Daniel Dorindo Cárdenas Gutiérrez (born 1936), known as Dorindo Cárdenas, is a Panamanian musician and songwriter. He is particularly known for having founded and led the group Orgullo Santeño, and fo
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 0x79553b053eea5a2656e0b1c76111491ea644d39626988c11a33d767037222ed2. 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/05231928-c356-4837-a3f7-fc871e756eee.json and https://artists.proofprofile.net/proofs/artist/05231928-c356-4837-a3f7-fc871e756eee.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 0xb3438b2b4b4e781c857517434437239de4dad101ef197b10108ad7254df0fc57. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:12:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBMJG1605894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87c299f7eb8db0c0eca590c2909434c6a06b9fb3b4846e615c18d804c38aafd9. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/GBMJG1605895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x235bb38b31e690245649ef63eff8cc41b543b854af04c4e57eccc43ad9e26d68. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/GBMJG1605897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x119017f3c95cf3978cdd778e9ed5101654eb2587a9cd707e5b8510d69bb99737. 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/GBMJG1605904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97570589e5297c2b0eca3ba81ebd92837cb0f2d4e73783293d20236afd3c808b. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/GBMJG1605906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c9a894e27794878e1a3f3a5d6297b2824d7b7ff0ef488b009f122073a668a0. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/GBMJG1605907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a34c108a1f3f0918f67da5c55e0d8f5f161205e4d939259fead93b24e5cd31. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/GBMJG1605908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5085db0f92f7e3fd66708fcb4b79d1798607db5449bfae84c3bd481a69aa75fc. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:51:59Z), 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/GBMJG1605910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd6f753784e66fe517b0f5c5bbbb81f3c3aef54b4d036844f5cba0d6106d1ae. 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/GBMJG1605912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a2c2569690e28696103d370a9faaff95c63cc1b442129a5f0678b5710870c00. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:18:44Z), 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/GBMJG1605913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x701a8c5030f936db2ba2e7f15a6e850de75cc14d38681f548f805a30f995a626. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBMJG1605917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69cb75bd58eec9b2bb6aa339b577850c33133096c92c74b90346427eb7df866a. 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/GBMJG1605921.
Dorindo Cárdenas 40 años de éxitos 1957-1997
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85429070c072304cdec2cd155707c69d896f5643e5ae9ef024b1365ded99f480. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBMJG2228731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x393e055f9d84d23298e590bc64eb4610b9cc02dbf2199845f0c119c180e8ca18. 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/GBMJG2228733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f625551c5f8571f69ba53eb14d71555ae69cb44cd879883130760ef1c5fb331. 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/GBMJG2228734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a4e353a484f9d57c476cf3ec7eb5cb2b148e675d2a5732f992f5c6aeee87459. 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/GBMJG2228737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9af076c351b540eccb575aad30b2c4b7421edf7dbcd13a253f1e72d53a3ceae. 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/GBMJG2227664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30676eccf394fdbc115a83240424e144c4e76156ee019c3fbee5a82ea431af6e. 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/GBMJG2227668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f429499b999d13bb69a86fbfd5e5bcf5d8eaef52c00bc781171508e9bbd30c. 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/GBMJG2230037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9e5f25d986c388a9e80ea80f82120386f384532ba856abd481716bac24a5973. 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/GBMJG2230040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f2d30e01029b3ff4faaae6dae79cf6ed871767f63059e383cac43cab460be8. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/GBMJG2230043.
Dorindo Cardenas Historia Musical, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9662f9417292a087c158a7d2d9e915b944141a83bc96c02612b9181dcfda33c. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/GBMA21874978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a9f7d6b82c50290a80c0c9a4afad81efa380b1d7099b5a419e6e501d18c773. Chain 2 (Bitcoin): anchored in block 957684 (2026-07-12T09:22:41Z), 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/GBMA21874982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2800e15ce7e78e41cddfcda8e0a4791cf2491dccc1638da2410a44e16bae336. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM21061065.
Dorindo Cardenas Historia Musical Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceff2b072ffc61af1c97800988804ac1112f95b1c7f602800073f3a4867e37d9. 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/USHM91061020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x537f2cf7a492f1a881a70468976e844911c7b9bba379cb7ad75eb3771d7cc675. 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/USHM91061023.
Dorindo Cardenas Historia Musical, Vol. 3