Igor Alexandrovich Akulov (Epiphany, Epiphanius; 13 April 1897, Novo-Nikitskaya, Korchevsky County, province of Tver — 27 August 1937, Leningrad) originally a Russian Orthodox monk, later a priest of
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 0xc42e6baf9e5a0307cd27b5c647f5bda851f1f58ef25cfc1d5a13f13bd70cbdb8. 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/854bc3ae-f4b9-43d7-8237-8555e478519a.json and https://artists.proofprofile.net/proofs/artist/854bc3ae-f4b9-43d7-8237-8555e478519a.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 0xa8a10eede01b8ca75f1ed13aea718026e415cfa7a5d976698449493e377f9094. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZMHL2085883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac31b654d74a5f75a20e024614e353a97bdf97ec2a11de95f4cc98adc779b8a9. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/QZMHP2079813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1602112a5dc7ba9419b07952fa2c8295f1173623ca248b6be009990f5283f87a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T02:02:18Z), 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/QZMHP2077893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b1735aefeefd904dc27e2f64d84c597ec005b757b9a7094974113c39c54844b. 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/QZMHL2030806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x782ddeaaab85766d0a4e001bdebfd4c545ce148dc5f796fa527ce0aa906eeaba. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZMHP2057408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x457b860ff0a82b58611bdc91794533948825a969ecc07dbebf2d3ea734f7386a. 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/QZMHN2092257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8230155a1ec08fcb141db15c28c3ebaefcbe7174ae7a082a7f8852362b0acae7. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/SE6TI2062302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f2ce1ec841be3beaef694d23ba18a636a9e285b121cfeefa60b113514d1b7e0. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/SE5752190639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd09c6455d5bc8c2a41e6d8027bddb5e1ae50e1b11cb2e12e5b37af879dff0510. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T02:38:42Z), 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/SE6SA2421377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4088113f9f784310fdf6289ca2c89832aee263d265790564c8898a05c5628f34. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:20:51Z), 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/SE6I32501140.