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 0x2ee2f58a96fdab1f45f65c4551401c9898fd1baf1cf13bdc8f17db32020e152c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/95d8a542-e4e4-4279-9f22-1d46baad64bd.json and https://artists.proofprofile.net/proofs/artist/95d8a542-e4e4-4279-9f22-1d46baad64bd.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 0xff2d5263a3d83555628f92180119b10df5ffec5f5bf2eb33205352d3bbb7d05c. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZTB32389005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf61881a7ce425cc423621df99a4d86514a207b2a2ed877728db6bdd8c12e4c1. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZTBC2394304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81336e5a096abb6ec3ffe9edd5c8dd2b450a9efbbaaa2f535e09b51a7fb2f19c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZES52448032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc04de5dc701eeaa24bc8325fa1ecdd19637056ecf3bfa1594050fa343a824ce8. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QZES52448037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ab68dd94f018944ac15d57e3f76b45563b9d250f7b3597b052562148748ed7. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZDA52487947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cbf5d42588ac919f7579de7c08f81a448b11c1ed879ac5a89d6cf0e96192c34. 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/QZK6M2461147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f368636c770b82fdcc828624cd19b1c8585bbcf2845294bd9b1ebf4ae2db50. 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/QZK6K2463857.
El Ricky "El de las Calaveras en la Cara"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce8b768aa84da9db228ab9fa3ea2967b27b57d1fa9ec241a7f8bdd165476a31. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:47:19Z), 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/QZTAU2499548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e9d45adb5a53193b710c650916538db84d420b50dd3b4205ea40a50af2ca6c6. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZTAW2483916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff9d7c5a6b27a98ed4da16f3c7909daa8adf76540f72fa14a33d4069b4ebf4e. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZTAZ2470372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf34799a2e8feee3ffca6144661ca994e4342f671d2c417954ed30f18d2397913. 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/QZTB82460136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d1a0b4f4f5591f2222f21ff69ef98a25e6943d792e88f80c7daceede179d6a5. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QZTB92451915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x544b700510c7b6d0592229ae6a1d1ef71f52e6b2a1a54944a5c6eb3fe331b2e9. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:36:26Z), 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/QZTB92451916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f8cac4fa5ffa8339185d7419a1aa74040da7f4c58bb569c1ca5bcf03a9117d7. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZTB92451919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea39e242bfa6d0739aa265b1cde7b5e79fa7e342f51ff55e023aa27a1efe3052. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/QZTB92451922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x330dfebd09aa3b6f0c14b5ca0c3128097b4aebf0e1073eba1814d7514b7aa9bc. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZTBA2416152.
El Cuaz 2 Mil Del Infierno (La Trueniza)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf27dd249a43a2288cdaacf2671b32e5e2f1fd401ccaf4cd84c47d8d89aeb3353. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:09:30Z), 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/QZWFF2499355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9756a9d7838aa05faadd88daba6cd843d56718de5d651abd161b63e6f30a9e3. 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/QZWFR2430017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3c322df664317aa4a8e8be486961af822af13aba4fdda251728fdbccc7f80ed. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZZ7P2490668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e4c1dbb07c4ecb850c4f5db59c48c38523bf629bab042ffd7da0f228da9d39. Chain 2 (Bitcoin): anchored in block 957665 (2026-07-12T06:13:49Z), 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/QZZ7W2496953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96a1f2bcf56a5806140e10ee1bca880a4bf54386c7bae13fe2bfb0ba313a4b0d. 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/QZZ7W2496954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf12e9d987a65924bdbf6e24f826d8bd848293ea365b786e010c51c13bd56c7c6. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZZ7W2496955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda07dbdb4285fb8999ac88dd9511bb126c824254e3edc4a3d8dcf699a84f122. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZZ7W2496957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc66a1de51b212842ec0a32679c83e1d0a778e4d8a2bb957dc85fbcf479c2fcc. 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/QZZ7W2496958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa675f8a6daa16d08344602ce77e2ee0db30d89cfc0a94413a99cc0ce57c46c4f. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T09:53:55Z), 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/QZZ7W2496959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93362f0cf04818af86db4b8c788d1f29215487e96d91f0e0b669c25b31bfa7cf. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/QT3F42432378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6953f867df0073df089caae63cb0af0e4aa7c27f511d273cf7e8e7708b59fadf. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QZFZ42597254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c0a06d02057c6465f6435935f6cbf7f00b7c317f35eed264903b704e07b66bc. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QZFZ72592854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdddef92cc3af86e212cb5d5623d3d368553c9802ce691ef7d5cc929635965a6. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/QZDA72588706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2104ff65f330787cf77a04e4ea1ccc672d29aa106a8de3b45fd4e25da12a433. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:10:35Z), 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/QZK6Q2537372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d75f0be659913a075023d561a4421598eba3c22a1d0f10584277dd651351033. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZTB22599230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81a8e9bdbb011bb5b4efe1b43cb4741f8983fbd204a590b218271a5416b981f9. 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/QZTBD2565673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b8f5fe34cef98951a54e90d9c4c2a39fa18b433c1510dadd35502adf65dfef4. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QZTBE2567866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefde1170282419b39a0af3a3472a4c2930264f38cc6f5020d441e4579f72bc83. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QZWFM2563618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ef54fc155ec199c4067803fe31b981b8dfb23bba172502dba89f1b3a760bab0. Chain 2 (Bitcoin): anchored in block 957810 (2026-07-13T05:55:46Z), 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/QZZ7N2500888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c4c33a0e7992e07390a0d1a38d0f31124669c2f05f84295a18ccb9099cc37b4. 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/QT3F32582033.