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 0x9fa34d094db757daf5f3425fba6e5f3ef428170885ca4ca66eceef96a1c56292. 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/586f0793-79ec-4754-9baa-b9fa627b929a.json and https://artists.proofprofile.net/proofs/artist/586f0793-79ec-4754-9baa-b9fa627b929a.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 0x7129c5c9055d353527430c1f1b61d444f3078b274e14b538ade27a8d0d10fcbe. 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/BRACT1607789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d25bdfcbbf22264da96f98373d61f02707601751f398a5ed21fcef7718f3d46. 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/QZ5AB1960856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb690806b50e0cb52190472e7774803e3e724ba7e3980443d3eb070ffc00caadd. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZ5AB1960865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d1249ce263ebfd31211de9361166b4bb807df44cd90dec512b7596a4e71e2c. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QZ5AB1959733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81fdf41c946becc10b44b84cb893ee562881e968cafedebae904e8692290b2c5. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZ5AB1959735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c55c46909157743e5f10a7b212489b580ea4ef3c63a1c143ac43081e97a26d. 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/QZ5AB1959741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x921f71c9093ff14154b35c1096a4431436fcf4e28d498df640ced7e5f4980c3c. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRUSA0901157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a58aebca589db69ceea69e1c7bfc30b4251199dad2bb4a61ce8f8a4f6d2e7ea. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BRUSA0500457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6082ef7f991d6d2f2b9fc53dfa822a2acdaa9c8e3f263f2545ef3f788e15f4. 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/BRUSA0500458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f862e45cb4e13043f2d2281eed59d5d300242d6120bdf0eba0e60d666f9d1a0. 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/BRUSA0500459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35c7e7001a6823e8df23cc3d6765eb0f718bbb68381f15b32bb8cf8165a3035. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/BRUSA0500460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8dc497e2dfcd2fd078ca329a41198b43af3e32c858c20f3ce5b0165e3ae4bad. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/BRUSA0500462.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d6ee272be363332655f94bb887ce5d58fa15c83714756489c4e47544527cfd7. 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/BRUSA0500467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1efaa51ae215d62673e4432b2328887a50427782711ac4b390deae9b0415a73. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/QZ5AB1955641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8102ab1b102769524551faf1033097b950beae0866729b0f4b9e179552c23df8. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/BRUSA0600717.
Os 16 Grandes Sucessos de Candieiro - Série +
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5255a8dd5eb584b4e0206e923cb3de50c0a28244c8145edcd08b932a20555c78. Chain 2 (Bitcoin): anchored in block 958647 (2026-07-19T02:36:14Z), 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/BRACT0300185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c2da3287ac2385d2051b065a1f2d5d1bce9dc44ab0ce2f5cf8e9cc19bae708. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/BRUSA7700340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b26c4abc87cfc24080399b77c7f4ee8ec95edde0df2c148d70326c981a92288. 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/BRUSA0800346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc091018e4ca88b172e30a053b2e2de78c9d9dd36616bc3606586b566ce5ab0. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/BRACT1601619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3efdba21e0c868a1e6939931641d54c4edee1cf3019ce4c56e399f16eec10c1b. 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/QZ5AB1954723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x388ee0206c8c8984166d4cd10b8d0a5e597b5a3f74cceb68f852e669fdb07ded. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZGLS1946600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee1c416d03ac95e7a52e00c1655f56805a005f86c68cc7dcafebbcc9e23939b8. 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/BR0KO2200008.
Bota Bebida pro Baileiro / Teu Amigo Cuidou / Menino Campeiro / Morena - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33de7d12d6afa9e064bb0c796ddbe5b626930f1826cc7cedc7dd4e5d1bb3a14e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZMZ92511033.
Bombonzinho / Amor de Rodeio / Álbum de Casamento - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6742e496f30046ed8389948a2702d190f6bbeb16c02a7f1a57f0c44aea47832a. 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/QZMZ92511034.
Eu Gosto Assim / To Bebendo Demais / Na Hora de Amar - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb93ab343654cfc5ecf0f5018417577a296b7d9e2a2626917d7df62f7a9e31b. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZMZ92511035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18744fe3b5f970ad3fb5dfdfae1b22ea0ed5fe18f25b1c4a767d6c559e6f8993. 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/QZMZ92435964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e12a1288162b19d01966d22c9ce60a197128063e0f6e74033baefc004b0437. 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/QZNJY2420494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57fc0e29505e7c8caed5668be5b5f28a08506316806b4243872dc4f2ed38c49c. 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/QZNJY2420495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0129346fc2377c1c11dad901ca509283fcd7131600f6bb00abff3a5289de5bc7. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/QZNJY2420496.
Depois da Lida / Diário de um Fronteiriço / Tava Tudo Bem / Todo Mundo Veio pro Rodeio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ab9f3cf2e446e6100c829c72697606f5d8d8505138f5f1d6b6416a1b6425c9. 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/QZNJZ2520537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4775f2cafb06331568f8ad8fa40d990e0095cb0ab58a8bf651d05590276e3ceb. 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/QZTPX2595788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1429a6addea0b2348547ac5def2c575992deb3aaff388f54e41a745811c73bc3. 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/BRACT0300759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1429a6addea0b2348547ac5def2c575992deb3aaff388f54e41a745811c73bc3. 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/BRACT0300759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa93c7f812a0e2949f59afeb10150eb5dd5fbc544b49cfe4ee6909ee6097f030. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:35:10Z), 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/BRACT0300760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x403a860cb7b314ae66ab7821cc794a9eb2925d7894215f06c5ad578f42561a40. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/BRACT0300756.