Elizeth Moreira Cardoso (sometimes listed as Elisete Cardoso) (July 16, 1920 – May 7, 1990), was a singer and actress of great renown in Brazil. Biography Cardoso was born in Rio de Janeiro, Brazi
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 0x15a830e3f913a9ecb995f6fad04104d1625dc922e3980e3854e66e5b2d0f98aa. 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/11471481-9074-450c-9753-38a88b6746d9.json and https://artists.proofprofile.net/proofs/artist/11471481-9074-450c-9753-38a88b6746d9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Elizeth Cardoso Apresenta Canção do Amor Demais
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 0x467456f3323f438977c1d717a8e7804965e3a547f048c2cd391ff13494ad33e0. 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/BX6IC2000572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa859db2fd5c0a82b669e07218162f66daef13176d3b6df6a77f798afb02343f2. 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/BX6IC2000573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2882a7211d0702da4ba9b3a5717940f938b7bc9ba78968af65de9df7e0e4739d. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T02:17:57Z), 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/BX6IC2000574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe65f2ae6d89a7078ea00d85aea5c3eb0182c00a8f39a5598d60825eff5c128e. 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/BX6IC2000577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ccab8580677e39db81fec4a11d23c247f8e5f2bea0f1a300809d4804b00725. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/BX6IC2000578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f45c26e845abe8b4c0aa2ee8865117a9e2cbe6dc663c456e174dd4ffc04eef0. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/BX6IC2000579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4dc0ba49ed1b744eb338af2e5101bef12264b65f690f5ad0d4399573468ffea. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/BX6IC2000580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff861fa10503113a9b954046bd17951f861709afff00cc7fb1886e443e2a40ff. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/BX6IC2000581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa05ecc1011574dde87992a53e44d2a2eb9b27a79d897f13661a570c9c864b785. 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/BREMI9800064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde686d2733dd3d06ed3f35fb1d81ac60a213813ece1ea25a2187a65e822304d5. 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/BREMI6270202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7daf18867833ee2aab2252780c3d00d73c1d0abde5c84efe4133ee651aa8b426. 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/BREMI9800030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd78ba22d31aab9daf8f746b131d7e8a5eca6ed13c8588d1e81ceb1f1dbf5e073. 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/BREMI9800088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b5e44d857e6f86f70b840b9c9ec668e27e33c5acea0b046c36eee55a2087ad. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/BREMI6600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f3260eae5ccf9b4e763c3d1805ff9a906e1359ac2dc4067a86c8a3e7acc8a0f. 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/BREMI0400554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b9b9421f748d6d023e44d605f7cab2d0349e880007dc76f6b0fe071daa2d773. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BREMI0700088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f7c4df0655a689ef3f51dfa85949881c0610e70c27a6bd639a97527863f1ed. 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/BREMI0700090.
A Bossa Eterna De Elizeth E Cyro (Vol. 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb1252cf4daa9836a1751dad2cb11f60e3483d66c9b58e2376c7c0478915f550. 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/BREMI6900002.
Elizeth Cardoso E Silvio Caldas (Vol. 2)
Elizeth Cardoso E Silvio Caldas (Vol. 1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x117d18e6c174e0ad2cbeea8519c2eae9d9368a61d662617246ffa62b710037c3. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:21:23Z), 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/BRUM71900302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x775da32a7e791b21a107ab3ff1ebaba611286ff77dea6354dd5c6962e1a3ffce. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/BRUM71900290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb1252cf4daa9836a1751dad2cb11f60e3483d66c9b58e2376c7c0478915f550. 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/BREMI6900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d68a3014a5e0d79a5b2a29abd61ee1602a8d1538ba938386f57e2f4842bc2f. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/BREMI7400781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b5a72f11afbb3ba5a648d856267a516398c96137395e203d0962b3fa57231fc. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T21:17:14Z), 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/BRRGE9000032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610e52d324671c4abc6ea4ac3c69c688de72f79b12f59db7c253d6aff389cfec. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/BRRGE7900327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d49d6eb86e9de359b294c82e8b0c96108af729b90a0e3247b65b5b365fe3df4. 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/BRPUI0200319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf386d69ffe00c0d6e1b29c5adcee65d5192a4410ecc2b1adee6d2c4b23c0d38f. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T16:46:31Z), 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/BREMI7400779.
The Music of Brazil / Elizeth Cardoso, Vol. 1 / Recordings 1955 - 1957
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32fed6e260c783963d4c370b0c913262ce8551791110f1d29302c8342fb515b8. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/GRHR10952109.
The Music of Brazil: Elizeth Cardoso, Volume 3 - Recordings 1958
The Music of Brazil: Elizeth Cardoso, Volume 2 - Recordings 1955 - 1957
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48384b74e5a44e3ec31e2a5cde330ee832ce1fed4a92d22c401443ab8dbacdc3. 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/BREMI7300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfba97ba765ee26e41476fe2d1f645b1f1d903a4d83f2116d4840e325248e2b5. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T20:05:45Z), 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/GBULZ1200339.
The Platinum Collection: Elizete Cardoso
Canção do Amor Demais (The Record That Started Bossa Nova)
Olhos Verdes - A Elizeth Cardoso Collection
Canções de Amor E Paixão - O Encanto de Elizeth Cardoso
Essential Classics, Vol. 912: Elizeth Cardoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x410e191197ba73e007e6c8ae3d48c7dd2afc420e76e90638c796b34c82fa8c22. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:24:22Z), 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/ES31E2509263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ddb63154b6ba08d826ebbfe5186fb064b97bae69a4083848a20315a711e6da. 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/ES31E2509265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f92766b0126ee52cca4cc71681249774a2784ce0a40bc69763f2c1b28e336b2. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/ES31E2509267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91590f15275c66b413b3cf38f7a76359b135ec1604cf69f2483b3a5985eca098. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T06:52:22Z), 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/ES31E2509269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c46b64d9795f53b09dce0bad0a845fb27404b869ac87a630f314efb0f51a9c1. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/ES31E2509271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b142dfae3d92ef21497d4846dce0b34eeed4b8b50a6465dd35a3c5def849119. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/BREMI9800092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d18b695727a3b4c443fca76fe6c1d425f778d10e2dd86431449cc66043fc14f. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/BRWMB9704331.