Mariano Uña Ramos (27 May 1933 – 23 May 2014) was an Argentine musician. Uña Ramos was born in Humahuaca, Argentina, near the border with Bolivia. He was a renowned Andean musician and composer, a vi
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 0x67cc7cf38019283133650fcc8dcefcf892de1aa5f1ecd68e9bcfb39c81cf1269. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e8158e35-4ecf-405b-b897-880ec80b45b3.json and https://artists.proofprofile.net/proofs/artist/e8158e35-4ecf-405b-b897-880ec80b45b3.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 0x9d22336e53fd697faab4d3043e00ec9d4138cf5dae5e07cc90df8649987cf314. 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/ARF310500144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb1237f5651873a3645008a751bd9b39bdb406702b73e4bdfe2d5e5147d07afb. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:23:56Z), 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/ARF310500133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dbe2769380a242f9c32c98ef81fe7db7524e5d6b43643224951907a6ee17105. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/ARF310500146.
The Sea Princess/La Princesa del Mar - Techno
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7156df582bdd8fa00ddf7fe2edb8119638f12171393e55a98b51fea851fef6. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T16:30:05Z), 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/ARF310500198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5c204daceb4fb886894b47dfc0a19d639f620d87f3b2bb5b15926e97643aefb. 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/ARF310500203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e282a32e93ea701da9b3aaf02f943657af017785b764f0766effe0f0b3fbb7. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/ARF310500204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e1970f5bc47e3b6f718f34f2de5eb5fccbb38144c2ffc036f639393ad6060d5. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/ARF310500205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e69182473082ff32f05a53e170e9668b236c42acb7628b88a8fd88cbe89eec7. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF310500207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea114924e321f71fc73e4e4c47d4cbebf1142e231d67690651379f83b8caf7f8. 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/ARF310500208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95abb00731586fc60853097df0bdbc9d9a23befc3bacc5daac0e29df1c81893e. 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/USA371091912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cd4dba76fc6604ae3f00738acb7737780349c63069e8fc5c8926dcd16ad49ce. 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/USA371091914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53847625594397b09dc42e04e7f0a3991d3299c4b69c1aa83cf84d474bbf7912. 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/USA371091918.
El Pájaro de los Andes (Le pivert des Andes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8177e2f68ac8989244a7d2da34511d7fc625dea4b88ccd271105eb3e9b568444. 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/ARF310600115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x396ebaa49609831d861274f6e08b57799fb83e52935023fb115256575768aabe. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/ARF310600116.