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 0x5791de1088e7bcc8796e5dc462602e17ce8cf1b01f34dbb3f04e11ca12143e9f. 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/6d2f0099-5b21-4dbe-b4cb-816a01ba1934.json and https://artists.proofprofile.net/proofs/artist/6d2f0099-5b21-4dbe-b4cb-816a01ba1934.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 0x0df78c768d7846d7a5f5b653c4041fb7ccd21ee8092e2d0c94a11b61fc2c83d8. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QM42K1732614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf26ef398c10db40c596a5c1aee30465746b8d9dd6ef6e15fd036b6e918dacb6. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QM42K1744456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1411a7b23f8032dafc0ad4c79b08591cd2c2c6a1e66d4aab32d0d8f6eba92f5b. 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/QM2ZU1803117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5430af1912d7eea4407a6dfc8cecbfaa7eae7d4e00cb7c6b32ed7511317bdc62. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QM2ZU1803116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1411a7b23f8032dafc0ad4c79b08591cd2c2c6a1e66d4aab32d0d8f6eba92f5b. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QM2ZU1803117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bc434e799b216fd2e7a7670162067bda5594bfbfec66831d61e62342af3c4d2. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QM42K1997549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c9c10bbbe69b99192ed58c54e258101357d67705df64740c0772b8189ae2f6c. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/GBSMU6760880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7bfa873482b4e19605056059a5ba99653b358fde2fb7f0a43dc8ef9eb2c6a17. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/GBSMU6760961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd06ab74b456ce97b75a5a92f9629aaece941a5817c2ed245501b03fe60be39f. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:09:37Z), 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/QZHNC1961586.
The Lone Patrol (Inspired by 'The Outlaw Ocean' a book by Ian Urbina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c7a8fd2336ce887043c52236812fa9ebf83bda311e9f2b9b3ace51bde186b8d. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/US3DF2079857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7f6e33e5dad64897d45dce6d2335c8d536d9c82a6339efc641392a64dcdbaa5. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/FR9Z62000470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd77b35fc4b2bc89ca823c3ed76f745daf8d28a57d00bbdd589dc44ff07e14780. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:35:57Z), 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/ZZOPM2003923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b966ca45c709706a0f056515edc676612a1b1cf31bbd2f8dca76792259f9ab3. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/US3DF2126299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde3930e88345a27ec6d7011f7fac1f9a1d7950680de5bc7496a1f36696ff14b3. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QMFME2149062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a01dde16e3b4386ec07f957055ad0c9d6479a26649aea59f51ebe8eec16b242. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USAT22105326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b3fd85d433f9d91d7c862fa68a8f383b3cb1c9004884c196a2a14f7ada6168. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USANG2201379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbafd69e32a4841c1f0faf4de3c344dca58f5bb21c2aea8b4897e1d22a9ccb2ce. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:46:32Z), 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/QMDA72207558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa730c6972ad0db913aa558b017aa6ce410aaf7ee056898fe024bec72a61bbd7b. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QMDA72224435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbba5977165d8fc4bd76c820ccc6e389a77c341161921607022b5848a58fcb12b. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QMDA72224441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c4ed6f3b93cd5f68bd3cc61cc3a1bc9dfb330d847bc4cfbe4a9e82b484b013e. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:00:56Z), 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/GX8LE2277690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6a9533d85cd5d41c444444069ea9d97c395d8bbd091eda9619d099d563910c1. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USANG2245952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde7a21f5d40d473ce888593dcf72368894f67b6903ed3554c3242e66708de5f9. 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/USANG2245518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd4218efae010ff640197db7040541951e49b0138feee554ded506ba7420e4dc. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:32:39Z), 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/GX8LE2206748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6241dcb08cc65d3ac25b1fd2b901ca46a00a9cdac2352f2dd879664bc6a926b6. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DGA092316911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b56137f647b09409a4b771fac0ff82d1f6005965480564934d0f349df74309. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FR9Z62300465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9da78cd930b5705a2fd67174cbfd9966c44a94349e93d4e8af7ecd7cb321fcc8. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:45:55Z), 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/DGA092356987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf58425839b9554c13a5bda718aafd7d22076375de2dec93ea21f07b6c6ea472. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/DEH742411074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6580f311b74bf7cfaf5e13e664eea017361915614d84fdaba709815741fad3bd. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/US3DF2460403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x513a1eb8f2f9044d20f679f737a1c163250784122ef906c115958168d07705f5. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T04:09:22Z), 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/US3DF2460408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x276b31c535ef816e50070bfd7ff61e4b9bfb903878fbcc2e8d9f69d9cf24f319. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:49:39Z), 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/US3DF2461765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff4004db857927604dd896c6df55a2794c34c2eeae5dc3b4d1c35c21c0016c7. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USANG2461875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff4004db857927604dd896c6df55a2794c34c2eeae5dc3b4d1c35c21c0016c7. 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/USANG2461875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e1418e908cd58fae8e74f72c9ffa514999264c68b925bb5e828d17867efbd5. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/USANG2461883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91cf522720af7ac999014da2adaf568346250635608077ca820176fad53742d2. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/DEH742500740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40551616542d625a1803f2c7c709db18dbb8671358de2b357e16167af2cee0dc. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/DEH742505675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05be2b685246c3f0f149e94bb5f3674fcea788261f11edede4efb10946d4da6b. 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/US3DF2573049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc71d030b1cb27c8f067159058f1a9e84a59d0ba3b6cda6e4886b454fe54fab6f. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/US3DF2591243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x943778a4bacdba91e91f95867c713dbbb4c15a00e2915739b6256ba8ab72fa62. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/FR9Z62500519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x028953247b62834d0225db151e861ca625cb739fc18fbb93212b03bade09b2db. 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/USANG2513870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe083024613650bab0456e7bf34b8fdab9a5beb8c7c95fe223e302ff2f94fc234. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FRX872531092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e6104051b0c93c2892e70628c9734811aa99f362f769d05a4d60ae2a05099f. 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/USANG2526603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf50ff845f74436ddbb925ae0cc55f87a212fe233575f18e371470b19d3760ec. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZAKB2530435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x642b264004c7ad4dd00d0393bc45d4f3bde4db796f873a648c7400f3a3415a80. 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/US3DF2481376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7535440b4d2c593a49210674174163b22fdbd64d85ed7b9448cbff2a8500b143. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/ZZOPM2240625.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e63a17fe336d4c518a4509d74310ca57c4366964d3a6f74ccf76fb2017e0c43. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/ZZOPM2240626.