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 0xe6d1db36651cbd3fd456e36d9a183e6a4672a882668eb6385427961ac7bdb650. 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/ec6e8579-3802-4f60-b8bf-14b67f15ea33.json and https://artists.proofprofile.net/proofs/artist/ec6e8579-3802-4f60-b8bf-14b67f15ea33.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 0x62590eb25aa49954fd2110f179e87fb7d8f59537ddac00c6425baf195b9028b1. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T04:09:53Z), 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/TCADQ1817781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3d1598e19c51c898cfd2ec81f7e32a36b545e063955b513261ac126c732546f. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T02:11:22Z), 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/QZHN32056938.
MONTERO (Call Me By Your Name) [feat. Taylor Barber]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45810223136e806eea6fcc0a24a0485507c22eaedd23f74eadbd18e3e62c6a8c. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:29:05Z), 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/QZDA62003231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f4af70e20f6745b1b1790c0b163b09e5b1bec9cb9184184b4a9ecdfb9f8a29. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZPLR2143416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29533712cb56b4c5eb130046e358e9cbdec7089d1fbf7d55496cfc1793b71af1. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/QZPLR2143419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb2fb6aec4c63f527a6141d78bd49049424a29271860dc13fbb7f37580333720. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZPLR2143420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf05341ca8b12eafad7821caa50fdd6f48f36e69070b563a84b66f52a4d9890a6. 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/QZPLR2143421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82029134967f441c5c612fa09ba92a11d7ea0d285181b3f132571233466537f7. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/FRX872366270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f934d15000d5684f765362b931ae9b7b3f37a088e40fd67423f6d93b193d8b. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/DGA082341138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa137c7263e008d43a694a81da604371dad37a41ef62e2ba95003bb5c0004abe9. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZWFM2426523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf65b7af57a83ebc4268e59e804ac95bc1b22ae405f25c65e30342f71eaee9d71. 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/QZWFM2426522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e75c71e6d1f2fe694e2449d7f63b6670e63dd9aa3f26aa8ba29086c4c0a2094. 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/QZTB62413335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa137c7263e008d43a694a81da604371dad37a41ef62e2ba95003bb5c0004abe9. 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/QZWFM2426523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x230979e01514f9716034d06fae49c9cafdb5053ea3abc881c592260ab4095ef1. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/GBRKQ2590472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f6f6759c6841a0d4c8980f04e63716474066aa4488bcdd7cc08477513c43fe5. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:42:17Z), 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/QZZEB2457357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf65b7af57a83ebc4268e59e804ac95bc1b22ae405f25c65e30342f71eaee9d71. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZWFM2426522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e75c71e6d1f2fe694e2449d7f63b6670e63dd9aa3f26aa8ba29086c4c0a2094. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZTB62413335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa137c7263e008d43a694a81da604371dad37a41ef62e2ba95003bb5c0004abe9. 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/QZWFM2426523.