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 0x693cc4ec87f3e0ae3a0e807356c8e43d838b5f12f9e9f117104524edc151dc97. 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/97c6bedf-079e-4954-a163-f4b5b5a75b93.json and https://artists.proofprofile.net/proofs/artist/97c6bedf-079e-4954-a163-f4b5b5a75b93.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 0x048979ee47551ee9dcf1c38018acb35c72f6209d17154fddf7de8bf1ff643818. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/RUB241547808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8303c83e4efb4098aca4f38a9c7c75b8f037339438f77d620a9f45fcbdf08ba6. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/RUB241548803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x412fdc5aa471f30a042e791c09b7ae272b627a1d7e9ab900dd26e61dd62d14f2. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T19:54:45Z), 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/RUB241972506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c6acd93f67f854549fd4dcbed87a0b07ae860fc8c46430007a8494f07ba064. 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/RUB241972507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e4cb56e9318a4c0ea1e52693f64175f70d49e6b34fb994dcf00d12b9b1ce96a. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:34:38Z), 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/RUB241972508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x826c180b84557d6198bef4d492a1f839989e6c8e34bec1cc02f48491239b07a3. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/RUB241972512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5555f0fd57e6897fc12bc15e6436a2d809f12bc0d1a22a6e1c92fe7b07801214. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/RUB242499601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3316a191117f6f52fd2e069d4a07629f884fff96da023051e06339c087150060. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/RUB242400701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d965403a17abc48a7012c627ad85b9ff1b9e8caed1f8fa63e161c29bd40b39b. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-17T02:57:13Z), 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/RUB242402106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c2cfb0b60169b0f2f7aecabb6f597cf5e8273e3da24ec9b2df22881434b2cb. 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/RUB242402108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd2f971dfd9761216de2c1aa89cce25d486d811732dd63ad697e363eeaf5a1e6. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:03:18Z), 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/RUB242402109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf0e21cdc53c369dd78fabfbdc615dfd93df0d5894f3bb941dfed842fce8d6ec. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/RUB242402112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3316a191117f6f52fd2e069d4a07629f884fff96da023051e06339c087150060. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/RUB242400701.
Акустика на случай зомби-апокалипсиса, Ч.1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1e0a3fcfb23b45c05262b419a6b3e15214754fec6cfec4d58b01e0b4d88d798. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/RUB242504701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5882851ba30cfba75acc8e1a6b9d7dbe791ef84a53c4a1f2351824b10ae92a. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:34:14Z), 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/RUB242504702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d7186202635ab2f2fb4631c42d1301979362a7d8f23083a5e0b5e819c8ee4ad. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/RUB242504703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bd1cf6cf2fab7030876f36a3f3b870086734aa64ff72a6010e2b5c6b84785ad. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/RUB242504704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa8539f98a369bbe1e2b7f4d681bc283a330dfd6ac76faa28634ac6957c8cea. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/RUB242505901.