Sam Marshall (previously Nicholls) is a fictional character from the Australian soap opera Home and Away, played by former actor Ryan Clark. He made his first on screen appearance on 3 April 1991. Sam
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 0x775f4ab9fcd1072dd542c6d3e791b2a0227242688216f538d680831287fd6328. Chain 2 (Bitcoin): anchored in block 953719 (2026-06-15T01:07:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8acf8741-ff1e-4b85-97e3-8f2d4dec58b2.json and https://artists.proofprofile.net/proofs/artist/8acf8741-ff1e-4b85-97e3-8f2d4dec58b2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Entwined (Original Video Game Soundtrack)
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 0x01401c669a06a2b6fd99d4348d4416f81ded3de7ab533c5559b2ee6accfce50f. 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/QMANG2255138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a83f8120fda1490d93729e6ec4e78dc26256aaca086f60da502b201c842ffcd. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USGSS1900306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d2545807a71cc4b1ec4be6604a3b32ea5afb6b91f1aaa747473eb92c4d2798. 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/QZES52008340.
Astronaut (Cosmic Electronica Collection)
Terra (Orchestral Landscapes Collection)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b5437268b8351d844cafa1663e0dee55d691adfa75132929b3ae7d9ebae3ee. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZAAJ2000543.
Call of Duty®: Modern Warfare III Season 6 (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b22cc4d0f7362137c20f2f16393eafc33e8127d66c8e79d5d7879022fdbe831. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZZ8A2427810.
Pumpkin II (A Bite Sized Halloweenie EP)
Fantastico (An Adventurous Soundtrack Collection)