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 0x849a88d0b9bb61341516f9ccc7cb03d644cd901fc909cc84b38d7aa9e0090b82. 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/ae02ee7f-f2ef-4952-86ad-17e4395b5761.json and https://artists.proofprofile.net/proofs/artist/ae02ee7f-f2ef-4952-86ad-17e4395b5761.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Piano Lullabies - Someone to Watch Over Me
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 0x2f2cd264fa2f1dd5c1371e53f93088bd61de615bdbd725a3f9cb73f8f685798e. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/USFV71100452.
Beauty and the Beast (Beauty and the Beast)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703335a7ab17ef7d600de8f297ebe34020013df1a0d38b091301fa6c1e8890d8. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/USFV71100458.
Can You Feel The Love Tonight? (The Lion King)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61f399f518765b57e95178a0bba86ec1a894010be278c8329ee8df3c39b4d784. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFV71100455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b0e55e5d710b846a838293b0254fa043f1a99fc5ef0bc6802dff307c83953d. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USFV71100460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3767834045cbdf783b3cee7bc8d28530e57002f838ddcec1f2a03d0dcdef8ab4. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/USFV71100456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20dffa7304aa4f9831d7fd844c20bb525deefad416ea9f8053e4def725de414f. 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/USFV71100453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0c9f82b4cab41e423d748dbc167c5483990c805625990ccb7be98585d8f9a70. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/USFV71100459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c70fa71b77337cb6e481f8f664f0a4eade6b97a3253c3f6944f047c6dae49a4. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:49:25Z), 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/USFV71100457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31cb90eadfc1c9ef5e19a9a6d6e3e871262bed72d2bea776ca9f1a91f3a6a330. 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/USFV71100461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b816c5b1c87956d499fc68c7b4aae721ca3ab3070f08657b6d073ec9e71801e. 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/USFV71201350.
Lullabies on Piano: Gentle Baby Sleep Melodies