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 0x1940f5b56113982a973f2807d9638771497442aca911cfbb5991db708f04360c. 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/a85bb023-dfd0-441c-8bc3-fdfc4031b85e.json and https://artists.proofprofile.net/proofs/artist/a85bb023-dfd0-441c-8bc3-fdfc4031b85e.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 0x2363525e197100dbe162b42e7a0dc234def2a96ba9602f51ec149c5a59d8d064. 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/USLD91756203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd75d273ebdb92f2cd241aa465f0eede89ee3ddc7b1211c1dbf3df0184d932110. 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/USUYG1493369.
City (feat. Blocboy JB & Hoodrich Pablo Juan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eea61abc4049b05084855964c42b018c8d866f616087b49d296bd62ace3f6de. 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/USLD91718466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf302033260c36a443efecdd2ce6c0bc39920fa42b816cae6f4cde03e646b00. 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/USLD91718468.
High w/ Stars (feat. Hoodrich Pablo Juan & Gunna)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a22a23c6f8c1a6cb446e144b22cb0d27280dacec48495bb5504df19bfc72cf7. 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/USLD91718471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6caa939d7e61659e4cc4847258b04cb2ab2b3cf9c7709f04ee251b082a2fcc6a. 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/USLD91718473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c09a34b79900887e19c04a3258d61b12dc4d0296c957a0f6ddd8f3744c66936. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/USLD91718472.
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 0x2498798e9db8b466903ec8b1c624d99f733e685f16cf5f0c9edc7384c0b49a74. 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/USLD91747243.
Born Dangerous (feat. Bino Brazy & 81Milk)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf69decd6a783b8865adad4aabaadcda88e3fe96cfa2347fe15a6bacbee4c6c8f. 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/USLD91732670.
Fast (feat. HoodRich Pablo Juan & MPR Tito)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c10719fc3ba0ae37af04317d5ff140ee4e6af0e31d23739f8bc28d94b0e4a54. 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/USLD91727969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf5ddba45f57c2389ede801ae480f753b9f77317c40609451e74961e34b740d. 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/USLD91723267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3080f4c9854bf8bc64463ee27555bba12f22e96d8c68a029d4ffee3148181a1. 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/USLD91722571.
I'm Not a Rapper (feat. Rico Cash & Sherwood Marty)
In The City (feat. BlocBoy JB & HoodRich Pablo Jaun)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x718b40dac5814dd8617a4b053f17c644524cd0b60bca5e7a7cfccfc2cd18afc7. 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/USLD91717496.
Zone 6 (feat. Hoodrich Pablo Juan, Yung Mal & Lil Quill)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cce94257aafd3388e5557bd394d40cbdddf860ebcc15b7d9ca12013807090f0. 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/USLD91712411.
Only Option (feat. Lil Dude & Hoodrich Pablo Juan)
Spill Wit It (feat. Rizzoo Rizzoo & Sauce Walka)
The Rico Act (feat. Young Scooter, Rico Cash & Hoodrich Pablo Juan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45452875156f9bf71e629aa268d522c334b3bfafa4e390c6652acbcb4b0a4223. 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/USLD91703346.
Stiff On Em (feat. Loso Loaded, Lotto Savage & Ca$h Out)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x240cff8383e979292047267fbbd6b6863fc8fad50e3b14a19aabebcf595514d5. 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/USLD90816837.