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 0xe4e97fc8dce58b21585cbc7c1c2aecab357bee1297394ffa9076016118cbde34. 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/ab062173-44b6-473f-8b15-70fcd454b92e.json and https://artists.proofprofile.net/proofs/artist/ab062173-44b6-473f-8b15-70fcd454b92e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Венера-Юпитер - Lavrushkin & Silver Ace Remix
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 0x4f125dbd8129dd6cc8a3dc25118530418da2604b805bec657bf1f60d4b2f530b. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/RUACR2100089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc2d5e2f36e0827fd8f3c3cf657a980835114614ff6f107910a1020831940ec2. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/RUACR2100090.
За кулисами (From "Сердце и как им пользоваться")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1400fb8bf275a5fa437ee2add28958caa9bac3a3ab8daf12ffad2b2b4449bb8e. 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/FRX762155865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b05ebb010c326a0da532316e9fba2faa9d718158a32e5cc46281d146027696. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/RUACR2200446.
Команда МАТЧ (Original Soundtrack Команда МАТЧ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64aa1f49bad3ee35f935dcc5d509a98dbdaa346272546fdd763ea92672b5e2ad. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T03:01:44Z), 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/RUACR2200642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4823015447677879c226c72df906c5968166f780c66265e9883905dc6aefc8c6. 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/RUACR2300073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9efa60dfbe6c20ef92b01af214f3d6a27472accb26f7f5e5ba54b79dcbcbd614. 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/RUACR2300076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f298fbc6ede39584746df950bb7c6d8b031ddcd4a33ecd7d3a3378d2fd3103. 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/RUACR2300078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41306f5c6aef58242a8e97390793bc000332ef04e8f6889af90dbf7ae49b6afa. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-19T23:46:42Z), 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/RUACR2300079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x083468bdb93328e2bef3dc5f7e71153cf7a966e6897daf5936072f1ae36a0fe6. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:14:16Z), 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/RUACR2300080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f84209564fa57f1b7ff56d5b3d25725121ed492f382f6b0a0e6e54da0c4795. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/RUACR2301237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bef9f1462d7b95e98fa8265ffbe2d872dedc96e2455c8ffdfcd03f142bb293c. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:00:53Z), 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/RUACR2402121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52fd0499d53d8eb9d4daaefafa110bf3b699e555172383b1a1ac63321b64d792. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:35:17Z), 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/RUACR2402317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ec21f3f61e456e10f26e10c3a37c779fffb0917f5b36226e6b0195d3aeae7a. 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/RUACR2402318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66bc57de49955ca0157d0828cab75e5ab8ed35edbf3f23e49033ca5418f2727d. 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/FRX452126382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81da02fcf410a59177f88c5d14bd3c0c8be9a02d1e52e08a65182e2238766068. 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/RUA582106407.