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 0x6cf77054a756c48473cb3643a2431b3dc11de4351aca4c067e416ee4d5a8c55d. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9adf615c-f4e0-4d18-a988-9f631fbf2880.json and https://artists.proofprofile.net/proofs/artist/9adf615c-f4e0-4d18-a988-9f631fbf2880.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 0xb1c00df9c819abf50a9c7f9214b4af52bc2d5128dbccc3d17f1cd5288c080387. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USLD91754686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4ac9eebeb42681fcffa5020cceedb6b297c527582eb5578a0e2dd3250514838. 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/USLD91752272.
Hop Out Crew (feat. Yung Deuxe & Phew3k)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc370eedc6169b2aebacc71b57bc3a2f80eb87bdfaa7c6692f80c93250fb1ec9. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USLD91753271.
ForeverYc (feat. Lil Bigg, Lil Dre6o, Lil Mon & Phew3k)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c7873e486b563b0fe579044796a48a6db63fac06d1d3262bb16a7bfb950d519. 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/USLD91753430.
Ain't Right (feat. Lil Bigg, P5 & Phew3k)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ecdee22c7d4becb2522bad026ded920198e309489ff9acd1e71055c2e8bf1d7. 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/USLD91753443.
Me My Blicky N You (feat. Lil Bigg & Phew3k)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b86eeee246cdf09b4a5bf6fdbdf6b7b758b3d1d8b5d11a84e26c853e0cfb9a. 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/USLD91753444.
Big 43 (feat. Phew3k, OzoneMoney, LuhLoaded & Lil Bigg)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600d780fa6f8bb0f5c41c2a6f994096d83b0f0c8d0c2dbf7a55c3b2245b3ce80. 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/USLD91753431.
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
Ain't Want It Seem (feat. LuhLoaded & Phew3k)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x023119cf847482461ad1267c679884631e82fda0a1a700ffc14707b37260936a. 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/USLD91753436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x156c9d1be7019528d492a33683857fb3497d669a6db99c362526f271d55768fa. 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/USLD91753442.