Archy Ivan Marshall (born 24 August 1994), also known by his stage name King Krule, among other names, is an English singer, songwriter, musician, rapper and record producer, known for projects such a
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 0xcf220d8d2070a444ef54295d7e014c13f48d071d0dd6ebe3587750f5f4e8db25. 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/bc218608-3f84-4358-8aa7-9e958b188d2e.json and https://artists.proofprofile.net/proofs/artist/bc218608-3f84-4358-8aa7-9e958b188d2e.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 0xa125f4f7b298e2b7d9b13941503d770ba10dea1fe98216b76cb8b539465df1f5. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/GBH481300066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73bbd2e61da1cf0be3ff27ab60452ab3dcc5ab732505fc68fa3849d7a08a54d3. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/GBBKS1700220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73bbd2e61da1cf0be3ff27ab60452ab3dcc5ab732505fc68fa3849d7a08a54d3. Chain 2 (Bitcoin): anchored in block 958613 (2026-07-18T21:35:09Z), 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/GBBKS1700220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3efa0656fc3d2128a2ef53d27fbd035dfe2cbeca4fff36f87174980f5d3eb1d5. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/GBBKS1700212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3efa0656fc3d2128a2ef53d27fbd035dfe2cbeca4fff36f87174980f5d3eb1d5. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/GBBKS1700212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ee336dae2a9ee2e6579d2ab466bd794446ec30361a6d795207db978633d144. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/GBBKS1900145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ee336dae2a9ee2e6579d2ab466bd794446ec30361a6d795207db978633d144. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/GBBKS1900145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde4e1726c5bd739abdc64c542aa31e05621ab35a51351ac58fa140e2d0eee6b0. 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/GBBKS1900142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde4e1726c5bd739abdc64c542aa31e05621ab35a51351ac58fa140e2d0eee6b0. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBBKS1900142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4971acb0c8e9cd90c46dd7a43170ec5256417af9e859a8f3c053c67a79106050. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T05:30:12Z), 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/GBBKS1900136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4971acb0c8e9cd90c46dd7a43170ec5256417af9e859a8f3c053c67a79106050. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:29:54Z), 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/GBBKS1900136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde4e1726c5bd739abdc64c542aa31e05621ab35a51351ac58fa140e2d0eee6b0. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBBKS1900142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1433016813b666075884a2ee3ad93258bdf09580179d44154b4f2e28d7256bd4. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/GBBKS2100072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74385e67812362865d11fe08f183c2ca93b27e72e28bbb096912cb7d05909231. Chain 2 (Bitcoin): anchored in block 957723 (2026-07-12T15:34:17Z), 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/GBBKS2100079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x855bd9ee4c9ba65fbdd2566a80df34bd570f08ba2c179209ab00ac5432eb922a. Chain 2 (Bitcoin): anchored in block 957709 (2026-07-12T13:52:43Z), 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/GBBKS2100082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc10aef3d2059747f3d652aad11646e0541fbc38a69b42549f94389f293678d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GBH482300031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2988693cdcbaf775390bcc827e61ced12f67dfc20abe27f7b80303a7b65eba4. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/GBBKS2200289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2988693cdcbaf775390bcc827e61ced12f67dfc20abe27f7b80303a7b65eba4. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/GBBKS2200289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a3fa1966e3773c33f792f0ca84bbfe78a9ec3bfe1f36e7368df98753d92927. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/GBBKS2200300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2988693cdcbaf775390bcc827e61ced12f67dfc20abe27f7b80303a7b65eba4. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:10:15Z), 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/GBBKS2200289.
Jealous - King Krule Nothing Special Remix
Jealous (King Krule Nothing Special Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1126a57fbbb25b6d717eb4c96aec0dd9bf6e87714600caf09037ac4d3a4d8570. 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/GBMYF2000146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46718c489b6ad1c56595a76926ff3d62a35854a08bb1e0020b887cdb25e8564a. 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/UKQC92140009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46718c489b6ad1c56595a76926ff3d62a35854a08bb1e0020b887cdb25e8564a. 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/UKQC92140009.