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 0x23acf3d7786080782621b0c2bbab82c6ff2c407893869ef90c26fd186263aad9. Chain 2 (Bitcoin): anchored in block 953641 (2026-06-14T13:54:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/39e97c57-bdb6-4025-8b37-e7958326417d.json and https://artists.proofprofile.net/proofs/artist/39e97c57-bdb6-4025-8b37-e7958326417d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
קוסם של יום הולדת (2003 Remastered Version)
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 0x39555edac70cf68edbced77b2b79f78f8c367ad3af83a18ce9595fdcde6327da. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:02:49Z), 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/SE6XW2207791.
בואו נעלה לירושלים (2017 Remastered Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb1ab3eeff4f1cd73a4e63a0146e2a25e5b0684a8bc28b741ab0da303499b3fc. 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/SE5BU2207968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56aa9212ead5a1a7fb9e6cdd6ea46c02f71503dc67b15712ba800ced70280884. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/SE6SA2299733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd99132880e6686cee23c62810204dbd2a87995bd7dfdae24d3b85b42c87a07. 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/SE5BU2207033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e007e72688bc58da55a8993af6aa1130da90b2d28ab7c6ae3daab008ebf0eb. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/SE6XW2412917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8966bd6d392d72605685618f01e56ae70653e048ae75410e1986d04095b57b7d. 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/SE5BU2549583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2878a60460d3d58a5ecfd62cea5116ebd992bee096ae7bfb98008facc2edff16. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/SE6XY2526662.