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 0xe2a6fe3f2774002393fa4ea12178d7f99a1ef2246d3ed47a5ca0e8e0bbfbf5d7. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4c0e543e-ddcf-4072-9e26-f67c7c9b5871.json and https://artists.proofprofile.net/proofs/artist/4c0e543e-ddcf-4072-9e26-f67c7c9b5871.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Psalm 779 När livet inte blir som vi har tänkt oss
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 0x05216fa5a6806af89eaa60b7a768bcc035542ccce83aa90ecca6082e86c9f5af. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:21:08Z), 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/SEWZY0700101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e9361f0e3e79448e9d239de33c83f2ca21b6d3ad3db60745b977049a484f84c. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/SEWZY0700103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5448e8cff7960fa35d015bd20c76f191cdd6384345f2317cd17a04c659336f8c. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:35:35Z), 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/SEWZY0700105.
Psalm 396 Gud är en av oss vid detta bord
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e195ad473fc30ff3bdf436e420af66459f439f28b2c90cfc74ade7aa6f20d5f. 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/SEWZY0700106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc86b7a34b1f84f029494b51c7b47fcb0258d240de93a0035229082f7455431dc. 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/SEWZY0700108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200ec22dce8a6922b3bc0032ffdabfebdad37259da4a4d56ee5db85790c4b98d. 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/DEN960432909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08df05fc144248eb2318369a5d1a94129f0460cab496cc23668ee2dffe033f87. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/SEWSH0600203.