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 0x3d637a1ca5d83c96c9625209212a45d791b8362e96b04e0833c956106555c0b0. 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/79b8d8bb-d468-4f7d-8ead-f4c50d326bb0.json and https://artists.proofprofile.net/proofs/artist/79b8d8bb-d468-4f7d-8ead-f4c50d326bb0.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 0x0577e394d1771c899a12d7ccf9654580244e55b107b3c1791990e6b492bcb341. 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/USUYG1561897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f3669e9e91cc91f70c47f345e91b822164a72a4817c99cadeff78941191cc8. 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/USUYG1564655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x886629045df3350c2eea7852acbead463a9e4d7a1e5fc2a82de2062cbfc0832a. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USUYG1563939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c76ae02721a7be54c43942e7c8bf02cb45af769535821d31b835ea81c9c626. 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/USUYG1564657.
What's The Difference (feat. Yhung T.O.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x004f2e6f66193f76b244a3b892f5fb901c1c426eea01e4693e68dda7ca3e7d0a. 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/USUYG1564659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b087e1873cc36b97a712a5b09884618dc0f16036bdc698b213fc74d87c79026. 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/USUYG1564660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e798c2b2b3751013183584c972b57485192fdfb3aa29f961d0873b7bc64270c. 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/USUYG1564666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc5d50d4404d9d87a1e9b674f1665a9b4d12ac66362070c3cca8215679a81583. 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/USUYG1515648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b3d9ce481b20bf77abb769625ab3601f85034611e2ec06e692d49c4e382d387. 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/USUYG1515649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e362e8d7de4b6b5d3d088437d084ff71e4313e4fa69cb9a979a1ac8c5a739f1. 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/USUYG1515652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16f61c2bd295197645f3a54d32f8fd64ce175d5be534959608645949c8a3f098. 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/USUYG1504395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fefa10216f14e434967481a28361fefe34d5d6a76a07dc819dfba6efe0589d8. 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/USUYG1252268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23f267f20f2b451ae380d7321374ce7a4f9ee8d60ab2feb8c1720d8a8e98d4a2. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USUYG1252285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x030ba1f2e8b954f6db83c6f8d5383a288ffdcb7db56154220b76c847fda6d581. 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/USUYG1252269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb276fc9aad56c17fb8e117c16d50d832014ab594e57b0e60b5eeb796ea458a30. 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/USUYG1252270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x873ddd5d00b1a9bd0decdba5b90b0f6abf21b5a63d9e1830ae0cd49cf27350ff. 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/USUYG1252284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd757ea7954b013083b56cc94f59429ccbca93fb445f4fff0d1fbf031f24d070c. 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/USUYG1252271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e903e82f4b47307c05f12abbe4edb81546531cad07bed5f3beb8bfa231cfb0c. 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/USUYG1252266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e8d5be484d26ec4646440ad8cc7405cb5b2a192b012ed28996799ef08462805. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USUYG1457497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3741d8ce83f1f051e0681a23c56d7f09446343caab7d17f2536d274a1ba85ea. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USUYG1457773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b389471bd197ce2bfe206acd50d4743dabb2e49a4a70296e14730b85bfa39e. 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/USUYG1465216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ebc9bfb3fe84cc2053c00537f032ea8ea9435bdfc2be34c46abc654688939f0. 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/USUYG1465217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43ece88fb3b120f7ada5883b37de24c3d2337e8c4a8b4e1d2a31afccc5bd6020. 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/USUYG1465218.
Vice City (feat. Hit-Town & Jay Worthy) - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab6031e1ee1ac0072e5d6129add502d4ec48671d736a1b4b05c458c6cf3e2345. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/USUYG1464782.
Vice City (feat. Hit-Town & Jay Worthy) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab6031e1ee1ac0072e5d6129add502d4ec48671d736a1b4b05c458c6cf3e2345. 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/USUYG1464782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2df4dffbc956e09d90e7dbe6b68fd1d9dbb985b9a917db63ccc8a526319b5ac. 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/USLD91713746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad8754d680cc727fc3391528455355778cb93088c4f06119b8762f8c5b2d8e9a. 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/USLD91713750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaebed899045fb60da31de8f5734d715acb7fab7367e08da17ed3a78f8c90a491. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USLD91713751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8814494c75172c924596f089442ee5523b266b2c1e87a85e9143a5fb34aa8283. 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/USUYG1328943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3741d8ce83f1f051e0681a23c56d7f09446343caab7d17f2536d274a1ba85ea. 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/USUYG1457773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a67075cd5d06e6458832d962ba7455a02f8f48f7c55fbf049958e142abc7c7c. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USUYG1265981.
True To This (feat. Hit-Town & YeloHill)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea7b03e522a3471dfa44d733538b29b6941f38fbc2b7e1ba3766d5cffb74d14. 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/USUYG1303603.
BOP (Been On Point) [feat. YeloHill & Hit-Town]