Los Compadres was a famous Cuban trova duo formed by Lorenzo Hierrezuelo in 1947. At the time Lorenzo had a singing duo with María Teresa Vera, and this partnership continued alongside the new venture
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 0x33b3a1a32dbc25d9428e37ffc2bd4ec0f4b36f8d8bdaf326ed9c5d0c6401dcc8. 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/7cbe8872-d5f4-4626-8d34-35c4e74db01a.json and https://artists.proofprofile.net/proofs/artist/7cbe8872-d5f4-4626-8d34-35c4e74db01a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
El Son Cubano del Dúo Los Compadres (Remastered)
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 0xf6704ba118c177c0ca8e8e691d12afed8234dff88859bbcd9a4fdc5ca41f4a8d. 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/DEUD92059069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x725ae0f176b4492ea53b5a1976f88f101f188ecaa447de95b62241d2c0cf9d7e. 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/DEUD92059077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc882fbe6e3825d299c08437efbdd2dd7300933778a9e381192439fd45ad2f4. 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/DEUD92059084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e5296290d151af4e123b76d2529f3a3a738c533c39513f3afed2ead97bf5aba. 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/DEUD92059101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8d32b120924225da6abd90d44af5864eb3875061b7c76680f2ed32c6ccce7e1. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:21:34Z), 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/DEUD92059080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd737700ab3c4b6cf696dc95a561222092ec393a216a974f65b42ebd8ce213cfc. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:47:37Z), 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/DEUD92059082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19cea02cfb328f248f20f3051438cce7e3ace68e27bdcd4b512bd2f43ad46f80. 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/US6R21363834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c43e58e2cc5ce10d4e612b1c137edc4d7446143154b3e4c8e438685db468a6. 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/GBSMU2480390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f6ea30620fe782eb708600b94ab0527b59814d81e5923859d187aa623374fe5. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/QMBZ91584358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc319989fcfb0e0ccbd87e209fbe4338d74ea358d99908bfa79dede132d4939eb. 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/QMBZ91584363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b0cd6b724dafb4921ff577157fc40e9ad2a95e69cc8d7fd1edc95f25aad33c7. 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/QMBZ91584364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe08ad1cae15748fb2b568f8591e01a5ab8aa93a8dd0c497fdbfd43fe6844a6f6. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-16T13:57:22Z), 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/QM4TW1559465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05b282449506bf9b8712141445416b616d34d6a13272f42da72c3c114299fcb2. 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/QM4TW1559467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b7737085ec67402e38a16ad39803dae75cadbf1f121f0c4495505e40bea7f7a. 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/QM4TW1559470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0b85cc840e599627a053ea6c3bf7c531814de5464c10682cc6b344f177b83e1. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QM4TW1559471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeda65df44075c566969e6a2377615dfa0853be8b872e11ea01dfe7c4817cc96f. 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/ES6600200805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2abc2d5b422dfa86c4dfe042d30642e23c73fdc1229a86e44dcb5ab20a87f83d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-16T13:46:22Z), 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/ES6600200807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be75321fc0bbc54ac127656c24724cb5a45895bda1dd3aaf90747b4f5059937. 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/ES6600200809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x597b285cb11d8135531580eccb414badd665416e47d337340d982ab088f64410. 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/ESA011302846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf26ffb2e16c57e2e998dccff954936ce0491dbb05948b0fb866b47cbfab4d28e. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:41:07Z), 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/ESA011302862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x093fbc82dacaf0efdb9fa5ebd7edc17b7366f78d93d3349cee5b732ca215388f. 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/USA561224158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dbb1fe0cebb699749b03868c2454d295f29318189173245e4800e664dea1d12. 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/USA561127108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfb33912896ac2b9f7d581c6a4ed1706daf00acff93edd08e3a88c0b87f79447. 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/USA561127109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2928974de1400a2a5b528298aedafc47719d5d8bbb823eaf70ecd2582fca84ff. 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/USA561127110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d8c81f777f9abd05ecf3330dba12dfec243b379062805552434576538afb2fb. 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/USA561127111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76b17b94b63ef3a4af7ff3e03c0d2ad8573e2038a506b5bb99d56ca6afe480a9. 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/USA561127112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee9e2c981d0ea9fe0a8c382232bb0aac061c1a9e7ace58a088bd7b53b51da8f5. 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/USA561127114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36a5482f4a69ce991172f2e61c1f4b9aa5d98fc27757a1f04b6a5cb9428689ec. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USA561127117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc975c50c267c471c7260fe72174a4db1809799bbb1b7829d9d79504d4d9078c7. 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/USA561127119.
The Music of Cuba - Son & Bolero / Recordings 1949 - 1959, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x230cde55c38f7a3e3c25544ec0d3a87433292d2cde71ddef2c00d486bc1cf721. 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/GRHR11091704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x364b5d5f563916e02db3ce649b565e51a47dce7b0b582544e9ac0d53acb6c452. 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/GRHR11091716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf407aff4411a20c17d633250f29754a479dfe067b93b8b1351733c3fdc94f449. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-16T13:47:24Z), 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/GRHR11091717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08788209846cf10afbdde86c317e4f038067c7da6d5d1ea6830223bb44b40435. 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/GRHR11091722.
The Music of Cuba - Son & Bolero / Recordings 1949 - 1959, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1378af3483959337ef7ef088a3f894b97bfd111d0dc869ae54ad0a87a6cafabc. 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/US78T0506326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e2d35c98ce5f30beeaf4ee3e6a432a68b7ef9a597edaaae5fb4d421f234b6aa. 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/USDBB0990568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96a85ec9fdc800f688147dfcccd2d21d09fdd0826d5653edeee61ccafe15d4e9. 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/US78T0506329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa473f84449154a8b76bc45407bc8cea56772ea78432e1d03930a3e9df6d31c0. 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/US78T0506331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71c655ff3a64b28a094405f2fbfb8276d554b87c545fac17f710965f0cffa511. 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/US78T0506334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7b0dc356cdd4ee683158632c87d1099e457e9d053a02f545cc79a8790a6d0d5. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/US78T0506335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdb95058f69d0562a89c201963e6ba02454fd7990797e220fd50fbe2b99b4bad. 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/ES7710909501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21ca696022038395e789725506cb772d2f83d0670db24f1544c6ddbc29a1087d. 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/ES7710909502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4516534c66a3ea6a7dbaefda8924d3488114606f37611092c25effdbe9109372. 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/ES7710909508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4afb1a8fac4c0b4324b3efc2b4bfc025627e2da043cc224924d6ad0f68b6b33e. 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/ES7710909509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea9abc331d5afae9dbe6b6249d2e0c858580f73a5ecce060ca4568ef8998ce72. 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/ES7710909512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb66c3cedf1a5f1b610f27f147969c70d457679113a74d5427a1c8e275485f168. 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/ES7710909516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07e382f97046bbb7a5122b7b69ae2107b78859bb588b7e1a0bb8e74b687367b9. 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/ES7710909518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e60884b764c3190c45526768506077b2d676199a3a66a4662140315e3c8cb21. 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/ES7710906101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2767175845ef80a56a5c70128a6e69efc4f6701bfd11a413254aef2602b994e9. 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/ES7710906102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc679f2bd76b64ea219cffc2425e11eb439adda473921b753226da52a9d731c8c. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-16T13:47:01Z), 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/ES7710906103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e134e74ac297daea8c51bedee02e5ced9a9fa75ed070800714a119a484ac2a8. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/ES7710906104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x021df80a16a8b8b6bced77afb1942cf43f99b481a47aa865b7113af80df04d84. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-16T13:46:59Z), 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/ES7710906107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd60d9b42bb619144764809044ab28c68eea437d54e03d8a1a6860fdb4ce07c8. 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/ES7710906108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8227876bac2ee09e3e51c7056cec95647ce04b8db045e82b238c21cbbf3a6583. 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/ES7710906109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6cf68e602fa302438866ec19f23425da9ff6957732dfdd8be3dd5ec9bfaac8. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/ES7710906112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72249163428107fef96e68e81925500038fa3b8be8bf5ee99ea9a3aa2a1c162. 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/ES7710906115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc198a6db60f9bd836beff700f825751432f22637fdb7ed9972884107798b3dd. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ES7710906116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a11cd6d56d81602f071de8eb519e2ba54a1538fafed2413f81f7bb70ad3a35d. 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/ES7710906118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a877ae21218f028914b1e9e3d996433356b82c1087c8ae43b6b7f42379b4dd. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T09:54:38Z), 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/ES7710906105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185d75b00069dafb1e3a4de1bbb9aea92084e0b4e6f8063ef417b172e8ea566e. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/ES7710906106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd54ec5a2b34c5099bf52f2be321853c9591a776ca09bc3813e24aa61b67efc2d. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:51:08Z), 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/ES7710906113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b11ad4f2fce7bf8ea82c221444dc57abe21fda99c82d7dec2c4ce74b374a03. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:55:30Z), 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/ES7710906114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc728025740b872515e37dffa4b145cfd667035e0bc2a823422dfed2564fc5f. 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/USHM81760611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d8d28e74c6299b61c25c28540ad2f39360027d89f2751ae24308d90dbf3c207. 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/USHM81760614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x220f0a36b966c7d27cd045516db6f1ca6f15d2d847188c516c7cc769ae3f0af0. 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/USHM81760615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c2fdeae26cd62fef360e8c2952a612a9c050dd8a1f0dfbf059bec095f76249. 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/USHM81760617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b1c1262e02af747bf8f51b8955ad8e4dace90b1676db2db789e9fb3358e29ad. 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/USHM81760620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb4a3531c3fe334dfa2414f374156ec51a367078967230fa9306a42db5437da. 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/ES28A1010317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeefcfd48ced687003e40f60e126d9ed35c2a01b5313ad0e1def913984101d760. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/US7VG1933454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf7f881fbf095a21cd2bee27229bd167b8eb405906b022524e47cb71ddc45635. 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/US7VG1933456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x813093711c3237629a27812f6af4733c02edb5656d5ecf7af6e0db490c9a9f7a. 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/US7VG1933457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3a05384eb5074ca9ca62766300c3b05aeaa8a7e9eb35017dc957b7d7bfebe15. 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/US7VG1933462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d655de36c5bd9c2f21b95aef9f1a142453d78da2548e9ee6ecf20813dfe2142. 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/ES5021600999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b30a92d97d65c7b9ef204b86a484dd4544551891888a8735ec920333dc04ef6. 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/ES5021601002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39658bb89a35e8da1c517bab7f538b18c32fd5741775658d3844565d3eaa6032. 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/ES5021601004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbd17f7af8316789ef8584e1adf17726e2c475ba358224aaf1ea0e4672cc6f24. 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/QMFMF1375868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbd17f7af8316789ef8584e1adf17726e2c475ba358224aaf1ea0e4672cc6f24. 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/QMFMF1375868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c13ddfbef141c25302478c2cb0bf887c3f02e1c49fdf0110d81f4464fe272de. 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/QMFMF1375871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8a585476aee317fd6d407e3f7007cad811c2f1a3f35473669d4c3427d9792f. 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/US6R21363864.