5sta Family (until 2011 known as «5ivesta Family») is a Russian pop group from Moscow. History In May 2009 5sta Family with the group «23:45» released the single «Я буду». The song became one of t
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 0x429c9b6279da5dcc1ab156fc03e9f172dbdfba988592febf4076c0ac21947fae. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/acfa41cd-d0ab-4911-a0f0-43218c1367cc.json and https://artists.proofprofile.net/proofs/artist/acfa41cd-d0ab-4911-a0f0-43218c1367cc.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 0x22134a3d8f61966afcdcbca303efd597c102f0afc023da5cd92ff415bf8ed040. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FRX871528121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15713f632e7c2740ddf4bcf33d60d0c74e632882a326821deb9354fdb458375a. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/FRX871528123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13940dcb860d80fd333ae6040b0af869791600909987162960bdfd7e40857fef. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:42:46Z), 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/FRX871528129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa739060758da222fb87ae6d8415e65be7d4e1fa868653bb70552fdee2e6fee02. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FRX871528132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3debc13ebd59d8899feeec84aef1434ed5850cd02032cd753cf76d3e49b94b7. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FRX871528133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b4bc5b10a5191bf8ff6cce2573ec76dd19b2891d1348508e4c93165c5bde0ff. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:58:58Z), 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/FR2X41428001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa266c3f64d6ed2e998bd71901b926ff3c1afcae1942f548963be41ac214d6a11. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/FR2X41643793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70fd5667969234548d6d7d8057765f05cb4121ff92dd575b33c58b9175389455. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:48:11Z), 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/FR10S1740414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f4668fc44dcef923f4ad1717ee8848f6252d1bf2c4a6571f049201d89147b6. 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/FRX201825019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0be976c297818e502828c11f46b445264687688bf7d890d696ed393c5e50895. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/FR2X41979528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46bdb1bce720db72a58efded0285bff1dcaadf368e622af1cc9411dd30f868e. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:30:20Z), 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/RUA3R1919544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33cab84c82f347b17082089467f796028468cc3b93b09f9ff986243a95ad36a9. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/FR96X1968610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7088d7fbc6f43b04cc01aaee5804d0c38156c311dbbc604f87373b491e46bc15. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:07:17Z), 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/RUACR2000090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd329ac02cbddb7c63863cf54bab8eb81a75b0011e2e6bfc06908572b957e3671. 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/RUACR2000178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa31382284b751a1c41417e3999f0702a7661e4d71108c81d2f92881806b4280a. 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/RUACR2100360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b352c7213936461ca6663c5a295e41e800f648cfa9c08fe12a3c11ea2e414f1. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:24:19Z), 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/RUACR2100424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf357f775ddf46a6c127e8538f3aae69bafafdd5f128c80cffc47122b467ffeea. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/RUACR2200077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d4680a0ba588deddcc4d68d862db53129c0d44a2a0dd9df8aedb6421829e1b0. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/RUACR2200401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c0071c8795cfa756b74cff4bd4f423afa2e57da1db53687cd818a66fa5ecd85. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/RUACR2200636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba394cac06e95d8cf627e66d22a6ef3cd9454c90821b8b206cd3499d2720e3b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/RUACR2300131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd7dc44240a58d4d4292e7c0bed7841d542b05ece37facf1c24a1d9ca3c967cb. 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/RUACR2300766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x995b30ec43d5077da68d727c5aea4b021d4e241961b236271b2fb5f313dcdd56. 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/RUACR2400958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x133c62276067572f4ba3221bc31c62f9e23d875175defd4c7e6d6f0e03af727d. 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/RUACR2200578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1453866fc6da10ca77e30ac0e2cbda71494da8f81f3c02a88ce0e1a754d70291. 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/QMBZ92416430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90dfbeb5aa0aaedfd4ce01ec29ab161020d7a846ff7be66c7813f0003d1fda42. 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/QMBZ92416431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b0d5727f03481280a64dbecd494dfacb78ef9ef10ff790a7446e79663fea0b8. 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/QMBZ92416432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c651753ccf4f404fa905cd4900324c078664dfb3dc249a4b64be38d62d9c19. 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/QMBZ92416433.