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 0xcc165869e67b9c8296a1e6d1f3a0be0f70270fb638614cb3ec3d6bf476ecfb85. 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/163b3fdb-0d64-46e5-8bc2-3c30f20f0c61.json and https://artists.proofprofile.net/proofs/artist/163b3fdb-0d64-46e5-8bc2-3c30f20f0c61.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 0xe9e9e6f97b37e14fdf253739374b0f69ca5054e7da884f3cc14da7a8c3bd0d9c. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/DGA072199777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1d3bbf67111cf3e3425e2f5ac70fa2ef574022ba4272bd2906bd4bb598b53d9. 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/FRX452288020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14ec4d2f19cdf000994a6bc625da9bb140a548379366724e71fdd5616f26fc70. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:44:53Z), 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/QZWDW2208934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb092fdf078dc263aa036c5ad711373c0791f1d2fda482b81e5311a7195d9ac33. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/VNA0M1929988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dbe11f4fab277ade57054b6d1eb1443549df9e0f155df2eef6691b361343ac4. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:33:26Z), 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/DGA072322889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9888602460988926498a0fcd0b90b382bdf53bcd2cfff1a1cc42f164c6e272f2. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/VNA0M1932268.
Buồn Hay Vui (feat. RPT MCK, Obito, Ronboogz & Boyzed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d063f2a8d9ad0d73eadb1175447364f52bd6d489ab1f32e171fc4149676fe44. 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/FRX282410651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82c66dd5e29f922ba3aef22d2d33f029f56af3a126953b9d7431b76a6791ac16. 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/VNA0M1934389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ca7f4974f11f49e4321ab30fa04f034dcacde1c35878bab4c83e9847f304bb. 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/VNA0R2400287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96134cfbe421aa59c90f31777f941985321d01bccee3d4abdce563bd524bffd4. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/VNA0R2400775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb46c11d65ce68667d5183f7527d978961c507c21b6083c45b1400cac8759893d. 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/VNA0R2400776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200d75ec3b66c35ac6aaaa8ea05eb626231baad2b2eec2ec7d4f1267fed30fef. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/VNA0R2400777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010f82c95e21b881ff40989807a293e5563dea92200fb35d04a8cb0b926e7678. 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/VNA0R2400778.
NBA (Never Broke Again) (feat. Hustlang Heily)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf98ce12d86b4904c451ffed50f26963f27748b26f19a2a4e372f2420dd0f3c. 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/VNA0R2400779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bc075a5be67bcde14d255432ad42797ac4f6ded24180f9093d07762b0cdba53. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/VNA112100199.
Mdali (feat. Brandon Dhludhlu, Shama, V.Soul) - Original
Mdali (feat. Brandon Dhludhlu, Shama, V.Soul)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb64ce1638f2c0bef8612ac632098deed9a6c1287991d5d1382419bee17001a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ZA56E2315472.
Mdali (feat. Brandon Dhludhlu, Shama, V.Soul) - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f7d0ff861d9404456e7b46f139ecb4f693c534381511c98d650a9d207b4de0. 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/ZA56E2315473.
HOAN HÔ (feat. Rhymastic, VSOUL & B-Wine)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d6cf7232211494033a6ca42dbd7b3aa20b4fe00ce421569bf1e8c87264d15ad. 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/VNA112200066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc35a27b205a3a464cee60b159bf9f0b0b04df95e5840daeaac1654c0cff984. 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/SGUM72000102.