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 0x78f9ead37dad985dbdaf55b4031e75a9ec7daf7c1099d362ac348279807e5d09. 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/3fc615b1-8eb4-43de-bd7f-31838e50859e.json and https://artists.proofprofile.net/proofs/artist/3fc615b1-8eb4-43de-bd7f-31838e50859e.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 0x7a1939f0d8e3c5668c5d5e30065319b8748604e0d10a1c41b1065615ecd4f117. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6I32481320 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe426b7177946b3335e654c14ddc439f20ee70b4005ef9855965840ebce59a840. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6I32425158 — a six-check JSON result.
EYES IN HIS MOUTH (The Amazing Digital Circus)
DEMON DRAGON EMO STYLE: VANI'S SONG (Murder Mystery 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfdb3c8b874f623ad6622fbdf85c4ec40fbddf273be6695705c6fa6e3ba50ea0. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6SA2438133 — a six-check JSON result.
ZERO TO A MIL: AUICIQ'S SONG (Murder Mystery 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b71fc07955f7e3673aee90458d40c82cb0b42db35a53a04be8fe0d2236b4cc6. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6SA2463081 — a six-check JSON result.
CALL ME GOD: CHASE'S SONG (Murder Mystery 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d32961731810ec4a8f63730c45e38bb96824b3202b3120cdaef429f257792b2. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6SA2494141 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22f3fed115ffed4345a54e0c02a83d12b2a1786d3b58f3f58dcf0e435e3d6afb. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE5BU2560372 — a six-check JSON result.
GOT YOUR NAME ON MY BULLET (Murder Mystery 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x827ecd5f61be749a912719143befbc92ec8ac28065d392f0895a8458e6586554. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6XY2513483 — a six-check JSON result.
DRAGON TALON ACADEMY: UZOTH'S SONG (Blox Fruits)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed17b8a0aecfb4867019c403ba22afdf316c0f1e23dc5ea8ce4f8bc47032d395. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6XX2550098 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8a1df19d2eddf03f59d7605bedba9a229577f1e6fdb6ced5afbb188a1ba09e0. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6XX2555032 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32385969c183606773bfa2131e7ec6eed1ee597bfc4d8713434e7aa2b093d9f9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6XX2589692 — a six-check JSON result.
ENDLESS NIGHT (99 NIGHTS IN THE FOREST SONG)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x823c8f9846f5d2b139368f9e28c63f9d450e8766275bff923fcbbf40f02a01b9. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6I32502614 — a six-check JSON result.
CAMPING TRIP (99 NIGHTS IN THE FOREST SONG)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x086c0cf6391b3bcab31ee24421b2b14b91dd4d63e1e6d898a082aeb24cdc3a3e. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6I32531760 — a six-check JSON result.
THE CULTISTS (99 NIGHTS IN THE FOREST SONG)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16ed18ddb706ac13d683fae5d2101f13a91a6218b380dfebdbbb91ab2a399590. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6I32542902 — a six-check JSON result.
BABY DEER (99 NIGHTS IN THE FOREST SONG)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76cc6604e3116ec6efadbd4eca8f0448274e8ebefb47b16bcb368281070229a. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6I32593975 — a six-check JSON result.
TAME THE BEAST (99 NIGHTS IN THE FOREST SONG)
THE ORIGIN (99 NIGHTS IN THE FOREST SONG)
FATHER DEER (99 NIGHTS IN THE FOREST SONG)