Carlos Burity (14 November 1952 – 12 August 2020) was an Angolan singer. He specialized in Semba music, a traditional Angolan style. Burity died from respiratory problems on 12 August 2020. Albums 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 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 0x33680c197028cdf144dafe68d7df0bf9d0c79b237ebadfa38a08dab5a86ada28. 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/d1571cbc-4b24-4dd9-8f05-f53b4d2c1057.json and https://artists.proofprofile.net/proofs/artist/d1571cbc-4b24-4dd9-8f05-f53b4d2c1057.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 0x665911dc688e9c4d6bc4971b74f89ef715c9dc22e7e0f4b62a52b584363a1c62. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/PT4CA1436288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac399b9bf93ac9cf113dd5d418acdba28a7605d5ce7340de8e2c861cd1c7bd25. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/PT4CA1436294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0d4830a2de6a8f75909e6b5d81611bdac2fe52f6089b06152446860adb1fda2. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/PT4CA1436278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c8939df1832be2c474211a06524a56ec78194d550dbaadff6cb430609f0ee22. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/PT4CA1436276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78f6774b95f106896713cb9d9e83ae94204fe2693ed20a3cdd14b9580f8dae52. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:08:10Z), 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/PT4CA1436279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54aca0e2490b3b6ef914974c84af0fb74bcebfbe1db984c9da536064eb23fd2. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/PT4CA1433152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57ffd4cf41500ad164eca073d489e15b2263a5eb2553ab6e5122f11156f5b9cb. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/PT4CA1432976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52f5c21c5352dea5f7d0b64b624d366954117d7a56af75d9a8e604d999ce177f. 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/PT4CA1432979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb740c25ccee8dd5ef6c5ac64af3258a0bd4c24f41ec1756605fd3a405fe6cc61. Chain 2 (Bitcoin): anchored in block 958678 (2026-07-19T05:59:57Z), 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/PT4CA1432964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c1e8417344539768e7a852e7d599b1d24c8abf835f4722134d9314dbf8cc33d. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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/PT4CA1432969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1f2bdb20c0c5da401437d6f7310b3c61993bc6040be69891afa96ad1bf5a05. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/PT4CA1434570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2dfcc303a837d44921dabb6650877f72a738f48a8c5883a812a3d463126b79a. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/PT4CA1434581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca6d9b5f473bbd619761754cfdb4d48bf05110a537c6eb4c05c29d4fa4ee78e. 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/FR54E1201392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaa57e63dc614e642b6d2beaf569a0098935b6eb30fc01030345b2fe71f3e291. 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/GBKQU2580517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe578945a401acd830c80175b1c19659f680ef00699eb46f5eefe354fd42dedc. 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/FR54E1201722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75d06ad6a22f00c217efe863052299d6295a1810c3abacf3c11e4a88057fa48. 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/FR54E1201726.