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 0xd5312c7156b95dfe826e5eeddb3bd1fec62b3afab61cbce1be60cd2ea9987cb7. 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/6f33352d-c028-4546-88c6-dba279bfd9fd.json and https://artists.proofprofile.net/proofs/artist/6f33352d-c028-4546-88c6-dba279bfd9fd.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 0xd196f27c245c0778ab39139f00d75b9f647dc0551867d600a12e4157d6f59bab. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:20:46Z), 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/RUA1D2481579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa59051118e8204b417083f209b8c74b9580d591dd3f58068bba30b8cb0366e70. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/RUA1D2481580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdbc42b1aa9c225285b3e30f188969b194bc42e6196b63e07c825d52e80458de. 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/RUA1D2481581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9480af3cee358fb4779f115472a28f4afb2f2604fb549454bf212e3a751c1e9. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:55:21Z), 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/RUAGT2439225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb609bb07ed725c0b6ee6b23f154c36f402438d999392a40aa92f9c0a8f50cd9d. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:22:27Z), 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/RUAGT2439227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda8b14fd8dd4c74675d99915d62d3db76e920d16dddd42793d59c833b5eff589. 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/RUAGT2439229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c74707b55e7fab2335f61143f3e5b7a416911092479dc1113aeb2217d04a0f. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/RUA1D2264665.
Короли Абстракта VI - Мультивселенная ЕЖЕ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d7d9f1c8b153c396e88fe79facc10e161ba82b1ce67de29e62ac526ea31e9f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR2X42545167.