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 0x80cbe2911e88c39d66b73843a2367aa3d7cc84535ff7d8c9f51e406a2c778b9f. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f9f7ce46-6201-41dc-8c46-f34741896257.json and https://artists.proofprofile.net/proofs/artist/f9f7ce46-6201-41dc-8c46-f34741896257.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Juice Galaxy (Original Game Soundtrack), Vol. 2
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 0xfa778d193ff4d60bfb07923c46f24794bd83cee0729e000ff58361b4bf0cbc60. 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/GX4R52351267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc46c12bbe74437198efdab0b6bdcdb10693e04798fd4f63b9c65aa32777c602. 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/GX4R52311438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b6a5face8f9c848f6723a4a1e73cfc650f341099beda799904ae29bcf127841. 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/GX8LD2474917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1daad0fcbecc7e0274325013e2678a30f7976112e80a321f9094e9af7bfa8f6e. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T09:10:13Z), 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/GX8LD2435779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb20410433edf417453e97dc08cf6f9e8ada0068c2fec96accd30b8e1057b46. 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/GX8LD2422065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f382be096ec47da7e750e0f77ae11faade36a7406e7a8d4aa6a2726151fb522. 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/GX8LD2435083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1686da28097745b3772faf4324e4264c9c344f5783bebb7ec16d2c0ac6d0643d. 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/GX8LD2420114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x924c93b7808ff2d2360344251bccb9e6272475cc411f144bc77ee65f49eacbc0. 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/GX8LD2414129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5385753399bf9a7b7b7818df6cb9d9928740023bbad9e2cc285a24150cc5b2e1. 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/QT3TB2408397.