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 0x4b0f6c1519b1cdfb4dd30bd92ffdc539292d93a23b866b72b504bea8ddeca06c. 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/deb8b2af-38d5-4c6c-967a-568ab317b5cc.json and https://artists.proofprofile.net/proofs/artist/deb8b2af-38d5-4c6c-967a-568ab317b5cc.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 0x729d32f79b94f966724c6be7bd3d269f010a273423bddb3d81bed26b8612d9e8. 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/GBBPW2400462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b973c5cc3b91aa85d768a6126165b3fb6ce5a6369561e5a6a869bdae7f51200. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZ5FN2066341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e79b90cb70afd7407bf75c581d86f793ccae7e0b0ad8939f65f2ac6257e834. 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/QZAKB2165494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0ac5496fdc7c26f18f17763e1bb73da5fcf5ff75e8d778411d10751636fe9d4. 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/GBBPW2400464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddde1c401f6581b8e62f016d80fd34cb866ed72990369c86889baf5cd7989d00. 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/GBBPW2400465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc8e5b82447f5a176a9ae648f64fba7e36986c142d9765f2ee1a21c2f20c600c. 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/GBBPW2400466.
On God (feat. Earl Sweatshirt & Tony Shhnow)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb5e990494cd33e6df777f4829fbacd4cac0596761bda59100f6088e4d8110aa. 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/GBBPW2400467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dd2581ba5fd3484169d858193f8ab494be0a10eba98e89b539d4ef76be30e20. 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/GBBPW2400468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd00a3a610697c3f2356894dfd6ec5ae7e7276e4b7708f9c3f838ef8ee8d19c1. 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/GBBPW2400469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce51e00ff78f97ad7683c44d969526aed2a67fcf67176b793522e4b47e96252. 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/GBBPW2400470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x729d32f79b94f966724c6be7bd3d269f010a273423bddb3d81bed26b8612d9e8. 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/GBBPW2400462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916b7b9244b0b4aec92adb4095ef4c6bfaa988518364a24be5dc3980e62e8460. 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/GBBPW2400471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f959f905c0b9b4e264365a7eca8fb6019845235adc950379c700993f7806389. 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/GBBPW2400472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x306d2759c282240f29f2ed2c94d47b5c11a94b3471b64f875d38cc12e377235a. 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/GBBPW2400473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa42791d5f8c5ddb7d6179f346c92f23c2df067a632be0d145a7077df691fcaee. 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/CA5KR2260316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf159fd85867d070733b5c49a6adc3c533e3e838d4a42b04bf14551cb41ec6b9a. 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/QMFME2158597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa42791d5f8c5ddb7d6179f346c92f23c2df067a632be0d145a7077df691fcaee. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/CA5KR2260316.
FREEZE (8RUKI, BRODINSKI, MODULAW REMIX)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa42791d5f8c5ddb7d6179f346c92f23c2df067a632be0d145a7077df691fcaee. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CA5KR2260316.