0380d23fff3d73f5f7. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DEE861501142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd2f3c1ccbb14242c93e5bfabeaa1f7d9da57783835f9f846fd44e11719bdaab. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/GBGXD1200109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa930907cae27952f15d28a18b29367ac827ca18d165bc33859fbab4caf46ec34. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBJJ31200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8909ffcf79f7d14a68f13fa54d68f2737a7e9d35150feb7ddd14a3eceb9352df. 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/GBJJ31200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x266f11fee44ea3cca33104231020dc64f061e145bf4da302fa16ec4590977383. 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/GBJJ31200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bcbdcbcc458b3520b1568cb2917ba3c6ae52636fb2ffe817b7b33aebc4aea1d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBJJ31200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9f3a99133b0caec704d069db08b97f31e9687027c290dbdf8f7f9bd9a4c58eb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBJJ31200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a7c47c7f7719e19cf0db7bd59c63f4c8006dc75fb483ff9862ac3837cfedd69. 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/GBKQU0908459.
Bass Machine Earthmoving Selection., Vol. 6
Bass Machine Earthmoving Selection, Vol. 5