Mando refers to: Mandø, one of the Danish Wadden Sea islands Mando (singer), a Greek singer Mando (music), a Goan (Indian) musical form Mando Diao, Swedish garage rock band. Mando Corporation, a Kore
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 0x417112f24641d3267c22faaf71613672e079946bce0e970a4811c1cc49351d81. 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/61d0b60e-88ff-46b8-ba94-d5af3bedc6a5.json and https://artists.proofprofile.net/proofs/artist/61d0b60e-88ff-46b8-ba94-d5af3bedc6a5.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 0x79d6a1fdf7d91240f7cbbcafc5606b893eaee63075d64699bffc1440bcc9273c. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/GRS019800249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e4ba146ccf3639aac1c61fabe999650a2e523ffdcd19b6c900a56d2c83ee39. 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/GRS019800251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60000f84cd09c889ea91c28aa094e769552cc2f07a1af47341668c1fbc847b08. 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/GRS019700094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b8a522efc4458b77b177e7e37ca0c41731bb6522ba9efaa1c4712d5927aa6e. 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/GRS019700098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d192fb1a0e5d841d3715ec5446fc064c47151e74e465185d7ce41affc12b6e3. 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/QM4TW1575517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7740b74c119bebbf54b89bf8bfeeb729be85d3b20bb6fa760dff9f0e80d565. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GRPT12100092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7740b74c119bebbf54b89bf8bfeeb729be85d3b20bb6fa760dff9f0e80d565. 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/GRPT12100092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6889638ff685fe42dda0c7d760c064c362ec3435c368dcea34b63ad480519a6. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/GRPT12400059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a983700b34d3b0a595bef84b8ac0b83fe4f325c3e6552ba35d1ecd350e11f55. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TCABJ1296127.