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 0x38fe94deb67c7f297db6884e61dec30c485a7e10957d05167953b802a49b0081. 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/277d3e4e-eec3-4614-889e-78e4d5e05cb6.json and https://artists.proofprofile.net/proofs/artist/277d3e4e-eec3-4614-889e-78e4d5e05cb6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Selektor Music presents: Scenesetter - EP
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 0x5b49101baa8287f2d94a731ff3700b1c579bbe63e0d4a0e02e5146a20518b8d3. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QZ5FN2279410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b49101baa8287f2d94a731ff3700b1c579bbe63e0d4a0e02e5146a20518b8d3. 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/QZ5FN2279410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe643cf1b6d1bce074c9a1aba028f496c62d450872192e3db0f85b41df883dd9. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/GBWUL2246686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab9f9a93954194ee965204f79daebe7e2dce3b893de59ad34e67e1c65862011. Chain 2 (Bitcoin): anchored in block 958678 (2026-07-19T05:59:57Z), 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/QZ5FN2392387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c2e828d6bc044b00da2ed80677407bb2a500437b30269e0ef155304d152b234. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QZWDE2351925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c2e828d6bc044b00da2ed80677407bb2a500437b30269e0ef155304d152b234. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/QZWDE2351925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b39227335fcc6d9b31e06123f6d9063ae08de01165114e6db0e43bf78d2ecc. 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/GBRKQ2449197.
I Like the Way You Kiss Me - Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42a2c77a4f0fa347300e2a905f9c69aedd6b685e7409c109ffb50c6ce545c4eb. 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/QZTV32417076.
Espresso (Vandistic Coffee Break Cover Mix)
Espresso - Vandistic Coffee Break Cover Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a47e5769ff09bbc0edd6e8d2e74ad13fc56365fba8e7e8cd94d86c5771c8666. 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/QZWV32456571.
Leave the World Behind (Vandistic Deep Inside Your System Cover Mix)
Leave The World Behind (Vandistic Deep Inside Your System Cover Mix)
Leave The World Behind - Vandistic Deep Inside Your System Cover Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x524da8dcb361016317d360f38df6506ce27d92bbcce3a7340c21d0e4e02db081. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/QZWV32499256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb80b4d0a7910d31f431e562b69c6d01924f5c36902cf0ef338052f7327aac5. Chain 2 (Bitcoin): anchored in block 958602 (2026-07-18T19:28:16Z), 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/QZWDD2585634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x145b7165ccdd1d78f2838bc5c746d34dcc4cf97bebe3dd1f8a37a46619b55f6f. 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/GXBNP2552611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0366800d5c97bb9afc4bbb22271343b152615340793af9c861711939dcf313d. 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/GXBNP2553909.