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 0x15e75d4052a0cef6396d919cf602d044eafd107d0df452739af8469f5bad9483. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a95f59d3-8df4-45b4-9b30-ef49fd869f50.json and https://artists.proofprofile.net/proofs/artist/a95f59d3-8df4-45b4-9b30-ef49fd869f50.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 0x020e27963cc56be903bf9b85da65ff6ef2ef78e7c07b57d979243fec24b5036a. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/QZTAT2384154.
ဝိုတ်က္ဍုဟ်ထောံအဲ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa714d901ad445626d78ab872340aebac92194e12709f6da7a02c09580b47d5df. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZTAT2384156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9159b982b57c638f7ed537ef79f3ac7440cce2109d01d6bf02d7747e437fcab0. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZTAT2384159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c4f4e089160c93ede9598884dcf296284930155600e0dfbe0409b97fe466ae6. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:35:42Z), 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/QZTB32233185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa36fab40e221b2c83a49bfdd175d55ce09931880e35e8e153acbaac5e24665bc. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZTB32233188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13e5a8b7155da4ab2fa284df586f421237c6c87cb6d1811414aaf28f3cde6123. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:11:32Z), 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/QZTB42278387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9565d4dedae0ad8ab053ae2f6ad43a622806db5a0e14e2ad58249be6e7a483b. 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/QZTB42278389.
ကောန်ဝုတ်သွပ်လ္ပံ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81b690f10e2837f78234f79677fc458e11f276bbbf44479121163dbd88f2bed8. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:25:23Z), 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/QZTB42278390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf00ecc5674451774c2f7ad3f1e86d3548eedc5474b7c000a6be44b95b81b0479. 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/QZTB42278392.
ဒၞာဲဝိညာဏ်ဗှ်ေနွံ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7abd3f1401dd3befd0b55f7b593b2937968fb67b46f9fb4a8f392c835db0be0e. 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/QZTB42278394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x959e2c19d13b09c72dcb3b3996cd380a029554733f45106afe5f01ed3dcdfd60. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZTAT2230010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35f61369b07112d26e31cb0b97ae13d9c2b48ef2f2af4575a90928cf24884c9f. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/QZTAT2230011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd08010d5c9ca8b911928d4ec3304382ea313dffaca7984c58fbce7e8b02c42. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZTAT2230013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb108be8fe16f70ae66eed077032c5bb7813713f2f7d7925edae98b537fcc52f2. 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/QZTAT2230015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e2ceab8be2d3a404318314102c007a595938d8148c92a0a15d976404c735e22. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZTAT2230016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4daecde47b96f150916655bbb8f5cba5bb14d250a7a25f63b00daa256377e82. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZTAT2230018.