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 0xdf15f45fe90699f2abf8dbcc157c685332a2dd289b0d730bb869e5662ed4c978. Chain 2 (Bitcoin): anchored in block 953617 (2026-06-14T09:00:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1b5ee245-1023-4e6b-8297-5245888e97ce.json and https://artists.proofprofile.net/proofs/artist/1b5ee245-1023-4e6b-8297-5245888e97ce.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Next Thing You Know Everything's On Fire
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 0xca0e939025dcf7d7669be8287d88a80e6ff89f1d5a5a5be94d0d08710e3beeb8. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QZTAS2300366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59bede36e95e2f3bc3c9267c0c6b1a8379406d39cedf34c25e08f4eb81bccb3e. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZTAS2300368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d2a349108338cd538214f0e9263d6a48d294a298aa558a27b6940f79a8bdbda. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/QZTAS2300371.
It's Not A Nintendo, Mom! (It's A Playstation)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97812f226443a69f31f1dba00bb87bcdf24372bf3a50323bc683eb2925fa357e. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/QZTAS2300377.
How Is Anyone Supposed To Take You Seriously?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6f6b855fc6531037935f4d48386dc5c239f173ce94bd3c0f30652fb10bdad8e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZHN52485909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a284e56888f02e5846f61e65df2f01e239189d2dc90a76392c3bfe7a454c809. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/QZHN52485910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a0b95fc3e713176ab8f09c590f8fcc18b66c4dcb1128f0adff162749912dc23. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QZHNA2525077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68fa6940ea41b0fbcea70a1a5c76e3f795f908eb7f757a0da0483a282359758. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QZHNA2525079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d59ff44cd9130b19b700457a57871280fbe8afceeb7e0f9385883b8d3a65438. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/QZHNA2525080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f5386e0db697503541b0ceca9b3c407b38a18aa7d3012fc95cd4ea921ae3a8c. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/QZHNA2525081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fbd638433d400e2ed4f6904cff79a70f6543ff7643201251028dca40538a2a5. 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/QZHNA2525084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e2f167ef765e24b311f1c1c463560aa6a3a36e011f78ff95bb93462b7e0207. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZHNA2525089.