The Carters are an American musical hip hop and R&B superduo consisting of singer Beyoncé and rapper Jay-Z, who have been married since 2008. Outside of the Carters, the couple has also frequently c
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 0x6a905f2a2217e71490ec985a1555221b4232bd9358341b971728c449dd640455. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/32879f8c-c7ae-4d64-b09a-8d1e9d509d32.json and https://artists.proofprofile.net/proofs/artist/32879f8c-c7ae-4d64-b09a-8d1e9d509d32.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 0x44b9cdd04fce8e1d1a36392e8cf57557860f9ee6cc721966e9282bef20c204a0. 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/QMJMT1801768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32cfab93b587dc50ac0d65bc8a434035ecb841fb06c2b3b39108b5c44586f7bc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMJMT1801769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be373f9a068cb8b9cfaea5e91dd4f373b0b8affe6cba62342884e156662c6a3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMJMT1801770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e94ec849537c4fe5bb612b42f3358862706da3f1f788e41046c7f5ce66aa9af. 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/QMJMT1801771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7538ac7bdfb5926d2d792335d159b5043dbf9f94cd44274c9365f3ec722533a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMJMT1801772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fba95043dfb0cbe77b9f3a933811e46a03571f70dfe94f5b89890a5131e82fe. 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/QMJMT1801773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x748a53c14cfbf6f5d428f86779e1643f27985dc7f1550bde25c364c46c25237c. 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/QMJMT1801774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47458a044accaac681e68bfe3eeed08d62a4a04f4d93ba2ba98aa1623b0ffde8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMJMT1801775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x366c82490e4a8e78c655e786eb6d644a6c88ca253a0345dac882d83a23be76f8. 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/QMJMT1801776.