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 0x35ac3e607e5f9cab73e7fa40f3052e65c6f14e9a7b0b433717c24d1c1a05ea0c. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4b9d817d-62a0-4b05-92c3-e69887aef151.json and https://artists.proofprofile.net/proofs/artist/4b9d817d-62a0-4b05-92c3-e69887aef151.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Omorshongi (Original Motion Picture Soundtrack)
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 0x147305189a3c1e10c86147fcf4f1c7db497795a1ac0b54bb4a9d44c0d3de9564. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/INZ031417866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3648c8525645b0d9ca170624cea3120bd5cff5634a4ab8f41d79f1bab5b14290. 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/INZ031417867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fed6350e8cbc4cd674287c91004b3d66331cbd9d49cbce144536036c88d47ee. 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/INZ031417868.
Purono Premer Poddo - Duet - From "Omorshongi"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5646dc79687223af21e1706da4c8ac9f02dd72fcad194779ecb9cd53d025df4f. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/INZ031417869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde2c765f804b72eccf8abc27856db94705a49d8153802ada6a0f641b76ad190. 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/INZ031417870.
Lovers Beyond Realms - From "Omorshongi"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fee8c2cf8f0ef000c89d86854086bad815f8aefccdb82e0d3d3549f0fb03852. 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/INZ031417871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b166bb45e38fb6325b4a7fd6c954a5169bba7ce984ae732ddcda87abd15d0a. 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/INZ031417872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8778da51b4380014750336059d9001a696057488f9e15bb13415409fd4fc34c0. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/QZPJ32175964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b5c97143905eafa8fdbb025ca4116435e9546c64ea069e3992b07f3034f406. 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/USE831599537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf28333a5d6ea7e811f4846fe82edd334ffbf07d961c7d6a015327d42b2992907. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/USE830954878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x125e67b181d161b580acc6065fc57bc0891789aee21399af383c780b950b5ebc. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/QZGWW1944761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x967a43e52517e1f2c44c85a1d9398f603687441e48cde0fb793e20e77c2329f4. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/TCAIO2438245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eb16502a55a1a3637aab8f2c14face6b88610616013a4881b2fead05c4d14d9. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/TCAIK2496422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd064d87b98b4ac8a910013243c1158cf94fc2da7e6a36aa9ed662a5d1cae1f. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QZPJ32276232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b5c97143905eafa8fdbb025ca4116435e9546c64ea069e3992b07f3034f406. 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/USE831599537.
Shape Of You / Sheila Ki Jawani / Urvashi Urvashi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e8187934428d5caba4f2710957cfceed61ef9626c5df609636ee5039ccf4c0. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QZPJ32115521.
Dakbaksho (Original Motion Picture Soundtrack)