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 0x51fa3d4eba77fb44177ee2a3bb42b8af6f7a6a623453da4ab7643c337d314cc5. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7fb486ab-67be-4e0a-9a3c-f78164aa0f08.json and https://artists.proofprofile.net/proofs/artist/7fb486ab-67be-4e0a-9a3c-f78164aa0f08.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 0xdac582086fac7882024643793be3ba928144cba353323976715f7ac5df53aef2. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZK6P2234275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ba10e7c343b8221d3f48aff3411c4829b0fa6b3ba0526e36b520f5b9593d3e. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZK6P2234274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x791c89c8db3736e9315c2a489c3ac52a9863d3433a7ba6cb0f3ef191dfd1ac41. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZTB62216523.
Spicy (Lulu x Uaziuk Remix) (feat. susk & Aljas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf075d553d58c8017b8734fee6dc9db4082f9cb42c2bc8184c50f8c4955050cf0. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/PLC062402830.
Przekleństwa Niewinności: Zbrodnia i Kara
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e925762fd1da73f4f5c12e8d964f7caf24202bf136b95a0e4cafd09e7e423e4. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/PL1A62462032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b2dba5d664000850e6c9d5edcdc49114fd870d77b42d07cbb355939b1965c59. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/PL1A62462036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fa5eb07c9a243f5283ea31c3ba689893b7115fa49368d11e4bb4def2e66a54c. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:34:37Z), 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/PL6A22478665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b6f41bb00727ed392fcc9d1086919a4f26196d044957d37d5e2592d035ab36d. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/PL6B02442995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b6f41bb00727ed392fcc9d1086919a4f26196d044957d37d5e2592d035ab36d. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/PL6B02442995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8521b9183a7b814b91bfe4de3f8ce9e8982d829852689d64238dfab926a65250. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/PL6B02403880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c9c584d24194334e947dc8f40fbfd57cf9e52eed07008454e3b4e7d9bc2666. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:58:50Z), 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/PL6B02442996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfed9424bca434e4fa64484c9fb61281e635a75a77b506f8c0bdeaad288870de9. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/PL6B02442997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04edc95d5023e2fa3f1259db6bab01e3f3f8edd0e964e170e55a404526cf635c. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:21:09Z), 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/PL6B02481165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b2dba5d664000850e6c9d5edcdc49114fd870d77b42d07cbb355939b1965c59. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/PL1A62462036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b6ab7e13d225290a0b4f12bd30cb649b48730669077780ee07d02186dfc7978. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:05:26Z), 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/PL6B02481166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x179225bf59e3ac27ab8f63466371649325db9fc24060ee35aad2da82feec3aea. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/PL44J2520884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa4ec725d65f590d3f3ddb73502c54762ac47eb2805cc65dd69f431a81e3593e. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-21T08:56:08Z), 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/PL44J2520885.