ASC may refer to: Educational institutions Anglican Schools Commission, Australia Andres Soriano Colleges of Bislig, located in Surigao del Sur, Philippines Agnes Scott College, Decatur, Georgia
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 0x15609e84357cd26a40ce985ecbde6495bff32bc79aa2b7493359b9363ad64999. 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/ded69b0e-f701-4447-a228-342d2850fc3f.json and https://artists.proofprofile.net/proofs/artist/ded69b0e-f701-4447-a228-342d2850fc3f.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 0xcf716e002696321d766e60d0247f2cedc807551c64193d3a0fd67efb08ed7c1c. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/QZFZ42168084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d6c68b3401929eb305c39a111e6e5f387816b040162ddc1392b64fdcc08f11b. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T04:35:30Z), 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/QZFZ42114595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x186cb93291835846f021e959cfcbcf5eb53a5e66f4e8f0e257154c462ad43cb6. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZDA52122274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb78fbe854fb201eb142db538b2efdbf97323f2190a06b74c83f669d870b0259a. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T17:39:16Z), 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/QZDA82180101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8db61c3012ee6722d90fc817a195f9c71cc9c96c64be7c10e1abe4e236f617b7. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZNWU2103238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd606c199b32084a62a58a56b81bbc07143ea0e93f63a32ba1d9e22438126fa2. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/QZTB72211083.