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 0x0ee2e4486080691ea68ad747876d404af15d01a5707d86cda502e74472cfb076. Chain 2 (Bitcoin): anchored in block 953719 (2026-06-15T01:07:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8976e207-2f4d-4e08-a75e-2bcffe7c7629.json and https://artists.proofprofile.net/proofs/artist/8976e207-2f4d-4e08-a75e-2bcffe7c7629.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Shut the Fuck Up - Mouth to Mouth Short Cut
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 0xc8911ad2f83292df6e93c86955c4c6e1e16441ec176977a9a39c456773c8622c. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DEN060601538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3adafcfdef2ef1bed3aba593008b07ebda747e60664a4fd2b1ae6d626f4807fb. Chain 2 (Bitcoin): anchored in block 959003 (2026-07-21T14:35:14Z), 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/DEPI82111360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4db7bf9d80d51d6ddbbd5d41b2e23b81a6a86da4de0f76bea611e1f99a81a19. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/DEYZ62100202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb330d6c330f978b7ed163dfbf137497dc41bc31396ee5ae1dc1084eda0ae2ca. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/UKW3Z2401803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8306a35ec8508da2f406fedccef0a422d26c6f045065762e9edc4e681fb93a57. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEPI82411627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb330d6c330f978b7ed163dfbf137497dc41bc31396ee5ae1dc1084eda0ae2ca. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/UKW3Z2401803.