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 0xffe79991c6b89b1c462c2d4be93d5c2fa6766e5f912f3f4ac9763dd60cb0ed55. Chain 2 (Bitcoin): anchored in block 953600 (2026-06-14T06:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0edc0107-f355-40ea-a6d3-3c4339896268.json and https://artists.proofprofile.net/proofs/artist/0edc0107-f355-40ea-a6d3-3c4339896268.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Can't Get You out of My Head (Nightcore)
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 0x0ba05946b41da61e1e5addc765b6d9684f836e40727e1afe1f4ae1c166b1a6fe. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/GXBDS2454159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x063e0c66fd1f45b99bd525c52724b62972dedb67a1364d78c55199fe8addb699. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/GXBDT2403983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a43c0538a1dd2b0d605e575309c3e6b8255c9b814d871a6cc8782b889d09e2a. 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/GXF972419435.
Love You Like A Love Song (Sped Up Nightcore)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd036d1a60611171ce5f5485fbfcafeef98a90d58fefb255d592ed480acad674. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8KD2594707.
How Deep Is Your Love (Sped Up Nightcore)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4faa74e5523ff65e2bc67e362a69a0ed483bab870d02e26eb0d6cb99b11288e. 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/GX8LE2584806.
Your Love Is My Drug (Sped Up Nightcore)