Cecilio & Kapono were a Hawaiian pop music duo formed in 1973 by Henry Kapono Ka’aihue (known professionally as Henry Kapono, born September 21, 1948) and Cecilio David Rodriguez (born January 1945).
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 0xa968a00fd1f95f7cec231a8d188f57bd14860821e2f853f7f6c53e0de8966b78. 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/82867fc9-7017-418b-8731-03dfe7eb5b57.json and https://artists.proofprofile.net/proofs/artist/82867fc9-7017-418b-8731-03dfe7eb5b57.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 0x13b46e4adc96e87e8a22242dc7b827952633707d38f9d08ef2db28c71a14fbb4. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/USSM17400565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e68438d232a13e90f0d0b95109f2ef4c46a296e828f611e42ea34b2a71732df. Chain 2 (Bitcoin): anchored in block 957613 (2026-07-11T21:37:58Z), 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/USSM19917167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d21cc646f88fdc886c84171b5d1901b3c84b52dfa523c6e1bc342eb9ffee616. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/USSM19917169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb2a804ce1a8cf02ce4e39a3d676ee39a946f57fc9e37c1356ecee8bbda4f59d. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T09:43:44Z), 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/USSM10025874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc8a01cb2ffb2eb361c3d38219c39095833d7c7afc7bab8e6bcad56cb53b5fe. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/USSM10025876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d970ae98aaec436ed701e98d7ea99e25fbfb0da436342c3578daba09c83ff78. 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/USSM17500517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78f3cd3e28054175f4214bb2d24610bbc35133c50c7e854485993459f54bc963. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/USSM10025873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1cba0ca8d6e777e00f32df4d41b27bda4c582e2f3e43e9a20a028f048ba2137. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/USSM17600593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7fabe629f26de4eeb80e677b5d3c58540c67a2982448f26dec16aba846cac70. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/USSM10025871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc29d6a1cb9a198ba6f2f849eeb2f6d327f8968310863d650adf47e4d7457df44. 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/USSM17600596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1885cf5dbe1686b58c181261b911aa956d4136992cb53f40a4fd9d9255a354a3. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:58:22Z), 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/USSM10025872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5853706acca08d256eaab43b6b83b5a81c61c4e6bae190f21189c76c2c42e4a5. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/TCABE1256787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf9c9f728a4f99d60930e7e52eb0145719a67045e3a1dc9dda058dfaa92657cc. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/TCABE1256788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23777dce87de0609498e2eb293f9eb7bcba78c4e7b58ea94e686556bc9405278. 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/TCABE1256789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ddd1ec6015983e6c640818c3cdfbb046321447e6ad0c41c7ba10afa2d255f8. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:02:55Z), 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/TCABE1256930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb9501e22afac71f4413136ebbb3d0bc16bbbea46b07a7bea47e756b5dbc8d0c. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:15:20Z), 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/TCABE1256931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bcd3839f0dcee72f314f0d16af3195c495e8f32ccb8c01d5f951ab0096b705f. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/TCABE1256932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e357b2a99ddd5f6c0e8cbd17af78d0f3ebb1881e22b1e2530d9aae3515deb7d. 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/TCABE1256933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec415ea35e6d6ba000fc0cbd68ea384a39eaeb10e6e861980cc899d30a08341. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/TCABE1256935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae032d9377d5eb4779467fbeb57b3d506562c95b8192bd6d3c7f0098000082f3. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/TCABE1256936.
You’ve Got A Friend in Me - Hawaiian Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d657914bb595c652448a744347ce39e09ae967faaa8f932daf15d744b55d293. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USWD10834540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf34211e3374ac0b21f6518eed840cf8c88d3f0617641de02c1c5401f3052fb67. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/USA560946567.
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