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 0x75ae71bae8b484ad049e2fc3a239211205837924ee63204725dc99a5ddff1b7a. 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/073c40b9-cda4-4459-ae1b-c7e9d1ea7790.json and https://artists.proofprofile.net/proofs/artist/073c40b9-cda4-4459-ae1b-c7e9d1ea7790.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 0x1a5d7dfe484e67fc1279428e72a630c91aca4c186271fdeb83b3c1e48d8e2f8f. 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/USNRS2343009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3340aec414e37a5dbe632153e8fa9552d4bc852dd2d9638d9c9177096c3e000. 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/ITFGO2200060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53402c5659230825df4bdf91e9bc301804ec2e0bf84178f45ab9fc06ce12365c. 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/ITFGO2300051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e4cb6287f6efd5206042e239138755074fbf69272a415ec4f2491bad49ca8d1. 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/ITFGO2300052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd98f960e4b24efef89217f2d68abc2b90e56ce9d401068c9589bf124ac31efa. 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/ITFGO2300065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45011966611485ddec70c2c705770d736658c0ebf03f5ce4750bb53a52350119. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/ITFGO2300053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749a208c442e87fb9821a9929c7d70c2049b7602f7d7675b523cf0fbaa560875. 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/QM6P42424561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8899620110a93bb66a2fbc07ac23fffcc23ab2fe5281b36009e8dd8506e79f4. 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/UKBJZ2300031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749a208c442e87fb9821a9929c7d70c2049b7602f7d7675b523cf0fbaa560875. 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/QM6P42424561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f8a7a44228200939964d02eccb7ac5a7c7773df7364e851152e68a79c639ea7. 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/US83Z2413074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2a64fa81509924656f0559582dd3f9bb0a58c5fe71f2c31f1f3a654172f9c9d. 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/DEY472477989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x379744b224c20377ba9085eea68967db834906ac6724bbd797234b0da2c75da7. 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/GBKQU2488506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71ad61fa3726d6f76cde6eb4669c9cb01c71ef0c1411dc2f6ef62e12acf3c419. 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/QM6P42468801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f6991a557ee58892d08ed6ef290c1dd5f2197e1234a1bb1408a907ac9621f0. 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/GBHEZ2403523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a70004a4b54f9ec8c3cd9cca495ad88976c2cf1d2d82e20e1b5036e63d2022a. 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/GBKQU2402941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda1a2c219a8273c2be4a812ffb62ac5c5fbb1436fc0cf20c6c2c15e3269768c. 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/UKBJZ2300032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42d8f36188adbc7de8cbf896de0da82e395efa2013ce07be0d62063e9e6da2be. 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/UKLVE2301410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72c9c4923e6088b1c626d1735e40734e5d2b02df5daaaf47fbad2e49cbfe94d1. 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/GB7GV2290055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x840a15b8320f81bcca3627f159a4533587b5a8ba837d8b455f4774c1137d30ac. 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/GB7GV2290051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccc50495542100816a1ac8cb5981e1e75259b7e150e398bb37f40fed045e278f. 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/DEU672200748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7fa624c980267366b547dee3c89211bfe163ce4059f4b32f278bbb82f1ff643. 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/ITFGO2200026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b72cd945f6e34fabdd892ddfd1deae9de8ab279a92f8897bfe87791c168ba43. 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/ITFGO2200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ce4e44974686c195f173bd53138eacabed372e9faf50f0a1a077acde8cebc5. 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/ITFGO2100120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03fcf7d9bca554b47dc8fbacdc98a579c2bfc5ca17354072684f4c0481e6c117. 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/ITLCJ2100533.
Umhle (Lebzin & Dr Feel AfroSoul Remix) - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e2afabc5659b73085ba56406a3f68d57871f5ef35eaec18dfabddb964ea847. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ZABKR2300020.