Deolinda () were an acoustic Portuguese "neofado" group, whose music often deals with social and political commentary. Founded in 2006, their first album was released in 2008, which went double platin
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 0x50f8a55f71c977cb59388ec0236775e474f98dfbfa34e7219523e77a4c981ef4. 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/05a00c28-51e9-4f4d-b606-e432f467c3b1.json and https://artists.proofprofile.net/proofs/artist/05a00c28-51e9-4f4d-b606-e432f467c3b1.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 0x91b607f447d2e3bbe7917223c1dd3bc76167495fca08565da761c788ae471645. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/PTIP10800039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e4d8fb24e06ba7722b0ae8c79cc2843643c7ffdba1b4928c2aeb1a4e03a89e6. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/PTIP10800041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63bbc17392202d1b80397cd8f5dd0118a82557048d6019ddfc7116c4011b91dd. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/PTIP10800043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf616e744a24e42aa05b031224ed0eb9d29a6b768e2ac9fc4ae158b5726d167. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/PTIP10800044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3af400cb110e206af0714b529b14a2683d6c531626e2e27240274e829bdcdb4. 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/PTIP10800047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf85f34ec6908b2eab185700db0b498fa4bf79b2a12cb5bd08006ac76eaaa07a. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/PTIP10800048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa59de4d20de637b492b308b4c64f74d98152c14c9520f010cb6ad0b2d875ab34. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/PTIP10800037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e6f15c65cbd7cd13a3dc3b1e5a69d6c9fa77b7378a6998274b729b7a7bdea37. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/PTIP10800046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8d335a117f3adfb5d49c30b96e264b71fd5ee4aab8dbcc729d50cf35318a4b. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/PTIP10800038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d2e39155be74a2af485c6c8efb1e988441778da359c2458daf7fe2a14c143d. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/PTN011000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x835ac067797525644f03e1438754a160ca3cce45c1f965bd599882c7d142ce02. 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/PTN011000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a82ba9d4e79118f46fd898cea4343e612163aa1a2f62e8378b8f58b6bb600e2. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/PTN011000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e260628942bcfb9098333f90fd378ec26b054e091a6a5f6127d123830fd1fab. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/PTN011000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x720bdcc93f6af970b9d4465c4de5f42bb897d2d9b6f5f6d45162859810fd0923. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/PTN011000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x720bdcc93f6af970b9d4465c4de5f42bb897d2d9b6f5f6d45162859810fd0923. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/PTN011000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d6e353daece53047d5f700115e7b23fdc14b6726c9af78c28100735c8f5bc1. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/PTNO11100026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1175825ae704adf90d41e30c92d3620b7be3da06e0fe2a90084647e438ec467f. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:04:03Z), 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/PTJT11300041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b8b18395900a3bd6d2957fc7547fd16a0aaa7224769c1b2320ab4326a56e566. Chain 2 (Bitcoin): anchored in block 957767 (2026-07-12T22:25:13Z), 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/PTJT11300043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb881eb9b3faae5fa27dcd48f270231e5691ef1c8245098fb09e42111895f8a01. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/PTJT11300046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8891465e692e354257a004e4caa3a6a05154527ecf5cfdda5bdd7607d3be082. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/PTUM71500470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34258c7b3a80b0d5383ee789a60496c3adb1c528b444687c1d14fa394d7d38e8. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:56:10Z), 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/PTUM71500474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e216b67dc7751197be93511f164873eebe241833e626ca6df0e357484677e44. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/PTUM71500469.