Kelvin Johnson, better known by his stage name K'Jon, is an R&B singer whose 2009 solo debut album, I Get Around, reached number one on the R&B charts. The lead single from the album, "On the Ocean",
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 0x9fa813a48d48a6fe87011f82529ed3241017179b39ec63ff1180ee1412e2010e. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1812fc4b-273b-4388-a998-ef3185cec3e1.json and https://artists.proofprofile.net/proofs/artist/1812fc4b-273b-4388-a998-ef3185cec3e1.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 0x623dae74375117eb1abd076c19406c44a00272bd93fa349797de10efa40ab45e. 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/USUM70974102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ea23397b0d15638593c5beafbaab2649ab146b94d39fea02dfe9e147a66d694. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:32:26Z), 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/USUM70974108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84f083f51190e8ed51e1e438320eaec02eed4a1173cb7c155f3c97976311ef49. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USUM70974101.
Come Get to This (Marvin Gaye Dedication)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d507fe9b808e5bc3d51fcb148d8f8ccabe1f400c48c994d54779360e7195204. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/USHM91380988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2601d35f1a98820cac8850b2805fc2f7217f86d673d2c01cd2352b4891867055. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/USHM91380989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c808dff8d5724c5ed028bc17ee3a692fb8b8e27af16c932f417e7cc93c1d618. 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/US5BY1650397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0204159bc210ac427080e2952ebdfb84dbe2090a821198d3e0b676a07b38432d. 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/USDJ20300495.