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 0x03fcc6951757c4fa013f8cdd8c2d80985f407ae737e696600168a616e5345603. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/806814e2-eccd-4698-8b26-8ce8374a87d9.json and https://artists.proofprofile.net/proofs/artist/806814e2-eccd-4698-8b26-8ce8374a87d9.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 0x02648429457048f8654bf4861268db117830b24a5c46402ff25a2a0f553adca8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ESA011906006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d9f852d827e5c56dd7323d0296ce25a4048df77ffe377dfdf1f577585a1277. 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/ESA011920406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9605195243ddd27b513d1961b3a386422a9dd1489a46a4ad0ba7be8d12aaeae. 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/ESA011842226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e83812b575eff2da1f6f36bfc4a79ead875c6471a3c9c029268818aeb89f6c9. 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/ESA011982604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ba00709359f21fe66d4ce20840beb4cf9bc0f2ff53588ad5dabc48ff353bc73. 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/ESA012065141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x783d9989d90977e4994e0b31f1055c12df9a3879d80972634c049845eb1891c8. 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/ESA012035187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2794155db260834214a3c93eadd1c51455206244b9aaee70a3dfc07702504460. 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/ESA012065143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa3bb732c766f61a9f52a29f940b99f274844028412828a7e080258aa65b977. 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/ESA012065145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf004be6594a3349036afb0afe208aafc5554ea216b6db15d18e04dd7638ab472. 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/ESA012014333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d1c1a4b5634b707386acefbb27f586194c120fce8e36b9edb0aad838fd49583. 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/ESA012065151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6bec5a4c6117b3d2a79526d1175a19973c92ad93012ee53487e3cb4aba13ba. 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/ESA012065153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x584cb42085e379075175ccd30cf77bd0dbf4404021ca2a25a386102c742a56c2. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ESA012100704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7de15feaf50aa9105f097718b0c547cd3d83d76a500e205dbc1ff70c8335b18b. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/ESA012132055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc52178c3a61a28bdae6b516186bbb3ca566037f438eeba5f949c42cf48662c1b. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/ESA012119811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc98f72e1c5fca75d006cdea5dbefdd8422e281dd50474624929e8d1118b1f4f4. 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/ESA011781225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca9ac8b9e1adfeefbb4fdf1957b2cb55212cc4923fe22519a2eff22d1c9af567. 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/ESA011685530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd525f84eaf899a8184c8135a2ce3cb4287754c816dc287d2c00bbf1b6f3b949. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US39N2300858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9533dd349afd99f1991f58757b38cceb8e85e7841886d0ab38d5958313a2fd6. 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/US39N2309383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c97c0091259bd5fee8190a7aaae9acaaee4501b04ee515d513cf706c1aed949. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:54:14Z), 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/US38Y2559514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c2ff0d067d2bf43397830b854579e115fdeb9e2f675ff55d95d3f5125cf993. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:59:24Z), 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/US38Y2559515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1205735ef879f5c6dc9e94d865c04479f999d0766cba0d5d69d8e45634c20025. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ZZOPM2105831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf054323ea4747734c312dcaebed4546214dd94751b884f422352b5facb12fb01. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ESA011835941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf054323ea4747734c312dcaebed4546214dd94751b884f422352b5facb12fb01. 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/ESA011835941.
Pop Pa' Tu Crush (feat. Only, Sesentay6 & Hens y Delgao)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0860a4408fd54dc88acdd998b594cc18e8e03b91c143432c9e0fa59db3483011. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ESA011931873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbd512f582e64aa5bf23dddd8a19b1eac3982707b742ab4ed0d56b5d6b0240d7. 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/ESA011823027.