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 0x512b2a18481cd5d1385e9e90d78f82ddc816db4f0df03fadaa536d953e54526f. 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/21d0bfb0-8a5b-48b6-8b3c-337cfabb645f.json and https://artists.proofprofile.net/proofs/artist/21d0bfb0-8a5b-48b6-8b3c-337cfabb645f.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 0xe3baa8f9a9babaf568ed2d20a876b38973595b5c4383b777984ffe4d34956f05. 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/DK2DY2300455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eaaae1c4a92df23c9fbc1ff1f306aae373927b8f786d7db53150236e39eed36. 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/DKAZA2100145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e5920f661e3df3323188a005d5503a12511333404b3d1dbb595f5c74bd874ae. 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/DKUM72200436.
Fortjener (KEWAN LIGGER BEATET NORMAL X Shooter Gang X Baloosh)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8534ca69f89ba5d812731ffaf6cf3c052b35ab08a0d9464088b2dc2d40b5a75. 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/DKUM72100535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4f25e60645e799c78d9437a74548c0aed51716ed54a5308e351eb069e2ef606. 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/DKUM72100093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe54f5f29cea6088fb11a8749d0e6d48e208c1f3af0ae6e2fe0e4e44258399f61. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DKUM72000215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d2b73d153f6b0c2f8aff296574c2ca39ce2282f2302e1d3c8b1eb443f155db9. 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/DKADG2200163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46e95b59176a19554b9efb18718d526ca5f0a2da2053296b77e53e0ffd765fdf. 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/DKADG2100602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d448b0b6133d5d2064a0d993e2f74cfec8f510c37a8b88683b875fd54d91e4. 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/DKADG2100362.
TG BANDO (Marwan X Shooter Gang X Speedy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe54f5f29cea6088fb11a8749d0e6d48e208c1f3af0ae6e2fe0e4e44258399f61. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/DKUM72000215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e4dc1dce419e603d7a29cee96563b3e2e37cd728198ac2a80973ba5c158c1ff. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USZXT2351208.