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 0x7c053b6b352ff08c1790c6788323348bfa4741039022cd074d0875d860978d6f. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1d2e0679-f72a-4e59-82c2-5f8086752e89.json and https://artists.proofprofile.net/proofs/artist/1d2e0679-f72a-4e59-82c2-5f8086752e89.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 0xeaf0b83ea6dcf3ad5c40423b7896c5d2844277d645b3b857352ebedae88b2f7a. 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/FR6V80017445.
The A-Team - Season 5 Titles+Intro (no Voice Over)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5479ce93eb683f11cbc760beda109ed3dd05769e72714339efa9e87efbcfefff. 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/DER751271801.
How I met your mother (TV Series) - Opening Theme Quadruple Length
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce744c1d2e0a826b9e90ae99fd18451035726cdf6e38bcb08045e811874c416. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DER751271809.
I dream of Jeannie - Bezaubernde Jeannie - Titles, no Gongs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd24fd766073872eddc44aba6b0805f4362cf325eea0cbe43fd63b659edbfb85e. 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/DER751271811.
The Persuaders! - Die Zwei (TV Series) - Full Theme
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x160e908c297bd484740ba335fb3d157645eba470fb15418cdc74b09bb310345c. 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/DER751271818.
Derrick International (Music from the TV Series)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9736667b59d99ce60126241456ca80ca4fe76e1b2f5286a0920eb136a6302346. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DER752091102.