1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xbf3d7b5d57989f4312fb54fcb87eb54d0700c283e72669702527486dcb372c42. 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/3b286709-4f45-4eed-884d-5072351c2a8a.json and https://artists.proofprofile.net/proofs/artist/3b286709-4f45-4eed-884d-5072351c2a8a.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 → block OTSBitcoinBlock must exist at that height 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 0xd30eaee2a0eb4dc3abae94ca3886db4bc884a36fb9ac7152b81ad416be618d7b. 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/CA5KR1953342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe59a76388f90e6b74b14a4261cb7a31ec89ba91db5102148ca62038aec64de6b. 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/CA5KR2095522.
What's The Move (w/ Dances With White Girls)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c9641586e6baa6244c80c9ee1c36f10d4516516ad93fb3a85bf9985807516e. 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/NLRD52264065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1209bf80c0b552fb654184dc5016a213cebc1a8217a2e227ab9c7570425f653a. 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/NL8RL2316629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x942269339573174ee22fa0b10298b27ec8a84ed02556e1becac545a4b915350c. 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/NL8RL2338485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc641f628d5e989356d89629629f806fb55d25656bb1c0b040340df4cab65a66c. 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/NL8RL2338488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a307a6df3263acee2ca717f38fdc5f2153e951c4e2e126f02ac70bb1b28e41b. 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/NL8RL2338495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb64648b7650f12a8a3a27c33fbff629b3ddd2724af7f555808963a73434679dc. 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/NL8RL2338487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ca5adcb80ebad4d0b4f6bb3feccd2db06717469660f983232cda5fe49f62cc. 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/NL8RL2424315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a22b93d38cbc8371d4f575a7f35c2c9a41135c90edb87dbeea2e2bfaea275f0. 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/NL8RL2420921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x594b9188504437811b40c9d6aaa8d9521cb5f7cdb2653000c5fa0e96f4d9bedf. 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/NL8RL2420918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x408a907c2d9b135628b35d50752278e8e4b9827458c4e88f0663e2718745a9f8. 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/NL8RL2445429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa31695cd223bb3a81636f03325f916112a2a8a2a578976a97d31508fc5a4a351. 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/NL8RL2463659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd06cad938537887708447ea7baf67e3cae59881d79b69ce57e93a4b89438ac3b. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/NL8RL2463660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88880b0cc15c15f8a25810d2a90f73e4c3d24b08ca1ee466afbe5326aa4475a7. 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/NL8RL2463661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58f3155749a524b473d5f0ad0dc0e30aab9ba87e0d5a2ea1497ef1dcd6bc994e. 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/NL8RL2463667.