The Gardiner Sisters are a family musical group from Concord, North Carolina. The group originally consisted of sisters Hailey, Allie, Mandi, Lindsay, Abby and Lucy Gardiner. The sisters have over 125
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 0xdf4e8da2c28eec32b1fdd6c54e920369a7743e134fdeae3263399b4be51dbb50. 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/67b74e37-ea00-47cf-a91b-4eee296141aa.json and https://artists.proofprofile.net/proofs/artist/67b74e37-ea00-47cf-a91b-4eee296141aa.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 0x874040f4b464a2d1cf87ac30d2c1126a6587d2b2b98db0a51f8da68cf2921b23. 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/USE830909101.
Pirates Medley - Peter Hollens & Gardiner Sisters
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffb192ee77ab90d78f6148f79a0948d4291a175dc34f667c4be7b66950d86ca7. 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/USE830909379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d9e4ebda69d8d3bb6944f462109212ca6c34e676333442815b34fff521cc1e. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USE830914173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6e0f41fefc96e58d4fd26e7eb3f1a36aa86a33d129b46b52582b8e3ea641205. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/USE830932443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe12ac99c6a668b83ae42570b1ec7a99921fdeb98968e6994cc5233934662e2. 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/USE830967377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf28281e086ffe7686495ed7d860016ccc7580f0b7e82935417632c558afb6b. 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/USE830983540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac58c7d434da84ea471c5600443a2c19cfe53ea7665e44d72857957960dea21. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/USE830982541.
I Was Made For Loving You / Please Don't Say You Love Me
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe398721207582aca449613586d1d85e1c369957bc6e4d7e9efcccdee62c2db18. Chain 2 (Bitcoin): anchored in block 957752 (2026-07-12T20:53:32Z), 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/USE830999332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf172b6a75299861f81da98fb69a45dbcb5f073758833cce0223ddb167d6f2592. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USE831512740.
Have Yourself A Merry Little Christmas (Live A Capella)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b3bb3cba912384f07548be50ba5198fecfdc5ba29f9630771058a2ef4ce044b. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USE831518739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa11abed1b16995f8db80bdad2917e5cfce8ad67d5f9f89e320281da7937fb21f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USE831539194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68091ed02eeeccf94bbb3b0a1fe7f3e4d26aa63ae706311d707d9f57b402d28c. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/USE831541327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb02978ff4c46dd3ba08095549aa124a0820da7b86ba45ce6e15e50e1fcf8ec4. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/QZ22B1801441.
Chillin' Like a Villain (From "Descendants 2")
Don't Matter To Me / Hold On, We're Going Home
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccfdb40bfeb5e4585b3e3d2652acf6d6cbb265b54415e2a60d518b634c3cda33. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZ22B1917580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbddeb0409bf72aca3dfa31ca28cfb2be54a48dd98cef3f38724048b2b4896fed. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:48:17Z), 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/QZ22B1917581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe323473fe4f7725230f983ab3b05e1b2b9be7a532e48a90fc9af6df5eaf35a7d. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USE830940518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdd7605abff130c3a3784414d3ae57672c86618743383ad03efbc423d14bdcf2. 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/QZ22B1917582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6de4b9566d8252b92b2df118515a139c8ff81f2737fbbbfa4c80d99a88ab46. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USE830905470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x380f6c2420c35b6f4fa52b9b6b230f8fd84d41f99de16862695413ff03a5391a. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USE831565050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b9f5f67f0763a55e736a877d85e116ed669d768cf3a1742a8b97dfc297be5c. 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/QZGWW2090838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b42b07b39f09e0a3b779c6fc60e31784c73a7436752662229093f886f5ec53c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZGWX2125115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf31de347e86fe844138750b27b06e9ee2708b07a6099f38f5f98d610d47af118. 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/USWD11676079.