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 0x4c6afff1fc7a30f166119131a0a20cc66cdbc0246dcac20eaa5d1fef47e1bba0. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eb7a207a-25d5-4901-862d-bd47f18a86d5.json and https://artists.proofprofile.net/proofs/artist/eb7a207a-25d5-4901-862d-bd47f18a86d5.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 0xc4565d50c3f9776acf1d83f2da2c3a6eb3dc9f763f68398b7b8cae714ed143e9. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QZDA41832175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd3c7f70a35ced86865c4a31afcafc8cf80a1d777e0142f5765477850ee838a2. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-22T02:29:08Z), 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/QZDA41832176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb51504431b7ed392bd501870e5c3956e1ad70e641bacffa86b423898b6763ff9. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:06:20Z), 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/QZDA41832178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe13f93e1e1af915deeeeefddd9010166e0557460e85de73a61dd9282bdfef6. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QZDA41832181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x147b4ad0ce291fb3cd79d9bbfd2f882f20398e58bb52cf1b1e3823ab6009c416. 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/QZTB22211178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb733f69745f960ce0cecc68e43caae0c6495d279ecef341e7b1f1386e9efc281. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T19:16:54Z), 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/QZDA82466349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ca8efc3efed6441c6ab404ae9331c72099691df32ed4539f27a8dc2083250a. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:04:31Z), 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/QZNWW2524538.
Babadan Oğula Duvar Şarkıları Enstrümantal
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc83d8c57e80e1d1d352c4f27d56c7d53fa13b3f4e4442b880892c55097883e48. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TR4021403359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b2ffcfdecc6e479615e093435d79600f660fea9031e537c1326ce349f3bcbdc. 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/TR4021403363.