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 0x32ca98c93c8c98d08ff3a0c0b5e04e81f0908343fb8dd1d3d576df8fe2279c7a. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fb1f9870-ee5b-4a47-866f-092bf67a3fe0.json and https://artists.proofprofile.net/proofs/artist/fb1f9870-ee5b-4a47-866f-092bf67a3fe0.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 0x8c1b252d4607b462f94352334a98599e23b01719697db475935d380501aa5b45. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZNJX2206101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e1d223f56a526351a222244b1fc519d1e73925c88bbe04c519ff4f7861a5b9b. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:57:44Z), 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/QZW9M2290139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eda1eb4a4b66e0e1c8d886df898103438443b2836d5f013e157eec29bd59154. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:58:03Z), 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/QZW9N2223299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe583358ec28a5c4ba3749e30c806a53fe3b5435d43b6b6e13892ce7065c4a7c2. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/QZNJY2380817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7906a4b30c5e0bd1cfcb8c5d699d247feb6463187c4d6e64c19b6cd47afbfcc1. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QZTPX2395931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc6d383db2637b5aeb9e7d0f8a8f94c3b711092201e1b44f682c6b3fa5532d83. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZW9L2322407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0443b3523e00d6d581d81205dc83fab44f75e19cbe64cce1151ac0ab21e1fd18. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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/QZTB32543400.
Sleep Protection Mantra Loop (Chattra Chakkra Vartee)