Eurípedes Waldick Soriano (May 13, 1933 in Caetité – September 4, 2008 in Rio de Janeiro) was a Brazilian singer–songwriter, best known as a composer and singer of songs in the brega style. Biography
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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8e31f8dcc4c4fe64bc0059dd0a9cc32da7145f3a668df368a6afec7de5c3f61. 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/620a8c0b-ae15-4b65-a4fd-6c24be4b81bc.json and https://artists.proofprofile.net/proofs/artist/620a8c0b-ae15-4b65-a4fd-6c24be4b81bc.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ee8b4f102b5e98c489af09feb0a8e70ca60f04a8a96077556c7da687a40f9b. 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/NLRD52217202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3316fbf2b6789b979cb5b6ad1110444a44f5a428511646bee5a4a3b07297b408. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/BRUM71706476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafabc2d99401ad1aad2ad4b3c7d1846ea2705ff75006d2226a46f0190998ace0. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/BRRBM2001096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25b9ca136ede5d145d3a80ee2b1c51b4e39c845c20ed0cf3b7757886bf052b9e. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/BRRBM2001107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5acd00087d64c93b42832b346e4ebd5a3de52221e1c360e162078136f66ce18f. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/BRWMB0100950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f90065674c660b107d83621a2f14b459edca84a63bd1516e39cf158d3bd417. 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/BRWMB0202325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b3cdbf74d634d4d7cad2d830edeb0a9269ea40b64b4744c2394755c69ab6abe. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T16:12:29Z), 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/BRGCD0800079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd72bcb437613bfe4bcda3cb78049985267aa3cfcb2f5119cd43ee95b0c89ee3c. 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/BRGCD0800080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e29505eba4320d93b9c626718e553930d17251eaf3c1981983c6ce3e191807e. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/BRGCD0800081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x335314b0d5cce7a8d7a330501029f58ef7ff9a64629ddde957c9182146ab4ced. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T16:28:12Z), 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/BRGCD0800082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef1ed1dc75c9e11fe8b354aaec7145e2314606b1a92f52464b156fcca7e51e0. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/BRGCD0800084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcfd755752ed28e23bda8ed6de5a104ecb4c5ad2fa51ff26d9a6418b2bcf2fcf. 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/BRGCD0800086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x100686857036a87ecf65f48816c3dbea7500aa31f37c40fbaae376c41e3118fd. 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/BRMAX1402357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf9df8bd1f3866a7d16dde826cf26629546f4c44cd91571af9988c040f419131. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/BRMAX1402358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d213b771f7a00ba256ea578966a37c7ba8f5c3981d8d0fa435d9c293fcf72b. 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/BRMAX1402363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a3b13ff91219bc5b2e36f4a510d56730aff1f7f1e281e1fe4f571d5f39649d1. 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/BRMAX1403302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4dd1c2b6f2cee5645d2c0bf8f175caca0805fd24690cd58c69fbcfc11d86cd3. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BRMAX1403306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d0c67cbc656f07ff80f05793cbfad6208aa8d5d15a31cfa916852ddb05b499c. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/FR96X1760220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ebe068672509b0429164805dcd4f1fc4bc067c02cac6d75c4cc37484d7fbc6. 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/FR96X1760221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20eb6653550474388b4d61433290a8a4678d01e479eaa1018a0ac05672dae6ad. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/FR96X1760224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c568978f18a3b16047774e5dd0c05ff6b4cdcaca9512e3445b9fec7955aec7b. Chain 2 (Bitcoin): anchored in block 957556 (2026-07-11T11:14:07Z), 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/BRN1P0700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4308f2a0e4b19e7a50edefaac31d31d2637935533c7b32459d145b8c174631b4. 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/BRN1P0700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e46ab5c20ce2728e17c1a5ebe17fb01b385c4a2c07cb280d31473dcf3616bf3. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/BRN1P0700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e5ffaa81c2fbd5b604ff00bdc54fc7206474682479c865f7ac5420b050b8ae6. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/BRN1P0700004.
A Saudade que Você Deixou Aqui / Eu Vou Ter Sempre Você (You'll Never Know) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f3fbec1332f1b5dad156e568541abf7fd2e58d9b26e067bfade096c938d6f40. 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/BRN1P0700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aeb9913ab303373f42dd8efe4936d96cc29d5e3a5122db1a8e12bb6e7b56ec9. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/BRN1P0700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad47c3afdc54c7f7810680f9010a3376288ecd84d3358001769901ed2a2903c2. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/BRN1P0700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54c342fe345258fcf68d07bdefe0564c980c6a992aade3b1e84c651d290d258e. 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/BRN1P0700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaaf4c61a34982be2e5dac11484a5c9e2528a0507a600a27aa12a12e1382c2dc. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/BRN1P0700010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5978a694d191b27085b5f582c600e84af4c58bd2d929b61c69e1caa85b037f6b. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/BRN1P0700011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f5d701504527b073d944ad00c810f5b315b38c0382c2c038d515cc932bb43b6. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/BRN1P0700012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x398d1304f10248316fadc8f915133cc9d3f61635454abe8a797bec0f23e887e8. 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/BRN1P0700014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb89366a29c805a38d5d2a6f56924e7b4d1be8b26845ef08596a3e1abb5746f71. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/NLRD52018955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee388be714233501824b11177b536487393295febbf564473460e2c0321df43. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/NLRD52018958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2498ecdc9e6293d795ec27c74406205d66447efbdf73fa533c54101c63c7afbb. 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/NLRD52018959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d91f2161dd1b8ea8712e2dd13a626748f51787cf85273fe28be97f47026e39. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/NL8RL2457281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x215f1393c30e83b93db87fd8e330ee9c86e1eb0e4b797ac4164abc706fca2960. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/BRMAX1501299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cef220fcb0bd5ea34b600e0ee7377c09d7d5d9b6c2fe046e09400ee1c41a6cc. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/BRBMG7200024.