Mark McKenzie or Mark MacKenzie may refer to: Marc MacKenzie, a character in Family Affairs Marc McKenzie (born 1985), Scottish football player Mark Mackenzie (1888–1914), Scottish cricketer Mark Mac
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 0x230923d3639b5a18e8b216be54dd3697533b91d7d5bbdec4839a02039d8b53f9. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/01f09473-0203-453a-a993-ce3fd8f839e4.json and https://artists.proofprofile.net/proofs/artist/01f09473-0203-453a-a993-ce3fd8f839e4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dragonheart: A New Beginning (Original Motion Picture Soundtrack)
The Ultimate Gift (Original Motion Picture 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 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 0xa7ac981b6d4de2604b4decf946e8671f6060a4e709d6401f6db11a491088fe62. 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/US3M50780918.
The Last Sin Eater (Original Motion Picture Soundtrack)
Jamaa Suite (World Vision's Jamaa)[Original Score]
The Disappearance of Garcia Lorca (Original Motion Picture Soundtrack)
The Greatest Miracle (El Gran Milagro) [Original Motion Picture Soundtrack]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xada6d71d58e64517fb3bb8ffa32e41ec8f7d94a8197d4e59b6017d3f13966944. 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/USHZC1100007.
The Lost Child (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca415ecefcb991396d0fb4739d099fbeb2c0080b6c6cd48c69dbe4ae168eb84. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/USHM21270132.
The Ultimate Life (Original Motion Picture Soundtrack)
Frank and Jesse (Original Motion Picture Soundtrack)
Dragonheart 3: The Sorcerer's Curse (Original Motion Picture Soundtrack)
Dragonheart: Battle for the Heartfire (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8052e2eaf788e429f1ea867290a733237df38dcf88e730a1da9c1af3872b1ea. 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/USQ4E1702831.
Max and Me (Original Motion Picture Score)
Dragonheart: Vengeance (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd44475a13fb52164ae5a13e92bba38479a023638a919cff04a2edf9f3231b4f. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/USQ4E1905243.
Look at What You Have Left and Not at What You've Lost
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb3d42de2149f75b6203263ce4a679460daae82d9fd631f1b0941860b0a84a19. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/USQ4E1905248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x453102882e6465818bfd38413585e781897fdcd1cbe0164ac77943a9e73e0d87. Chain 2 (Bitcoin): anchored in block 959355 (2026-07-24T03:24:16Z), 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/USQ4E1905249.
Prancer: A Christmas Tale (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94bb9e80d0b14038bbba675f13400d0fedae827c067f4f0ab23e6d13a58bb0eb. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/USHZC2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b3c3e7d500d5b776cf4320b39ef47369aa7f74b6e09c8fea05eeba59490cf15. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/USHZC2400004.
I Will Walk With You Through Tough Times
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8a1d15bdd1cf239f8c32e1978a9d62f7abbf99d2a9954f98d52a1301c887cda. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/USHZC2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5676a676c891138be746c77b089ceb9cdd6dd01bcaf03aaf0b14ac356cb2bfe. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/USHZC2400010.
Galactic Anthem - From "Stitch's Great Escape"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46d24585bceb296da2176cb4f7584f11d0ceaaa71bfa34f849d33826e69bd635. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USWD10629980.
Up Your Alley (From "Star Trek: Enterprise") [Live]
Star Trek: The Ultimate Voyage (Music from the 50th Anniversary Concert Tour)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x552fec9cbecf6457e6a7f18c52a30bccf6121086f27b3f64d5abee262e8b6994. 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/TCAEW2068466.
Benedictus Deus - Extended song from ‘The Greatest Miracle’
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a38bae9a82f20470f4633d1a323216cf339a2673a9221007e164e2fbac8f901. 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/GBHKE1800201.