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 0xcf938aba64ed809f98c463e03c0cda005336df21a3f6f37f175665d452bd2526. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cbe780ec-e689-4cf4-b945-f9df308e79a5.json and https://artists.proofprofile.net/proofs/artist/cbe780ec-e689-4cf4-b945-f9df308e79a5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Slendytubbies Song (La canción de los Slendytubbies)
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 0x7f699373c99458cfe51c724570e009b31024a38aae960ff9645d0b652fb0046f. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QZHN72472913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbad5113a8b16d5b5818370bc6bca79b63ecad507274a04661caa1f24027389c9. 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/QZMEQ2495659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacdffc1cc8fa0f08ed6d308e619f19b3f2b21b59dbf6ceb46e9b298abed5834e. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZHN92096890.
Slendytubbies 2D Song (Rap del Modo Historia)
Crash Team Racing Nitro Fueled Rap (Pisa a Fondo)
En la escuela de Baldi (Baldi's Basics Song)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae67ed1ea1515781b8c7021158b7d1c354de572d4bd8aebfb25fcb7072db7f4. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/QZNWS2056469.
Villa de Locos (Resident Evill Village Rap)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b9f434cf63eaa60e44f485bff441667ebbaa9ac68bf69b731ed33c1115b50e6. 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/QZMEQ2496739.
Más que un "NPC" (La Canción de los Roleplayers)
Bienvenido al Circo (The Amazing Digital Circus Song)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x271b1d651ba108c44f50022bc82b5a1ae8122bb97cc020dd803f0b0b734c0a45. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZTBF2378158.
Alucinaciones (Poppy Playtime Chapter 3 Song)
No Soy Tu Bufón (The Amazing Digital Circus Song)
Yo Quiero Ser Un Héroe (Marvel Rivals Song)
Bienvenido al Infierno (Poppy Playtime Chapter 4 Song)