thumb|St Edward's Crown (1661), used for the coronation of English monarchs and, from 1707, British monarchs, to the present day. A crown is a traditional form of head adornment, or hat, worn by monar
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 0xfed9335244ddd5fd08fc47909dc3ca9591cbf8287ced80daf2584bcbdc109f62. 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/7fbd4023-7a31-4d6a-9e69-b57257a5283c.json and https://artists.proofprofile.net/proofs/artist/7fbd4023-7a31-4d6a-9e69-b57257a5283c.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 0xbb311c926d057154f76901f8c69f55285d65c127a521c360c59a91c28d931883. 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/FR5R00912850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa67d1bf737fb28ce2c42fc7536c7408bb6eea21147582b490b7b3435b8278ce8. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/FRPI32200134.
Here We Are (feat. Soulstice, Main Flow) [Cuts by Dj Nixon]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7b547f58a34d642dbc5a9177ac070c8644e1ef03b00c390c9d975a1ca4ebddb. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/FRPI32200135.
The Message (feat. PMD of EPMD, Fynt, Akhenaton & Lil Dap from Group Home) [Cuts by Chich 33]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f49d6243a7606212ba27914547316c7c773123a08e3403375f040716de9cc0. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/FRPI32200136.
Back In A Dayz (feat. Kouzumin, EL Da Sensei from The Artifacts & Paloato) [ Cuts by Dj Venum]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809419361b8e0d83d6cf016d84761a1fb2a961d3510caf52131ef16d02549d4c. 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/FRPI32200142.
R To The X (feat. RADIx) [Cuts by Crown]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfd7fdcc164e4aa269d8006e6f2745447a347717cb6de4ef718122f5878e0038. 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/FRPI32200143.
Pieces To The Puzzle (feat. Rasco) [Cuts by Chinch 33]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d2756b446868cf4df478f77e100ed66d2c1338c106eb1132f664a936f0dd2a2. 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/FRPI32200144.
Warning (feat. Dadoo from KDD) [Cuts by Dj P]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf8982c5a056edc69336827c978ed6f32171fefc7d9250dd654c0a63c26c3a6d. 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/FRPI32200145.
Survival Chalenge (feat. Reks, Kool Sphere from Verbal Threat & Krumb Snatcha) [Cuts by Chinch 33]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c137fa180e1a2cfeac7db8f09bb1a13ecd9b77622d364e106d2e82d968aa0ba. 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/FRPI32200146.
No Doubtz (feat. Phil Da Agony, Saigon & J-Hood) [Cuts by Crown]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b53c51011572da90dcf684b0de38c94228cdce4d8cf5dce65ace11f4e1350d7. 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/FRPI32200147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c1766f8bf3960665b49f7d9e729275b5e444cc17aeda41004cbcca99bf4be9. 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/FRPI32200148.
What's The World Needs Now (feat. Caxton Press)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3986ce95ed2437d4c7b8def192427a6c7dd7eeb1884e1074c73046b9c4a4261. 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/FRPI32200149.
Street Life (feat. Gys, Demi Portion & Phileas Flow)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf7ef472ca23e3929e12044d6829bda9b1771415b1fe183ff68a3a6943b82891. 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/FRPI32200152.
En Roue Libre (feat. ATK, Gwenzel, Fayçal & Tupan) [Cuts by Dj Venum]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1efc290d0622d72461170135024c3da321afd2a84381af36bb95c043765624ba. 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/FRPI32200154.