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 0x56f7d1a7e031f0fc1ccca2361d186ea064f836bda6fa383687fbd24d144db3ea. 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/72a83736-2a57-40d4-b968-d47ddeddcb75.json and https://artists.proofprofile.net/proofs/artist/72a83736-2a57-40d4-b968-d47ddeddcb75.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 0x8503c7688a4a9194b1a920786a9e66f2ef4e9a7b59879f1f1766c7ade22326a9. 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/QM7282303427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49ae34d297b9c6c3ed1c1784441e9ade32745aa8a0d6b3284f8d66d8930a0cc5. 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/QMFME2385624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4900c74569fba4c32c997ca6463a72a68a6f542820eb2a2ce626ad9cff3f5e1. 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/TCAGG2227457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd00e5bca933d931607c3b0de6165ab420bd07620dee0308db5d7fe89c413c4f. 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/QMBZ92392482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x435e46b9672275fa6b84ca4c3dac29dc9d3a89f55be556cf970b17e9727df513. 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/QMFME2385627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8421191cac1c4fef711e9bb49925d714fd3e25fc240f25f2c4fad03d5d509a57. 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/QMFME2385630.
Coke Deals (feat. BKO, Boat, Adje, Kempi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3708d3dc46a826f54754b0987b9fbf243a51c03c1b70702ee849bee7d925ef5f. 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/TCAGK2212752.
Uno Dos Tres (feat. BKO, Boat, Eves Laurent)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71628051d56384ca6d61ef74aa9f4099e5881e8aeb69cfc0cfd19e53c7ceca1. 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/QMFME2385632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23868b6e7247602e716f85a0913fa5152b130e81f3f1b731b0a7859c3d6557dc. 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/QMFME2336425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0147a806290d701284956c1f2c29bdb05a3d4805350e1e5e56ea1de27b290d41. 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/QMFME2385634.
B's In The Trap (feat. BKO, Boat, Johnny, Priceless)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf268a8ce66e30bfbc75e21d4deb97bd272b23e5477cd3b93ecd5581ba3f31e7b. 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/QMFME2385635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5eddc93d5fa8ff02186056729aa483fd70e84030b84b58c274e7e6dda006ca. 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/QMFME2385636.
Gucci Gucci (feat. BKO, Boat, Jhorrmountain)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec6d9b3a7e967d670f66f6ea722140da7fed75142d8e318711f3b737b22c9cc. 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/TCAGL2267156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x896a8d12c1847109818617a02a74403936258d6f85f21e7214e9f86b2e41fc55. 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/QMFME2385638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x495e9c5d73c2293e0618db93f729463a98f5ed20d2e1c53f26a5650ccfe88f36. 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/QMFME2385639.
Emotions (feat. BKO, Boat, Johnny, Jhorrmountain)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0070c5ce4380ac0bf906fc1ce84981df7fd8dc615a21350a9959f010fa5203ee. 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/QMFME2385640.