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 0x108bf7a98b92c3b1d097b3d1f8e543f872c2ac815165e130ec80abbb02889d49. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/43136162-fbbf-4add-b8db-b63221a70bbf.json and https://artists.proofprofile.net/proofs/artist/43136162-fbbf-4add-b8db-b63221a70bbf.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 → 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 0xf746d881a7ece2a1dab18212dd380d3c832adbfee6c3ce5ac65fa9a1d4b5ece7. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZNMX2175167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6a0f0432c1dc13f94a069f5a212ae3ef7a53010bc039a0ed94bd7c9f03f4f5e. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZNMX2175166.
At Your Best (You Are Love) [DMW Edition]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb913aca5aa754f80bef933ff7bde577e3dd41f727f408d00c8a80db2053b5668. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZNMT2494231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c6ed341ac60eb8b01f82b5a7687ae5d63b6c2c3535e0c7a5ef33c5888385eb8. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZNMT2486219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb913aca5aa754f80bef933ff7bde577e3dd41f727f408d00c8a80db2053b5668. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNMT2494231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00a04e650b8b023278ce348359310f8edd2e497a7f846f8cc91fc51247898ed4. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNMU2412828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f2c0916404b1cf64fadce614cb5a17ceacafa120ce5538a6ba5e3c9bf4468d. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T00:40:21Z), 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/QZNMU2412829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f63c9457259fe310640a10591e756c598f01f5ce697fc48fe2aea3e89656247. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZNMV2405873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dafdc6352a2d32954c52af1ccc6c164d82a4cf38000c2d2a4b6cc2a4b5fdbe7. 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/QZNMV2405874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe80af50e0f4c1277996bee4cc2a2651521c476b0fd0f79a39786326172da90eb. 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/QZTAS2238903.