The Free Design was a Delevan, New York–based vocal group, whose music can be described as sunshine pop and baroque pop. Though they did not achieve much commercial recognition during their main recor
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 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 0x7d695a21b905bf6f45d63a7b0acb0fe292067498ded780bbe77f71f018b65f29. 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/691ae0fa-698a-4b2c-8369-e25ce08f0aa4.json and https://artists.proofprofile.net/proofs/artist/691ae0fa-698a-4b2c-8369-e25ce08f0aa4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Best Of The Free Design: Kites Are Fun
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 0xa0d761e6f3740a73f4a9d6ba04cd28842d83f1f49527e9c0730f9377dbaa2f7b. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:27:20Z), 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/GBBLY0604764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe4ce4de912605b25aede168b8b248c54b12b87c60373eec06a64c5e462724d. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:10:43Z), 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/USAN40600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeace5777ea95bc695a4ca79ad565a4795985018ed891324a65fd45b888e9dd04. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/USAN40600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b8a0f74c06d2bb93d06b40fef466194539f9d9cdc68b014c0b6dc3258cc4f4f. 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/USAN40600011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf34102c7ee0f14e2cb0ef95f2b11fdcd331f0ea901fd56f12a45229dd1c87e89. 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/USAN40600041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x359c426ba3d873db8c232db905d726baec184f7b4d6ec3fb5601dee953555d2f. 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/USAN40600061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7b74eb65208148fcfb54218cce872cb3d9a26c78c5185528ccf0917f0a27281. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/USAN40600050.
Can You Tell Me How To Get To Sesame Street?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6216d051584aa26a4902ff6f7c8123dfcbe75dc7c814e9da0c9ad26a2dd257e3. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T21:01:03Z), 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/USAN40600051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aba9d536b502ab6b4f99788ee2b0627d1f8a30365b272259e2797a1eb4de869. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-22T02:27:54Z), 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/USAN40600052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5281e8475a1b5324db8d1fe6d8e86b02b4822faaceb353bdc415bb45bf5a7075. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/USAN40600053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02538e93f06c2e6f4d2f6c722cf1703a65789d40e3f286c76764a1582b59b156. Chain 2 (Bitcoin): anchored in block 957709 (2026-07-12T13:52:43Z), 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/USAN40600054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5521efa6e474d8fbb9c95f34a538b3019f8a271d3c250ad4d6176ab5d7ce63d5. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USAN40600056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c441eb2d522cd9b867539ed9dae66d048350bbae9345b90368bd5898382f0ee. 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/USAN40600057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x393e203b6325e1d9677f67b31aa6db149a2156ea8506799e9c58619c13dc28d7. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/USAN40600069.
The Redesigned Originals, Recorded by The Free Design (1967-70)
Butterflies Are Free: The Original Recordings 1967-72
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e3bc5901a678860e96c3c15e5a7f3f1a1a6055acde28c33a79bdb1b69db8f2b. 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/GBBLY0604763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc835dc2af839a075013dea21b8de37d737bb15068604063971a035ffdcde79. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:06:42Z), 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/GBBLY2006042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x936ae0643104ad895ca57dc5a47acb68d4551e31f8ff1f8449c4ae10b530ba81. 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/GBBLY0604765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4c23bc9157a989d518ecf1ebe147dc5e945bec79fd2cda9ae31eed80e5b356b. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/GBBLY2006072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d761e6f3740a73f4a9d6ba04cd28842d83f1f49527e9c0730f9377dbaa2f7b. 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/GBBLY0604764.