Héctor Omar Hoffmann Fenzel, better known as Sergio Denis (16 March 1949 – 15 May 2020) was an Argentine singer-songwriter and occasional actor. Biography Héctor Omar Hoffmann Fenzel was born in a
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 0x64e2903afdae213f4edbad9c07de37c94a8be903be0d6ac5a8402a0eff97f31b. 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/09c84fce-f08e-46a0-ae47-706144b13c87.json and https://artists.proofprofile.net/proofs/artist/09c84fce-f08e-46a0-ae47-706144b13c87.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 0xa4e1b9a7d3d58baf17d69990c579a8b50386c9e289301e089ca391f1fbba3f8d. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:28:04Z), 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/ARFSB0700695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd26174996321a908493d81ad017b7797f7c81b9efde99220f4a70b19abb7c6d. 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/ARF100900812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc20a8ce1ca5b1b032ea35e180e532b38f2b8b4c835c931db08938c0c2d5a5b9. 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/ARF109902321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26c9f9075c4d3882e11e0659bb9d5aa735b70392a99b451d9d16b6ac480462d4. 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/ARF049500516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd20d4fb2f5477b384fb141349416af2f7ceeeb6f0f30212a14b21494c9672b2b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ARF049400390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a563461ea2656562365aa2beabe3ce7a2d55bc64b5d5c1d742cfedd06e538f0. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:08:27Z), 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/ARF049602426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a0c4a03ca1d0bf64ae324965c8b760b277e9735f00bc0f0d0ea59bd5399a9ce. Chain 2 (Bitcoin): anchored in block 958117 (2026-07-15T10:25:09Z), 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/ARF049400317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda07cb013b991bc7e5c0aa27ca1d111034fbaff5ca56a5548d9e928cefbdd31a. 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/ARF049400320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a2b558fd2868c683ebe95b0c5f4a7a0b569194704b8ba4f1ec07a95adc405f3. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:05:23Z), 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/ARF049600042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00bdb692b4ec7b74ba91f2c65431cb2d00da13bc52ec714fabae9051d7ca798d. 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/ARF049500521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a210982129556bc49f0b07a9e79f6ae709b7446c3223381d711fcae2ce10ee. 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/ARF049600057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1c9eb313b263cd3949c1c28ca5b9be452017e0d69a01fb18094851044f51d39. 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/ARF098500189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5747e39d19ad371e98676338942b16f2935022ca8b966b52aa1045c71205b0c. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/ARF098700113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda8aed4ef501ce7d430e584726d3a045ec72968a492fe8b86e0324b4d8dcac9e. 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/ARF149900028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd961aa58d126f5967e9bfd0e83f7f523deea812a439f86e2744fef96971a3d0. 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/ARF149900029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8f8eef386cb816059a4c9d099e6404d9efdbb81b8e92f82bc8ebdab7fde6f4a. 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/ARF049400318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc9bec63ad75443002887688921455ae88bb82dff16598423e55757a0e223f0. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/ARF049400319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b48af442001c6f06ec83cdbfcb6a2c97a0ba28bee408aaa7a9dd3201bbfd419. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/ARF109902322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5750607485108f3dc8869ae1acc9678e9647524976101bde69600a8a0a5d1fd2. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/ARF109902324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4dc49e7f957b9a48b3fdb6510fd6c3f3e2f4b4c0272eeec040bac90809c6654. 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/ARF109902327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf4124381b98c1117e16faf746f8ba055c119f186d5a0dd61ce4268e408a42b7. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/ARF109900532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf30a1fef165636aca680f5d9612efb5f110e2b22b81669a44cf42770477478c0. 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/ARF109902329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4b776e3906f54ec8cdd4d3e5114d75a2df9a04d3c09182ff27a40573ed1eb68. 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/ARF109902331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba37f2e37564e21d707ca492359c8beb2f07977d43ba27b89f899adf5f87b154. Chain 2 (Bitcoin): anchored in block 958117 (2026-07-15T10:25:11Z), 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/ARF098600036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c1e5471e05c2acfbbd88fc955e069eaae25fb7579f5b174d04b307fdb34a11f. 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/ARF098600155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5747e39d19ad371e98676338942b16f2935022ca8b966b52aa1045c71205b0c. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:41:52Z), 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/ARF098700113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ab7c4b51a5907c06827eb859fe1d185c12a27bbe50921b80ffdc9ebe34ac66d. Chain 2 (Bitcoin): anchored in block 957822 (2026-07-13T08:02:12Z), 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/ARF098700114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb24b449292fe51c8c26d162524ca31badd2bfeb0dc4963684d82a61a472ea313. 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/ARF149900027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4b23cbb1754ed0b0b6615cf1f5029fb6050f2cdae6a9cdc9a1c97167363e889. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/ARF098400178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92032274c6b31a825f3a29cf0db646b230ed6a91d4e0c5290e211b3637dfaa54. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:15:49Z), 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/ARF030300244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cee972b22f645fe42d3d9c358c9a6742598e11e682db62952c684833bdb8719. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T18:25:48Z), 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/ARF049501390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe08c5dd8c3f3be0a78b802af26cf5b57b0c9c7cc5ff29f5627c561adc9d5d604. 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/ARF049501393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf425d81b26d2d30a28bdfe5da5f6916e89d3f5ff9ba907f02af0c07a274a549b. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/ARUM70800031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a62ac6865d7994854923a5ce78b9de69f36409c5e848b27c3cc3c6280a460f2. 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/ARUM70800033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x484f12aae764eca440037d21cbb725468a4552cdc5972b294f8f011c8b36f86c. 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/ARF097700074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c1e5471e05c2acfbbd88fc955e069eaae25fb7579f5b174d04b307fdb34a11f. 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/ARF098600155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c159377316af4d563de395be1325f3d86b630a12620f6a572cb5b8067d17dfb. 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/ARF098600157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc67b836df27d5643b12974cee8b1474745b20e3f830aaeb7b30f9a389084d6ee. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/ARUM70800034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf30ba2358e82aacd637e9d58bb56ba89d4ae14c74ff463b59d1e51effe05dde2. 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/ARUM70800517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eb8f9405abb0d873a0371dce129d6c3df29013c75ce2d4ca0887e3bc6ba913d. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/ARUM70800035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34491b9299c0499e32c01dd66d36d346ca1deeed82b36071c6a5aebbc18f4ccb. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/ARUM70800036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0d1f96dc991a6f5da17e0b287cc9079ae122537be7f98666ff1ed7cec5a031b. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:20:41Z), 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/ARF098600156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d330c355815ff903b8430cfc6a7abb05f4930dfb54c6a03f14ff92226310bff. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/ARF097900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7886a7ef249098b54a045cd7aa774ae3c5660ba6b004a7d8efb87a2ac540d09. 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/ARUM70800037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9299de3866083e680a1c6209a867517ceaa91d0c3333c6851f1d3b93f9b3c31d. 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/ARF098200231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8500132012ae35dbdf5c7ba607884c205879404b8265a288d25c1bf5777a7a8. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ARF098600158.
Nada Hará Cambiar Mi Amor por Ti / Gigante Chiquito
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4631c96175c1c8e960e862f3b9ca309856bf6b9722f4e56dcf5c2997a3cd5cf5. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ARG991029003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc20a8ce1ca5b1b032ea35e180e532b38f2b8b4c835c931db08938c0c2d5a5b9. 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/ARF109902321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b1fdb3b7b4acd4fbc733d515a3649c5ecf2fdebe41c846931a840dd3b81c23c. 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/ARG991010475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf448e5a2d967e2664c97356195a2d366b97e101bab530520d5f32e2e02cdb1b0. 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/ARF100900843.
Algo Más Que un Recuerdo - Tesoros de Colección
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x995d6be41add8698c76b538b0a4140977d1b907507d44b4c90438b064cbf7e52. 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/ARF109902323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b1457e38672e3a9768627079eca09571d4c2240c7a2ce9778b03e650ec38b0. 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/QM7281557090.