Supersub may mean: supersub, a cricket term for a type of substitute player/player substitution. super-submarine sandwich, a larger, longer or more stuffed hero sandwich. a super-submarine, a supe
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 0xfafee7c5ec6c4a45330b2ba6890443360f12bd40f42f9fc003632271dca20e38. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5a6024f2-dc6c-4ba2-a4c5-01c19bdbcd9b.json and https://artists.proofprofile.net/proofs/artist/5a6024f2-dc6c-4ba2-a4c5-01c19bdbcd9b.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 0x374f80c6e370cce1e718f1daad1491ad7995db5e58aa4330995b08f29a212920. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/THG010809460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6af1597a61cb006c7dab341d69cb9d3469feb0e7c4c51b3712d87e478c8130b. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/THG010823383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b3c76d8de9460a29b1ea16df060b509ae60f2d9c80f510b4b94040799fd47f2. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/THBLR1300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb495f9a1bb288155c8633cf7f0f1ebc52ec7695cd618797640efa77e5d23c80. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/THBLR1300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x312d412cfbd37403d01e08568a79697f552f5331ef89acd050716903a2f04c8c. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/THBLR1300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87c8cbf0c034bbf27ac68fd322aea6becca486ec53983e9032d911342564c2ad. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/THG011800201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68029db6fcc88982b88fb6c3844996d4ba8f315cf8f5ff22647535776c5c0c58. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/THG011800766.