Tania Maria (born May 9, 1948) is a Brazilian artist, singer, composer, bandleader and piano player, singing mostly in Portuguese or English. Her Brazilian-style music is mostly vocal, sometimes pop,
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 0x4e88eefae554dec3a85d2260014d233475400a026fd2124816f8722892d4ebf1. 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/0c9b55ba-1bad-4344-9db3-9df400742270.json and https://artists.proofprofile.net/proofs/artist/0c9b55ba-1bad-4344-9db3-9df400742270.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 0x3a1013fa7a26d2fe377c0014188eed6fbb4a3298b444f2695b7421a31d946e70. 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/DKAZA1400196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbae90702a5a1a37816bc993c0005a56fa1232141448ac76867e0605f884b6092. 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/USC4R0300824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb89f714b2aaf81ff8fc80d24d3405c77afdd7031431803b93389bf6810b31a. 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/USC4R0505969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeabd2f96d465c93ac6a967896acb391a18530b062e46350c74eda690f20c8d35. 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/USC4R0505991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c2dc4e61b630f05fe7c6a1fc33c40a94f74c7cf6a48f94bfe5f43bbad1a094. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:42:52Z), 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/USC4R0300830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6eafb27c0c06d858b76655892570655bd6d041088b1d5450f9d1d1d40bc8e4c. Chain 2 (Bitcoin): anchored in block 958647 (2026-07-19T02:36:14Z), 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/USC4R0507859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcacfd2a7e8366a9893d6fad22ebf57e0341cc4a1d718b6d83ae1c390a0cac375. 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/USC4R0507855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d5411e88fd6d247ad16e4f72030d70a68bfae2292f04d9b9da87f701436acfb. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/USEM30700078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf90a7f5bda28d788d4e7cf34e8d53fb972e07a6889e304a47d2360447807954. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T22:58:31Z), 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/USBN20700349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x770df162b2fe401d49dfbb04560247ac59dc3396aa92778ee5fb8b0559ac02de. 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/USBN20700353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877005baad36ab853453a79b2271e0fb8bf30252c42209fcf92bfd8214c434b7. 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/USBN29000117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d01331e7078198520f66d537c38fbf68e6daac80ce86685de39fce972ad5da. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:22:30Z), 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/GBBET0704179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47014d288de8fd4d100a7f7b34465dedca7838618636a561189b51f3811be0d7. 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/GBBET0704180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7cbdcd7e4d6ac5d67dd7e5cf52c4449c1d4721987360740ed88239a79abc939. 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/GBBET0704181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38031363b787b0362177f532ee17984d11cba37820fe2be339ea24be7724465. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/GBBET0704183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9907405283ec4790717e78fb895ad23e918948c9e045048f8ee9507007283f8. 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/GBBET0704186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc22a0af94f825a19243be989bab843262c22c54bbcfc28093a912f4ac9ba11f5. 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/GBBET0704167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e237459d8f362c8e6959f1f4b2bfb92989bd7a8fd97585ec02878df7e55c649. 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/GBBET0704170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18107cce6d03da0c6d2a2e899b584f33c76057269c6f62d66673080c487daf5c. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:48:18Z), 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/USC4R0505974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ba99d8fca3188990b2b18114df91a1c5a11b2d5fe1a342dbec9a902fef8498. Chain 2 (Bitcoin): anchored in block 957848 (2026-07-13T10:31:25Z), 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/GBBET0704190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfa7d1fad53a37a47f75b1ac00768ca83c22596a2caa8f4ef50f410ece13a5db. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:24:24Z), 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/GBBET0704192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a1bcc8d82e00f1b8e6c30c05b88a31a683a95bd21ee70ff2f1eeadaf0b8414. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:41:54Z), 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/GBBET0704193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e3bb755dbf9fd52f118a24b1333a48a47a508aa65c2a912c60e22827dfcb718. 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/GBBET0704197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb64a15e93e466c29e571dc475537112e91a52e9d9246e39debbff7a41e2c9ca7. 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/GBBET0704198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa2cad5893db11ac111aea283ea2a99dfc315795010140b594ad9dbb0fcd9f36. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FR7V30400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x980dcf45347810e3e6fc2447dceae4069efb5b663355f5b733bf2dc04e1c5757. 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/FR7V30400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0f69976891b44ce06cf6eb8843fbd78d79ae9bf1ea390802abacf8f66009977. 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/FR7V30400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90b9a912edfe2ff0367648f558477ff9a6a1732f119aca8c5c3edce254e0311a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR7V30400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56232770afd1433c51f712abd5bf995305f8b9a5037ee9d6a289332cac2bb737. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR7V30400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52f34c508fbb03f5b0188c99dd13a576ec7936e3a1e4a38ee2b6a7c22ac04e26. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR7V30400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe32942c05b188a385ece086fb5a33b4591e0c07f6f08bbba9ad629829f604284. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR7V30400022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30a4a0bb64f3b8ebd70e9097b8234244e25d37b10f42dd87df04a1f65421b49. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FR7V30500001.
Lifestyle2 - Latin Jazz Vol 1 - International Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35c6a160139c5e0d23aa63b0ccd86a3b7e8eda2afc17e5be18ad8a528c74dde8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USC4R0505966.
Lifestyle2 - Bar Jazz Vol 1 (International Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0047f89e0d7326cdc957d7df47117d411811c0e7285a821c43d22947bd0f8a45. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USC4R0506244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1576c596bae5ac43f9b85918f014d395d10f2a868e61447f40ed3e43023dfb15. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR12Q0400146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb872e90831ad1949b6c66a507a113308186ba2544970c9d7c27ea718a356efb. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR7V30500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcacfd2a7e8366a9893d6fad22ebf57e0341cc4a1d718b6d83ae1c390a0cac375. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USC4R0507855.