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 0xa715cfe8952c4f5bb4fce0e569e00d343536453d29e8f013037e4f49577c8eb8. 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/28753e49-1a59-4e3f-b60b-e0be562901fc.json and https://artists.proofprofile.net/proofs/artist/28753e49-1a59-4e3f-b60b-e0be562901fc.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 0xd2fbda50276d9e8827c70fee1641d695f4aa8fc2cfd35e97bd2bf5eb98b16207. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/FRX282025646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8afe158b0903c1d60972de61d162d9ec306b832a9bfd1c7dfb899f4a2e3aee51. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/IDA712000298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x768ab96e2b596500a8119b54699b16886e305752abbf80dd35ece132ed060393. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/FR26V2070744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x265b9cad1950e5351d8a70d5584a089a79399438d6d6ed2eee1ba4567b05b530. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/IDA712200626.
DSAS (Dunia Sementara Akhirat Selamanya)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa00a4ef6e20d63c87eb43662066df3ec9afd03fe92706ac28642c3865c38e67c. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T03:51:47Z), 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/IDA712200638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77843b0fe4ca14b4b36298ba42eae6018043b0e7364cadfba327ba8e2b18c4e8. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/IDB992400216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce0b4cb32240d2d28abea9edbd6c1b73c807cf7b90240cb72fb758ad205421d1. 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/IDB992400263.