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 0xce512b26ad2f0ecd70be6f087e390b705a2c83bf3fbd09fef532c09ce352776a. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f279f665-b707-4877-a6d3-2f28413038e4.json and https://artists.proofprofile.net/proofs/artist/f279f665-b707-4877-a6d3-2f28413038e4.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 0xa1ebd97f6e4bea9247a94d3a9e9bef1efe13c1441db50a8aa913989f84e261d8. 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/DEBE72100884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49f425461d708076a1c80d0c9d275a156178cdf524e12f298cfb20ce140bb193. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/DEXO32235895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83328ada28191d5902db2b84397becf1f3a5f9b68eec82cb6dacf6049cd799a2. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/ATDY82300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf360346f82810a00188eb7096c9c757dd78386093892c5939a5e27f9e07db846. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/SE4MF2300581.
Do You Want Some Acid? (Green Lake Project Remix)
Do You Want Some Acid? - Green Lake Project Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bee2b073c1d6ad062b6a0163f1c1807139a3e5224eea172c46355c6ac61529d. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T22:49:45Z), 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/DEU672400049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab4adaec7d1ec3668e612c3dfe0185acdf4b672054ad9702abff1e39f7a306ec. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEU672400047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6750f71e458bdbd90dc25261cef7c9d11ecafe5cc8cd2dd12e86fc0df03089ba. 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/GBEWA2307240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce4dbdbc3a233c39bd15e59f544965c65e9560e1199b68eec78863c0a2c3f3c. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:10:11Z), 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/US83Z2429408.
Schneeweiss 14: Presented by Oliver Koletzki
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49f425461d708076a1c80d0c9d275a156178cdf524e12f298cfb20ce140bb193. Chain 2 (Bitcoin): anchored in block 959138 (2026-07-22T16:42:07Z), 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/DEXO32235895.
Tendo - HOVR's Double Time Remix - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc64cbb01200151611cc2882c8f60ad29e5d5ed67bbb80fd70cabf7d3e53f85c8. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US83Z2217891.
Anniversary Collection (by Stéphane Pompougnac, Charles Schillings & Ravin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe340d383cd97407f2d4d79ac95f1efcb5016e77489617a48f3f3207444cda198. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/US83Z2128290.