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 0x3956b431d464a4439b51a6d69d8a9e4f5a24b20b57f19c335ccfb11081afb3e1. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/706f2fe0-9bd2-4557-a1d3-7283df0438d9.json and https://artists.proofprofile.net/proofs/artist/706f2fe0-9bd2-4557-a1d3-7283df0438d9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ma Baddi Shoufak (I Don't Want To See You)
You Don't Dream of Me (Ma Btehlam Fiyyi)
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 0x3d254fcc75b70c596c42f5be5250a4e43523fe37b4a739eeff841d475d91b60d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QT3FG2584272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x074e8f934f6f0dd1d2e6fafaed0bc90d3d3815d1a7401ccb0158c931ad7cf3a1. 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/QT3FG2587483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb3c621cba19677727299545293a79b2e45a84cb43abb36589f3af6c59d6665e. 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/QT3FG2585928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x843d04f100b39c235495e32273a3ab811c5b138b8c26e44a874c4be44d8c3706. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QT3FH2594291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdede6cc2186abff2666cc11217492059fb4876451ddf6f2e5125bd6fd25ae367. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:38:10Z), 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/QT3FH2589810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x895df321cbf05a3457f3ae3e9ed0ab7a67cb734bd155ff6ee0344ec3fc2470a0. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QT3FE2556311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc34e4fd3ef2f5a566ebaef7f2e6da377830d6299e1f99987e80b63070bf6f8df. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QT6E92537148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56fe0c3e7f4f203722d54752a90d407062a3fd2dc2e5898497960115cc682416. 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/QT6E82541943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b615ce8fe1e1786c287a4ffcc510af98d3d244cdb27c22158910268bd6accf2. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QT6E92543822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5cd7bf114a9f5f865092e498a2df40669c43a37f8b7c8188a0cc461f40ea89b. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:08:55Z), 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/QT3FE2556412.