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 0x16472f95051305eb11d99206e2c69da7986ccb9d390a01bf24ac7a484d1cc66d. 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/905b40b8-ffdd-44a7-9aa0-96d3b94a1809.json and https://artists.proofprofile.net/proofs/artist/905b40b8-ffdd-44a7-9aa0-96d3b94a1809.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 0x322dc82ec9116aef5fbe87223821371fed2a823ea3735fe26e32a8176f86547b. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:46:56Z), 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/US7VG1509949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60a037a9fdebb130f7f5e6bfaaee30a717e4581c9359fd6167c06f0f053aa7e4. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/US7VG1509950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x839daf73dc11038ce1391b84c4407dd6cef2ab53caa70d1f3b3526b2705d95f3. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:04:47Z), 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/US7VG1509951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf900d1ddfafdf6282d07fdad9d98b1dc6590de325823067104008f7ec23b952d. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/US7VG1509952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x545d0466b205c59c0bb9d88074b7c89194710b643599c5be75b9e7039859b449. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:37:21Z), 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/US7VG1509953.
Royals - Tudo o Que Voce Quiser - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b86a6c535f6c6902eac3f615604e745cdad291eba8ff2248e8e93fd5baae881. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T13:52:30Z), 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/US7VG1509954.
Psycho Killer - Hoje - Gatinha Assanhada - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7de567eb8cf456323de465771141a8fd76c7b9f17a401a941e98e051e9cfcc7d. 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/US7VG1509955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b711f6926ab6aeb545a321f6d95cbaecaafbb547c8d928142213587a8e2708c. 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/QZ5AB1620730.
O Nosso Santo Bateu / I Took a Pill In Ibiza
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0435296a4fbcb481ce524c88882f25da01fd42e3a69e1196a655a2a2964be497. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZ5AB1620733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d6e5807cb3ec6a822287b48d3d68c4d8b56b464e9e416694203e9b86623a55. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T15:17:27Z), 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/QZ5AB1620734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bab03904c5814db2ce0b3322d4898ae51ec3b0e043c06255da232b163444101. Chain 2 (Bitcoin): anchored in block 959003 (2026-07-21T14:44:25Z), 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/QZ5AB1620738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58d2c35795f0142bbcaa53e26cd47003b29ee087e6e97a98718d2b01405a710. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/QZ5AB1620739.
Leo Verão e Daniel Freitas Mashup (Cover)