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 0xad036060d7e22368e7cc9c2436cc92f4eafeee89640c304379e244367d3ae12f. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6a271395-00d8-4350-b80c-ee028008ab67.json and https://artists.proofprofile.net/proofs/artist/6a271395-00d8-4350-b80c-ee028008ab67.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Maria Rita / O Sol Nascerá / O Menino de 47
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 0xbbef6bb8f58e33d01eb1cd728e15fd94bffba394f0857f88e7c9ac4c890b1182. 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/BRZPT0100003.
Cântico a Natureza / Liberdade, Liberdade / Bum Bum Paticubum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5038e6393d444f1f67df6662188809c7f3f918b41cf666443a4bf55100414908. 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/BRZPT0100005.
Talento e Sacrifício / Raio de Luar / Falso Amor Sincero / Conselho
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f916af6e65269c0b46a20380d038091441b4dae1856217730438ad6e8a5e068. 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/BRZPT0100007.
Minha Fiolosofia / Agoniza, Mas Não Morre / Vou Partir
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12b38438cf0cc1b460c851fa07bddf9bad93f699da2607e00941ca268161cef5. 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/BRZPT0100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb476b98364b7672c2ebb41d40b12d94d15e477df775a4b89e2afee859430ba68. 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/NIKIT2202350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf85dc6d987a5f081737f07f6016c2724d7ac4b13bfce8a29a3cda6cdefa11da4. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/NIKIT2202352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7017ea79c1bbacd453a6da6bf4c1814a090c1743d0b85504a62bf02d46f33fa0. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/NIKIT2202354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd2211589345092ee371489efc7cc23aa5de69f973400d6c71d88fda4c1b8d12. 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/NIKIT2202356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d4c03f360e3d9b0c8f4b04896fa9c217d4654469877ced2a8dca471471e23c. 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/NIKIT2202391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e4527b95077045e718258ad9eff494c71cb68c9cd732a907507b8694631036b. 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/NIKIT2202394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564b95973962ddab7bb7d7735dd75af51f6fa674ff94058abf4eadc0134be5fe. 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/NIKIT2202362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb6a23aa07144fa63db1bf67c1be0484455965951161152e6fbd6c6a14a2981d. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/NIKIT2202414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3106a181192417aa30cdb79775e73c48240e3ba064759ebfab8d40c96b439dc5. 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/QZW9L2279652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde6659905ae6d9ba794855b9db731b37cc805efafc490ab401382aee34bb3fb6. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/BRZPT0300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ac1abb5b2a7fdaebd08a2490c2cbd733e5248fa03b1fbba7205665752d6c32. 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/BRZPT0300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87d230fb9129a2e9b2b7eac3cdf895a15c2433aac0c789d915a70c53df3c55e7. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/BRZPT0300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb62feebd7f3826ea732dceeff7a961d5d177d5f3ddcc69104870080340cb7f6. 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/BRZPT0300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e62304a24666d4827acc411e7f9d76e4be7c3db8d412792aefda8263d8f0d5b. 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/BRZPT0300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf89fb10badee80b03d5e8d37b14f3516e74f9d7b71a4c1b20e30a74335ba10da. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:48:58Z), 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/BRZPT0300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc40a6b133f617e27df0b230fae6a8c02a2ff4a6fcd170567957fbcf8944c0600. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/BRZPT0300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d4c03f360e3d9b0c8f4b04896fa9c217d4654469877ced2a8dca471471e23c. 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/NIKIT2202391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f7993d612cf5013833bbfc09d382c14c0d0f02790ba82b827e02e51fc92d75b. 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/NIKIT2202393.
Perereca Quando Canta É Sinal Que Vai Chover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90be14ddec884cc0b43dc0201240c6c60ba76b09a3ef8ca596e7b6a9180ea121. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/NIKIT2202395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x773163c61a720c31ad32b0851e769044cb2379b1aeb6442b546695f90944e023. 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/NIKIT2202399.
Galinha Caolha Procura Puleiro Mais Cedo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc64258ffbd9a640cc4e0f25e50a99ea0cfea0ace803c14a52a407726d549adcf. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/NIKIT2202401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b37d6b56f277c47d9bbcd1bbd88c2b5d531cfdfac86a5663c7f31aed7a7b3b0. 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/NIKIT2202402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae82463460ca20dda1e8d633e90ce3085d3508a338ffee7a5eeb0319d7c492a5. 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/BXQC22000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe59823ac61c3864067cd32bdd5738ee86544b545d71fed02f1b5d8e403ae0a0d. 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/BXQC22000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d421c2347d502ec1d41b33b2987e5e1d0f923ece41774c19539a8388a1d025. 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/BXQC22000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a26602e40a3ff74ab9ff50db259c00b646484ee56ec8b6827c41fcbdcf3b5eb. 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/BXQC22000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd66a2f29c04191bb58fea0b43009512f4238e0fce9210b696a9b442234fe0d. 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/BXQC22000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x404db8f9d11f9cc921ea13b777d5c7fd84a7b9747246692875820d22279c82ca. 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/BRTAP2101180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2e30a8c865203133761510055281ad5b55852553be29e41c868de51ea08efa2. 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/BRTAP2101191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bae42d6f970b445b407f91162d3f807631f42b80aca5259263b9376c9364fd0. 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/BRGAK1600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x572a4ff24d02c725b4a4f5d1c1058765fb5439607eed74d53e3da76f2a53aed9. 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/BRVLS9900161.