Maria de Vasconcelos (born 1970) is a Portuguese psychiatrist, singer and songwriter. As well as being a practising psychiatrist, she has worked as a fashion model, a television and radio presenter, a
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 0xc903f51a4d6471a72fb3c6706291b1d67911faa21a3b587ded224293829d4188. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d82e9bcc-86f4-4c4d-8dd9-372efb80027a.json and https://artists.proofprofile.net/proofs/artist/d82e9bcc-86f4-4c4d-8dd9-372efb80027a.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 0x451b44784788b3b02eabc39e82c6747f789e287311b6720780f8cbecadc8d453. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/PTKH11100047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc5d070dbf15ab2d891bd68a4c0e0ed851aa3056d09ec4b699c4336de76bc251. 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/PTKH11100048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1560fff0561d9060e06c68091f3e2066f014d806252d982a1c04b530732195d. 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/PTKH11100049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb40432feecfb701ddc4604cda7dd252d78c7bb7c152f879039a916fd7161117e. 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/PTKH11100051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7089eb80631f472fee22227953786322c56a989c5798d1fd93b7ec911033aa5. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/PTKH11100052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9cdd710bda41cc46c3d340e540fedefceadcbb82817b9dafe28266714f80294. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:25:01Z), 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/PTKH11100054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x486e1a4ab2bbf2de01663678ebfc048861097e9772a43c8717b7cbb895a8aae9. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/PTKH11100055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe12d7c23b4851144264b19c4c81eae5cb548feef93a88a05f4165998ac78565a. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/PTKH11100057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e75a50344d82d54bafd4e070aa0ce767919ab13b0ab40aa0247ed2c94e0857a. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/PTKH11100058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28810ec34b46f827f31b4400d68262e345629b52192e62273b8c823960c40551. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/PTKH11100059.
Cuqui Marracuchi (Canção para descontrair quando se está farto de estudar e que também serve para desentorpecer a língua)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7769cadbc6451c165291aacf2369f76d73185f96bf86e1192fdb5d354891e809. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/PTKH11100060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c296e86ac8bf478cd9ed6106426befe0fa6f5963c02690e416498b28a00790. Chain 2 (Bitcoin): anchored in block 959071 (2026-07-22T01:19:58Z), 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/PTKH11100061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31cd2055f78c991cc21860105d7b0b27ffe04d643dff87c9f3627c93d3834d73. 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/PTVC11300042.
O guardião dos sonhos – Canção de embalar com “CH”
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9c0c6964d9618fe25b071e5375e86afd76d311c9047bb74f01b412f57ee5b7. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/PTVC11300052.
As Canções da Maria - Especial História de Portugal
Era Uma Vez Uma Península (Os Primeiros Povos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe49cc1298e86112060b8836902694b8e76f38624eb54b7d351c0ee93e1c35672. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/PT5GP1700002.
E Nasceu Portugal (Afonso, o Conquistador)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca2aa6ae708fa8bf371548b3fe89a51bc0126f40b32cd43419ff645fed5b32d2. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/PT5GP1700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe17b9f43599b5d1bbd2259e4834f78befa8e8e3966c544fd10fa90716015f5. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:38:05Z), 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/PT5GP1700006.
D. Dinis (O Rei que Fez Tudo o que Quis)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97f66aea46ea6be12d99a7dac50eb5f2fb9bc3eb91afde5e9bc5d4d0f10182eb. 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/PT5GP1700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b18547dd439ffd7b7b84a1ffbe1ec69d350ebd08589774a13352a515201a753. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/PT5GP1700010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeabdbd2f2795664316998eb700acbe9b636cf584ce4d3014d1cd45257e427769. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/PT5GP1700012.
João Contra João (De D. Fernando a D. João - O Interregno)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb05e07168aa9e4eb7f34a6b3804c3c0ecad829fcb23e731bb424b225bd7747. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/PT5GP1700016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d87ca5ef20ca1d71f7f4168a9009f12650ea79e61d23f021395c4cf4b9be8c5. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/PT5GP1700018.
O Rap dos Descobrimentos (Mas que Grande Aventura!)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x031a411c0621edd6792c9822542a9eb2da75fc0939bef2b62c0334b86548022f. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T07:21:40Z), 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/PT5GP1700020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35c82007773c19c8be092cedc2a098ffe25767b8a617b9130128a7729eaa81e1. 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/PT5GP1700036.
As canções da Maria - Especial Corpo Humano