Grupo Coral de Cantares Regionais de Portel
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x9a68ee7481d241cb2e56e4c19325e1a5ac309183c103ecbbfbda347312fb13f6. 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/b3825536-931f-4a7d-9b05-76f7a2887255.json and https://artists.proofprofile.net/proofs/artist/b3825536-931f-4a7d-9b05-76f7a2887255.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Alma Portuguesa - Música Popular Portuguesa
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 → block OTSBitcoinBlock must exist at that height 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 0x168c6e7e14635f5ae988e84e0ab2071064ba4d84905c0d016565fa99e71989da. 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/PTOV10300172.
Grupo Coral da Casa do Povo de Peroguarda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88bcd3adfa8629511d9f1633ac24834e3c236683fb77ad3cdeb47ae19ec8e240. 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/ES71G1619769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x076117fd00b25feb91a66a16c42a5ef97ce8430c935a062fb48e09a894e8febb. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/PTOV10300171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x168c6e7e14635f5ae988e84e0ab2071064ba4d84905c0d016565fa99e71989da. 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/PTOV10300172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551e10ba05692157902d714fa80bc5f9e7708245cc7833bbab5fd55d5b2e2c8f. 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/PTOV10300173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18a52d57dc9fb4334daec91b865613d687023e9c7f9ef63dcc015f8317a47b5f. 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/PTOV10300174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd788c543bc3bdb6dad032cce6e2009fdb8ba92e259d51a35d1f5ce1b22fc9b73. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/PTOV10300175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8a6080b09084ade0024b6ac466bdb0baa91946084b24238e3e9ca3d34b76bb9. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/PTOV10300176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1754907ae5c045458fc723e352f13c008e6b9ceb88594806a677141173945c81. 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/PTOV10300177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7625d2d82f144e8b65364a13c182718f273589e842a2b7c3b69411ca41d9d4d3. 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/PTOV10300182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8842bbeeafdc34e8cbad61ef3d452784fdd334978fc3bc6b2327759d747a9a8. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/PTOV10300187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4caed112cb42907766b6872d78f7bb1f5d337d0e34d883197295b04691116387. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/PTOV10300158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b4137692a9df1a81f0710e65b79e92bab80ea1cc93717fb5ee71f43bac291f. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/PTOV10300161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e838a8091c5c66a255fd77ce54da8c9f851680672e368711357d5559d682095. 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/PTOV10300162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dfae659b2edeab2cf395741e5b415686c19aff18e942769b4568fa67c296980. 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/PTOV10300165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cdcd5c00cc01fff8737f230ada290000592e874e88e0558218e6df3c598c0e1. 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/PTOV10300167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bbe83445d859b99de7b3680bb973edde36a0bd29baa0837496a682e8db1a2df. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/PTOV10300157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x076117fd00b25feb91a66a16c42a5ef97ce8430c935a062fb48e09a894e8febb. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/PTOV10300171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4caed112cb42907766b6872d78f7bb1f5d337d0e34d883197295b04691116387. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/PTOV10300158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x168c6e7e14635f5ae988e84e0ab2071064ba4d84905c0d016565fa99e71989da. 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/PTOV10300172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551e10ba05692157902d714fa80bc5f9e7708245cc7833bbab5fd55d5b2e2c8f. 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/PTOV10300173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf2a7508927d7e9c4385aa5668b9ee6cfddd267636baddc19c331b926777426. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/PTOV10300160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18a52d57dc9fb4334daec91b865613d687023e9c7f9ef63dcc015f8317a47b5f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/PTOV10300174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b4137692a9df1a81f0710e65b79e92bab80ea1cc93717fb5ee71f43bac291f. 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/PTOV10300161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd788c543bc3bdb6dad032cce6e2009fdb8ba92e259d51a35d1f5ce1b22fc9b73. 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/PTOV10300175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8a6080b09084ade0024b6ac466bdb0baa91946084b24238e3e9ca3d34b76bb9. 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/PTOV10300176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1754907ae5c045458fc723e352f13c008e6b9ceb88594806a677141173945c81. 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/PTOV10300177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dfae659b2edeab2cf395741e5b415686c19aff18e942769b4568fa67c296980. 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/PTOV10300165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa591d2ee062c0dc9e7d4ce6d8e6d68ca86cba1d45e752f878338d4fb4e8d1ed5. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/PTOV10300166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a114d133bd3a9121f16dad77b87b39a7918316209801e28fcecd1b135fcbfdb. 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/PTOV10300180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cdcd5c00cc01fff8737f230ada290000592e874e88e0558218e6df3c598c0e1. 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/PTOV10300167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc94f5919519b70a9a896c3620523cc99bb99c15d151f847318891797254f13c3. 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/PTOV10300181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad374b7a35a7d2bb2d66fb846d5836293ca520dc1ad4b443a4e1a0f3c77f45ec. 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/PTOV10300168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7625d2d82f144e8b65364a13c182718f273589e842a2b7c3b69411ca41d9d4d3. 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/PTOV10300182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d8a48708645c19b734e256d3e7bd087d7d7048ddce422b36904f8ebc823b54. 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/PTOV10300183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b7634337fc209fa86be7030330ec293a8cd4e04bb26082f80094b4f46b76f89. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/PTOV10300170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56deb9c8f5a9c2b39c28cd1c6c811f8fc83df08008d6e06fd1e566f63d4722f6. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/PTOV10300185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ffd531b044c6848ef9d6bfb7eb2499cc6bae1f6ebbaf17cb078e8cda3b9466. 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/PTOV10300186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8842bbeeafdc34e8cbad61ef3d452784fdd334978fc3bc6b2327759d747a9a8. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/PTOV10300187.