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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f2b869eee2d4e994e7617b1c03af1094934df93f105214f8544ef17f5ef2fe. 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/5d89e8cb-c550-48ff-8188-0ee6862570bd.json and https://artists.proofprofile.net/proofs/artist/5d89e8cb-c550-48ff-8188-0ee6862570bd.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16bd30973f8586207ee7b0c3f44556179eb7d4e06060e9e699859a017ab69b61. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCAFA2030028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d40b7c51901a64c02faef4afde9864ad3b498608cea1c6718d92b0b57be849c. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/TCAFM2170480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e78a2301b5b3ea604d3c0a4fab12d8d1d4813f19ebdd5994bbd637ee90cbe0f. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/TCAFM2170521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefca5072abafbae235efc0eb6a3e650e37f41f0904321e7d742b9ea07cf1fc34. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/TCAFS2132410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde27fa8bb412218b97dcf2903990f83f4d9787c67a160d3160e64d050bf294d0. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/TCAFS2132412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb36e5b66f1c285087764564deaae51825228714d6115dea1ceb04fcb2a6236d7. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCAFS2131077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ecee12f5c24dc727bf495648bcd36bc585e1db6895ba4fd1b241492667c66f. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/TCAFS2185874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6529944db93d3f7a7dbb63445358fe38c6146c591dc1767a6f739388da6c37ef. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/TCAFY2165112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3963111c501f20e5b59b95a8201a974865ca07aa21db7896b0c3844487e7ec15. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCAGJ2289674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad02e625f5a3162669c7919379a4a4728b47d28abb1060ec416423467f0e059. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCAGJ2289581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2830178f86a1c7da206e59eaada7b4a25cf6d76a4b7a7e738bba63f6adb35e8. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/TCAGP2213832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc4a6fcfe1226fda94746ea77d5b5d3f431a2b8cb674037beba69dce2da84a57. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCAGY2361730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8799d6d7cbcd4737065bc829737181ce07798dbcb0ab906f4394acb15f0444ea. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/TCAHW2426028.
Trap Baby (feat. Yung Gabe & LoyaltyBGM)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb65e00c716e8ff6bb31eb1b375d803adcad04c865b5a8b337b7661caae2c6a. 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/USUYG1364099.