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 0x45d9c71497925527fd83a5d3182c5b67da3c399847732dd5f7bcf4e26b335e01. 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/50ca5363-ef2d-48de-83d0-40262f14be62.json and https://artists.proofprofile.net/proofs/artist/50ca5363-ef2d-48de-83d0-40262f14be62.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 0xfe2e62edef2f74e033a198e48411fb2ad4f0f645b21f33f2e102b0a71fedff99. 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/TCAHM2350426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6ac12145956a504cf242653180356dcf0f7943a4973f0e2278227c2b1be686. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T04:37:43Z), 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/TCAIJ2478666.
Collide Again (But Make It More Hopeless Romantic) [Piano Version]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11da15eb44b95d19ac4a92abffaa83ee2213c592b9e7c869d81f97bb385b38a1. 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/TCAIL2415128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd71322447cff4c158ef2cc66f7b9f8ae7ef6ac3b0ac6760da737ed6e72df6523. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/TCAIF2430170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e85d14148a071728975b8450191ea5404fdf0cd2098f8b154abe36bdc60ba9e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCAIN2407120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe2e62edef2f74e033a198e48411fb2ad4f0f645b21f33f2e102b0a71fedff99. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:19:06Z), 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/TCAHM2350426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddd7d5f0fc832e60291d75274063778df7e4402b4a2fda734b25249dd2e1010e. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/TCAIL2434760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f7d523c0a308195a4bea1ea7397ed66823836465437584dfff90d765ff81d4. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/TCAJH2503988.
I'm Sorry, I Wasn't the One You Could Call Home
I'm Sorry, I Wasn’t the One You Could Call Home
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc6d61dd1629b34f468e6873c3b69afbb66439289e5401ca007e2d98e204946e. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/TCAJL2554815.