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 0x524c417e8497f8ac3cc32a320ea0790a1ef9354987fc709ce0e5968204549b44. 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/4c73de9d-27c7-4e66-a1fe-ae17ea72fe7a.json and https://artists.proofprofile.net/proofs/artist/4c73de9d-27c7-4e66-a1fe-ae17ea72fe7a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Should've Been Mine (feat. Sleepy Malo & Nate Dogg)
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 0x73dcab63f81aeea4a205155e897a2cc1e75a6d3931586f35ddad3a25d9c666c9. 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/USASN0901771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea6a6c393e02e98ab4afe63f77fac176670ce29b0f74bfb9ba38045fb53549a2. 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/USASN0800512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x568dacec3bdb2febfb98a817ab2d8d5039bc8799d98af105a03cbe4882ad31a3. 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/USASN0800513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc71fb4fbd6258cc83cd2494b03263fa878789bdffe384416fee944d2d376fe2. 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/USASN0800515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc04fa66229a1437d99523a6d2d36be1d593eef655268a4490b51dffd982d2195. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/USASN0800517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b14f2b1d72253e2f196247200705ec66a8b8f6404243ec4059ec06bf5e0b1c. 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/USASN0800518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40f5abd69673e6ff77ca45f061f9793a332bb59a730c4c4c5836478b430f1cfc. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USASN2000750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x281e8fffd8bc0b0783cac2a0a4adc5060572e461cec58a193011aede72e57e49. 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/USASN1502104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1854e5ae7c93477d4640ae8dcac30d41da26d2e1ee6bdc1dcb456854e35dd1b2. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USASN1302309.
Should've Been Mine (R.I.P. Remix) (feat. Nate Dogg, Lighter Shade of Brown, Kid Frost, Proper Dos, Lil Blacky & Sleepy Malo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a97c8eeb703b44d689968c37ff0ef941687fc6af6d9f67e1ee0005522dcf15. 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/USASN1101129.
Don't Say I Don't Love You (Remix) (feat. NB Ridaz & Ne-yo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b8863c12d24f8de50a07f463cf79c8e9e634e0f055ca2827f988079b49c4375. 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/USASN1101132.
Gangsters Get Lonely Too (feat. Lighter Shade of Brown, Sleepy Malo & Lil Blacky)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce0e4b188c9c7b8d156e0a5fe849d82c33baf3b1f915581401464766c00b481. 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/USASN1101137.
Mister D Presents : 113% Gangster Music Volume 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46cf223acd4247031f660155e3b133f1e0effba96ce0c413c77f70f810342b3e. 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/USASN0800525.
Mister D Presents Southland Riders Vol. 1
I've Had Some Problems (feat. Cold 187um, OG Ese Trouble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc9d2dd38a593fba28da3278cdc65d612c9b5d1ef8d9622e05c9bcdd986a4325. 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/USASN1900520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb65585fadb5f0ee271a5cd2b527d4337001269be0a19478eda1d4cb6fd67a9. 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/USASN2000235.