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 0x095c274ff1cc114ba3986eba98990d59edb4a70e9f4caa36c5f0aabd6caa720b. 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/ea0a6dad-61e6-4188-800a-9f26f5b04a6a.json and https://artists.proofprofile.net/proofs/artist/ea0a6dad-61e6-4188-800a-9f26f5b04a6a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Proper Beats & Rhymes Vol. 1 (Continuous DJ Mix By MC Flipside)
Rewind Series: MC Flipside & Chris Vench - Homage (Ninjury Remixes)
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 0xdf4d99b65dd51400a254907371a85898376fd4f469cdbb40f362753410611b4b. 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/GBTDG0800025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7760f338ed1df2d3577d119d8b9510433c49bdeb53ed9c75fe1e21decddede9e. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/HUA470900551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d82a030ebf5bf6b0c4bbae3db59e0e53869185d9d8de9bd54abfd6d5c814b8. 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/FR96X1804908.
Wreck Shop - Honey Dijon & Jerome Robins Tekk Vocal Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f18afebf26ad6f13758ef7004c03cfa5313e5fa66cb05da58049ceebeb3c12. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/USMKV1300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce5fb67681f6312a461b42f04255c922f8ecee17d0852cc5758eef738fa00d92. 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/USLZ41010259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x030621c467314ad0e7309e099c4aea633ab452c2672824ec34ad942ff4866683. 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/GBFEK1200210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7de382767e1a16e6d2d221fcbe7215bdf7b9d8fbd63e4dd18b3c6abef96031e. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/CAW430900279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7e23c53e83a4c4e0a7abdbd46a3f81c8f02087a3d63ed073adcee160923eb09. 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/CAW430900271.