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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x767d4ad32c1501555a7c31009a48e7b49088a98c7dd3833b749e526ae8f9bc56. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3f0ef27c-295a-4961-8903-166324f62076.json and https://artists.proofprofile.net/proofs/artist/3f0ef27c-295a-4961-8903-166324f62076.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d7d716e6b208181cbd35bcb73648c9e92549b61fb2a652aafefcc0430f98f25. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USA2P2344679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea28eca918aefe9fbf3ad258bd9c4af76734052c7cb2a3af98e797b70b3644c. 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/QZFZ62543807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7df9a07797c46adc442a32f3ed2a1312cdff661b2a109514486a83717f76e9a9. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QZFZ62543808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a236192aa47049c60a39f39f3a7280927d2c5d23bc01b24079e2bb5499e06f. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/QZFZ62543809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52bc8d4c849a3fb176da328f5c8dbdb546463aebb4ef13cd9396d0166af2d0f1. 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/QZFZ62543811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcabf3f684e7e93ca180e45a6e8b144ad480ae0fd478e8ad5d27903f0caba726. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/QZFZ62543812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e6e4929f3d9e0f212f2f2f2fcd6b791d9d7f0f11ca1e34d9621debf206f537. 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/QZFZ62543813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e178017444a4e8b1d6c761c8aa7410b4c340486ce37ecd73a8038a2da15696a. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZFZ62543815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdffa015cfad239272f91983db716baa4b2cbd6233e2f3824f9da08922f631c6b. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/QZFZ62543816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf66f19d0828fafc92cb97db23f55915c6da0b1cbdbd3fbf49b041de532c60aa. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USA2P2476624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x559eaa394293026b0d0c3f82dee3a4c84b2d22a797d21411392018cfb88d144f. 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/USA2P2265872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd5659ff0bb93eae09e497869228f4aba65ef19d3e2e1b47090df1393275a58f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USA2P2234242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7597b9f780b165114d9e571e96d56cf1888725ee1a32ce717dafefb6570339d7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NLRD52024547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb8b9d2505785de5c62177d6c8dc69c12b5fc7a78b5ebdcb643dc3b42820aae. 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/NLRD52024522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c77bf3657935e53b9d3a58cb158fcc63e40510f110cb7b55241797865ed030a. 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/NLK2K2000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66adaaa369ef21bc6f6e4e5c1ba59eaab615048bcae491a669273c91599e13b0. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/NLK2K2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0819bf8b5dace4ee32524562b74f1a05aab940f29036bdc36d9e185dd7dc29a. 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/NLK2K2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c806098a24aadb3dadda8b72be43965e60cd6fcfcaee963723af26464aa5dc1. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/NLK2K1900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfebf15d4157cd551343b153408f03bb72db25d961a60a882a57dd0a954b2974. 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/NLK2K1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e0c28cacc9bbe1edea9193523b805ea9f91df2761473503d857c3d1953615a3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NLK2K1600015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e283ebe2e1adbf170d259bf106968f1dfd68be91a16d2283bf868d79b72c585. 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/NLK2K1600014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf8f05f42726c5a184c7d1d36f36400af4c2f0a41948b8fdaeb4f0d1e5a8f743. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/NLK2K1600013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ba61a4b1fd8365b9fc80ab98177289714bf8b2c5bff59418a73149737e9a72b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/NLK2K1600011.
Don't Like Them (feat. Jowy Rosé & Rasta G)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34b61a04e71cf179716fb9322865344d0ed6510f9c85e9de2033afc5f766721e. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/NLK2K1600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6acb5917ac0824a2f2639a0afd4fa6874bf0e4711eadfc506af6ea6460639bc9. 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/QMFME2413466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb585cd4bbeabbff610ddcf8f50b1c810414e19e378b2da07d1d1bd2dbf30143d. 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/QMFME2413458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51ac11486107199d1d64e1b700e000a9be12f4cb3078d3a1cca6af245749e103. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMDA62416168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90bc2155b31c9388b0642ea8e4be848a34a9d928cea71578f1e951de6891ac95. 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/QMFME2413500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb039cd6825a124079cff09f2b870784ff1fe755b17eaf5216208cdffade336d7. 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/QMFME2413634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x108330d1ceb5adf33dd47d12b23e35ea474012ad2efcb09118c85c9c3b047433. 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/QMBZ92401201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff256604af45100b0c3a4202d1252309b12c9681539931aa5638e5d2060c915. 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/QMFME2413644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x301b83ac12b4198adfce5d129deffa924517d5412f0573d24625b253dc600f1c. 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/QMFME2413708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x008dcebc1b8112b591680c67f0e76619b078259c865b60ea3d9fc06402ad5cb2. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QM6P42476452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bdafd65acd6d444f60068cb6adefcdec4c314bc33d04d335acbbbbb5a1bef02. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMFME2413712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d4e9a3bbbfb348fa204d5a5e356c2ec89567f290c2d073ae42971965424739. 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/QMFME2413714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x121a0d3ecfaf13422e7781ee117590a62b7a2498f38912a3ab1cb02b4790cb06. 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/GB9VV1700016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a78c39f0716fce4ae0908469b46829ea825cb0de71511f3c58dad76caabc817. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/TCAEC1914964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad62b400943b4f85291450f6daa4589d8fbb1a367e6acc97a8e2bfeaab5e067. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/CH6541812289.
Vibe [feat. Deezy & Monsta] (Bonus Track)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723d46e3ae5f46cdfeb80451536ccd2a8cd0a530d6aeefbf50a6a747094fe319. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QZK6M1915115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22b93246e12cffb765d18d3bf22fc3e3a672f3b7716309eaef5154c4a6ea5cc4. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/USZ4V1700224.