Maria Teresa de Almeida Salgueiro OIH () is a Portuguese singer. She is best known as the lead singer of Madredeus from 1987 until 2007. She also appeared in Wim Wenders' film Lisbon Story. Career
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 0x37fc2fea5f03acf48ec43f2215889de51aed3daf54b0252b21f844d7ce3b3b39. 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/c8ebdac7-8914-47b4-9397-b41a5d19721c.json and https://artists.proofprofile.net/proofs/artist/c8ebdac7-8914-47b4-9397-b41a5d19721c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nelle Paludi Di Venezia Francesco Si Fermò Per Pregare E Tutto Tacque
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 0xcb8008e40d349c5df6b064382ba869fd0a685e89e4c0b5bbdcfe241c491b068c. 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/ITA399900018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28648261c8658afaac24b8526ff5a07cbe8d52b283e07ff80449f6e822b7b530. 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/GBAYE1309196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59c3cd447ac7ac871ad8a86fb3e2314da3115fb4abf7303c8e35f3e1e8f4da26. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BRELD0200507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cba085ad1ae3e6695a771e5fd70a2f79ffcacb76f3d6183304800d79b82e6ce. 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/DEX750400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1180f4afef9d3c0738015d3e924c0a0ac13966092e4d03e4c40982759e68cd2. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPTO09502100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20195e5c210a2f603e6f9907269d86fc6c57f96de8e6d59ffc141e2cbb8158a4. 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/GBAYE1345493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4973be67233e9a10457cb6285f48449d3b31b02642e650bd236f112dc4b8728f. 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/BRELD0200509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a6579e57e9acb3b5d331a0705221500c035c85bd2bdd5d70bbbeb005e34bdd. 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/GBAYE1339442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8afc5bb6b762ae0722ba756229cc9a2cddcf879977329b4db4a1f8d9e44fc70. 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/PTEM10000203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeabdd4290e58c1f6792134b4aa2e87224407f645b4dbfa6fb3ce49d282250559. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T16:52:02Z), 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/ES5029900014.
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 0x722b429d180a23758ad4587fe0511f14b79e49ea302b9adec39ec3c86e49a070. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/PTEM19000139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebfb64077a7090eb72149309b22b15fc1b9061db2166fd8638612128a1851149. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/GBAYE1339443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8831c261f6119e16b606c930e2f3682a30bc503ce01f411bdc526e1137d6164. 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/US6R21217875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17737da352c9df67acec51b7bb7f53111c94047e214e9f5393717edb87d23d03. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:01:07Z), 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/QMDA71566949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2880166a80c102fc82ab5b932495471b8fdd4b36ec17bf7b487fd770c7b12d79. 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/QMFMF1573058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23ce37b6e6a76d5ed0cdc6db1e1e59714d057809e8d949a9595cc704d1773bcd. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:05:20Z), 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/QM4TW1628620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce7467dc15fc7b51a89396b01c0f1fb53e91526174891e5ffc99bb6cc6fe04da. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QMBZ91923754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ab062b137e943c178d6f1bb6b8caaca53640e3f1fe31d339f4b10567edf4bc. 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/PTEM10300084.
Homem do Leme (Ao Vivo) [feat. Teresa Salgueiro]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd7bd39526873e7899392e61a2a64207a2ace495007b6d3b19dd856ebd4efc19. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/TCACM1624943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa97dd32692530cb9b29ce800f832ba64c7edf53ae36b08c16c8c32bb92cf6bc6. 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/FRX621008060.
From Baroque to Fado: A Journey Through Portuguese Music (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ce3591bb776359ef985ea2738df27a8946d550d8a99fd46adbbcaab738827f. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/HKI191722119.
Menina Estás á Janela (Ao Vivo) [feat. Teresa Salgueiro & Vitorino]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43d004495f9abe8d77de348b83fbb8095c43e11c7dfe6d1b73f34ab51d45003. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/TCACM1624918.
É para Amanhã (Ao Vivo) [feat. Teresa Salgueiro & Rui Veloso]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122bd04f2be0f57ca7889813e000966bcb6f6317beb4a034413a8a5dfd5283de. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/TCACM1624948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6c15e994c37882f4134fcf4c11cf59e5061e2a039236d568e2035eba7bb928c. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/FR6V80400283.