thumb|The group in 1957 The Cleftones were an American vocal group formed in 1955, who were then called The Silvertones at Junior High School 40 in Jamaica, Queens, New York City. Formation In 1955,
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 0x5fd920aaebe6ba0c3c45612aaa033c2588ce04fa9a1b79150ddb0a5ec7b6d0b6. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4925d57c-960f-445e-8fa8-63aa902296e4.json and https://artists.proofprofile.net/proofs/artist/4925d57c-960f-445e-8fa8-63aa902296e4.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 0xf007a69a17a27a9901caa990883e3c3ffcb3e7487058e8f3eec7b1523f020ab4. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEXO52482158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea7e31d8b875115f74f3e351fd1043a97fb4215a4e4b2985153f6f8e55e8e74. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEXO52482162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff53ed03022fc961f6980b8066e796190a1c62bf90bb06383fcd7c86aff335c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FRX282344879.
For Sentimental Reasons (Remastered Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b3db9e0b3c74554cfa55116cf1440bcfaa619439607f9e963b5139aa251cd20. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T00:43:24Z), 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/US38Y2424588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4b8d927290e06b491aeb4b6c07e966c401b2d5412687baeff23997d4ee7800e. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/DEZZ42171957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fcd9b81ffce4aed5d557af3cf8f309ae240b8cb1d1ed6b1a18dbf4bd29e07fc. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEZZ42171958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55e2af72016d84512d9d2e4b3f2f7e16b28b8f08e500063ed4b923ab20da245f. 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/DEZZ42171960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf50a9029e01c7b1385c0bfbba347aa2eda8c5bb9527010cd5f472fd1480b9bf. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/GBHFE0631841.
The Cleftones Meet the Jive Five Doo Wop, Vol.1
The Cleftones Meet the Jive Five Doo Wop, Vol.2
Happy Memories - The Greatest Recordings Of The Cleftones
Happy Memories - The Greatest Recordings of the Cleftones
Little Girl (I Love You Madly) : The Old Town EP
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6dc14bcc85c65a09b3f965b895533a7b5d29d5600bb0db2fcea05a3b7d1b689. Chain 2 (Bitcoin): anchored in block 958351 (2026-07-17T02:38:05Z), 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/NLG620497481.
Little Girl (I love you Madly), The Old Town EP
For Sentimental Reasons: The Best of The Cleftones
Can't We Be Sweethearts: The Best of The Cleftones
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb47fac9c3afb0d03b18b226eb1302abbe733b9064fdb6b257744c3075bb9c23b. 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/USRH10300808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ae4764306a629af82163ccce39807da318b31c8e40213d60eb1231a8654897f. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:21:33Z), 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/USRH10721368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x466ec8ce61d7a97758b06943ec70238429910b77dcc9c94caa0279cbdb48d3de. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/USRH10721379.
The Diamond Collection (Original Recordings)
Anthology: The Deluxe Collection (Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7017d1e8e52673394e7fa3cf96e964c1c35c9544bf62957ddfd9d1f422b23b2c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/NLHR52102138.
Earth Angel (Lovely & Soulful Classic Collection)
ハート・アンド・ソウル + フォー・センチメンタル・リーズンズ
Essential Classics, Vol. 478: The Cleftones
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x535e067253ee74ca4ff30d7bd709141748933da2e5db3cfd2df333f452921b35. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USDEI7604180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x466ec8ce61d7a97758b06943ec70238429910b77dcc9c94caa0279cbdb48d3de. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USRH10721379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x883a5d7db20a7aa5adf755c1379e95a768f8be62f7fa9f9c4e8d28d1110f517d. 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/USRH10126348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3297ae3094c552e46be92973b17b236bb49ab472cfaed574fe6fb700d545ee. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/GBGQH0602078.
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