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 0xb2a80818c42a9ac4c3f6f0695b6b3581bb7983fe0bca597660f32629e665dda7. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b1e89fbd-d171-4eb2-a4c8-402b589c0064.json and https://artists.proofprofile.net/proofs/artist/b1e89fbd-d171-4eb2-a4c8-402b589c0064.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 0x005287ec5ae7b211cfdf703810d1ff4e5b4d38d86fa094b0a759cf0eaa47208f. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:19:59Z), 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/QZNWX2067271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x979de72678d41b41fa1e8b462725e54013757e04b06ac5b3bf85b86e9718c583. 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/QZNWX2087581.
THR / Dedos de Mantequilla - Ellos ni se imaginan.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48cb0ccc24ca71f6e41f806e56313371ca17761de5d38d577160a618c9fef3e1. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/QZNWY2016506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6bff025076cabc38d218feca10969547fd204050b3c127c923a3c115d939f55. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/QZDA42190091.
Shaolin Cats / Monks (Ace Hitter & Bexer)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe58fad6fb73ace0091e4ebca17f2f07acae586a63d7967a396cf9675caad6d7f. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/QZHN62185096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b706315766b64382a4e9136db8c068752554557be927ec110285374e2fc1c0b. 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/QZK6J2143627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e763f031c0454ee8184eb7834fa7cd14fd30bf2f84495799ccfd70ab6980194. 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/QZNWS2152904.
One Inch Punch. (Primero Company & MSECO)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d2f85f234af7dddc46c787897196f3375fd63abc0cc18b3a3890b4b9f4ac0f. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:20:25Z), 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/QZNWS2152905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0af08a1b2defe53241837885744fa266f15c02942e5bed1cfc2c79278546007b. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZNWS2152907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2001050ba90cde6aae072ab47058aa49e14cd09d52630443164e5e1e3f903fbc. 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/QZHN72276630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55094721527cfc41380631da585bb6ff34a36b57210ca58ec71db78dc63e605a. 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/QZNWS2294826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee8a927cdb437e44f6060274d4653d47ad53e9c7802ef5ddb43244e5ca4566a8. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:16:05Z), 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/QZNWZ2256366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ddc65cbcbc9a07f11a29ebbbfeb1cf28f2a15391535c451b1ee2a82ee12d47d. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:47:41Z), 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/QZFYZ2347580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa552555c0d2fdc596205972dce8b8e2bb591d429cf5e45a009a79768a0fed05e. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/QZMEM2374054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0795c310c650b8da5d694d2086d01f5506f0c84e64903df7436faaf68daf263c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZPLR2463570.