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 0x91710a280be5481022cbdbe987988dc0c7fe2a06c74705ac8db2186cd106258c. 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/f17e145d-e8d3-43d1-bbfd-87071c74766c.json and https://artists.proofprofile.net/proofs/artist/f17e145d-e8d3-43d1-bbfd-87071c74766c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Avengers Main Theme (From "The Avengers")
The Master of The Mystic - End Credit theme (From "Doctor Strange")
Agents of S.H.I.E.L.D Main Theme (From "Agents of S.H.I.E.L.D")
DC's Legends of Tomorrow Main Theme (From "DC's Legends of Tomorrow")
Man of Steel Main Theme (From "Man of Steel")
Jessica Jones Main Theme (From "Jessica Jones")
Who's That Girl (From "She Hulk Attorney At Law")
Wonder Woman's Wrath (From "Wonder Woman")
Guardians of the Galaxy Main Theme (From "Guardians of the Galaxy")
The Defenders Main Theme (From "The Defenders")
The Incredible Hulk (1981) Main Theme [From "The Incredible Hulk")
Black Lightning End Titles (Extended) [From "Black Lightning"]
Spider-Man Homecoming Main Theme (From "Spider-Man Homecoming")
Batman 1966 TV Show Main Theme (From "Batman")
Marvel's Runaways Main Theme (From Marvel's Runaways")
Batman Beyond Main Theme (From "Batman Beyond")
The Punisher Main Theme (From "The Punisher")
The Green Hornet (1966) Main Theme [From "The Green Hornet"]
Captain America (1966) Main Theme [From "Captain America")
Defenders Of The Earth Main Theme (From "Defenders Of The Earth")
Captain Marvel Main Theme (From "Captain Marvel")
Iron Man (1966) Main Theme [From "Iron Man"]
Spider-Man And His Amazing Friends Main Theme (From "Spider-Man and His Amazing Friends")
Spider-Man (2002) Main Theme [From "Spider-Man"]
Hellboy 2: The Golden Army Main Theme (From "Hellboy 2: The Golden Army")
My Name Is (From "Shazam! Trailer Theme")
Hooked On A Feeling - Awesome Mix Vol.1 (From "Guardians of the Galaxy")
Iron Man 3 Main Theme (From "Iron Man 3")
Spiderman Cartoon (1967) Main Theme [From "Spiderman Cartoon"]
Batman (1989) Main Theme [From "Batman"]
Marvel's Spider-Man PS4 - Main Theme (From "Marvel's Spider-Man PS4")
Spidey and His Amazing Friends Main Theme (From "Spidey and His Amazing Friends")
X-Men The Animated Series Main Theme (From "X-Men The Animated Series")
Driving With The Top Down (From "Ironman")
Making It Up As We Go Along (From "WandaVision")
Invincible Main Theme (From "Invincible")
The Mighty Thor (1966) Main Theme [From "The Mighty Thor"]
Infinity War (From "Avengers: Infinity War")
Here Comes Elastigirl (From "The Incredibles 2")
Do You Realize?? (From "Guardians of the Galaxy Vol. 3 Trailer")
The Amazing Spider-Man (1978) Main Titles Season 2 [From "The Amazing Spider-Man")
Marvel Studio Fanfare (2016) [From "Marvel Studios"]
Rapture (Soldier Boy Rap) [From "The Boys"]
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 0x49124e4a90ac61817560b951e2adb971f8f9a2db58916e4448620607f5c2ec2f. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T14:12:28Z), 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/QZTRX2224834.
Get Your Cape On (From "DC Super Hero Girls")
Centurions Power Xtreme Main Theme (From "Centurions Power Xtreme")
Sunflower (From "Spider-Man Into The Spider-Verse")
Do Ya Wanna Taste It (From "Peacemaker")
Marvel 2021 Fanfare (From "Marvel Celebrates the Movies")
The Bionic Woman Main Theme (From "The Bionic Woman")
Sweet Child O' Mine (From "Thor: Love And Thunder")
Spider-Man 3 (2007) Main Theme [From "Spider-Man 3"]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd06830ab75e0233f736e741455943525a59631a106396fc17a7ac23ec42b19ef. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZTRX2228127.
Bones (From "The Boys Season 3 Trailer")
WandaVision Episode 2 Main Theme (From "WandaVision")
Batman The Brave and The Bold Main Theme (From "Batman The Brave and The Bold")
Faster (A-Train's Song) [From "The Boys Season 2"]
Louisiana Hero (From "The Falcon and the Winter Soldier")
Is She With You (From "Batman V Superman: The Dawn of Justice")
The Batman Main Theme (From "The Batman")
The Batman (2004) Animated TV Show Main Theme [From "The Batman Animated TV Show"]
Spider-Man Far From Home Main Theme (From "Spider-Man Far From Home")
Smells Like Teen Spirit (From "Black Widow")
Cheek-To-Cheek (From "Joker: Folie à Deux Trailer")
No Woman, No Cry (From "Black Panther Wakanda Forever")
Let's Keep It Going (From "WandaVision")
Aggressive Expansion (From "The Dark Knight")
You Can Get It If You Really Want (From "I Am Groot")
We've Got Something Cooking (From "WandaVision")
The Umbrella Academy Main Theme (From "The Umbrella Academy")
The Incredible Hulk (1978) - The Lonely Man Theme [From "The Incredible Hulk"]
The Submariner (1966) Theme Song [From "The Submariner"]
The Spectacular Spider-Man Main Theme (From "The Spectacular Spider-Man")
Song To The Siren (From "Zack Snyder's Justice League")
Go! (From "Teen Titans Go! To The Movies")
People Are Strange (From "Morbius Trailer")
Marvel Studios Fanfare (From "Marvel Studios")
Knock, Knock, Let The Devil In (From "Venom")
The Monstermans Theme (From "The Thundermans")
Supergirl Main (1984) Theme [From "Supergirl"]
Something In The Way (From "The Batman")
Run It (From "Shang-Chi and the Legend of The Ten Rings")
One Is The Loneliest Number (From "Venom: Let There Be Carnage")
Fight As One (From "The Avengers: Earth's Mightiest Heroes")
M.O.D.O.K End Title Theme (From "M.O.D.O.K")
What's Up Danger (From "Spider-Man Into The Spider-Verse")
Wanda's Theme - End Title Theme (From "WandaVision")
OOOH (From "Harley Quinn The Animated Series")
Blinding Lights (From "Ms. Marvel TV Trailer")
Thor 3: Ragnarok Main Theme (From "Thor 3: Ragnarok")
The Newlywed Couple (From "WandaVision")
The Justice League - Logo Theme (From "The Justice League")
Never Truly Vanish (Starlight's Song) [From "The Boys Season 2"]
Moon Knight Main Theme (From "Moon Knight")
It Ain't Over Till The Wasp Lady Stings (From "Ant-Man and The Wasp")
The Incredible Hulk (1966) Main Theme [From "The Incredible Hulk")
What If...? Main Theme (From "What If...?")
She-Hulk Attorney At Law Main Theme (From "She-Hulk Attorney At Law")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49cce8bc6cc4fed01b961dd06fd945c1642fa88822afc19fc95c9bb3da20d4d9. 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/QZTRX2237716.
Freakazoid! Main Theme (From "Freakazoid!")
Lift Me Up (From "Black Panther: Wakanda Forever")
Goodbye Yellow Brick Road (From "Ant-Man and the Wasp: Quantumania Trailer") [Epic Version]
Black Adam Main Theme (From "Black Adam")
The Superhero Squad Show Main Theme (From "The Superhero Squad Show")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe35933da1cb39d79be9c29d898e72535218ce5ec710440b9cdbe4ed91c6e8940. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/QZWDE2237738.
Time To Spidey Save The Day (From "Spidey and His Amazing Friends")
Big Hero 6 The Series Main Theme (From "Big Hero 6 The Series")
Kiss From A Rose (From "Batman Forever")
Marvel's Spider-Man (2017) End Title Theme [From "Marvel's Spider-Man"]
Spider-Man Unlimited Main Theme (From "Spider-Man Unlimited")
Who's The Batman (From "The Lego Batman Movie")
Spider-Man: The Animated Series Main Theme (From "Spider-Man: The Animated Series")
Beware The Batman Main Theme (From "Beware The Batman")
The New Batman Adventures Main Theme (From "The New Batman Adventures")
Batman The Animated Series Main Theme (From "Batman The Animated Series")
Legion Of Super-Heroes Main Theme (From "Legion Of Super-Heroes")
What's Up Danger (From "Spider-Man Across The Spider-Verse") [Epic Version]
Spider-Man: The New Animated Series Main Theme (From "Spider-Man: The New Animated Series")
Secret Invasion Main Theme (From "Secret Invasion")
Batgirl (1967) Main Theme [From "Batgirl"]
My Adventures With Superman Main Theme (From "My Adventures With Superman")
Agent Carter Main Theme (From "Agent Carter")
Wonder Woman Main Theme (1975) [From "Wonder Woman"]
Superman - The Animated Series Main Theme (From "Superman - The Animated Series")
Justice League Unlimited Main Theme (From "Justice League Unlimited")
Iron Man Armoured Adventures Main Theme (From "Iron Man Armoured Adventures")
Bury A Friend (From "Madame Web Trailer") [Epic Version]
Hotel California (From Shang-Chi And The Legend Of The Ten Rings")
Am I Dreaming (From "Spider-Man Across The Spider-Verse")
Like A Prayer (From "Deadpool & Wolverine Trailer")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a79bde43ecd3c34e5f5eb820e63567f1f2d7128355a978c49e4be6fa6dc9cd6. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZTRX2453948.
Left Hand Free (From "Captain America Civil War")
Superman Fanfare (From "Superman Trailer") [Epic Version]
Neighbor Like Me (From "Your Friendly Neighborhood Spider-Man")
Falling (From "Spider-Man Into The Spiderverse")
Nothing's Gonna Stop Us Now (From "Thunderbolts Trailer") [Epic Version]
Nothing's Gonna Stop Us Now (From "Thunderbolts Trailer") - Epic Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbefd71a06a44825023301042b1eccb325f3943e6482e161b5145f7ba71e7efb7. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T01:09:53Z), 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/GBRKQ2525782.
Oh Lord (From "Peacemaker Season Two Trailer")
Road To Nowhere (From "Peacemaker Season 2 Trailer")
Since U Been Gone [From "Supergirl (2015")]
From Me To U (From "Marvel Zombies Trailer")