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 0x018679984f487eb9549996cffb2514b8da2ff885bbbe9bd59dc8a92d768e5e18. 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/e3a27efb-c81a-42c8-b554-aae2fdb5778a.json and https://artists.proofprofile.net/proofs/artist/e3a27efb-c81a-42c8-b554-aae2fdb5778a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Na Harmonia da Umbanda 1: Pontos de Umbanda
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 0x0c016a305787dcd399ba5b6584cf94aff9d915c0ee9df1641320c878d8d6e422. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/QZNJX2188057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7190d5baa962cacdf7deb441c27fd7102e8a9e4989d608be9cae058a81e9d90b. 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/QZNJX2188056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb36c255a92db3979ff8e0e54419c7ed53b35bf3af7b370386a427fca91ece360. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZNJX2188059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f5dc9ea5320a90638d6e500720de5c13290ad9436db76668e771faa1c655658. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZNJX2188060.
A Estrela La no Céu Brilhou / Tem Caçador
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be0c3f308ba610d7419a551c6f83903edd8dbccf6b7e9a7c5b7764c4034a472. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/QZNJX2188061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9506ec2ef3dae1c0a4613ef763cff24ed5955d1389abbfe803dc6e3ba912da01. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZNJX2188062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd5aad90f72b23029405ff372665285c504ff3e668e7d884119c5d84081ee803. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:18:13Z), 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/QZNJX2188063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98da65f7a27b638c2f986b9b31dbf5d76abcbe4085f383307a8a205481d148a9. 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/QZNJX2188065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b41b834c973598d0fe2043b9965e0ffe27718584a39c24b9fd50096661aa0ad. 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/QZNJX2188066.
Na Harmonia da Umbanda 2: Na Gira de Pretos Velhos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98f5eb2d7689535a91b491efcfce273e3cc4d898d1f333adea9d05c34423209f. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZNJY2101064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d783f446cf08fd5d812e146719cf9ba91bc17b41e0cd93a72a4ebc41f527b9. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZNJY2101055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf2711ec3a846d7d95dca9ff5293c44442724d8f938f3d26b73df55dce6f0844. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:05:44Z), 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/QZNJY2101062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x549aad66f17f6ab4e1195e57b07c4b9d1ec4c6c07a3aa67cb9044c04b66a442f. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZNJY2101056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f833ba2bce8a11f7e8a51727f9d165894949bab29f0fd940f25f895896d403. 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/QZNJY2101066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x910db031fc97b3365057639bda9f660ee995f25c5e3d7d794c7f9fadba454ac3. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:38:01Z), 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/QZNJY2101061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde89e78f5c26ae0d89bd6a56359ea182a28e9400672ee02fa8b237eb564cf484. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/QZNJY2101060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7d12977973bfe453be00a0481c055f246e9bdbdcff8a9d2e8ea6e4f17c1383d. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZNJY2101063.
Na Harmonia da Umbanda 3: Na Gira de Caboclos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb38dd2d45ca9ab18ea8bcd367cb5b60ebb3a3a35619ba69b1b98c05dac0e64f. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZNJY2101504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca0037fc6bbef2792e65c7fe1e1ca64bd8043623e9ff806c11c6626b02c9282c. 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/QZNJY2101505.
Eu Corri Terra / A Estrela Lá no Céu Brilhou / Ei Caçador
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe03742b584c12cb14768b18f3af7a9ebf5ca901155e5856006fbf1d0059e0021. 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/QZNJY2101507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02021576a10334556f900b347c5899c8d115d0ce2e588faa3b9b625916eb3838. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZNJY2101508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58704233fd2825fadad8455568802ae1097243359ddb06b9235a0eb37aaa2753. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZNJY2101509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71580e3083d6e596813d0141f0b764aeed80bbfb47e98c663c9b51ff254f83b2. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/QZNJY2101510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3926acef9359097316fc959e5cfe99c9897a2f063c79990d6ac35b2097bd1b7. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/QZNJY2101511.
Na Harmonia da Umbanda 4: Na Gira das Crianças
Crianças da Ibejada Vamos Todos Festejar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2d79fa8d21896eb1631a76daa4cc4fc8b5b533d52c67a0f1b7fa810bb92006c. 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/QZNJY2101703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6aab331a0e4c32822f37146e0f53330978671d45f478b965ebfd122c7dd5da7. Chain 2 (Bitcoin): anchored in block 958971 (2026-07-21T05:04:56Z), 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/QZNJY2101704.
Na Harmonia da Umbanda 5: Na Gira dos Ciganos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16379b157f3f3881e5f101915f220697452ffcffb569645770d628f02015c7bb. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:38:28Z), 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/QZNJY2101974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x784edc34e94a0fa20a8de2160a9200f9463cb636c5692d6ecd677a75ef062d2e. 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/QZNJY2101975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8af3a549aae790b51d488d0a8ddd4610a436a68df3a4e5424f9e5d2e5fb2f156. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZNJY2101976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19eb2068d8910eae6f283a4c49a76d5318e012912e2bf6fbb4f36d7338c3cdac. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZNJY2101977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8586c360cef4e8800785074569a8898fbda289ce43c8ca45fabb6e5be208d4a7. 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/QZNJY2101979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f1f23289e56b938bb82bbd54daff2c1de054f130949c78689b1d0efcdab31e2. 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/QZHZ62235704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e020a206c63deb764ca54c5720b967cb9fff1d8443a30605f13c726184c6e01. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZNJV2254871.
Na Harmonia da Umbanda 6: Na Gira dos Guardiões
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0ab52262376604f2f8674432e39893041026013d95c346dc3f3773268314c8d. 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/QZW9M2305052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecf4915fd0827bde22ca2ba19c10542253582e604eb0cf03ed081da0d691f6a2. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:21:15Z), 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/QZW9M2305054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ee86c4cf90b72f9f2dd796b0d6a2900d31453ec917be8bca81af65bcf8d56a. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZW9M2305069.