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 0x906c5fcb35fc657d022c8ac8f21eff0ff3ba80932e0f9cc780c277d67c343e52. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4b19c30e-9f98-442d-b6ac-28548d95fdc0.json and https://artists.proofprofile.net/proofs/artist/4b19c30e-9f98-442d-b6ac-28548d95fdc0.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 0x7dc3f8caf5e094d811ed8bdfea465e7fc3b322faa8c9b591ec9ff9773892f765. 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/AUNV01600446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66c26f1b746e93fb7cc22231659726347e2b62e632945addc19011e8456ec1f7. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/AUNV01600445.
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
Skitzmix 48 (World Edition) [Mixed by Nick Skitz]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb10ce356e4da303d057cd43930509d391dffdb7b46d08517345d7a27fce830d. 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/DEMA61400351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0746e9156725835da3fb1403549f30a11f829f37120abac7b8d933e486681a6f. 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/AUXL31400613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcdde6e3542ccb5dc438967bbe2c6c569d567df4929cda1f85b7a7a4dfd4cd23. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/AUXL31400641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab15c341c1355209f89598077fdc2b43f75013bf12d71fb953bd80b15f48068c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DET191406071.
Fight For Your Right ! (Yelhigh! Remix Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc17f526a9405418c95b443ac79d0b28e04b0444f4ac1674f6c50ec1940fe0dcf. 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/DET191305619.
Pukka Up - The House Collection 2016 (Mixed by Modaa, Ben Morris & Social Hooliganz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1de688b59c98641da64595df6826db3718e554410bd0621f3d5153e41376b46. 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/AUDCB1500531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd82689300dd449e33b43f1266fba6e629d3417ed057ee1c3378609a0a2b0979f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US8DZ1500025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf5b00f1c119ecc1536451b2792d13c4a38b3036f30ec75aac419809a84cb73f. 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/GBYDN1423760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a20d13da6deed1a23a72306cf2bbc798c15c25373a78f339e71f7696d805657. 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/GBYDN1500155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x910e95af5cc78463e0ce9487f286013b6a2fa8635e9cdf0d7e85137367eb5a22. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USLZJ1544717.
Bombsquad, Vol. 1 (Mixed by Bombs Away & Tenzin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x815ee29c73fbb31f69b786c332c81a6b887721080ae8be3c2207778a4e51644c. 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/AUCN31206621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ddfba4d720c533b3708e539c04ae96cf979979f8f797178aa68b4555fb3347. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLF711710065.
Cut Me Up (feat. Them & Us) [Cause & Affect Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b44fcc5244eb8cda46e66f81305b36be5ea36f621d24894a15195c8ed7e0044. 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/AUCN31206260.