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 0x47280ae14044fdd18a520700db046dcac9d5c170df0218d332346359b594d697. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/768019ee-e06e-40a5-b237-b649a3b48aa5.json and https://artists.proofprofile.net/proofs/artist/768019ee-e06e-40a5-b237-b649a3b48aa5.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 0x66085ccc3a240b24b4bb83f30313f3867e98bd5ec4534745343a477e6a94c158. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T11:01:17Z), 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/AUXL31201134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8114eb189828a56a5c6f49b1871c361a603af86f92e3bf73722c579836309bc4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/AUXL31500444.
Show Me Love - Nick Skitz & Technoposse Remix Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe26fb72ef1c399ef75168aaadf96236a3abeb8d9a367961ccd84b8ff495192f6. 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/AUXL31500445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf66915c913af6865a9f83128c364317d88d9b47a7d46031ec325ea6477eeb743. 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/AUXL31600214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e1228c6c6c5472c237492486bbd323e98ffb014172394fb89a58b4a6909a98b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/AUXL31800120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e1228c6c6c5472c237492486bbd323e98ffb014172394fb89a58b4a6909a98b. 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/AUXL31800120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b0bb61ad17e0800f3dc5d578184b0be50384285602f2cc76f7b258e713fe26e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/AUXL31500443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe26fb72ef1c399ef75168aaadf96236a3abeb8d9a367961ccd84b8ff495192f6. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/AUXL31500445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1da3d6f23451719199cc1ea662aae0ec2c9e3a3a8eb0c84b62936c59d2c9cff. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/AUXL31600210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf66915c913af6865a9f83128c364317d88d9b47a7d46031ec325ea6477eeb743. 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/AUXL31600214.