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 0xd8bb2a1c4721c2c826e56eaa1ff7904533e19bb2b3007a97154994f03fa85648. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b0a2987d-39ac-4505-b5b2-936ebe8c0447.json and https://artists.proofprofile.net/proofs/artist/b0a2987d-39ac-4505-b5b2-936ebe8c0447.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 0x1bf7541625f59a7864d477c21c0c87bf8fd7007e2dae1838767a26861d827649. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/NO3671203010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc38e2e4d306a3e6551fd43821700e8b16b66175cdec0f74a4c94039b532f428f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-20T11:58:33Z), 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/NO3671208010.
(Sett På No') Eazy-E (Remix) [feat. Son Of Light & RSP]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48fa0904ac0c9441859632b137411e95a597c12d3ba495f810300591e652a001. 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/NOBLV1102011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44a92e312fadeaaa85e72cfeeb10f5c46ecbc610a497349328e461a4071776d6. 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/NOBLV1003090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f57309782901eda1bb9b1cf7a23d951340469c67da842b5ef960bb42a90ac78. 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/NOAJR2200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e5593bd7230337be190b44b1e7d88ab68dc696022d445b33f0200a602c3df3. 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/NONFM1901200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e0f7dda38db197a46f22ecc810ab3d83c28079d82134e0ece08e8b8c6f78ab6. 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/NONFM1602090.
Livin Legend Feat. Klish, Hell Rell & Rsp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa82581ccf6982562d8cefa4b66467c57b63c05d90a427d439c5f36b0d24296. 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/NO2YX1502010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0675a61a8d9d6d8610e089950557a452a6abe03238c1b662fccd5f662709147. 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/GB5EA1703567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd9a40ba1361c70f2a9dfe5280e25f9a24401aa9a62deb92c95d5dd09e36682. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/NOI761307050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb0e9a30667547bccbb79eaa610b64c2bae48e590ae6b0fe3c965dd3563a9068. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/NO37G1101011.
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 0x8ab04c7426e741f14500028958ac030256bb5d7d286569d3c80b339cf19827e2. 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/NONFM1902100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4752f17d00653c36047a43abb65366ea8ed46b235ab5f4c2610b4361d8017d4a. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/NONFM1501080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c266471aaa36833bccea5eca4282085a1424b8337ada6215237d29e3dfd036. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QMBZ92356954.