1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xd126706ece6a1648d13011ee8034ca8ce47213cdaa9d0638a15790bc156c2347. 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/e92c769b-738c-4d02-a2a8-16665d603249.json and https://artists.proofprofile.net/proofs/artist/e92c769b-738c-4d02-a2a8-16665d603249.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Summer Sky / Baangpolskan efter Zacharias Baang
Summer Sky / Bångpolskan Efter Zacharias Bång
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 → block OTSBitcoinBlock must exist at that height 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 0x1b8853f832a02b40db3e48e43787dbbe40a5263cb446a9ecd9ee78d588a618fd. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SE5P51909505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x999db7abaaabcd4c0a96d30e878e1f980d9705b63b4630d6c754d3c6e249e423. 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/SE5P51909514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b041f85e9d805e1035eb3a784cc54e698a1f5774bf26db0246ed53b8f08d328. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SEVPA1100204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5042d52d57fdfc5f99da8daccf2625400702cdaa7c841cbbe73bd599571b6cb6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/SEVPA1100211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa35bcb24a25e826af45ed8cba2c041e369cadb57a8a8d9e808e0133da9433d9f. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/SE43Y2101305.