Calema are a music duo from São Tomé and Príncipe with origins in Portugal formed by the two brothers António Mendes Ferreira (born 5 April 1992) and Fradique Mendes Ferreira (born 19 March 1987). The
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 0x788bbde540885f9cd8d3eb402e5f66e8dd9af4519e6462c09668b2251349fed3. 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/f62b626b-bd92-48b5-8393-789bfb0cc064.json and https://artists.proofprofile.net/proofs/artist/f62b626b-bd92-48b5-8393-789bfb0cc064.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 0xc895c88d67c3449de4ae273fb67b0f67a3a9450e7f9b3f1f42cb4c667d9e5a91. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/FRX621002020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd60ff66d0704dad51611cdf7ba32f25759e87f9552917fbd92c9edc75510616e. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:00:42Z), 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/FRX621002040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec76a1d5b8c2bee69de11abeccc63c00af1ccc773e9a1f1c0d198fe5d4c0a16. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:29:38Z), 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/FRX621002090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79650d2fe1e1494e2c5bf67acfe4b609226cf0c34078e2a847cea829baf10aca. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/USHM81468243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb85a8c37a97519064596b985208f925e51b230575060821755b9af684db917. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:31:02Z), 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/USHM81468244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73bfe61cb8d6df4fce353eb17233017c86dde2a3267a4aa9812197f28651db56. 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/USHM81468245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x918e6113a9035d1e491dd523ffc99903b6a46c5b1b01fe6e168451a4022f1e5e. 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/USHM81468246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x848e44ccb3e9da96ce889d7e17ebdcad6e2a7fea1cde8e2245b1433cc4ef389f. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/USHM81468247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb65e6194cbc2293ae54bfd9a8b5362bc79b7bab3bebc48c658948855b9686083. 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/USHM81468249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b4e35f345ab84a8d0177824558ccf5e8a954b95f5715a19c266fb9f0e1cb7db. 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/USHM81468251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x931d4ff7850f9cc22bce9a4c694295cf9bf3d058d486ed6912482e4868bdda01. 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/USHM81468252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d71d8d7652a16e3dc6bc8d0ad6bacdae852364724a5580a5cdda54d5ee02469. 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/USCGH1677862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fcdb93b5b2da51f419c3b37637929425f6e84c55e30dbfffc45266979f9667c. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/PT0GP1700012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda952f2e063fc0f767d408f4612e15cffcae6d17e41ac5232240b9897ecf5b85. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/PT0GP1700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6104094af230415df68ddf8c4dbefe44d45b7e17fad674b6823df97d35a1b53b. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/FRX201830579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6104094af230415df68ddf8c4dbefe44d45b7e17fad674b6823df97d35a1b53b. 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/FRX201830579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b2bf592cc807db3ce99e9a0dd1f469b31eb4bf5e07081b50a55fc2644a7b8af. 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/PT0GP1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747f9df17f017ddb2b6e6264614fee9997d79d1882e1555598b147f971d66661. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/PT0GP1900003.
Tudo por Amor (feat. Kataleya) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x909dd47045a030f86c5181a3c01c336a96aca9a9c915f530d5da16925a2e1000. 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/PT0GP1900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7a5bbb0bb947a3c53a3870d3b6d3596a780a6154672e94a456f4011ef863f8b. 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/PT0GP1900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc059fd06dc7202ab9e39c230a7976bd72ffc0fa3b7a38562456dd7ff2d521ff7. 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/PT0GP1900006.
Preparado (feat. Rapaz 100 Juíz) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe97c83cd7874925792396e04155c3096fe556e9ebc278f2d066f595888a9ca48. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/PT0GP1900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a4ea496e5b053f5946b384f7578044b27ad41ca1dd9d4797da823241b59d39. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/PT0GP1900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e14708ee157b0e076c22c502c836e045045bac2d81b72ad092991bdb0b5eac. 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/PT0GP1900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc3775a9bc6ae1773adf547a552aeb538430d2c1bae4cc65007df4ba96c02ba. Chain 2 (Bitcoin): anchored in block 958587 (2026-07-18T17:06:26Z), 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/PT0GP1900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f0928497d86a0360dfbfecb01b3eee5c1cdf532f7c27f63a2414ea0e67bf11e. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:53:56Z), 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/PT0GP1900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82c481492e3908a1cd1b214b475332ae618ce43b70ed64a7bd7a82edd893729e. 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/PT0GP1900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x038d3e343c3a902cb28001aba242b858a0a2f06f3125c4c0ae0bb127a2b6adc2. 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/PT0GP1900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb123a2a740762fd4ecdcc3ab47173d49f11961518fef1333c976d4ba9e82ca7. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/PT0GP1900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b5d3700401e35df89a15035523ad662cfd069553c4fabcc85471e10c7ee67d6. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/PT0GP1900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ce3c0047ac462b8eaeff8f41c4dc04cd5ac3aa22979f2b49899b518cd84a0df. 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/PT0GP1900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55906ad92acc6fdf7b5464b7a43f05642141f3c323c4d437aba51f48117511d6. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/PT0GP1900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0292fd67ab8f25eb4cc732cea85a0778545060b2b27641f7bde325198f51de0. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:02:00Z), 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/PT0GP1900018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dea0763c0d293b842eb9b3dd23a08234b60759efb1d960fdf6bfd13981e7efe. 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/PT0GP1900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b2bf592cc807db3ce99e9a0dd1f469b31eb4bf5e07081b50a55fc2644a7b8af. 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/PT0GP1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe97c83cd7874925792396e04155c3096fe556e9ebc278f2d066f595888a9ca48. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/PT0GP1900007.
O Nosso Amor (Original Motion Picture Soundtrack)
O Nosso Amor - Original Motion Picture Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83d9303cef3b1344713a3c97dec1b72487c3b67c9671209eeb3449c1015432d7. 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/PT0GP2000072.
Te Amo (DJ Youcef Remix – Version Acoustique)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd939294bfb08b1fd97f7f29617d90f6c23562ad0faff60e0379cdccc1e3ea98. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:38:57Z), 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/PT0GP2000049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0431ea0bdb257723b0613d68085501c03914d1ef3ee5e192a9c5304bef693f1a. 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/FR10S1740042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd3025ecefc7fb8ce7924a6a3fc0199c73b7352f55ace576006f35063cfc939e. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/PT0GP2200100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe135e5cc591e3a8211a827037995091c3e1bf14c893f8473e513e44e4a3fb0f3. 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/PT0GP2000070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13298586dbb0d3f88c7e2eb13ac97a662b8d0f3ea0af89e88054fb81cc2c1ae4. Chain 2 (Bitcoin): anchored in block 959063 (2026-07-21T21:45:32Z), 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/PT0GP1700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e4e9e87a1db786396f70abc85fdd6166623c8ae79a1115e69b515337528fc9c. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/PT2DY2300240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99a840786563bc4969703924ad8319b0b82682ddb3a6ad2fb41d85e942201aec. 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/PTUM72300340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3632aa37cb1f8c0e9de855ee19518820ae99a845fb1f4faf1cf3c649306b3b5. 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/PTUM72300334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13b628d4628750fde87dfa007154c417acfaa762c04e71dab6df76db0d2ee280. 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/PTUM72300333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27e818014a7ef26837dea2354b631c11ee52b13be0b0ad76d8370a20f568ac48. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T02:50:40Z), 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/PTUM72400044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18bc84573652b565ff4912cf66cc09f252848664370134c32663ff07dbc35c9f. 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/PT0GP2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9a34a89a72f4c11517833af4cbaa04141813d9c565a6a7dca9a423e0ef6e016. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/PT2DY2400426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa82fa45b0c776d0932b5525f091b91043257d69eff5f8f869df764ae6de37060. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/PT2DY2400534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9263bb81a9473899e055cc7375750d012a20e775c73900c0f615e120628edb36. 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/PT2DY2400603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ba77b9f99d4f91e0d964fdb04b37aff2c4090ff4f9da74bc1399212949b57c. 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/PT2DY2400604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe16f2855e294186c7ededf2146a010a9d85cd7945d60fc8ad0e35a6e18ba41. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/PT2DY2400605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e149159fdfa4a9a510f6d7b0aed12fc8d510431e131f9c8d3c483d9fb0b8fc6. 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/PT2DY2300676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f38366a65749afd1a526b942b0b02ea5af7efed4bc0ad8b787d7330bb58b7bb. 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/PT2DY2400297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c21f97f5f75a45dd5c59ce788e6884db14bb4e6477d2be6682ad567ec7c8dc3. 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/PT2DY2400606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3b2255e0596171d6431548ee0aa823a996c39ccc12f4b2a892e888eeff088ed. 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/PT2DY2500113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73f1cf3fcc66fecb7b98ef3636688c6fe3385e3cbba9800404986ed0617ee38e. 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/PT2DY2500114.
Homenagem General João Seria - Live in MEO Arena
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe92dfcdb4ef7caed51e5a6d85bdf79ee523085f303f4c3aee7c957430b067576. 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/PT2DY2500115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf07b52950082969b7dd6f0665e6c88bb14ad4a1888a6991e983c525119db0d0b. 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/PT2DY2500117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe68e33d444ce2b96480019b066d8c43249220b3338817af1ac0e4fe0b5330bf5. 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/PT2DY2500118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3646badf57065eec80833505669e09a3f446b7261cf62f2a4cbb6d3de12d8c75. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:30:31Z), 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/PT2DY2500121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b1097e835a1769243e1683998226fa0cef5bd42b1cc62057918f13d6e8c8b15. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/PT2DY2500401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e425cd199d94caf510e344bbafa8255f9bb1115073107b1101b56d509ed949b. 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/FR59R1867648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb11b08cb9009989781cb2ebff35bce4624ed41c91065c15293a333b57a2d4c13. 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/QZNJY2134865.
Leva-Me a Viajar - Associação Sara Carreira Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x119be498ba97cb49fb7450f2d7145bbdee1de8569f4c4023727e3e3efa9904e3. 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/PT6HD2100036.
Leva-Me a Viajar (Associação Sara Carreira Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x908ab93d42211e5af407a2f8cbcdf00681355a5bf3706ed6097815ae9e5e3c10. 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/FR6F31641400.