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 0xb28b442f769714db46c648607dd497556386947146d44b7944c61708c526df35. 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/1f9d820b-1e2a-4919-99eb-cc535dc99ccb.json and https://artists.proofprofile.net/proofs/artist/1f9d820b-1e2a-4919-99eb-cc535dc99ccb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Planet Vegeta 2: Return Of The Saiyan Prince
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 0x09dc12643d24227ef95b43c245e1de6e5d618024fa0696d2d0c8dd2dde067d65. 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/QZES62412119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x472e9b5f56ffd04c4bcdabd345e27d890ad0ac40959172180810ad49f5defe1f. 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/QZES62412120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13b30df270fe892b954afb560c02ee7df8dcb702e5fc6a57f1afcb31640c47fa. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QZES62412121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5408df70f34e11bd408acf35b0c0edf2583ce75705aa058d3157bc59964f1937. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/CH7811114908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72fde25b8917e2b744c306fcc5a23676fe3b560f1abc3a1497b3345275484fa4. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/CH7811114909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca033ca65995fa590c3ec77fe918f20fa73acf5c37f7f49980e3e1f34a88df73. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/CH7811114910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x151b5b67978e06b5cbdeff19475889ffdf00c9aae8c1e41ac1e547e82b129fe8. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/CH7811114911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9e6d7506c4e1e6d36db9358808e5ab6235b2178c4574e414a80d08950c3b833. 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/CH7811114912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef2a0c800590e091bfda4d4e4c9250aa19ff09e6f5271c42d38f283b4f45b0c. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/CH7811114913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x806c9c0bed65b8fb9465dafd632da1a30431a9bbc5230e9e18614f5e40eeccea. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/CH7811114914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e9056b444f3123b222860b8b6e1e1657ef310c121b87d160807a915f120d36. 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/CH7811114916.
Pardon the Interruption IV (Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7687c1cf34bbf3aaca16590a5b11f91f0f2e7079abb9678247998c4be7083652. 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/CH7812539071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2070bae989f919dcb6e4e6157a61d73fc9f20227f0208b6df8043ecd4b28d10. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/CH7812539072.
Where in the World Is Chezi (Mr. Freez Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecccbb6ad563328af9f14513ccfdf8fd4db4cd270292588f939660bc15941968. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USUYG1353528.