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 0x25bbfb30288d6d4cc4c11d7094d334d767329e1b31a0178ddf9e209f1a35b640. 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/bc88ae91-f6b9-48bb-a119-5377efa98e89.json and https://artists.proofprofile.net/proofs/artist/bc88ae91-f6b9-48bb-a119-5377efa98e89.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 0xa3b95bfe3f57e2addeddaac4c6c748fa57cf08105a24a187b5de909f8b67f41e. 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/USUYG1133527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7899a5cbfbe437257c2ea48ecd8f3f27d6569b0b2068f499f0652908f00d22f9. 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/USUYG1133528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f391c8d22e6c4a3d80d432119b6d2418f0f0594d33afb00d54b9bb2e4eb148. 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/USUYG1133529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeddd7dcde966c5a0170cb424e589bc3bc918fc67793e79dd83af5838cdda8485. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USUYG1133533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf295e23ecaed2ad071167d80c6234fec2d8da719d4e1efbdeca8f90dab42c88b. 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/USUYG1133535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90aa6811d1dde3707b281fb8a2fc26ee441a02c1d3f0bfcc31cbbe98ab8f94ac. 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/USUYG1133537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed5dbe2170c6fdb4557cdef5ccc1e7d42b588b51f643c20c65c231e3f2603ad. 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/USQX91301774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4539a73943b885abbf56117bc0bbc88b072cd1e76f9d51ba83071e0a9e7ce46d. 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/USQX91301775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cb4bc3f284fc85054961e54bac46d6b52deeae47c4b240676791b0455cfc573. 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/USQX91301458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2260af8b06493c5c063a679dc01430c9b958423745c7f499f4fe09089dca41fc. 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/USQX91301778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x960d7624a711955e3deed642ed86a061a0cc44dbf228c3fccbd0b6df42ff67ef. 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/USQX91301779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a22b1ca8b17420c9e401e971fe2d0a099f38958b0d393a29bba91f764bf9a0c. 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/USQX91301782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ccc2286eaa47065f1e17bd2b8838efc92025d1d58ae6ad691903c8a751f3d8. 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/USQX91301783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x899995ae6119b213444e4a1ef311bdb48621c71e971f8d6e6bf3d0a820b46e35. 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/USQX91301781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31351d784baec7b22772fd3650a84415058e5683fadb27dd9bea9037b03a6636. 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/USQX91301785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x666b0a152debb200b15d34cdeb715b26703e82518b546467c1044e4221639614. 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/US23A1541795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf28aeccfe28e51a4eadfa3635c559802002e451bd1c1c537cf319bb326271ac4. 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/USSM11508515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb26eec06f716d17145e09a857618ba732124973baccd4b873b53e2ffb8160456. 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/USQX91401213.
Henny (Remix) (feat. French Montana, Mobb Deep & Busta Rhymes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde0466daf6952a8fe56fea024386caf6cda780535f1ec427e53bcbb262c6394. 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/USQX91400298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35d97615b49320943a46c0b751a6018ac5627e1cf153e8b60683d6ce02903edc. 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/QM8RL1400181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ce814e36db8b7f29768591e3e9c56043616695f2f21a3b42a4df4b9734ca47. 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/USTB11500276.