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 0x558980188ab1a060945a4af0426d0dafe04981aa819e93e7087d7e948c5bba69. 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/d98bb080-0660-4dd1-8f9d-bf93513e5566.json and https://artists.proofprofile.net/proofs/artist/d98bb080-0660-4dd1-8f9d-bf93513e5566.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Not So Itsy Bitsy (Mommy Long Legs Song)
Corrupted Machines (FNAF Security Breach Song)
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 0x3ea5fab0aade68ac551dd3bb58c15081f3d1088e9b7ae904a912fc56b1d8a1e2. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QZK6H2298280.
Mayhem In The Daycare (FNAF Security Breach Song)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ad4144b293de3e07ef6cfebc4d319207e89f39559013ac54765df817309bb1e. 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/QZNWY2364250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48087e9a75e07c5ac8413570325c193a5ec7d8f83eee239d2e3e7d34e2311749. 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/QZRP52340991.
Flush Your Life Away (Skibidi Toilet Song)
They Walk Again (Five Nights At Freddy's Movie Song)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79d04c92b956070559c08aff10728c429253e87693a0828a9f4fb53f5c99adb4. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZTB92384171.
It's Time for a Catnap (Poppy Playtime Song)
With Lethal Company (Lethal Company Song)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe31456227c2b0fdbdceaa170f4d51fa57bc3185502457cfb4b5b491a8809419d. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZHN52410242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db6cd591bf58f4b234c49d99e7dcc924c698b55e4fd9ae08ba7ad6b60bea4b8. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/QZK6F2421190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a0d93ddcb499a80d9b9302df7ec19e880c5fc801f74ec91ff2841c744a241ac. 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/QZPLR2408866.
Hey Doppelganger (Thats Not My Neighbor Song) [Stay Away]
While Finding Frankie (Finding Frankie Song)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a00a095a5dd9852d89249c80dcadc14642efee9c9f1a917c1a2f4f079c1c11. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QZWFU2436048.
My Dark Personality (Poppy Playtime Doey Song)