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 0xa91e98b988f902d8573120dde2a95826d0d438890004154d5d11117dfb1e5933. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b85efb8c-0fc6-4254-a421-30e0cfe2326e.json and https://artists.proofprofile.net/proofs/artist/b85efb8c-0fc6-4254-a421-30e0cfe2326e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Relaxing Rain Noise for Sleeping, Studying, Reading
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 0x314ba12c0943985c2a93de378354ece8c39046efd77bbd190599c14935da608f. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FRIDO2111662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30113d50eb6bf629e6e359770ffc480c8c573d826323a396ee79486f103412db. 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/FRIDO2111660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x314ba12c0943985c2a93de378354ece8c39046efd77bbd190599c14935da608f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FRIDO2111662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6618d30c4ea086e970868ff407e1a8ee30cc4878e38a9da9a283a96b4e45ac7e. 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/FRIDO2111664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeefce801520ea0dbb17256363c6fd30b54784b5ff695ddbfe20dd24bc431cd10. 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/FRIDO2111667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6f65d6308825bdbbfae0725ba37f5f92ccb0e5262b5a11874c43a3d99610f20. 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/FRIDO2111668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb06394ab522c4166c524554566b94f625d2a6e3b4bbdd594dd6c21354fa6162c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEN962030901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5050f39f78007abe5dcfe564a809c8458678756e542aa055a3457a029e7572a. 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/DEN962030902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f6e5bbf1a8246f0f61ddc8c7ad9e9337473f7b0531437ff3184d9364c6bb5aa. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEN962030903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a5a4dc7f846df089eb623306d95c6b4300164bb65fecef5dadbe0618e963ca. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEN962030904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa85e207ba365c63ddcdf6f36038e9f5fd6a929da98e57a01a4c3857fc778f0c9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEN962030905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cd36c4ce0215109b8c3b031d287c3663ddae33aaa44818739d41fa1d18894de. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEN962030906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2baa291393ae0a1400a78cfca2d1e144b0647387daec88d482401e0996d92f82. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEN962030907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc571c3ee355a645fae7abae27ffbf0f4c65ca1cc00cc8e8c2e61f19810cfece9. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEN962030910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2baa291393ae0a1400a78cfca2d1e144b0647387daec88d482401e0996d92f82. 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/DEN962030907.