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 0xa3073e967a0f56e17d23da2c862d1d51c57a6b85539f0ae3a06010d122051ee9. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/741aecf3-5dc9-48cf-93aa-bd347a3921ef.json and https://artists.proofprofile.net/proofs/artist/741aecf3-5dc9-48cf-93aa-bd347a3921ef.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 0xe8e1e7221a88cf8402d53ab48293bf330c909e5d62a9dbba8173078045777ff7. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/TCAIS2475094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f3cbace427fad4d08c009e85207a2d10fc2568c0cea765103f8ace4b346e20b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TCAJE2541167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee845fc32f1a70d9a1c7a9fc70beb2108a8a24499db1cc19fd6e58a405a208a6. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/TCAJE2541190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebfc15d395899f72d9403ecc04f750860b273ac54dfd537b614537f4bed4beae. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TCAHT2331526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f7c4441eb9a3c613b877216a89ce0e3671e0f3f014b715bb801f30453ca885f. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/TCAJE2541275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbec63f1a88b4e3cef19f48fea30e83334635d42dc549899d073a2db76416284. 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/TCAJE2541305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31eb80fdda97fa63831445d98e0c56991cd3f6ef969b6fa9458dceac09c6b51e. 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/TCAJE2541437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa931006622d98f556d7723ba53becbbb147fc65f4d40996ebe90e419ad965faa. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/TCAJE2541468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd49faae71012d0cc6a61a701fa8dd74c80eb9e3be0d8e2a60b59509fd657a2b6. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/TCAJE2541537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0074d9efec1d47cc6dfaa727dada0223295434d45c2029b2bcb704db0592edf7. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/TCAJE2541570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f70e7864b349acf4f5ed93f2839e5628081ee01fa18af8b4335ee46f2af7dd9. 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/TCAJE2541647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20ad34cc20c581183006f1ca91c30b81e5eca1eebce93426f572bdae988f35f5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TCAJE2541707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb822f196e381ad35c5ff1db647db5a6acd7486000cf00ef35bdace6e3b8176d6. 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/TCAJE2541754.
Heal My Soul (feat. Govenor Reiss & Gifted da Flamethrowa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb311084ac2df41982aa6bf71b7bed17104413b0e65be9ee2cf58bbce0134385. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/USHM21508171.