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 0xcc8e70816ac92ff3cbe7122241e517779fe886e68801bad6aa03e22725919d0e. 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/039d001a-6848-499e-a9ec-1db0cbf0e394.json and https://artists.proofprofile.net/proofs/artist/039d001a-6848-499e-a9ec-1db0cbf0e394.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 0x9c89b089e1aeac390d41ef585393dfc8218aa4a3bfd4fe4798eb63b649250e8a. 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/TCJPM2078100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a0ccce9714905240debd70977f39a29a50ce575b4b956feea8db5a70ba515a0. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/JPM591001389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7c75264f215de33fc31cd611e1a4ffe185ec91c825d4b51a7d4a9bff2fd7f0. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/JPM591001424.
Reflection (feat. Vanity.K, Oichi, XF MENEW & OHZKEY)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd30bda6052226da16ca8cf407ae811e4dbcd25bdd2e8d4f942f844df1ae2dfb8. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/TCJPR2238832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff9bd23dcb4544bd71ecb2293bbdce1805e0b5bc368fbd1b18f83f54d480afd. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCJPY2343715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ff9de30eefeb15fbe316099a1447c09454a00e3f0cfecb05c060e1c540da1d8. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/JPM591001645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4469f02e4a6c262f33ae5f5be64fb63fcd03b798dfc41e6d59f6429f84c51bd8. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-17T03:42:41Z), 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/JPM591001646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7c75264f215de33fc31cd611e1a4ffe185ec91c825d4b51a7d4a9bff2fd7f0. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-17T03:34:17Z), 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/JPM591001424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b6216d1a29dc6312fbdc46710cde96e81bebfe9508a5ba14f60cab5312409b. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/JPM591001648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3483ba02001338f75219c63f9a438d8879d5102da1cd24dbb2290a8c49cfac3e. 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/JPM591001593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4469f02e4a6c262f33ae5f5be64fb63fcd03b798dfc41e6d59f6429f84c51bd8. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/JPM591001646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a0ccce9714905240debd70977f39a29a50ce575b4b956feea8db5a70ba515a0. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/JPM591001389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7c75264f215de33fc31cd611e1a4ffe185ec91c825d4b51a7d4a9bff2fd7f0. 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/JPM591001424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd30bda6052226da16ca8cf407ae811e4dbcd25bdd2e8d4f942f844df1ae2dfb8. 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/TCJPR2238832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c89b089e1aeac390d41ef585393dfc8218aa4a3bfd4fe4798eb63b649250e8a. 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/TCJPM2078100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd032c9f39e36f4b8fd8b880f35ecd089f46c82c120fd592dfe14aeaf87ce97a9. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/TCJPI2531532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd032c9f39e36f4b8fd8b880f35ecd089f46c82c120fd592dfe14aeaf87ce97a9. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/TCJPI2531532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe84ec05e1f994dee598d06e0f83f14369f13ae22e849418bffb128c78d9d7b91. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/TCJPI2551430.
Through The Rain (feat. XF MENEW & Vanity.K)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1f9224512bb6933bbf696c1f322dc70283bcd4a19d51148bdcd2ce439715113. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/TCJPI2594438.
Manhattan Records® Presents JAPANESE HIP HOP Selection 2022
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc4229aed771cfc35d593240abb34f80970ac0454556c32a956dab2cb10d4e7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPM591001613.