William Edward Graydon (born 8 May 1989), known professionally as 220 Kid (pronounced "two-twenty kid" and stylised in all caps), is an English record producer, DJ and remix artist. He gained recognit
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 0x1d88d49d767d3ca081cb7530deb193c998bd447da7650309fc82549b2bc2b3fe. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a821c206-7fa8-48bb-bf50-ed93a49c92fb.json and https://artists.proofprofile.net/proofs/artist/a821c206-7fa8-48bb-bf50-ed93a49c92fb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Wellerman (Sea Shanty / 220 KID x Billen Ted Remix)
Wellerman - Sea Shanty / 220 KID x Billen Ted Remix
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 0x8fe2508f34700eb52638b2bfad6849b8d2f83ae9d1649a376f2950b80408f1c3. 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/GBUM72100298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c18c1b03a79521778f2c760a6b7ec779d1b179012f481c9f9d5f82c942ea38. 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/GBHMU2000060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd89350ea53a1722574f1b12c873be5680ebce1c9b4e5c015e67ffa251e13051. 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/DEUE12395624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc44b8ec2a95fb2d2402869a24c54a035fd92788f8791ba6862a753f35a54ba34. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEXO72213140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c18c1b03a79521778f2c760a6b7ec779d1b179012f481c9f9d5f82c942ea38. 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/GBHMU2000060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3098034df80769921e17b0a7c962a3035a04786c6ffbc46f84464ab067d43f61. 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/HKJ962215458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e0cb562d397d2e163c0899178f21489e630913bed4766041a2c1f7593b4e72. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USAT22302181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x173a1b457b276f520a2400379ccf25b1d014030f921261c2d752e3bc9e5c80ee. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USZ4V2100129.
Unconditional (ft. Bryn Christopher) - Sidekick Remix
Unconditional (ft. Bryn Christopher) [Sidekick Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ce240278358c1acb19fe595e38d5aea362535e22c33bb12b687944b47308197. 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/USZ4V2100174.
Unconditional (feat. Bryn Christopher) - Franklin Remix
Unconditional (feat. Bryn Christopher) [Franklin Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb51be97c62337ea44c2b9ad1110075bf16a0d2a554a1b2056f5ca9eb6ad5fdad. 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/USZ4V2100169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4add6a80b0b5d056fe6c9671e39379baea4195912940c6afe3c4e6dede9d9d4. 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/GBARL2100717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4add6a80b0b5d056fe6c9671e39379baea4195912940c6afe3c4e6dede9d9d4. 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/GBARL2100717.
To Be Young (feat. Doja Cat) - 220 KID Remix
To Be Young (feat. Doja Cat) [220 KID Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcabdba95f0a83d01b7882c2c529ed31da8dc3917d9cb01c271eba854a4dad310. 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/GBAHS2000702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8579a1b73a32f44f9b6b511502a5a3f84f6eae548db7383c08004ecc15561129. 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/GBUM72102656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8579a1b73a32f44f9b6b511502a5a3f84f6eae548db7383c08004ecc15561129. 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/GBUM72102656.
Summer 91 (Looking Back) - 220 KID Remix
Summer 91 (Looking Back) [220 KID Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eeb747325a51e7bba0dd047b33e40c1efc4a5333c1348a2aac5e51486f6fc3e. 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/GBARL2100109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf61ba97aa59caa93e0615beb687a83878a2eea4044575b03a9667b73d0a6e87. 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/GBUM72006298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x943a93d1371ef91943309a154e605b3105cfc76159fe8ffe2fc801bb748dbf57. 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/QMUY42200083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42bb629f34ecb217baca2508240b61566f43926a39bb11a9ae1bd53598dc11eb. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/NLRD51632467.
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