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 0x5ecbde786d68ec7ec217ee8b3484ed30be76cbc0599ebc534c12183990a70752. Chain 2 (Bitcoin): anchored in block 953627 (2026-06-14T11:43:04Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/301ce732-1c19-44c7-b373-24c2d18f3d92.json and https://artists.proofprofile.net/proofs/artist/301ce732-1c19-44c7-b373-24c2d18f3d92.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
We Will Panicking Forever, This Is Paradise
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 0xe65acfd9c081af57ff9fe4eb35669b60e40ebd101f6bb8ac3920cc51cb667964. 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/QZRP52191615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x498ef54175a33b3715aa854f96dcade878c8b0bcec8f4f2e256df9ad5d317c03. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/QZTAT2123243.
EXPORT001 - Juri Heidemann EP (Inc. Kwartz Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0891bc1b3116b76170c5bddc658ab68dde587546ecfded369a2b50c364e7c5bd. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/NLCK42211717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x928fdebbaa1ed69ad249b00b5fe24be2dc1d3777ce2247ea35dfe02e262aba63. 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/DEH742222582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf09f416cc9a759984a6605cbd5edc72a1b7cb8364066b911186ddb844c4f2c32. 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/DEH742222584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b4b25e67da0497c0d2c65ad4d340f4556cf0f7a11e6958660bac522ec378b2. 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/NLCK42403160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x160338c9526243d21eaeb07b8b8902303f04deb73fe165f057b5b200d9251818. 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/QM6P42539339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86e8f210ffbbcf39ee3da4a33f9afcdebab1d07718b8cabb7ab1ba01905acc4e. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/QM6P42539341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f8e1fc6f5e1e118f03e5459b2f0184d8e8aa6fed79642102ca33a356d3a33e. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T05:43:55Z), 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/QM6P42539342.
Global Underground #45: Danny Tenaglia - Brooklyn (DJ Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f27700b438bfcfc038586dbf9c2803166b98d1588c2e8409aa43d39d75216e7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBHFW2300070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x586775db443fe82cd0dd314677e161cdff850d9b1e1a5b08b452efc1772195a1. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/NLCK41091880.