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 0xb7ffdd32db703a64585b755395ce87304e9e4db6d727dc121de2b40a4dd73e79. 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/ed9179f8-056d-49f5-bdbd-c428c3f73393.json and https://artists.proofprofile.net/proofs/artist/ed9179f8-056d-49f5-bdbd-c428c3f73393.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Feels Like This (feat. Jacquelyn Willard)
Changing Me (feat. Sean Michael Murray) - Radio Edit
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 0xac35ecda119521d6a2a5d29a60f2ea792f0988ad8c4b262961bf9307593a70a3. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USRE51412289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab6e5db24b40e041d4422e254caf01c240bf0afacba7b11a0cf570975c71234. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USRE51612304.
Lights (Extended) [feat. Whitney Phillips]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf137dc493e24f5d4b944320e9e347ee5d419eef7ed3e173b4b79eead3bd6791. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:34:23Z), 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/USRE51632304.
Lights (feat. Whitney Phillips) [Radio Edit]
Lights (feat. Whitney Phillips) - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab6e5db24b40e041d4422e254caf01c240bf0afacba7b11a0cf570975c71234. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USRE51612304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75cc29b60cd62c2ec56cc7852e4c17e092423d45d6e84bc9cf269caaa4777e77. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/TCACR1616892.