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 0xfc55de34a0309ff31eaf4fd529e1166a4b90eab3f0d6b0c54c09c569e6b8a981. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e770b57b-b336-42ec-9aaf-638994271a08.json and https://artists.proofprofile.net/proofs/artist/e770b57b-b336-42ec-9aaf-638994271a08.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 0xce812be99bcba1d31d8adf5ef9cbffffdcc04785bc29a807e994d65141b358ce. 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/KRB472302051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b2cd0e80b737f19f647ea4de01f90cef8c4948cfda96768162a8805b9dadbc. 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/KRMIM2231218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc86d9a7eb02d28daad1bab169721a6924cb67292aeeba258a26892b450f7f0. 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/KRMIM2240975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1871d862a55fa5b1c9b01918a07fdcb3f9b4814d194e025f2ab86f6d8147ca4. 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/KRMIM2240976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a2b99893972b192cf361286aab7d739229530740871eef6717f39e359edb0c. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/KRMIM2240978.
Howl (Feat. Yellowmane, Sahtyre, Junoflo, G2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f63806948e9e92394bf3fe7a62a963ce1eca97510ada6ed65b43423d6e56fd. 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/KRMIM2218777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27bacb4b5ae54a8c1935e84de0de4f01902513cb9b5e5f602d85f8a11b3c7b8. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/KRMIM2024197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc8f9f4c4e541c4310626b5df87f27ca8df1dfdbaef0ad8026bdbfaae70ff34. 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/KRMIM2024196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x249332edd710207df4b78fcaf9ed364281a72f6b0393222644a295a23b7bb178. 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/KSB012323701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe3729a0094e6e0dc536b4f51b030b232b08f4416252e3d4acb2ad906ebf37ee. 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/KSB012323702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba908dc5cb5b8e6e848ecdf06c2fbc73f2dfb856cd1c1ec62c69161b833e970. 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/KRMIM2127676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc8f9f4c4e541c4310626b5df87f27ca8df1dfdbaef0ad8026bdbfaae70ff34. 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/KRMIM2024196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27bacb4b5ae54a8c1935e84de0de4f01902513cb9b5e5f602d85f8a11b3c7b8. 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/KRMIM2024197.