Roberto José Ledesma Gayton (born 24 June 1924) is a Cuban-born American bolero singer who emigrated to the United States in 1960.Billboard - 17 march 1973 - Page 56 "LATIN-AMERICAN singer Roberto Led
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 0x62f8ee819ea99f91266e733db4228261feb44a910e8d9f2b6aa05e2f797102c2. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/956dfc34-9198-42be-8828-e01969caf036.json and https://artists.proofprofile.net/proofs/artist/956dfc34-9198-42be-8828-e01969caf036.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 0xf93ccd2f49d062e93f7ae8d2416d9880b0145ce6175d8fe711438c7a63f2e630. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:24:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF367319401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8613925f09167fd2f81afca605b0411bbb6d0b2bdb7ee0b241a99b6b21f8d35. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF367319429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60843f273840623314d9f97025257cd4a5cba3cfe0dbc827f5b9eafb6ec2b1c4. 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/MXF367522514.
Historia Musical de Roberto Ledesma, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4040da7a78c295b0e166a68a78741d40e22a0f295549355b28aab2f00f7deebc. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/QMYW20600349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf9d1d2037e3adcfe95e81a5c5d8975455b5d1be04b636f32ec0bfcfcd398777. 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/QMYW20600137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf2f0f34edacb37d24740cb3ddb921aba50706652d8a41d2620d5195355537de. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:50:09Z), 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/QMYW20600227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d98332b38ff50917db2afda8f6f831eacefa30e250c5ac2ee409dbeb69b7260. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:01:19Z), 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/QMYW20600202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea9ff56494797175c58a7310121164cc5234e12f68c3afa2e01d66897d3d12b. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMYW20600205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe9e498af4b9ef5f430924836267577f5dedd6aad385a3ab5d4d0802cf017fc5. Chain 2 (Bitcoin): anchored in block 958351 (2026-07-17T02:38:05Z), 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/MXF367522519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5623fe733ee33675b6a2443cf96c68109ed12efe961bb0063cc762af56071039. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QMYW20600189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d98332b38ff50917db2afda8f6f831eacefa30e250c5ac2ee409dbeb69b7260. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMYW20600202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dcd3a7ea22b5b577493c8bf5476c443dc67ef5b5c0b0ae5e9f33b011b8949b1. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMYW20600223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb6c017d9efe2dca226aff696fe4bf46fe9423ed12b3b3ae3c1f326ef67359eb. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMYW20600215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf9d1d2037e3adcfe95e81a5c5d8975455b5d1be04b636f32ec0bfcfcd398777. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMYW20600137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc50cbb03693d2afb4bf9b3a2010e964388d6cbed1267290fab3dececf8f5a27d. 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/QMYW20700891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2df870c3fe8e7111da67a0bfe1593f093068bdae1fc252034f25c061d47130b0. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/QMYW20600111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x576b679f6d13171579c8ccdfadcf160a3d8ae792c4a9c427fb6783d462a962b2. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMYW20700884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb7b9b57828ec028c65c42c70271ff2a4a1d4df129e45d3f492fa09d10cfe893. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/QMYW20700887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f1c49130b14ba01ceb74be4ea0ed6c30065f98cc8a90e91962d94973e30a623. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QMYW20700889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aca9cec408f7b9637b6ed3b771c0fa93544307025eeea636b49572056102797. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QMYW20700890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e40ce69dddcbeb6048843967bea28c883f0d248d43e4d653004eb9403df956. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QMYW20600213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90421f153860fad47cac6e489f8c827ca7002cbff13a50cbd7f7c305d33c6ef5. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/MXF367420867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4daa7b978f1d79bbf3547c613aaf811e708d06f34425582b491b7cd334dfee4b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/MXF367420865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd205b8d37fdbdaac8709a75018454f989b6702dfe7744653841e455ee15704b2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF367319430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31fdf36fc72d128926cf0bf1f75c52ccae8d60392ae338947d07c546eed73e73. 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/MXF367522521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89dc8e105be7681c12d37bff7c78aae754924d7786e721ec95ed52a9c53cd9f9. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF367522512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb69e70993b0a76dacb34696b0a6fa8e79bb45926b7a8d92958d5707a16d4f1f8. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T01:53:21Z), 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/MXF367420870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d883073e44e5e413ac384f0a75e7b6776da6b041b3da5d8d3afdcff7b4fa47. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COF010501760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba4a39d74e5d6d3b41a51594a0a8d0853b4bba1646a89dcf828e87e64ddc94e4. 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/COF018901124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7300891808bc3d2ebf6245f7637ce26aca8e7ff12e352f42d77295697b0dde. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COF018902158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae876f4e4974681d7de2aa04c27a5a1c983c9d607b976bf5814fb8a54a4adcb2. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:32:59Z), 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/COF018901135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d2ec9d539ca14d5a2737e12baf2bc24c3c2d9d9a65dc889bbb881ece63be2aa. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T09:55:59Z), 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/COF010501741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44ebcdaa7e28ee8f4007adbd8027df585995e0c55a810931e79e5ce8d3d50ae2. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/COF018902237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6973c468b5a97772d62c916c34e966677f5339b826d3e75290f969f2cba00aef. 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/COF018901542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99061d2a17038658ba221f32602acca8773555a1387aa10c10d2a1a143276065. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T14:09:46Z), 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/COF010501704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce0017bb49d3dbf85a13560e871d9e69bab8f375dd38d5b73117b6af8d782dff. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:41:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COF018901021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28503122dba60e149943737fcc50b9efa6354319fcf9b51560ae089aa320b172. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:47:21Z), 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/COF018902687.
Historia Musical de Roberto Ledesma (Vol. 2)
Rescatando los Éxitos Originales de Long Play
Rescatando los Éxitos Originales del Long Play
Historia Músical - 40 Éxitos Inolvidables
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2053b08e827c90234cca34e876b583aa987e84167624799812e21182b66a12d3. 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/COF018901839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9b060b12ed8036d2e38b34418d66c0993a4cd26fc3727b0cf6f40642643c313. 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/QM6P41558438.
Duelo de los Mejores: Leo Marini Vs. Roberto Ledesma. 100 Años de Joyas Musicales 15
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07390350670c43bf64aed0a2e9f506830af110bee03b1e0ce061c3bbaf355449. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:30:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEKB71655296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca6c6ab9cc4bee17d40ffd2af1e9866dfd1d8044fada30d42985fa4e88c7e541. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:30:00Z), 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/DEKB71655298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef33fb45eac33f6eb521732530c7f2f7c221b81046cc40ad49fad94ef274575c. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/DEKB71655299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdb0a18313d7a00b5c5545c60dc6d83c2a854563afe6ebcf2c080eb51dff316e. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEKB71655301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e2aea0504b970eb13bf7d6c39642985fc0d34814eee33d1def7c81a23863917. 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/DE1A32128864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e70057cfeb0bd00f8bf1ecf5055e1d17675d17e94a44c5baacc976ae8ad1363. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLHR52113872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b8133a62d231048a5a408074223718416b89629c7a4790dfd237e7746b20e3a. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/PL06V2318748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ef4498b122e26e3bce05984dac0a993fa27d4c6243121984d5f9424f6510f9. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/PL06V2318751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1bdcfd8b5b0f7c16b49d8f986ac4f52e432e1462b28ed4a5aadd510f0c7b1b1. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0Q2417496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe36340a06f4a193ede528a3e3d6b0f82d005c90c8144cc44ca1d31f8aaca9dc6. 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/NLHR52170980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3deb35a3382b8b81f10b066d92d4964485f3d5b11d2fb6cad40981d00225472. 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/NLHR52170985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f20fb72d880bf050174e77b0d5a2895ac76a53d3fa6e8f7f60277308087970. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLHR52170986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x064aa480a7bed3ec343e1c39b757cd791eef66703d2120684739a82f0a80f89d. 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/USJ3V1495936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa07cb31a9a8520b7c2cab942c66b856bc7eeacfd9ca3e9d897db877b6f819d8. Chain 2 (Bitcoin): anchored in block 960430 (2026-07-31T16:09:41Z), 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/US4XG0303593.
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