1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x336a30a070cd5f56ebe069cae2e4f61228646e890377ff666b6ce22d157449cf. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6b534c54-489e-469d-ad04-4196f83e50b8.json and https://artists.proofprofile.net/proofs/artist/6b534c54-489e-469d-ad04-4196f83e50b8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 → block OTSBitcoinBlock must exist at that height 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 0xd93ae88d2ecb1f18e808965d3ddba365eb3ffea19c8adc012795a0ea84abe35a. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:32:11Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZKDP2400001.
Livin', Lovin', Losin' - Songs Of The Louvin Brothers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f4487d33c736398baab74b2a18f61f6e95720199250cd94bddd5a1759f3814a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USUS70300081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd571234453157856cd54a8479718a83333bb1fa11828739d1501754460f56580. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USWHN2202465.
Simple Things (feat. Rebecca Lynn Howard)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2caaa14db77130ea67b4f8a96bc9c392eba050c56982eaeea416449fe4f6fcdd. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USWH10100084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2853fbe64e437d99f223fab862015bb2f53ea967effc632df34762e2441d824d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/US37G0580610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e90873c2468a56e7c078421fe4789cd48050674460550d1fe3413ee257dfc60. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USMCN0200076.