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 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 0xc27750fdeeeb3696667f785ba114948eea3853adef5bd8959d15b3083906f413. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f4b93ae5-e65b-4022-b0b9-a790ebd727a8.json and https://artists.proofprofile.net/proofs/artist/f4b93ae5-e65b-4022-b0b9-a790ebd727a8.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 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 0x4eb213e051cd85902a5e1c02bb6747dbfec86cbaf0cab42af8eb3b3c229edcb0. Chain 2 (Bitcoin): anchored in block 960306 (2026-07-30T20:23:53Z), 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/ES5590601273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0672f798967394ef4880de4ffbbf0f2a903083e7ce166430d33cb4cbf082d964. 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/ES5590600329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47f50f99c04a36e123c30699163c2c1558911c7f725bf9629c17b96bfbad9aa8. 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/ES5590400440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d8fc5fe82f0d4f36f5960c9170b36a947cca02ba136706e78812f1335bb852. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/ES5590901047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ef30457a745d44a32fc2a01c317716a274cabfcce58cc1c2409f2a2fa6954d. 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/ES5591500314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed3ad6a7fbc71b104661c66baaba30b6b4c8d5e86dec600cecaa9725329d618. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/ES21A1500041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x227249aa3d76837e7b1cb16772727fce848315a6082d4d67fa7b31fda0cd1399. 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/ES5591300084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52bdec84afa71782f14c3c6e67c19986b027c712b60e529194236422594fd978. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/ES90A0900083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb8f87ab7e111aecacc6cfeef0be0888c3d3b269c2fab5ac87f6b4c11a466e5d. 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/ES5591500315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39bb8ab918091882828785161173155b8f508cdea020a51344f78ef5d55b749. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/ES5591500395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x367221302d2e48de2457250099ec63e23ac0d365653714d4a2b1ce81560419a1. 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/ES66C1009112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe20abddadc4f4423cccd033c76de0e0f54197e1d1030fac9d919fa38867dd900. 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/ES5591500318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac80dee3f8f6a98370a46af4da63d68151ad3253d8259b3fc8e1bc7ce3f9e67. 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/ES5591500316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d6ff910be34cb86cce62d874853c93caf3ad3886c09cb5595ac3ed80c2be5d. 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/ESA081400750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39b544cf1e67193684b98e9fc839dedb0e3a04d38339ba7cf57a22e822ec0765. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/ES5591500346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b3809eee9a6338b3854e2c82fd095e121d204f63065dbedbb88d66d6615c37f. 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/ES5591500344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x530779257a906d9a523bef6ed862103bff4baaddbe421b374270a53796bbebf6. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/ES5591100284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x020e2828e9cff7bcef9fe8ac5dbfd614ba12655f3f7946817159bf220c2048ad. 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/ES5590600603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x748fa86873b91c601404fa6f2ef24100a8f2afde7c3937614efbedf9081b063a. 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/ES5590603541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ab4c03a90e4f8b309241dfa3c9bcf4d401075cc8c4800dec113150e547da84. 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/ES5591500311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x202ee7e20f088147155c65b427f7477c1f7591c2ff79aa1238e5a8e2a17359ce. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/ES5590500257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa92999c5efbf2c715af235c3efdfd4f83643018ed4d4b6151f1c211a9ec9a6. 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/ES5590600927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd9d5a9ddf1a93447526c0ca3f172044a9ddd6828d62d6c89ff0ff2a0c0b796. 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/ES5590600722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6895262aca5dac07ef4eae76ce783e01c49c1f6ded60c12d811c482282af8f. 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/ES5590601320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f532f79bb479cc0b15fd61732d6750ce8221c9bd649c064552c7a8df81a1f9. 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/ESA081850552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59911514b9869eb1511cb9ebeb2db324af202ed90412ec862df6cbec9bda2c26. 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/ESA081850553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2b64d9f9daa7cd17215ae6c4c279cfe7e750f00c450faf3c989762217849dd6. 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/ESA081850554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d56160055923dbfe26b9d5034d1d3e4250ecc28adc85f59e2a9dd97d6b81e89. 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/ESA081850555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeda380f26000081ecc695f9edfc8e2d2ef71a1ab5aa61ba759f81acfdd5cc9d. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ESA081850556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c847fff1d4f3edce8f47333f83ea61a9f89f3b58995c2b8ba34ae6fc5961381. 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/ESA081850557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaccf9d18686695de8428efb793e560c8c06b304e61a52d9a69ddb226e1487fbc. 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/ESA081850558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b5181422d4ff897a4f9bbd17a479e7ca088b43e48142d7edd5a1606f49d79e3. 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/ESA081850560.
Elkar Estudioa Sesioak - Eskean Kristo (Zuzenean)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x811fea1032cc86d478f8fe60c4147735c4457a0f7715c568503dbaedf989e6c3. 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/ES5591500236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aa151794af08a1c947b10e219290aba6ce4360cea9c4c2e647ae87f644209ad. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/ES21A1400079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db93e30ede527831509e882e8437b01fb1a120c1fe5065d87ada063c5383deb. 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/ES21A1400080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad34bf6f944bc8818764fc44010b8f045601632fc9b74235b68f78ff1e67326. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/ES21A1400081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2387ac8236a9887e6d3b8f6e69d92989cb250cf0486a5e85c916ddb05dff6814. 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/ES21A1400082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25391fe7380e4d4207b488e4985b42805bfd26ecd783603e2fdd5897c4affc04. 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/ES21A1400083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e32ccc611300ca8631865b8f40630f045cc6d998eda5fabc163badde62353e. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/ES21A1400084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c106975922bf52bdd4dca30881f9150124881228a3ca104cf737595577a1ee4. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/ES21A1400085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b3c7a91faa522e0de96071906c5880857178bcc4899a72f5d3c94384a5315c. 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/ES21A1400086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39c2b260aa3654d4b137a1695410cf45114c2767b86442359a277e104505be9d. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/ES21A1400087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x981a34a1f10d001f5df3391d479b79413d1d1265b24b16102d49d390259e7136. 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/ES21A1400088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff8b01f1e9c0a126e07f3a9241f6db474c4d5017d0ed01ce1d7e7be3df954e76. 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/ESA082200411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c2850c2deff2daf5322a32879d4df50db48fb7434bd22bee030071a22244238. 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/ES5592200254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d604adf29af178969c8d3dab2a8caf1b573262701848a7b6c851a8741375c5b. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/ES21A1600038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x173be40209e3bd92b46e7cb164eb3a8fc80deaf72b7d4310957938369b9ea0fc. 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/ES21A1600037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40426521c529aa774248a560ecb360a85c125a2300df478a53bcc2fea1b53bbf. 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/ES21A1600039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa8de5f078e2af6d158d643811ac24638a366e7f3c0910fe9beebf995e0549e. 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/ES21A1600040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f56398024a262b6e8b1a9218cab90b47b052a942b6f6125d8697847f7544512. 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/ES21A1600041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x292c368eb42b2f0caad70cb5b1d9eebec742f33eb9a2f3781aa083d146a5adee. 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/ES21A1600042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd65f15e53f21b050abeedcd6c125039b6026d8f40c8626802946aef71e30f08. 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/ESA081900491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf25ce847843ec66d38687eb0e4426fbb75edd4580671e6ed8aafe6f863c0b3. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/ESA081900492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0baf731da52b94283f28cf84f0b6bb93dba15ebc1ab9517c9a4944a125e04bb9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ESA081900493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf437220cf79ea90c25f13053cee8c368b1290d040d253aaf68531b164b1b7a77. 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/ESA081900496.
Elkar Estudioa Sesioak Vol. II (Zuzenean)