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 0xeb7f6c6322ea3fde02c6c4fc7c3acae83104d97180fb29abd8c5cb267066fda2. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2925dba8-3653-4d3d-9f02-bfc62bcdb5df.json and https://artists.proofprofile.net/proofs/artist/2925dba8-3653-4d3d-9f02-bfc62bcdb5df.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 0x02ac2633695fa07c632fd97d7b07134eb5cc752a1ca9fa1b1ff2da61e98fd9dc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FR59R1644718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6577da462a00a40b0db18a662b45eb4dd7d50dc8ebb7360da101fb91797f2473. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FR59R1644719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83aa05f3726058caddecd6b03880408d2ece4eb5c8ed8c5bce32eaaacd0c31f7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FR59R1644720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc058536d9a415138c4506b2d100dd1df1da37c77c45149d5a5959cb73b11e8. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FR59R1644721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34534a606ead9932b1716002033ef7dda132607480e2c5f1c1c48d9faeab6ae4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FR59R1644722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x759fcc3981c861b6ab59bd65195ba9fd7dff15d2f57c0fbc5024353b597df204. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR59R1644723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b1465ac9f274b98ff57fc6345bfdfcfede1077026e921fe48b0e3c3edb0dee9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FR59R1644724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f1893b30320c3f29ecfbd2c0c62071a787ba4779029f007ce62799569f2d4b8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FR59R1644725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc57b4dd06177ed0e52b3864f24473d7290bcc672848da8475aabb8c1a2e7118c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR59R1644726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39703a6bcab1ab3b29027abf3d3a9c4249b4ef0f4386899aec655492dda515bb. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FR59R1644727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46c4cfa6a197bc80a9bb9d0b73eeda6c7f7b3ae680ae5f541c8cb37474a26e14. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR59R1644728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5725b94edb946e914b9b6c3a044fb540a42cb17311eb19fe08c2848c7750d040. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FR59R1644729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7138f1163945061edfd9adb093e7f7c8521c56fb81d8c4b888b32826a343b69. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEZ651110833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ef0e7acb590e30a4353e40998f5a9fc857456c5d1edea90504353372829d18c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEZ651110835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56bbac2910e3b393a9c753da79b6e9dfc54781ba349b3404f3ac69824899b5b2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR10S1678922.
Swerve! (feat. Royal T, Shawty Mac, Captain & Rob D)