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 0xf9f519385914ad4b34cdbdb88923ba50f762c49a1e6742f14628592e52c814b5. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b9b87ff4-56b8-4ecc-9a48-c51aa67a58cf.json and https://artists.proofprofile.net/proofs/artist/b9b87ff4-56b8-4ecc-9a48-c51aa67a58cf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Baldur`s Gate 3 Theme (From "Baldur`s Gate")
Secunda (From "The Elder Scrolls V: Skyrim")
From Past to Present (From "The Elder Scrolls V: Skyrim")
Ancient Stones (From "The Elder Scrolls V: Skyrim")
Far Horizons (From "The Elder Scrolls V: Skyrim")
The Streets of Whiterun (From "The Elder Scrolls V: Skyrim")
Sonvgarde (From "The Elder Scrolls V: Skyrim")
The Fellowship Reunited (From "Lord Of The Rings: The Fellowship of the Ring")
Zelda`s Lullaby (From "The Legend of Zelda")
Concerning Hobbits (From "The Lord of the Rings: The Fellowship of the Ring")
Into the West (From "Lord of the Rings: Return of the King")
The Elder Scrolls V: Skyrim Collection (Slowed & Reverb)
The Elder Scrolls V: Skyrim Collection (Nightcore)
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 0xdce7a7f2f5bf0c58daaefe2bca375cf6ea549520f3cb943ac9abf3ca34949049. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/QZPJ32320554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ba371653e1affeb128c2782e357145e171e9febc75d393ddb1ae92d9211f885. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZPJ32365064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x149a8c78b9d96a6db5b137c38a9996bf578e7e31f1048b117bdf440572206cff. 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/QZPJ32366707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8c2cb69db9de74e3e4e52874feaf8abae84ef47e193b7abce291726a9145000. 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/QZPJ32341687.