Charlie may refer to: Animal Charlie (elephant) (died 1923), circus and movies Charlie (parrot) (born 1899), a pet possibly owned by Winston Churchill Charlie (goat), an animal actor in horror fil
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 0x4a250da30f8d0481dcaede5a9576184a5899e54b998181f5ea7dec608068dd08. 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/bbb59894-2b1d-45c7-b4e9-19441bc2fddd.json and https://artists.proofprofile.net/proofs/artist/bbb59894-2b1d-45c7-b4e9-19441bc2fddd.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 0x7110652e7378f92f2943c97092ac4e1ad6ea9a29c73df4219d3e8cd27ed7cc65. 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/QZHN52009660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99e566eeecd2b102184ade8226ec214f53858b4b16e29d81e6c3b97fc65b013a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZHN52009662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e4076a4ca1dcdacc4685909df966101ab77adba57587db96e715dbd72562eaa. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZHN52009664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x132fc1243543919b0a1c24220ca9d25ecf5ca139eb68982f53fca6eb8d46779b. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZHN52009665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ed8b970d71bdfe3623ffa29b2546b546cac75e3a13cec179d28a52f0e546a78. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZHN52009666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb0f8dad8ebc41ea7edd705f82826bcabb228fbd6014f53e446df7b7eb84741. 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/QZHN52009667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4dc8a67c679c11b1ffcb685b393ad62151a368781a3a7604d079360227ddab2. 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/QZHN52009668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe82f02d4dd16d6134feda0f8b39a904e5c3fb44a01e17b93278e8ddffd86bb. 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/QZHN52009669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac0e2b8405f18e02870d6e0ff44ecd9569c07d2882cbc1dbb192ba3786311956. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/QZHN52009670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cadc5a7521166c9c90f1d3ae20b51042a91ed98959c6cd95a87f052588ddf0a. 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/QZVK62200043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d2acdd2fcc6bc2a8d5431ba4d92c5db49a0814a6842bfecbe57cf5b166c292a. 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/QM3DF2127441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82e7c7803d3fa89ec653a9df7f25f32a7787238d1f60f8159bec9f64040ad858. 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/QM3DF2168608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xada96f15437f036041ffed791e3b9a7aa8dc81337566e77d5e279b0762e98166. 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/QM3DF2159437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94fa42d161984879c348ef54997413e16a88ff9329ab1613945ef3a35e778481. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/DEVF12000598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdc03f822132744b1a812e531f6cee0722fd914cda0bcbc21aea9004a1494115. 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/QM4TW2353649.