Haiku Hands are an alternative dance electronic music group from Sydney and Melbourne, Australia. The group consists of Claire Nakazawa, Beatrice Lewis, Mie Nakazawa, and performing member Mataya Youn
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 0xa5697390d47689ca76fb083fad64560f69ed146e99bc55157f7d8ebb0d816aad. 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/af8678ed-7bb2-402c-934f-04f1863f646f.json and https://artists.proofprofile.net/proofs/artist/af8678ed-7bb2-402c-934f-04f1863f646f.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 0xe2a7901f4eebf4108a9779628bf4bdcbf02920ee63a1673208cfedf07f31f349. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:52:14Z), 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/GBKPL1782812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02328beb5acdee7a8a53565a4f951a6b4b0973984cd664d8e8b25805a9b0ae77. 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/USZ4V1900373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5d51f8e16c9592e04fc113cd3ec5b0a879762fac69d424e4cfd727a4933be7. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:43:50Z), 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/USZ4V2000295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5d51f8e16c9592e04fc113cd3ec5b0a879762fac69d424e4cfd727a4933be7. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/USZ4V2000295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02328beb5acdee7a8a53565a4f951a6b4b0973984cd664d8e8b25805a9b0ae77. 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/USZ4V1900373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf518ed8d49f97ba20740312b39a2b5f7d713a1a1544f95879da1674b4ed460d6. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/GBKPL1803951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02328beb5acdee7a8a53565a4f951a6b4b0973984cd664d8e8b25805a9b0ae77. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USZ4V1900373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2dbc20ce2157eb648933a62f20ee06acc149b552b7b2ab0faef84ea79f0ba79. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/USZ4V2000315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0441cb957533c761fd4c707d5553d44f789a2002862bf93555cc16e5de24714. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:33:05Z), 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/USZ4V2000316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf518ed8d49f97ba20740312b39a2b5f7d713a1a1544f95879da1674b4ed460d6. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:38:59Z), 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/GBKPL1803951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02328beb5acdee7a8a53565a4f951a6b4b0973984cd664d8e8b25805a9b0ae77. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USZ4V1900373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x125b60c31557a4ff575afd3651eeb6464eba3d2fdec3ec40760c87fc84045bf0. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USZ4V2000449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc34b14f8ef60b48e6fd7e5794cb02d37d55d41e10c4685ae6dd49c512e4f9c34. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/AU9Z12300033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e9811c55dce16200821ef8733305cb376e0b7627551fc698bbc4e37e352cf15. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/AU9Z12300045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dfdeaf6b96190d1f000b89b738ff458b4c251651d75b0c50a1d7d4e269557ac. 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/AU9Z12300047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501e0428489f7022401bcdd723e5538aa4ebc23b2511f2f03da1b0ccb8b65ca0. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/AU9Z12300049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7427781d710ed3518d97f28c0764e2f0150e3ea93928798a4bd98f6c32564b10. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/AU9Z12300050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd600b641c58dc14ea2e109990ab764392b9c21be1ac785aec7fa7e8e26972dc2. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/AU9Z12300038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1323f781f1571914a7f92004f76914933a67f94e2096b51eb3655c9d865ffdfc. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/AU9Z12300052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3414a5ed928881c7f6c6724d482be9e9939a869826c7e682d241b30974ee1f89. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/AU9Z12300034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc34b14f8ef60b48e6fd7e5794cb02d37d55d41e10c4685ae6dd49c512e4f9c34. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/AU9Z12300033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12fee7eb8b50e634cd29ff22489c3cc5a8cb1887778f61d64f215bba04fba690. 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/AU9Z12400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a5b07eeec1f38fbb572d804a99e455794c71c03efb0883fc331f14e58c837bb. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/AU9Z12400031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9be14dd31679c07ec8ea7c9b5ed680af97e7f41cf3fbaaee248cc5f7e9e7b1. 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/AUEF01901033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5581cff41e00702af86330bc3ff7549a6a3f76543bc5e1f65eba772fedfc9388. 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/AU2DY2500137.