Beatriz da Conceição (born 21 August 1939 in Porto - 26 November 2015 in Lisbon) was a Portuguese fado singer. Her discography includes performances with António Rocha for Paul Van Nevel with the Huel
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 0x7a814cdb31ed6fcf66ff73f3800dc3fbf1aae561366a30ec6eb81bd2813d5e7f. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/186aab99-e155-49cb-9e9c-71925e841c25.json and https://artists.proofprofile.net/proofs/artist/186aab99-e155-49cb-9e9c-71925e841c25.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fado - Special Edition World Heritage Vol.1
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 0xcbe44fab34801eada52f7240756e6b6f8765313955ba18aa5706d183b3873e7f. 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/PTOV10900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd089f62f6c773c9d674aba0171a036b09907b3b6c67f4e8e8907e5f0144e7267. 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/PTOV10700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb858750bf1450344fc1faf43815851a5645d44a2a698ab2ceac6384316664f37. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/PTOV19100030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9766cdff12a06f16e4d99e0e3f43a95942857661365a9076310c0cb215c2cad9. 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/NLRD52409932.
The Best of Fado: Um Tesouro Português, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb453b14f6e9c5d3b489643d66ca637a5977ff4032efa717427e824b61e9420. 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/PTVC16200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c108814c308fba3648ac2d1199b6ba9eb840c94c6fe8e005b61489ac5958634. 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/PTEM10100143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e408e66e24fee2471e47e667f84cab3db231973d733dabe4fbae3ac2be68727. 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/PTVC16000027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36f78a3fd4cf0729c7ef60c0dd6f49416588a65e46b7f342583e9e076bf3e98f. 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/PTVC16100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35409a4dd9a5c59deb6a7ff58dd8eeea777e08107f7116555cc4f0723617736a. 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/PTVC16500063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x915a10f7f99587adfa0cd4fd3318cd2876753e4c0302a63e1165a6155a7e6a7b. 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/PTVC17200084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d056bd33a9abd18c52de9fc38eca579122bb35ce102689c372f8c8e95f45afc. 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/PTVC15900040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e4c47535d5d9a1bc58509ece3e23f62109bad963b8eae1b3e2ba3460ac4d7a7. 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/PTOV10500094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c9bb7e3de5783c5bc5615b1a36cd47a267fe45ed2f779e8b64b7997e11a6316. 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/PTOV19400262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d31aa7eee8b00a53e514878d1446393657bb0de42aaec1b6013e4c96c28692. 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/PTOV19700197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24ab130b85103791acf71670b4afd2ff512051ad4e96cd7a41f23f9d7acd5202. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/PTOV11500105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26760e335391c2cd7fa2086b461c248ed027a336643c29db82822165ab5d756a. 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/PTOV11500109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c3b1f619883979a6f7ada337ffcb15cb2d361f0267a7928f37c75c16534a5ce. 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/PTCN11200246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9d4122958d4a3835c8a3e7407fd591f6e30a38f75b711c8d869d2ad1f0c8f12. 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/PTCN11200258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3290263e40e7df435dbee5e852a96318421b27170ef43ff2e58c8c1b13a594c0. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/PTCN11200260.
Viva Portugal. O Grande Disco do Fado, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87add3e725c99add3ba0390e363d2b21724d05f4c18f52388731ec22b201c415. 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/PTES19704201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6abb6b288e92ba4018122720f853eee7b5665f173525a3e55ec7dff0deceb67. 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/PTES19704216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce91625205975f71951ef87b6d72eeb3dd3dd59949f65cc7cb20b5033c78c02. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/PTES19704224.
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 0x675081bf0fe073b7fee5454adca1e9e58dbc63d69c9ef261f2657855787da182. 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/NLRD52409953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed7478bfa8bf56f52ce6f1c8cf7c22a20b1b0d61ae7c07a5d98838b6ffa6145. 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/NLRD52409955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d8a79624a660c1f40aec925ce1ac91d59a7ef067b1bb7c4cec60c0c51f3e6e. 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/NLRD52409961.