thumb|250px|VHS Collection performing at Irving Plaza in March 2019 VHS Collection is an American Indie rock/Synth-pop band from New York City that was formed in 2015 by Conor Cook, James Bohannon, an
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 0xd6b071e740314bde9fb75cadcf482edfb612a23578012a5d5c67a2a1988e1223. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5af7ad0a-1b35-4f1a-a982-93adefacaa66.json and https://artists.proofprofile.net/proofs/artist/5af7ad0a-1b35-4f1a-a982-93adefacaa66.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 0x3ed582f6cfb56ab29d188b5bece01eddbfe929ae370145d3b504e42808417f6a. 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/TCACQ1659453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c37e07bb2b328e4e3c1d78dceb35bc9405215bfbcfaa42691c7b959b24dda9. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/TCACX1740622.
Waiting on the Summer (Penguin Prison Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdccc2e53cd767d628df0c7ca3f4e0a863b3344d7497a202a9f1a945e45e8e081. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/TCACZ1798681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd518b873b602b3dada68b590f19ae33edf95080e72d3ffc28986343902c34a23. 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/TCADH1721616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8629af6d771b7530832253cdbaef754b9201b773c1e23bee3e424b685a4d666. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/TCADX1823710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c2d4dcb9f352c31c84afd6dfb2a875ff0ee0b863c45a210bee03ba57ebadb0. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/TCADX1823715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f509a4537a22bfc2668e8ef20951760ff4a99b607c2a92f7752010a95b93ba. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/TCADX1823716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x255d71d8e59367c068c98b0721afb17c13ec72f9ceef5fb3f020ee438f8bd962. 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/TCADX1823723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe8cb9f0c8127820a8b60a1ed1d0302180ae7788cb2b5e0901cf21dd7b9d04c1. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/TCADX1823724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52deaa3df63d6a73b919a0e940edef45f74acaaedc61a18d9b66bdcd7c58f251. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:35:54Z), 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/TCADX1823726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb055034cb4c5b3c41911c56ffc1e30c2f5497a92b2004b7e909a54ed7260c0. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/TCADI1790646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3021090cbd221cb68406f7e20a0d532c93f44cd7dd9f5a29f079e3d6fabb1f02. 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/GBPVV2003328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c8bb92873c7ff4feecec6dfb693c03b9fd7382796505bcc68bed39ad333a9b. 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/QZNNR2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7847539a3b740b2399b50a6c8c4ffb7cea12738d7b7c91930e189ba1752e305c. 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/QZNNR2100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0174ab18b50c0e99fe9a38b57f162e7513c764a9b3d955eca4daf32df54c6286. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZNNR2100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2b294583b77aa05773de5ea3e023044160cfb51ccf63cbb4e7081ddb07319a7. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZNNR2100014.