thumb|upright=1.5|Various kinds of mirages in one location taken over the course of six minutes, not shown in chronological order. A mirage is a naturally occurring optical phenomenon in which light r
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 0x98a69a9bbfbf1bd84afc7376881d567dcb12bfb561d12fabc14d2c05fb672835. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/59a7bb08-173d-477e-8aa7-945ea7e48956.json and https://artists.proofprofile.net/proofs/artist/59a7bb08-173d-477e-8aa7-945ea7e48956.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 0xa969771389bd5afeddd5021b077047e89dee63123738d388c7a7c74b9693ecb4. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USCGH2106545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb04ca1d285e606360cd025ff779fd7f0871df58c46741373a10bc97650a56860. 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/USCGH2106547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea03c4c6e1280a35d68b80f49203af8cee7c9b7d2da2c87093c79838b164c54. 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/USCGH2106548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc234ab3545dbd5565d676228e389720548754df79ea2e7d69ad98bad4ef67552. 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/USCGH2106549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5828b1ca0af0273222e8e8319de5affbadf71bb0fb6bf7dacbc8e19f5c3527c1. 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/USCGH2106550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e54e4978da0ccd379ecc08cc80c3224cabd5d3178604ad9a6b4b977052dd2d. 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/USCGH2106551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3779f6103a69333d6aea1c87b94fc291736797c914e357f4551a99b356b6e86. 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/USCGH2106552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e2352060fa5c393e7a7f8a4d795903b281919361d2f74a3ef0d284a62642327. 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/USCGH2106554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7fa9ebbf6bb5906c3df4a94e309734c8daf009627e6c8943ec4d92b21ec53e5. 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/USCGH2106555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x331e1a3500345ae2f98a86d8e2ffabd8f354d6b1cb861d31983b4fadfcc5d6b0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USCGH2106557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb1f7ede998dea40782797137fa1f9da1061177aaf9cc8a0d038901e124a7807. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USCGH2106558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe19d20f744dd344242d627da47bb3cf1840a0b6dc1b41974931a3390652eaf. 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/USCGH2106561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547d82ddb7ecbbc71df373a4750b41862c5a63859d5d590a320b20d659fb1492. 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/USX9P2082947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc266dc8703f90551a8a376d747ece956aada0fd6e7cb7de8b510fa37e06bf6. 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/USX9P2082951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd291ddc20fb8f2ffcf634a66f018b36b3f1f15e8f5e6217968230d1a6214b0bf. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USX9P2082952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eabd2dcb79fb4c99f3e4148960e5c0c6cde90b681269a82279ca1994ddd05f2. 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/USX9P2082953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf9e2b9ad1ce4882be219d6e13dcd352835e8fd879a15e2c776c9ce64beac3a9. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), 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/USX9P2082955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64316fcef39b6b0ad4240b951b4312dcd6bf259a82e115ed3d1e57df24cebd60. 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/FR6V80107450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf31b5786ee9cc9565fd97685d771ae4232cc8e2ecc83b9fbbf01701fb59a8909. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR6V80107451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e528e28b6ead3b137f43526993b8a0cacf01635f5d33131b81e40f4aaf7dfa1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR6V80107453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e882d10df66f53016cde215a4ff2b59c8d3a02992f287813348b658205486db. 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/FR6V80107454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d1de96f26498f6060f5ca6571580dd17b8c8e7c09670279ac2e29b7d2e2bcaf. 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/FR6V80107458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cd535f5ab5753911c4e069ddcd143cc9286c55f2f7c1a6232065f76a40e458a. 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/FR96X1711198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x161d8a043f703f8f60e661319ffa8622eca75af9b29829a0bb3da6eab7670aa8. 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/FR96X1711200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d7104961e347d2d6fa8e2ab3e460bc1748a3df059173bf1c0c620525698eb6. 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/FR6V81317090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef004c34022aded8363fd59c54e5bb4b0cc2424637873a6af0f75c93caa202e9. 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/GBGYQ1300110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e528e28b6ead3b137f43526993b8a0cacf01635f5d33131b81e40f4aaf7dfa1. 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/FR6V80107453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e882d10df66f53016cde215a4ff2b59c8d3a02992f287813348b658205486db. 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/FR6V80107454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd88a9d35cf538e69076c194066170c08a6c03e120c996f0df2f00b45dfd99fb. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBGYQ9100098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e528e28b6ead3b137f43526993b8a0cacf01635f5d33131b81e40f4aaf7dfa1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR6V80107453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x717ccaca06b2f6e335c4a10f377fb4612e8ea829c63518109abe43bd2309cbe2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBGYQ2000131.