Fabrika (; Factory in English) is a Russian pop girl group, originally from Moscow. Initially a four-piece, Fabrika was created from four female participants from the first season of the Russian music
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 0xb389a874c5bb8f4cb79832297c7677a4c14a1364f095034c20758c6fee6f3bad. 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/54baf80c-f22f-4514-9e0a-851dd704eb52.json and https://artists.proofprofile.net/proofs/artist/54baf80c-f22f-4514-9e0a-851dd704eb52.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 0x52747509b182bce983c496c28d1ec1c2e1ceb0057029f92b3aafcd15a1dd5d49. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/RUA580310451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28550f1931e295ea5cdda8c89c720f19c6fcde58bfbcba650a8bc22ea3fc4b5c. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:28:02Z), 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/RUA580813502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb0a70f9aaab114b94327ac61f9c2ed36d33bea82e32efced3f6e66e4c9d31bc. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:51:03Z), 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/RUA580813503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd9672c3dc6e78ab9aa9bce6187f65eddfd306d1bcac643c8742a2cc706d1a99. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:28:30Z), 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/RUA580310602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bfe8e739b553a94799d194d9975db899dc8908ab7e2da527911325a4c3015c7. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/RUA581317116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab2112ace7915b10d44aa65d0680aedd70e85e1a59a83fc80f1b330807bda43. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/RUA581317115.
А я за тобой (А я за тобой хоть на край света)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c1d63c4684dad39af884dbaa01e300f1553a7c79532c5599c24f75265c6e9dd. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:15:39Z), 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/RUA580917103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b70ac1f937202abfa682ee646b63754d911b29db13a820383ec74fb91f899c0. 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/RUA581017106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba28a229589a49d62893eb35ab389849cd0c85855c159d53baf5314ebedae23d. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/RUA581717127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x628ad844e8e2ae931654daa3e0025c926c3a504ba2c0675006e4cdd63f8bfb3e. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/RUA581617124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0032d55b817703a1c5990a379de0239410ead2d10f23b43da5cc91fccfc5499. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T02:51:48Z), 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/RUA582017134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa393e675d0e6b329d13a0c22745d0d0f6011e347271cd2460f475ca30cdb976c. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/RUA582017142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c1b161d59e28be7fd8de3f48e211e442f1331a218d6c2d0ffe91f79e420dc58. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:11:12Z), 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/RUA842319246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdca800e1b9d6bfd4caa99149a9673c1f4332744d22443a34619d26664d42331. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/RUA582417126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61151f668e1e33ac63da231b47474b4fd01df86839ef2a6fa08b23953d2dbd05. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/RUB732068555.
Тянет к людям (Любэ 35. Всё опять начинается. Трибьют)