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 0x5261d881e1cb8c84c1c973d91a120444adee3d6d21bfcb555647f5840d9724bd. 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/4e4ae0b8-f93d-4aca-8960-456d2e955b01.json and https://artists.proofprofile.net/proofs/artist/4e4ae0b8-f93d-4aca-8960-456d2e955b01.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mangi Pangia (Souths Dedication) [feat. Drex Blunt'eh]
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 0x021066a6ae4852a5a2e44453ff0cf73952a9dabe978af36974e4380a01203995. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T10:52:16Z), 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/QZES51933392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7a4931ffb549c27a22327f7d391e2045ffd865eac76bd21c2143c635d8a4252. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USL4R2081413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7a4931ffb549c27a22327f7d391e2045ffd865eac76bd21c2143c635d8a4252. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T02:39:14Z), 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/USL4R2081413.
Farewell Tunga (Grand Chief Sir Micheal Somare)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ec3d533c3a7a75c6406a4d4f9c640482997338e7f73e1ddbab524995a4ff876. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USHM82224959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b562794db0c3bd7def10dde0fd67ad06b70a2e5924b8ec39374ac83302c7738. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/USHM22268444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x304725a25401fb8acdd4b5276c56f97602c28f25a07b940e4e9b91c517d3a473. 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/USHM22268445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x282749688925c6799ba4543b80593e101a01df93f55baad943cebff8d0cafdb8. 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/USHM92284867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b562794db0c3bd7def10dde0fd67ad06b70a2e5924b8ec39374ac83302c7738. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:53:41Z), 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/USHM22268444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ec3d533c3a7a75c6406a4d4f9c640482997338e7f73e1ddbab524995a4ff876. 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/USHM82224959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x329877509737344ed7d655a8b4af2015abb081c92cce5d5bd07b78ebdcc87a2e. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZGLM2588341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c2596154b6b0da925f29dae76ba59017528639be7fdb9e0e2049f5bb3bd53d8. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/QZGLM2588342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd00eb3b258a492180de7748e86e668247c839f796551937ffc5ac69346f025fa. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZNJW2595751.