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 0x3e691d77babeb1fdedc041e329736d31c79ef6acb097c0bbefd54919fffdea4e. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f24a566a-7a6e-4e4b-8f95-0e1c7419be32.json and https://artists.proofprofile.net/proofs/artist/f24a566a-7a6e-4e4b-8f95-0e1c7419be32.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
You Make It So Easy. (Alternative Version)
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 0x75f1c87c4277661f17c114267381e8f55da1c66f92225a23eba440c0ef61ace0. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZFZ32216887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28174019bf807dc9dc53ddfe89bad40af8b66650d0bd1452370b367199e5e5ea. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZDA72292940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd4b6a0cdd3f5dbb46c4cff05d09d0264dfa399fe3bff9fe50ea8524f6e391d. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZNWV2233612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd4b6a0cdd3f5dbb46c4cff05d09d0264dfa399fe3bff9fe50ea8524f6e391d. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:33:21Z), 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/QZNWV2233612.
Cyber Space 1-1: Database (From "Sonic Frontiers")
Cyber Space 1-2: Flowing (From "Sonic Frontiers")
Cyber Space 1-3: Digital Cave (From "Sonic Frontiers")
Kingdom Valley: Act 1 (From "SONIC X SHADOW GENERATIONS")
Space Colony Ark: Act 1 (From "SONIC X SHADOW GENERATIONS")
Cyber Space 1-4: Genshi (From "Sonic Frontiers")
Kingdom Valley: Act 2 (From "SONIC X SHADOW GENERATIONS")
Kronos Island: 1st Mvt. (From "Sonic Frontiers")
Chaos Island: Act 2 (From "SONIC X SHADOW GENERATIONS")
Cyber Space 1-5: Dropaholic (From "Sonic Frontiers")
Kronos Island: 2nd Mvt. (From "Sonic Frontiers")
Kronos Island: 3rd Mvt. (From "Sonic Frontiers")
Cyber Space 1-6: Go Back 2 Your Roots (From "Sonic Frontiers")
Kronos Island: 4th Mvt. (From "Sonic Frontiers")
Kronos Island: 7th Mvt. (From "Sonic Frontiers")
Kronos Island: 5th Mvt. (From "Sonic Frontiers")
Cyber Space 1-7: Time Flyer (From "Sonic Frontiers")
Kronos Island: 6th Mvt. (From "Sonic Frontiers")
Chaos Island: Act 1 (From "SONIC X SHADOW GENERATIONS")
CYBER SPACE: KRONOS ISLAND (From "Sonic Frontiers")
Space Colony Ark: Act 2 (From "SONIC X SHADOW GENERATIONS")
Rail Canyon: Act 1 (From "SONIC X SHADOW GENERATIONS")
Rail Canyon: Act 2 (From "SONIC X SHADOW GENERATIONS")
Sunset Heights: Act 1 (From "SONIC X SHADOW GENERATIONS")
JACK DA FUNK (From "Bomb Rush Cyberfunk")
Sunset Heights: Act 2 (From "SONIC X SHADOW GENERATIONS")
Radical Highway: Act 1 (From "SONIC X SHADOW GENERATIONS")
Title Theme (From "Super Monkey Ball: Banana Rumble")
Radical Highway: Act 2 (From "SONIC X SHADOW GENERATIONS")
Tokyo - Westopolis (From "SONIC X SHADOW GENERATIONS")
ECLIPSE OF DOOM (From "SONIC X SHADOW GENERATIONS")
Menu Theme (From "Super Monkey Ball: Banana Rumble")
Wave Ocean - The Inlet (From "Sonic '06")
Dusty Desert - The Ruins (From "Sonic '06")
White Acropolis - The Base (From "Sonic '06")
Green Hill: Act 1 (From "Sonic Generations")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd8d488c406964a9cbf53416d5612a70e0acc31d45922766ffeaad80d4b30d6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZPEW2596351.
Sky Sanctuary: Act 2 (From "Sonic Generations")
Escape From The City (From "Sonic Generations")
Green Hill: Act 2 (From "Sonic Generations")
Chemical Plant: Act 1 (From "Sonic Generations")
Chemical Plant: Act 2 (From "Sonic Generations")
Sky Sanctuary: Act 1 (From "Sonic Generations")
Dark Chao Garden (From "Sonic Adventure 2")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x997a9811c25839aa71aa4eaa5add1acfb65771f9b6424e0d2a147e0873884cfb. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/AUMEV2558169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x668a03bcc7f7e9c510eafd9831b91a665859a6cb06a7cabbfc8589e59f73a20f. 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/AUMEV2558171.
My Neighbor Totoro - Ending Theme Song (From "My Neighbor Totoro")
Sonic Speed Riders (From "Sonic Riders")
Start-Up Your EX Gear! (From "Sonic Riders")
Speed Highway: Act 1 (From "Sonic Generations")
Speed Highway: Act 2 (From "Sonic Generations")
City Escape: Act 1 (From "Sonic Generations")
Planet Wisp: Act 1 (From "Sonic Generations")
Planet Wisp: Act 2 (From "Sonic Generations")
Theme of Metal City (From "Sonic Riders")
The Path of the Wind (From "My Neighbor Totoro")
Theme of Babylonian (From "Sonic Riders")
Ms. Accord's Lesson (From "Puyo Puyo Fever")
Once Upon a Time, in Another Other World... (From "Puyo Puyo Fever")
Title Screen Theme (From "Blinx: The Time Sweeper")
Time Square Theme (From "Blinx: The Time Sweeper")
Let the Puyo Match Begin! (From "Puyo Puyo Fever")
Deja Vu Canals Theme (From "Blinx: The Time Sweeper")
City Escape: Act 2 (From "Sonic Generations")
Evening Wind (From "My Neighbor Totoro")
Menu Screen Theme (From "Tony Hawk's Pro Skater")
Menu Screen Theme (From "Tony Hawk's Pro Skater 2")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bfb241050ae2fdf2e1a030f96ad91edca867360459a729970c41f098940fdb5. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/AUGBT2543583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x431378eebec0b9fbb5edc07cdd0dccf6412f5d00c8d7e972b285d129236a5e02. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/AUGBT2543590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7fcdd977b1f3ea8a7111ef3110a149d920e7325761e44c7f3ae8ebaed8b4468. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T04:52:58Z), 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/AUGBT2543537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x095b5112669c406db078644ce7e5d6ec5a16c5b1713de5b868f437ec3b335970. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/AUGBT2543585.
Digital Circuit (From "Sonic Racing: CrossWorlds")
Water Palace (From "Sonic Racing: CrossWorlds")