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 0xe12cf6a53be5074198a61bbb8b020fbe66e1e30344395ecc663cbecabdd757dd. Chain 2 (Bitcoin): anchored in block 953773 (2026-06-15T10:40:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c59262ac-86ac-48e3-a6ba-34ce75ef25ae.json and https://artists.proofprofile.net/proofs/artist/c59262ac-86ac-48e3-a6ba-34ce75ef25ae.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 0xd50568d26062e6946f6de00a1921b2856879094cdb70bf8a6f12bc3598c80357. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/QZMER2317277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda59b06630f11f6e628a61a819988b3c719b1579fdeec45be4f62cdbaefe7df. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:50:01Z), 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/QZK6N2423277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18e6df97e624f1176539f1025446b49f962cec33adf9639b1ab58abded02fc1b. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZMEQ2147651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee2185611115e0f89a197dadef6610cc3f7fc5883b80fa59a6f259ea8e82a97. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/QZK6N2423279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b840b105456cdd1d3bae8ea36eaffb89dda036f71985badb80d967f867085a. 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/QZTAT2272544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a4ff2d2ef7e8dfd2dfe50ee0ea6e18e4ef801d5f3b23aefed6dbe58f1f907ba. 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/QZK6N2423280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94eb3e78743cde9df49702290016b0c91d11cba3990e264c261c69ced4b40dc0. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZK6N2423281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bca241caacd18a7b6f3241f4bbb939f950543b27fca06afacbe25fba319e0b6. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:44:06Z), 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/QZK6N2423282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc1d3c15d1daaf9bc34ae0f91c479e666667085447be5a1a499d09bf421390d. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNC2261676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a8a292eb5a2a97d03f0c99fcb4d8c87fb4eebd8911daaee63198ad39f4b8c47. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZK6N2423283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6bedcd3618f424afc96755a59821e530c3f2dfd263f5e7a20fa27b729b97041. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/QZWFG2384717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409d8148727566f25147d6d3f91edb7c09fd2b75a2e15d7a3defc1f7fdd0a65f. 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/QZZ792443791.
Kip Nuam Ing (Deluxe - Karaoke/Instrumental)