King 810 (pronounced King eight one oh; formerly known as and often shortened to simply King) is an American nu metal band from Flint, Michigan, formed in 2007. The band currently consists of David Gu
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 0x36d6157a909c5428c44a3cebde19bd6862795f8d48b4f68ba9cd0503f62dc2ce. 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/1490225a-32fd-44e9-96cf-e01e48607576.json and https://artists.proofprofile.net/proofs/artist/1490225a-32fd-44e9-96cf-e01e48607576.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 0xe3ab0d1256c21d3d6bf33bbd54d2a67203b27c18172e8efd7db610662d6ded31. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/NLA321400182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8003eff5d3c5ffe55a6e484525728b23c7d330f7af5e5e8f62c541f5f1c77b1a. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/NLA321400183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe257a47db4666aef3083cdb81a14d988385e9ee5693044871e0f30485c7bf31. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/NLA321400279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c15187f57dee0734e0095907f47a4feaab276458009e00afbfa21af4874bba. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:48:39Z), 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/NLA321400284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe731f14386f2df8c976e9e01e498841ed48c5822cbfe9c4723d538a5de8d0dab. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/NLA321500125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bba129b01f2601e5ab467a7d0716174472dd2162a78176a96567eb2af858147. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/USHM81678034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59710365e5d5f366461bbe3e7bb0707a8d5e5d6e61b182186a998aab7603553a. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USHM81678036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c9685006f102efbf71c0d86391f934b3d556314c0de7add051b688bb2fd1b3. 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/NLA321600112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e06d167c173dcd12e86e45aa78efc91e233864a3038b6d3fdf2e089ef3144c. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:52:13Z), 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/NLA321600106.
La Petite Mort or a Conversation with God
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x251bd990af83700759852e668ea6d49627eccbb0cfba017bc42c9286d690a333. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:37:47Z), 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/QZK6F2086244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c51cb5d83430032790d73d04917b75145656edd20a6f60b32445b1b5569958f. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZK6F2086245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b6f1ac151ee60becc4a4e2ae53a2a617dc804185a732a9d0405fef7edcc000b. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:14:11Z), 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/QZK6F2086246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x682acec8e2387fb473740aa15de260bff468b54f203e38a90cff312727f6e5b3. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZK6F2086247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a33e71c526f6140c09ef413f82e76b7b7f3e0f27fab970d87e80d13a1fe16a4. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZK6F2086248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bfd8613894e7eec21fcde059d9b634bc507d2c7529a70f08f35eb94113c8451. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/QZES81885977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe8daf6768cec56e2902f55decea106fc477b8561459c034d0bdfc4198fc3ed3. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/QZFYW1997862.
AK Concerto No. 47, 11th Movement in G Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde58b467b9bf16a8445fdbd9ef45807d54f4a06c2ef81f16025c0e13ea5eb44a. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/GBRKQ2454700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0e95bdcac29fba77c9b4061b45c82240702a937605f21e31ebd64533a86917b. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GBRKQ2454722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecdfb6d0bac97adab30b96fdcb13432145cf0e8e6a75d62bd54780172fc02449. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/GBRKQ2454910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ea6f063aa832acfb8fbd76738ff99e8442a3242768db7d0d9dd9372892133f. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZZEB2468807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa35d6444a20fa323905968bbe9d0ffd2fb98c4a7d31e48ac2eb25bf0a6801b4e. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/QZZEB2468840.
Best Nite Of My Life - Live from the Crofoot
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95c692555090e574dcb7bc0e6af1c3bc38222a8f319a462b304cfb3b4e304a0c. 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/QZZEB2468842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x582b5cbab0025172f5cae2c62bb74f7cab17a8d3b65e10f7c5bc9f1a799baee3. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/QZZEB2468877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c8a1ee9cd58e75a9e98821aed0d3a923576d6001a94bbe43fadbf24ff3e306. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZZ8A2557758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b0a99724275798d60b33f4dda69e0e55958186671b258ce12526de4439b1fd7. 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/AUI442400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b0a99724275798d60b33f4dda69e0e55958186671b258ce12526de4439b1fd7. 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/AUI442400013.