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 0xa85c986a50916d927a2199a4e64de6153fd902061046bdebab195f01216d1587. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d557927e-de49-455f-83d4-1846eb0676f6.json and https://artists.proofprofile.net/proofs/artist/d557927e-de49-455f-83d4-1846eb0676f6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Welcome to the Nightmare - an All-Star Salute to Alice Cooper
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 0xdc412524d65c775dc56397a0eb2ec030d2ac7bddcca294f2188d3934d9ad4eb5. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USA370577282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2acb8928b8d3bfbd834dfed396fc33df113db4563a60c5513000e010afea8837. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QM6XS1807541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b368a4779d8d3401e87353452e46b9f419d16700269044b5f9f0a2122e107cb. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/USA370582296.
Humanary Stew: a Tribute to Alice Cooper
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0609ccc45a6734ee243170c4e925cc8d6b9ab80c1a1cc9d431ee6f5c3fb77855. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/USA370574069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5affcf891825a05300076b552d028b2b258961e08f0dd03048f491068418215d. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/USA560619540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x457ab803ee17d62e2ae241f75761b0adebdf68090eff51f53cd16657041afa9c. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/USA560619543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4350ec5b56c073e214ab4ec0481a017cd0e13beca1a4f911cc1a5f166ad72421. 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/USA560619545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb037e1303d4c1912f69ed3c45cdb7c048746254d9215f976c4e1448bed9bc670. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USA560619550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabf08aa678411ea1489c2a80e2fc573d35bd4255f8201f6dee24141ec77206a1. 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/USA560623814.
We Salute You: an All Star Tribute to ACDC
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd14fc10f7a29e161e489b6deb0b39674a8a551f678d3a05fc9c0a8c8a32eff38. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/USK6M7416572.