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 0x901ca53d8b677ae072bf4b856abf7a0ba5cb95bf54f25b20239bd740297bd46a. 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/bc31c567-3ffb-4520-8d4d-756295b806fa.json and https://artists.proofprofile.net/proofs/artist/bc31c567-3ffb-4520-8d4d-756295b806fa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Brincando de Soltar Balão, a Lumiar Espalha os Sentimentos no São João
A Peleja de Maria em Busca da Noite de São João
Na Festa de Santo Antônio, Solteira É Que Não Fico!
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 0x83494f8f6564ade1c51cf2ef6b584fe277b109650447ea9dcb02941b24066363. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZ5AB2002034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc89107ee5bd96ca88260b7850c8a94b2820d2040392859572af7e8d659d772. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZ5AB2002037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x993fd4b82a1a89c79f2c22115ec1346a004a72ca44c5efc452ecc35c48a10ee1. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QZ5AB2002039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec00ac6194b891a1e98155d9c2c2c18f388102eedfd133789d5dedfef172cd16. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T04:01:37Z), 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/QZ5AB2002042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03f6d84fc067f7babbe3c689d88dafeaac534744df726bb8a4e1247eafbd0b97. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/QZW9K2371415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d15be7029cbf36732ec352c0890fdeb8f4aee545339ca807fc0bbe572825dd. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QZW9K2371422.
Uma Noite de São João na Cidade de Lumiar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c39ea959263e8d5a85a30a9f0758b156c749fe4587ca9b05494df5719475a14. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/QZHZ42289524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d875acabfe8cda41facbefef2343230bac8065f7854422edd87b4117d8e9a9b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZHZ42289527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x384cf585e2fba58b6d7f84e23a461cc9e1b3ff3f35842038ec91653a8922639b. 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/QZHZ42289530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c637c594eb523fad5d367e818d41c2793d702f583f52b6eabbbc74705470fd. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZNJW2321786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e7d2fabd2c1b520548389a4d414172d08eb1ebc7e5deeb4405998bb0030adc. Chain 2 (Bitcoin): anchored in block 957648 (2026-07-12T03:52:24Z), 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/QZNJW2321774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x790e53a9fbcace3de7e6a4a4c383ba2cda04475ff2c778deb7e1bc7803e15b2a. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:53:44Z), 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/QZNJW2321775.
Tudo Que Se Quer/Doido pra Te Amar - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ececdda6862cf76126e8c8c7f4d33824b84baead6a275f07f5d34719ab3d6c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZNJW2321778.
Meia Lua Inteira/Paixão de Beata - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eaace1fb4e0cbb8a8baece39ed7b4e02c727c15860bd543c41eef935d8c9cb5. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZNJW2321779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c81259eaac6db303c513d4039d04af70883040ec586e23480f8fceced46a1cf. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZNJW2321780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37d81852bc48ee11e4fa0f5c5c52907e767856dd1d5ab5195c0627dc91277815. 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/QZNJW2321781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ebc1f869c06cdc5c53985036359a6c4625555f24f7ad84102166f49f2fba1a. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/QZNJW2321782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa1293ee9cda5bd72b4581f75588fac695d351aa0eb127a8d41b447d5bc77b1. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZNJW2461430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec2123478dc74a1ae8c8c3b7d1d4c562aa8952b7c4d5f5f80253819b181275cc. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZNJW2461431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9757fc356fa0c15239435462d41bdbbcf2232e3adb8bff528b36298d643a94f6. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZNJW2461432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb299799179925bcac1544c7408e722e1922e47f847a702c831ac373a7a3e887a. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZNJW2461433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b2ad66d567051068fd69df2c3301571ce2f7b6e6d0befc0409167f40d16cb2f. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T19:50:27Z), 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/QZNJW2461434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4980b102a3d69e96dfd8c3d1c3f7348e9978674eed141f3eba1d184be2acb597. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QZMZ92577068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f4b27048ac89cb05695720951cbf4a96d895a8eb44fe46ef57c76de50b23a44. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZMZ92577069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5391c120f611bcb69a4e8959c1521c482f932424201d379cb8260be7c2969eb. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T09:41:27Z), 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/QZMZ92577071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce0338364908092a93e019faca032034d769046b5277d53f5d2088d84cc4ce0b. 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/QZMZ92577072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa782205e2d797e6cff72b4a53b6d6dc96e020815745aceb7f649cd1cee0a58ae. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZMZ92577074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x443b69d4014f026a5aa0795d2b0ab25bbc97c6e2225c4e62fc98d840abfca4fa. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:10:21Z), 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/QZMZ92577075.