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 0x4854f17ff1ba595648ea9483f9592d6a7d12d73876347e1201e6c1d89287402a. 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/abdb0905-fccc-432c-958b-c87053a7c43b.json and https://artists.proofprofile.net/proofs/artist/abdb0905-fccc-432c-958b-c87053a7c43b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
If Love Could Have Saved You, You Would Have Lived Forever
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 0x92df15f3506e1430fdf7b61842d48a24e1e1e34ad1d663f46a0ea5ad97b5c2e1. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/UST8K1618646.
Maybe One Day This Will Be Just a Memory
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc14b73127f2c60cb62beb7fee0dfbb1a24b4e79e458fe30c0d5814c5667467a6. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/UST8K1618652.
Without Even a Single Lead, Time Moved Onward
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c021786149752f477ce19011315dfbff69dd7e50ac3cfb04cdfaf381538991f. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/QM2PV1733892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf24aefafc11e175c1aa70002f5a2d78fb9e95c34da4b3742e89d9d2cd902b0d6. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:37:44Z), 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/QM2PV1733893.
I'll Remember You, at Least This Me Will
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd61c0c4956abb649d3dfbe54b1a57fe986f4000d9acaee84a7cf20286baf81. 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/QZ9JZ1778725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ac65a7ca319df32fec02cec36c61804e0ded9b51ab4299c8fbaa4069a7c622. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZ9JZ1778731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac78175499b0dd5766568341836976a13d33df22a6ec4a6c8dcf48ce101c47c. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/QZFZ31972880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf2cb7872850f629e1c0d4940cc6b897750fda338c529a32405f87e74a17a23c. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TCACR1667738.