Tanxugueiras () is a Galician folk trio formed in 2016 by Aida Tarrío and twin sisters Olaia and Sabela Maneiro. The group aims to bring a modern sound to traditional Galician music by merging folk so
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 0x8bc7e43331867eed38f7e662c47b8f9f073b12397add8cbf35d55c52fd1392ae. 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/73aba3b6-6376-4434-b094-2ddeb434f42b.json and https://artists.proofprofile.net/proofs/artist/73aba3b6-6376-4434-b094-2ddeb434f42b.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 0x02f172f88dc860b412c689b04012f13615695d0cf83dfc915c4608932dd0aa2c. 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/QM4TX1857503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3594e5e8e44a2b7b97bd28e5b6a86aa1407f06b44ca40139b1d1646282b21bb3. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T08:32:30Z), 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/QM4TX1857504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82017ef1d7a6503f28b642815961f7daf94246f05c0e939d88c897c63d99ac98. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QM4TX1857505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ae67d2fc4488752bce1d12a39b2ca8ba6843e747b85c14d65470568aee24bb. 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/QM4TX1857506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x822d809374ec42024040cce7ca3337c2b11d945b060986963d9bddc892b1a223. 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/QM4TX1857508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x812804bdbe25e1ae25e12cb1d21555b687308572fa0bb90d062ce8565e0707a1. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/QM4TX1857509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cdb2e4d08c428e2cc2338c46f6ab842111402c0636db6c7f8236016ad30a58e. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QM4TX1857511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e5a2817f429399f3468334c8755bb832e4705a86fd70c186669fb50e057c28. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/QM4TX1857512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cb4438fe24308ab9fdce28c5b68af7947f9f6bb130880afe68d1f7672169b06. 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/GBLFP1974767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddcb394ed7f719f3b0a74a01087e4d02c6dc143837d69ef9a562bc494ddd749b. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/GBLFP1974941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5572c353d5496c6a8976f434eebad98b71cb5df576348669fea25bc8e0b239d3. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/GBLFP1974947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae9a80baa698f3233596a571f4a471a623825165196bd581f4b0868f93e2849. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/USHM82326440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3632b3091ee8e8f9866a59463d89b12c102126fa8a186409d038a263914f616c. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/USA2P2224803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aede29c20eb39d1584165c993e37bf43c78688970b56d3d3cd9582733b9f8a0. 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/USA2P2225150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb95a3db3ac5871ce22052976dde96a0d2d544a82bfcdce2f758921584810f12. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/USA2P2245029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe534ccaf4428ff051a5ea6c02ab19bf2a692b531c19e73dc77849b5e5c84dc6b. 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/USA2P2361601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e102bf677be5589ba113773701717ed4747f4ddb9045c5a0ad88f5c67f2793a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USA2P2361399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3fca080f05383651714e9fab587acbfc59f133db8dac415dd0c2fd561c8f68. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QMDA62186821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c46369c23396d4284febfd9dadae0dde34174f0bb04084084e094f23e5ec2a5. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/ESA081901494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa099d087e04c47c24469afdd439b676ff59ad3d89cdb2b6166a9e9cac1d5334c. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/ESA081901497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfccaf1b0fa299126b430b21f864af1a2b752b30b81eb235da1ab054c3da57455. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/ESA082150531.
Remanso para morrer (con Tanxugueiras) - Sesiones Moraima 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ee584c716c52cd33d97ee624af91a1120ff84d0b124e832eb79f17d8ab4f3e. 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/ES5152400634.
Remanso para morrer (con Tanxugueiras) [Sesiones Moraima 2]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ee584c716c52cd33d97ee624af91a1120ff84d0b124e832eb79f17d8ab4f3e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ES5152400634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5273653161b253be10cf4ba56279545b67f4e590c20ee97c939996283bdb9bf9. 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/USA2P2228053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578189330dd055a81dd7163dd5451adf55f06ce6e32943b4593e6e37302f1cc8. 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/ES94W2300168.
Fariña (feat. Iván Ferreiro & Tanxugueiras)
A Irmandade das Estrelas (25 Aniversario)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58911d76652d22fc2b683783384e3872e548d450622c95ef58cb27e47998c227. 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/ES7012100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3fca080f05383651714e9fab587acbfc59f133db8dac415dd0c2fd561c8f68. 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/QMDA62186821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa74af82fd210ddc2f7caed22f0a5c117483ed754c35fa75200ee515ddf477dc4. 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/ES5022202092.
Pobo de Artistas - En Directo XX Aniversario
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb679d9624aa90afd672b449a065e36fc694b811dbf751467eb0a5842c0c7ee64. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/QM4TW2466844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf60e4d10e41b23a92754efd6aa41d945bfaab895fb106f2ee0fa33e954a9097e. 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/ES71G2501435.