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 0x46dacd8861aeb6047e5c1e23b736116bffb8c9f714411c23115a7c8c36621aaf. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/abee3797-3179-42d9-81a7-5a3faa174718.json and https://artists.proofprofile.net/proofs/artist/abee3797-3179-42d9-81a7-5a3faa174718.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1-800-273-8255 (The ShareSpace Australia 2017)
Love the Way You Lie (The ShareSpace Australia 2017)
Young Dumb & Broke (The ShareSpace Australia 2017)
Look What You Made Me Do (Trap Remix) [The ShareSpace Australia 2017]
Rockstar (The ShareSpace Australia 2017)
Airplanes (The ShareSpace Australia 2017)
Glorious (The ShareSpace Australia 2017)
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 0x457dde7655608fd37256e418ebfc5bdf295372e92bbe2d41df41fc57788e8861. 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/QZBRF1825768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x512b707d04d9334ce212920f6d13479ecee5b972d7887a4bbc29268f21d800c7. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/QZFYX1961137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f6f7ff93a2a1a0f89e2c642db9f6e5aa314866c5f1f870955dfaff7ad2023bf. 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/QZK6H2206339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f420dfa2eec51fa31c79d8c7b4cd5944f10f5ae227f8ed4f4a9d9e05b8d9c5b. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/QZK6H2206335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f6f7ff93a2a1a0f89e2c642db9f6e5aa314866c5f1f870955dfaff7ad2023bf. 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/QZK6H2206339.