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 0x0a266f3a3854e070fdccc90a8548241a757bc3bf1f43ef83a4bea85496f6c5fd. 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/e39e5f34-c395-4159-bdf8-b064f402ab50.json and https://artists.proofprofile.net/proofs/artist/e39e5f34-c395-4159-bdf8-b064f402ab50.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
เปียโนกับปลายนิ้ว
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 0x1f8f2442e32d82f1f151bea9f1739f03dabba43d7ef0ddbeb2c77305ecb2dcbf. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/THG010801131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a8993311f973b457095fcf83de4d5d290159d8ef53a4d4e7ed64bb000412ed. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/THG010801136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e57beba0e90b659160319d85908b5ce16e6dff0511873ac9b3a4e03b8fbc53d. 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/THG010801129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0883c9e5e578776d0b97b84bc375c4794ea36814a3f10aec55f7e3fa2d50ba53. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:00:39Z), 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/THG010801485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ded0b4e1a011fd4dc6982a1ed33d4781e10122328663a0e839d5714c55fb2b. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/THG010801489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c0b13867240b18c40e0c72e4c794745c0c757d6a45eeab1cf798e10c7ec8b31. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/THG010801488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67fe92b2ebe3929d9a0b4f58f5751be0bdbf0f5e2b4828b104a2268ff0924a82. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/THG010801501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1f89fe2875bc8bda24db763d2f377cbc3f2e5258a51c1c2f373c1f41eade5a9. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/THG010801498.
รุนแรงเหลือเกิน
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c91cf530b04752be4e97fb0616c933698abd7126c8eeb5d11b583b01dd190ad. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:28:41Z), 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/THG010801500.