Jojo, JoJo or Jo Jo is a given name, surname, nickname or stage name used by several people and fictional characters, including: People with the given name, nickname or stage name Musicians JoJo (sin
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 0x9484052b82728c5b262038d6e4ddaa9507c54541aeecfda57461b1e386711421. 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/6f146f9c-3e68-4cd1-8b75-22be1510766b.json and https://artists.proofprofile.net/proofs/artist/6f146f9c-3e68-4cd1-8b75-22be1510766b.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 0x84a3d3419a80bb74341f0a9a10b1610698093bdf89bd701dacf6ac4fb6427947. 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/GBX722100150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41313216da14cd304cf0920890508ffc030d66a240f8bee2578d7c712dd02d26. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBX722100102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41313216da14cd304cf0920890508ffc030d66a240f8bee2578d7c712dd02d26. 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/GBX722100102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x480ab72bdf3145371eb30699857ac1a162e2bc34bb80a5842074d84840e03e97. 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/QZES52072698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1c6acf7539a38cb5f9f1e60ecf06b3122a35841bc4e687be7801269149693f7. 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/GX3Q92093659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x775593e8288c4be5fd64f5433233f47290ae83f807a66c15af819af3cb3a0204. 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/GBX722100271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a3d3419a80bb74341f0a9a10b1610698093bdf89bd701dacf6ac4fb6427947. 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/GBX722100150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41313216da14cd304cf0920890508ffc030d66a240f8bee2578d7c712dd02d26. 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/GBX722100102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e931235f4c7d66bb82a0189efba9a1552a7d90a4d7fa8f512d8db81532282c. 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/USA2P2045882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff36507474f2fe840e484e4adaed3ebfabc24a22c34f42deb6f4abe29562bd45. 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/USA2P2045881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d5a3f9239cf83d260665f165b8c569440649edf07fb16e42f50c7ef3c98e482. 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/QZTB42408147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda7ba7c0f2bf662831babbfb5fb4a09a6102b1e3571819aa768e1c33ba05e326. 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/GX3Q92334348.