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 0xbc71c4c1b16997e53930c461a3b4ff0d21e17e1fb25ffbff9ea047f52f3e1622. Chain 2 (Bitcoin): anchored in block 953678 (2026-06-14T19:23:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/628b51a0-4160-415b-9be9-7e5517673cb6.json and https://artists.proofprofile.net/proofs/artist/628b51a0-4160-415b-9be9-7e5517673cb6.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 0x5adb1de8fa484d23f5ab155c19378ccda6f41c2b750ac840250b886f8d5e873a. 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/QZFZ22446382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac0a58ed11652be69bff5b01553379249281384e12b0db63909a731d3ec05f6. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:29:51Z), 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/QZFYY2494490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ddf1eaad888f32d714da8e53314a05e74df3efe01d3cac5a8c0f4b088c01c88. 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/QZFYZ2409976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b60a193d2e7cd94ffef0e7ce833c15bb22595cba3bd66427d8fda5cd0fbd91. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:53:32Z), 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/QZWFR2361304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aceb910778a5c59a6dbe4e36562498c9ae04fdb46b370aab6247c66a50429a1. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/QZFZ22446383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2793f38ae1ef6f76c5a7442ce912ba65df7eacc35ef5c624f1b414095d4a2f4c. 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/QZFYZ2401877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x539238e067169cf7311f2720f55f3ab1ca1667e6344f8d94f875acf62f61122c. 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/QZFZ22446386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc68e40ac158ba30a6f4d724c26b104a8d5aa8906ef92c36b8e523b7e4e9fb923. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZZ792489630.
A Christmas Fucking Miracle (15 Covers and 15 Originals by the New Wave of Nu Metal)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4a131ba1b4f779dbeaa6490b5a875e5b1fa04c8aaf85c53648e0e9b9e56e269. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCAJE2528800.