William Awihilima Kahaialiʻi (October 17, 1960 – May 18, 2020), known as Willie K, was a Hawaiian musician who performed in a variety of styles, including blues, rock, opera and Hawaiian music. Early
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 0xad36e8656ce48d189327628bcc2645cb2d71ee00b383abdc609bdbbcfdded438. 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/ae3be5a5-6941-4f2e-8c00-68fafad2a5a3.json and https://artists.proofprofile.net/proofs/artist/ae3be5a5-6941-4f2e-8c00-68fafad2a5a3.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 0xdbea4b3307c2a608825b4d92699e634687846f53434457f0eea8f4634e6a3aa8. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USMAC2100036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657a6cf654194004d2281272f2f41832b8c19c2f5c5e9ae89f2045dead88ba36. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USMAC2100041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6e0cb935db96b4e311df86701cdcb27f1f1979c08262ed3b4e14333b09d8c7e. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T10:57:23Z), 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/USMAC9900077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d913daee40dc116da544f713fbde0ad48b63a9d0f3703192899e3e21e4c476d. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USMAC0000273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ded6a9b853a52937f529641a2e1526248a588829b04bfd05fed5db214bd6e6e. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T10:53:00Z), 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/USMAC0000277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cff9d70c5ad6c5a919c853342769fba4fbe23a886ff51911a8a170e1ffa4538. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:05:18Z), 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/USMAC0000278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5181283da2ff10731f179fcda619eca1ff582d16e23a07068f3de2e11ea3986d. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/USMAC0000279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcddd9a5361281c346fd76f4ab0899f26a0356eac64368432d144c5a1c11be5b5. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/USMAC0000280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1298ec5af4f8581fb0dc385f71ea00d38ec6b5d745c17b767e474bc7604e2b7a. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T16:04:53Z), 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/QZJNV2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c5a873fe14aebd8b8b0c4105c874d6269740ffdacd1615ba57fde71f724211e. 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/USMAC9800038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x405792c0bfd52d49a21571ae7c79915a39347e251a6ad2426132cf85500d8bd6. 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/USMAC9800039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x903eb6d6bbde61e6d5c67972bb96552f16e8a2a4bd55ea105fe8afd2583424a5. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/USMAC9800040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2112a14b1b59fa2b65a91aebda48fd7556515a11e107cdaf0d21af0abd9d1cdc. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USMAC9800041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4faa91d8c1e26e348600b4d67c2aeb9d01582ba575385f67f18e67b8a2360899. 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/USMAC9800042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c2bae9032dabd1da5dbc13c6248458362156e2553a1297fa806b6c25502e44. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USMAC9800044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1e5768dc0b4cdb7502ce4a6420652881b328ccafef8456ff09d5a032ef8b2c6. 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/USMAC9800045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc84e41fb5047450985e3b040555195d3be5535b0edff048f3decb31fd0976218. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USMAC9800046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x753e3a769ffdef1eca08113c17fe847fe99938b228b5f7d7be35b4b922ad377a. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USWD10834543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc15029e423d413d95e1b28c44653ddd84cb75f2e325385f485815e188aa00522. 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/QZ3GF1800014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f9c8d0c0a21d4d1c7910713502222e47c04f1cf347051c6219c1f5e22fce65. 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/USHM91837494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee3f7fa472b21a2aaca04005603bd34feebc207df774b9f0fe1b85511a539832. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USMAC9800043.
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 0x3266c4401ae1f911845d7ed322e86a989e4d1083a53437529158af2be55a8232. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/USMAC9800047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26e46ece43667c42b44b63cc325ebd9af631092c10ba617f8d95b6cfef373f04. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USMAC9800048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28846c0d2285563ac49894c15f29d3fd407c7dd6c885f4c3c6a4e43f16324e64. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/USMAC9800049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x368e803490c8fa8ed467a861c438f6f69159af1575a1794c00c6e8911b7d995a. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USMAC9800050.