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 0x27595288aeb5a4b39e477902d6daf74bfada06995d6b129588c281ec8013f501. Chain 2 (Bitcoin): anchored in block 953621 (2026-06-14T09:42:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1f4f9be8-e168-40f7-89ce-650112950375.json and https://artists.proofprofile.net/proofs/artist/1f4f9be8-e168-40f7-89ce-650112950375.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Soulshine (3-10-20 Madison Square Garden, New York, NY)
March 10, 2020 Madison Square Garden (Live)
Don't Want You No More - 3-10-20 Madison Square Garden, New York, NY
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 0xa1a1ec4fefee4a8ce42a7f9c9d79190c4d5535b6ddd583f1445d327231208173. 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/USW4D2100001.
Dreams - 3-10-20 Madison Square Garden, New York, NY
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfaa672aa71dfb7abeee2959ae507a630bc8641c5bb4f06c7cb98206759f5562. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USW4D2100008.
It's Not My Cross to Bear - 3-10-20 Madison Square Garden, New York, NY
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1d4fc8bba764fd741b6a2928dd88cd6fe15dc0745b4f577157b3032753dd905. 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/USW4D2100002.
Statesboro Blues - 3-10-20 Madison Square Garden, New York, NY
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c47bb7a12360dc02dadd072b1fe248df1f4eba9fb0d6d9561d82b43ce20e6b6. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USW4D2100003.
Revival - 3-10-20 Madison Square Garden, New York, NY
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x421fca875577f61553aef1edd9f689f82ebec96e13f440ae4b664cc9d4c50a69. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:00:10Z), 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/USW4D2100004.
Trouble No More - 3-10-20 Madison Square Garden, New York, NY
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce4a5b390a973011ae9d23b16634f06061595565e237297b973ad5ad72af2f2c. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USW4D2100005.
Jessica - 3-10-20 Madison Square Garden, New York, NY
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x975215eadaa3c736c653ac0c1313bdae08755f475efab29d485b4a13efeb317c. 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/USW4D2100013.
Don't Keep Me Wonderin' - 3-10-20 Madison Square Garden, New York, NY
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fddd4fc77f24300f4393c54b0cf06c9876cce7ba121c58ca2523307ab741f74. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/USW4D2100006.