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 0xfffeb17b6179b95865b9e356dc3d734f26862e3ac05cdbf631efc8e4eba1a648. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ee8277a3-8b60-4bd5-ab42-dc1de9c57cb4.json and https://artists.proofprofile.net/proofs/artist/ee8277a3-8b60-4bd5-ab42-dc1de9c57cb4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Flights, Money & Stages [feat. Soulja Boy]
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 0xbb64045bd72de3f0b80ee3137be037a1151168c9925d95afa38349246cbbab4b. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/DEQ121638809.
Kein Limit (feat. Spinning 9 & Hustensaft Jüngling)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77df15d7c05b805ad4e3b3b553974ab2088cdb6cc76c7903072dc9ac4f342cf. 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/TCACG1518501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d52eff7c9dcaa8e8696e71d66c3ba2b41fb2a7f3476d77ae2fd958da1d0b9c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T00:58:51Z), 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/TCACG1518515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a0b3180e49d081f3a478679cb89f39794e2a98aa43e6e79354207c0187d1f28. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ATEF31900043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf0ff9f8ce8313f97dc92e62dd1631548d7b43cc9a9bcf73ff9016f1a727f79a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TCACA1452498.