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 0xd4da8e4d8e9431b2ab58c8bcbbb8b8254aa612afd7888e7a884444e77f4fce47. 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/de9327a6-2531-4aa8-a702-e0348e93bfe1.json and https://artists.proofprofile.net/proofs/artist/de9327a6-2531-4aa8-a702-e0348e93bfe1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tomar Chaya (Ahmed Shakib & Tasbir Wolvez Lofi Remix)
Tomar Chaya - Ahmed Shakib & Tasbir Wolvez Lofi Remix
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 0x20af9644a01fc9d88f5dbc1c606f2a0d5a7e919275eb546af3dac93c0ec50c8d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZFZ42289591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x082df9986caa89016cd4ea6c905ea8ba44ef0e560b0a6ec5867d870b3abf2a57. 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/AUXN22195078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd21e1e6701293d7e0178783a168763b1151ca7829f0092e3551a28b98d6dc7db. 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/USCGH2208249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x333c26039652749fdf2bed86b7112fc735badaa4427379d7216bc8d4a18dfdbd. 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/FRX282431400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b41b0a1ba11534401b22eacd552b8c31f8f8d178713f6773d982d8c912a294d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DGA052392068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6186ad2143c810df92bc209db0c8624497016836b306f72667b3093928cce999. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZN882175100.