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 0xa772a39345a744177cd808e9d413fbc7e3654657596970cdcd736019607ffc4f. 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/b784a6dc-559a-4143-8788-9b4f2cbc5096.json and https://artists.proofprofile.net/proofs/artist/b784a6dc-559a-4143-8788-9b4f2cbc5096.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 0xa45905a5bb56ea710afed36c44e8d0c3bf19180faa33518db6cd5736a47baa10. 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/ITI020000156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1fc24efc03c7958a9433df286295abfc0d9309e2028fd31b103111c997dca54. 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/ITI029800428.
Sombre Guitar - 2Gether Project Trumpet Take
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51cd0e2e1eef5c977a91b34032661d10079c713fceefa93e601b42fc67bf7b15. 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/ITI020100148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c9fc099265e4ed4136e7af8b5ea54c3e7e0aa54ebf70830ee08c8c491066952. 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/ITI020300105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c3674e9389d464764fc92da7ef8a3c4e9c2f05f5807def853b740da0e3778f0. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/ITI020300111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bec7c8d236cf5313ce5633b0380de95f4c5286ee559e1412d198e26ae64d0ef. 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/ITI021000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e550674079d39eb9900714f97482c94e67e2e6f237a0fac2c384ce4640a8b35. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/ITI020900484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5441975a111ca423e4547a1a697fd76eb1609ff52bea13051bca9fd8d74fef6. 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/ITI021200110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be64aa3d8d8158520b85eb9624f0fabd4c0213a082f45db61c6cdeb27689152. 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/ITI021300166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x095ebc22e9c37abed5b0bab606ee896985246a47e7924ee56234d9ecd88dd17b. 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/ITI021500382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb63ce8581a2832c9a038e7dfbe846e8883d92d35d095a49caecb308fd86981. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T19:54:01Z), 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/ITI021500384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fd572fb5b8b72dc3634167822d795ab4590bc201157d9d6089faa68c4cd15fe. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:21:55Z), 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/ITI021500385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0950cd33463f5e6c51992cc1eaf98eb72197a9e6ae2df32d03d45c25a0489aeb. 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/ITI021500386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc23b102273d24d498c7510001b46a565df71000c8776da1ca32dc57504b68e33. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:21:17Z), 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/ITI021500387.
Keep Playing with Me Baby - Digital Bonus Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d03722425344842fca31111fd1b73d2f82a15391d7bfabde2b0e195c6b13d5. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-22T02:04:00Z), 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/ITI021500388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb6cabd90f471e3ca59abbb4b3969c44301b95f300123d69170d4f62f242f57. 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/ITI021500391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9aaac6c1752bc23d46c989cb88092a643be68fc45e4bb1f32c34e4fd9366659. 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/ITI021700053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe66eda75e2a5aeebd75404832ade4620f004dac3917e3633ce335e6bad3fd55a. 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/ITI021700059.
LTJ Xperience Presents All These Dirty Grooves (Irma 30th Anniversary Celebration)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d2fbe555cbb644fab9c3eb68f6c8138fde95c69b2336535db5c56dcaa716c0c. 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/ITI021800631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x739c8a497480f93e093ed8b8126bfd1c7934899e63c952fb45145f500bf5e111. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ITI021800637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1e9684b98559ea90e5a723db3274fcbdb6aef49ec4b3481767fc110277f0fa4. 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/ITI021800638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f60718b902bb897ae5f030ce37b24e62a596976949783b8fea05e0a426b159b. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/ITI021800632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e175c3ef06caf9c96361c2d72b27fd82244d4039b174a697bf3fa07785d83f0. 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/ITI021800636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d90fdf87a2cfa533584cd3ad248cdfa198fe4c6120f38dfb68ae23985bfd5e3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITI021800635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x889aef33cd5046eb5e11b83d92738d7f2da989b63a80cf71f43ff7c552b94aa2. 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/ITI021800640.
LTJ Xperience Presents Hidden and Forgotten Remixes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0f49209ce8b9d8050c94c239ee24ec8b1c47680894381654835fa4b5e0afa35. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITI021900133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73384ad9e3f5bc22237b5b5a1108f0989617b51817f23f6537e1b4b749ba5ebf. 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/ITI021900134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3574e642e1e9d029e24c2c1b713b21fa57dfd65611d18c623620acb1b29a889. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/ITI021900137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607babf8be18de957e3ff3dc05d89acea2298a67f3f78f665b4285a5dc051c01. 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/ITI022000354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4553561e306b06da8c789a9e6cfc904f38bea9f740360bcf2b8e6ca42cf1a2a7. 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/ITI022100193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe206f834f2dbbb90acfdcac5b64af0dabc91839b0fa919bda2543813872fc893. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITI022100522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc089a14a6c787667a170230acb918900e1c101b14b643d2b3c8bc27add46821a. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/ITI022100523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37c6508a618d408fa6a40ce31d26f58482b3e2698cf8fb399ca94980d54441c4. 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/ITI022200409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ee9a6dec4efabbace0c68f44ccf81e0736eec7180bbb1b0815dbc18c1af8b38. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T09:45:02Z), 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/ITI022300179.
Don't Let The System Get You Down - Regrooved Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607d6d46a8c61be320e9fbf914040a76d4f3ac00746185493adec68a06ce85a4. 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/ITI022400000.
Best Life (Frank Situation & BRS remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc27dbe382b6473cb47beedb3fcb278d0f69dadb6d054165e7c06f092d0c2881a. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:26:49Z), 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/ITI022400482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf41cb62a40f2a59111743ab512e3e062e4b213893f7d4d2126be827780f5f45. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/ITI022100524.
Il caffè italiano : Trieste (Italian Lounge Espresso Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca48faace0bfbbe818d52acf338b5387b4c33656e2a476d5713189527ef43ebb. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/ITI020300109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51cd0e2e1eef5c977a91b34032661d10079c713fceefa93e601b42fc67bf7b15. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/ITI020100148.
L'aperitivo italiano parfum (29 Classics Tunes from the past reviseted for your ultimate lounge experience)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca48faace0bfbbe818d52acf338b5387b4c33656e2a476d5713189527ef43ebb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITI020300109.
Walking Slimming (Dimagrire camminando con la musica lounge chillout)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcacbeac06dc8935dad134b9e71ad3e950b0d2277ef042579f9041cc8455c71d2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ITI021500381.