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 0x42109340209321d6a1579cc551a409b6e744045c236c9fa17e399a2662ee6e31. 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/661583e1-05c0-4d17-9828-a4593aeb2ad8.json and https://artists.proofprofile.net/proofs/artist/661583e1-05c0-4d17-9828-a4593aeb2ad8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
La Gran Colección del 60 Aniversario CBS - Dueto América
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 0x44b81fcb962f8680988f978a377a1837255b5b0328cbf9ea73b21ed9664fe69a. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/MXF146300254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3208acdf3894e45a39640d101e11898dd83ecd1feffaedd73620639da2a85d1. 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/MXF145300065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96cb527b792efe9cdd64d61e755632a66d7daa258c4f8b24d063c5c474a7117c. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:19:38Z), 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/MXF146200046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62f9442568b57d93c8482e5adff3c8e453fc020432ed9d3a18d165f9696a1a03. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:13:47Z), 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/MXF146300257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d06d56c319ba57629d969446119aa4ae237c21c08297ebe7ddf6aa3f75187b. 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/MXF146600221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48d01ae5cd092cc6701f32948ffd658de792780dcf3681c4012f431f20fbbcfc. 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/MXF147200028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1386b608510ce0c021b28e6d5130d7ddde0e11a84b59f6878380ec33bfdaf98. 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/MXF147600223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734474c6470aae5671b81cd844709c0e0a9e81b2fd3265c7ebedf0c687934b2b. 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/MXF018000352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x152a1266095ed4ddd29f02eb180629c28062f44da406d48969bd62877c763f87. 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/MXF147900059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa635fc9c90345136c30bb23d9a7684d03b78e6736a6c7815d4cef31cf71070. Chain 2 (Bitcoin): anchored in block 958920 (2026-07-20T21:00:28Z), 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/MXF018400881.
Pelea de Gallos (La Feria de San Marcos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5d9ff83ce8490a40785f6688607cb9317b389a69fe71ac65fa96efda7265eaf. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:06:23Z), 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/MXF146300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd24c32625d3cb1f006168422c0203976582408c8d7c4ff38f0827b3b733bb2af. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/MXF148400215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fef28bfa428039155bad716938d8fc9c6bee55648da6b19332d803a6bfb8f84. 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/MXF146300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29eb683f703f6695a7c8daa3a71ddbb4a335387aa098244bf0078fb45fbce341. 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/MXF146300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96c9a02ca559df2346a252b03281b9ab726ee1a1e0633a743b5bb9ee4b6b08eb. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/MXF146300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a17775d7f2ae3ad971ffc78021b887802b7de1417d202438f7638fdca2681f6. 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/MXF140000220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64edf9c6f396eafe130f345190da976afd3c4b2a255e5b6a4ddb5dbce7fbd495. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/MXF146600216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1d52857916a3d78fc29fe308038dcfb4b4d9a1bb07053d79f58b484f4fb05f5. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/MXF016600461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed6013222fc7b7bc8bfe44494e43e40c176fdda5f70159d1cb9c756603465d4c. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:24:39Z), 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/MXF146300186.
Ya Deja de Andar en L' Agua - (Ranchera)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1ca22e7a912c8e63135b0168aa966167012de0b1b7b81230af576e1ab1b10e5. 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/MXF016400453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9865b482e7f2e08f77443ec19f7d0e0edd8ce85a147b4bc38f02d50a4f946eee. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/MXF016300289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81b1d8c554887a96ad3e59d4263a95096831a5456e5ec847455fe4faa6b5970d. 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/MXF016400455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x358a28faabbc3fcb984534cad44d5865d50eb11e29a9d9afb917534e75bc2070. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T15:01:32Z), 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/MXF016400456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b53e0f3231ff15ec66dd1e713025a3af6f8d3bacbe37a02946f94baf793837. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/MXF016400458.
Los Hermanos Bedoya - Ya lo Sabes Corazón
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x964ad847e6d5a0659223e0295b11215b25ceee6b1242f15403a82bc4a2017a4c. 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/MXF017100262.
Más Rancheras y Corridos del Dueto América
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e5f64dc3dc2858efce41c4d7f0facf18dbbcc099cd1b4a15eed03e8876c3c8b. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/MXF016700623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd1fbf304d825cecfda4fbcc478200b5edc8e9e8e939a3eaa0a4a8ae353489b5. 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/MXF146700207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e30cb18be7e1fa8d57adee7549ba13398206b739036f5da4daccc29bfee2b86. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/MXF016600539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2247433950fd8d22deac3865ad4500e3b1b9453300b9e474c19bfa168f9aa297. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:49:42Z), 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/MXF016600540.
El Incomparable Dueto América Con Más Exitos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3208acdf3894e45a39640d101e11898dd83ecd1feffaedd73620639da2a85d1. 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/MXF145300065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24954d236001802cbed6cfedbbcb26279cc2f6b7a75828aefe21779fa0cad6e5. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/MXF145300095.
El Caso de los Diez (with Mariachi) - (Corrido )
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe63940726901dcd1709123bf3e1494d51304f2bcde1adaa74ef53382380f499e. 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/MXF018201037.
Serie de Colección 15 Auténticos Éxitos Dueto América
Super Éxitos de Juan Gabriel Con el Dueto América
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a42c6501208b79b8c2f9386c9021a0950793efdd2eecc17deb8336a16b6379. 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/MXF017700444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd76cebb8c45a0abbcb511074b5c5d9f88b600b9fca81ad88205ded061b77b5be. 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/MXF017700449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5592eed996e935eab737871441b2d2f1ac7bbc018f423f50c699534a2034db6b. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZFZ32471172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf3b5c8aaeff31aa1d3f5c9d0a24a5408f59be9a1c90b07dcd6b0ba1f911606. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:17:40Z), 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/FR96X2005433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf3b5c8aaeff31aa1d3f5c9d0a24a5408f59be9a1c90b07dcd6b0ba1f911606. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/FR96X2005433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf4cca917ababbe8ee8e487370f169beb2d15216fc8054e6ba2982fce8ca406. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:09:20Z), 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/QZXLZ2505148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f444e965a2c1df9fdd681fed67fb0093ce1fb199190514606d43235f09f23d5. 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/QZXLZ2508590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x459b755c23604910abb8ec385433633cde7772dde5c04d0a7e5a294abd50f5d4. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:34:49Z), 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/QZXLZ2510379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a9fbc168b32058abb30261b66e4c60bd345de77272e4becb64b58ec4459017. 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/QZXLZ2510382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58e2eb17f5ae7188641bd3ef67331bd5acac55305f35a5af52fa39e3dc013cbe. 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/QZXLZ2510384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bf16e8ac9d88cb86cddc184fc0420ee3e54a85c1414a8fcbf7e181ea8a79b32. 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/QM6MZ1705530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce1fd0425f898a8ae5a94b15d5d3142c4cc6b7d0f69e14495e475b60f837a7e8. 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/ES71G2216088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79bf2e0e79bf26a14300d1f791f64b84169dc162df9c7ef77f6ddde4bc3c187b. 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/ES71G2218363.
Tesoros de Colección - Los Mejores Duetos Rancheros de la Historia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x797e409751b0a90eb3aa924d607889447f67cb1b84623b22a905c5228330c30a. 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/MXF146100072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58f4485d7b445f5755538186181feda65256079bbbe2b9778c95da84fe7b9799. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/MXF146100074.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch