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 0x8f7fef7d9b882d7b08904478ee1f141b012ff2a3e8e3ff68d768e1470619e47d. 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/50b6192b-eb7f-4342-a366-e25b04810b09.json and https://artists.proofprofile.net/proofs/artist/50b6192b-eb7f-4342-a366-e25b04810b09.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Namalsk (Original Game Ambient 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 0x0d3a782182151f262a4e241b95a6c716da554073f992945cf3446ac4dc4500c3. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QZNWY2064892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a7ff456dd90f06ececce223cfa07b34ddbc5e58d574e2f4d4016a8c9c7e4209. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/QZNWY2064894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf8ee7718a08b029f54f5231b3243fb4a53db66f8887704f449043cbc85e612d. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZNWY2064895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd11382e90c009efa54d408c569af7f06503d657af6d734c5d8bd687be7c0cb8. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/QZNWY2064897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e1c591988f9e5f24c98f58c5ca696fd9c3e7bdec1023594e4b8a6cbb3ed9b5. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZNWY2064898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa42bcc19850c2bb3b2277762f8a5f30cc4cc19abb9ce8be160c45696a635bab8. Chain 2 (Bitcoin): anchored in block 957763 (2026-07-12T22:01:25Z), 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/QZNWY2064899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b9f7a8276fe2125aa5e29f4d6668ecad68566e38c95371a8b16a50f4384968. 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/QZNWY2064900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x222d3994139040386526b5f9d5f3b9e35bc3397d25340c04217f6d703a2f9998. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/QZNWY2064901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc1c52fb7c47dd246d35bc25067c1c140e2d36a44bef8f29eef8558c04e6518. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZNWY2064902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e8d0835d7b9c7373536fab5ae6e94e49425663c14455a09dee3bad67f66289e. 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/QZNWY2064903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8955e01d0306b08c0ad8eccca0a1b0024a9ecf72658ff9639c49f9cb253afd8d. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/QZNWY2064904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae011c76318a1fb479213cf07fdff773750135d5f8c31015f5a562322e7e27e3. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZNWY2064905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bf4b976f8e64e934ccd571b43dfd73a5efcacac5eee095b5b788244b4c4002e. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZNWY2064906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc476ccd959704fc1c9fa72870d1593157a3a401c548c763102b48d42379a21b9. 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/QZNWY2064907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed231acb703168501b488860e989d9d0f7aeb5f1db7bbf3adad84861dcfc8da. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/QZNWY2064908.
Namalsk Phoenix (Original Game Ambient Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd97825a6a699c470a06bb231fe5179c0eb933efd187512d6763d5a8d36b51c9. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZNWV2246303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703df9661077bd19d3aae89c9632e7b2d00e0a6c9b9f85ed9d061e31a31cc10c. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZNWV2246305.
The Official SourSweet Soundtrack (Streamer Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e0ce0f754c86d96044ba11c64084eca0bfe6330dce2fa4d6614f8b9e55b4c57. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZWFX2437248.