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 0xf0cbaf5104de1d5dce08a906dced4e1ab193325c04e023a1657d26edbad04760. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d0d0245e-e5f1-4407-9044-6084f29b8974.json and https://artists.proofprofile.net/proofs/artist/d0d0245e-e5f1-4407-9044-6084f29b8974.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Just Know Dat (feat. Flo Rida, Billy Blue & Ace Hood)
DJ Khaled & E-class Present From The 305
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 0x28779ae01f8e2befc3516945ff2ebeca9baa19a2bafec3f31e3222f0199ed227. 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/USKO10900674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aec1a4f87f9e95adf6e94f53f7bc4e64df2c4157297c669436c5830d3e5ab4f. 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/USKO10901374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35bd8ee64b2d392cfa613500ac1bcb6e5dc6b3250e78a8f6e1c2d4082aac9d07. 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/USKO10902024.
Black Shades (feat. Ball Greezy & Billy Blue)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0cb644ea5f7169cc9605dbdd657a5fbe2a09f242262abe4182600d6c1dc4f3e. 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/USKO10902025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe22a673e09d83130b9a89ca6d046ff856aa9a3abe4f9f6a0458a21d8706875f6. 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/USKO10902028.
50 Ft. (feat. Swazy Baby, Y.D., Spoat & Charles Reed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6f4cfaad00451a7bb4946e409f4af7502d3894ba87359e2d8995c60406c97c. 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/USKO10902030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe63089d64d7606cc03ef407d7bfc821f5c2ed969ad1ddf68c99645de868c6ba5. 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/USKO10902033.
Yayo (feat. Flo Rida, Billy Blue, Ball Greezy, Rick Ross, Redd Eyezz, Bred, Pitbull & Ace Hood)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb02b6198169eea46ad10854e91f88bfe5767aaaac2df1c6c969f195c892dc69. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USKO10902035.
Look What I Did (feat. Brisco & Trick Daddy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27536ebed5c36623c616f596251248d52afa51fb13bd46cc3d218419963e9a2d. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USKO10902021.
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 0xdfeda1a0a52917221f1c090ac15f9da78a79458432fca3a51567560d76988ede. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USKO10902022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x090d3c21751f8bb444902974da91f8c98f2099ef26e861987d93dce0c5dcc051. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/USKO10902027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ba50214ce2e4d7be83e1e1935b240ad90acf078b288a1faa992dbfd787f917. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/USKO10902029.
F*** Who Don't Like It (feat. Brisco & Ace Hood)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff98493444feec0bdafb268e7506439e2134e2d7e5377520237f4d537f767e8. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/USKO10902031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa60d19b04bf6c4357ce9dcfb7a467bee317ac0793cf0e96699097cfde9e3a597. 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/USKO10909620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2f1c12d6ff05048aa0e48c66d86f231431e0db70da5a06058e4bab227cca77. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USKO10902034.