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 0x92d9ddc0c878f36a328bd9de0e59be4c67c5127c4aba9fc8f3ecfe8dc891e430. Chain 2 (Bitcoin): anchored in block 953773 (2026-06-15T10:40:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c9726fb7-3853-4b84-984e-d1f2f918ac0b.json and https://artists.proofprofile.net/proofs/artist/c9726fb7-3853-4b84-984e-d1f2f918ac0b.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 0x3e9bc9fe2ae0930bb1b60dd6dc8a861fd5de263f24a387c948c478eaf03b0254. 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/QMCE32100664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a870a1e2c4865074462e92c958fa97ad6419d6bb5c1c9ce59b2052d2ab61e05. 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/QMCE32100665.
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 0x8563c2344e47efb04a05cb4ae1d78c2f0ce73f34d8946f4bb07999b99b64aef8. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QMCE32100668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd82e473f3b5da430de3246c2826bbc2ad8bc33c4dacdd82a1838f00d6ca0e56e. 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/QMCE32100669.
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 0xa89e7bd9ffc552c56fa9db0f0db63b6038d6b6183ea18f553776da17b462098b. 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/QMCE32100672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe82cdbbd32ab99342274b19bc8625f997f25a69df2449c6e19dac2dc1e0df96b. 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/QMCE32100673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd72dba8f8973081a1ec165656ab767d1fd3c3bcd83c358a59577e44209c89ee5. 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/QMCE32100675.
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.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb59c568ea2eb2d79f6f96ecfe31f37c01f3aa8f9f1e73d58b4486ca8f6bded33. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QMCE32100677.
Sincerely, Gang (feat. Taliban Glizzy & Doe Glizzy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8557be5468a9a577f34b5b83231b1df719c707eec72765b899e1d745a3f066f. 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/QMCE32100678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68e006404b9ddd385d58346614aa17a4534f99c772e8940aa4d16eafec907e2. 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/QMCE32100680.
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.