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 0xf5313d56bf7fbc5d40d9a054249ea0d3142de71cabdd9d5cdb116de7c4dd7b4c. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/349647c0-3743-4940-8774-fff7630c3a71.json and https://artists.proofprofile.net/proofs/artist/349647c0-3743-4940-8774-fff7630c3a71.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 0xe980c54a3ea8232b08155001a433156c4e086929321b8a54d588980fce057d16. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZQVC2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a625515a69b7fe4ebfed458a5f3cf02ff0bd291e872880720bd543292ae1922. 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/QMCE32100666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5512ff07c7ced16c769bf4682440cccd0bd39cfa26843263c4929a49c7b2d40c. 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/QMCE32100670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd583123fc207dd945a5c343da1d74aaa6e47c0c46b044bc26a611dd499f5b340. 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/QMCE32100676.
My Life (feat. YoungBoy Never Broke Again) - Bonus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe980c54a3ea8232b08155001a433156c4e086929321b8a54d588980fce057d16. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZQVC2100001.
Paper Soldiers (feat. Goo Glizzy & DF Gizzle)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd7c8211a432e3c158fe270442a7affd5d095362e8fed29558cb5c1f4dcf6fc4. 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/QMCE31701548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa1f6adfa16d84e45de591beb20851861bc11401e56fb03ddfa02e310ea0e125. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QMCE31400170.
Da Man (feat. 3 Glizzy, Goo Glizzy & 30 Glizzy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3feaa1d85bf44e56df8e24d5e56d1de6ca4469a616dfdc670e6ab93bf212a95c. 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/QMCE31400174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a625515a69b7fe4ebfed458a5f3cf02ff0bd291e872880720bd543292ae1922. 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/QMCE32100666.