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 0x1cbc20e5ebc7dfdf9d5cacc1211e889fefd492b3f29d18a6b6d54edcea09b154. Chain 2 (Bitcoin): anchored in block 953765 (2026-06-15T08:55:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bb4c62c1-bf0e-4a2f-8110-610aa3d832ca.json and https://artists.proofprofile.net/proofs/artist/bb4c62c1-bf0e-4a2f-8110-610aa3d832ca.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 0x0d4e5890888d7db2ef7843d597db56c649a576e6981ae373a50fd5965e6294d3. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/GXD7V2578860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f36f84876a2cac28ab3c9cae7440d6aa6035da7fb06ea2a82f91fe1c774fea0. 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/GXD7G2570878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06e262d8f51a10ffdbba2a4af456a0a1ed1c08dff3f75df478e9e3fc38615a32. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/GXD7G2591259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d6da96eaf291350109d129efc9f10d541a72ac264dc9fda306623ad100cb452. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/GXD7G2522488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0610a23448eeacc4cc0ed72e1c2a6db32dd39c693568ca1a72c318740479beb. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GXD7G2504001.
SprunkiRetake HumanNew ORCHESTRA Phase 8
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cfee0d53ed10bf139842b362413b5b0ca4c9e5ffe36c6c48580e48771863555. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/GXD7G2501330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8081bf5cec6ce7ce5dc1d858d87d8f326e8c676bfe24c42625ad8c58947146f6. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/GXD7G2509772.
IncrediboxSprunki Happy Not Scream Phase 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd49f813b9f8453cea2296de3a0cb2ae72bfc0950b3cb1886603b99ba23ba991. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/SGW502510689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4954fdbe3ab6d05487a54d50c51ffbe57d84556ed3b34794db231627fe4329c7. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:47:01Z), 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/SGW502597739.
Sprunki The Deer The Owl Mr Match Phase 4