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 0x215ff5b8b9eeaa8876edb95de58c8763e1430430946e2a6899e0a925fef48965. 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/d48d9235-cada-48e4-b701-bd45f8620dde.json and https://artists.proofprofile.net/proofs/artist/d48d9235-cada-48e4-b701-bd45f8620dde.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 0x130e10eb339b26f6d26394c2bf2021574a0ac7520490abab7e56bf82fc7544a0. 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/ZA56E2200512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeceb047259c4169687b0614186e61e2f837393c8332fbe44b6ac3651881358c. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:28:39Z), 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/ZA56E2200514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0519351182861d536bc6719763b97087407f365db80429509ce9639c40b95f6d. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/ZA56E2200517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed21ce285b787d25c68fc17b9f78f069ad928cc82105babdf769a84397a5180. 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/ZA56E2200518.
Ngisenalo U'thando (feat. Marsey, Mhawkeys & Nhlanhla The Guitarist)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2638c80c5e6ad21cc076957155a1314faea07ca859c92723323556d5589aebd7. 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/ZA56E2301980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a3807bfa6d6b57ae94e6dc619bf271ca15a09f82cffce41a4f59acfcda13b2c. 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/ZA56E2301981.
Music In Me (feat. Basetsana, King Deetoy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20d0d5e7698d4a5c8ec14b0328cf2a7932b6b8e8f69a2198cab4fb94fc5678a1. 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/ZA56E2301982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb97ae513ad757158429c53eaa5cc26df8f9f4263b49e3f8842d521e959914313. 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/ZA56E2301983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9623711b5d212bbfab4123d62fbf5b65bafd452126a04c7f4a3b183585d7a7c. 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/ZA56E2301990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e7b2990132946c06bf95906c1623e2fd928899229793ceed7a5f5dc9274d40. 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/ZA56E2301992.
Nomayini (feat. Pcee, Justin99, Vigro Deep)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1bcc7eb09d0afc1976336f82df3a441ce8a985a837d00e1c33009e106a0961. 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/ZA56E2306382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x457282544c05fec3b742cccf270b5d2f004808f696677d977645bd8e68101330. 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/ZA56E2306378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0405ba86c6b7ef35db0e497aa14d6c28db40306acaef517345b5b91979422aca. 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/ZA56E2306379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e1dcb9083264db9b29e0effd32cd2fdc4f941ac4f0d3c05328c0b8c17f4f1c. 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/ZA56E2306380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc260fb5ba5cc01918cc77fe956740b5377ea1bccd0d293ed6bc681dbb9375d4. 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/ZA56E2306381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1bcc7eb09d0afc1976336f82df3a441ce8a985a837d00e1c33009e106a0961. 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/ZA56E2306382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4611cf6316481c38c6cedcff01ec74bb0be04284dbe632c6fb1c45e19352bf3e. 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/ZA56E2306383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e391142fc65cd858b34788c457177f487a5e24507e5511be907b65842710cc4. 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/ZA56E2306384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd105cf33dfb69b7c991fad61575b85944af46524c6150fc9535a71056fbfab. 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/ZA56E2306385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf69af25ed2a6ebf81c021aa75247bad7ab536050d12e538f43c77bf19ff40929. 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/ZA56E2420612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4cd0de35a8482030a5109ec7199f838a69755cab00409f5b8ef40654d5de4f5. 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/ZA56E2420613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f29e29a32426451fe8996dbdb230f54cc619a05faa267d8dda967b4dca2840. 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/ZA56E2527118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7918d121507adba31a7476b72a0446f8b3b800c7406506efb4a03d30613308f9. 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/ZA56E2527112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x949dc6c2137169fbb28d62de425e70925614f85b9201f3f8986489e2c8a1ca9e. 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/ZA56E2527113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3923731662fca354baca6edbee7626d613db300f2dd2e5294e851577f4f3eb30. 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/ZA56E2527114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e8e01f144fc20bac593f2b7611fcebdb685454661e7aad371ba2c05137d36d. 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/ZA56E2527115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74bde3e3fde64ae396a414195729d79a8810e00974b4554c1e3438f53c79470d. 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/ZA56E2527116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b54f2d0974f77542975669d49e1c6f4f0e050731d4d221449113a1d4cdbc875. 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/ZA56E2527117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f29e29a32426451fe8996dbdb230f54cc619a05faa267d8dda967b4dca2840. 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/ZA56E2527118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4cd0de35a8482030a5109ec7199f838a69755cab00409f5b8ef40654d5de4f5. 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/ZA56E2420613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08343718aa411bae02fdaa4b9fa62694ce456d2d87f581a545c33e5a113e0708. 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/ZA56E2527119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9890c78799757b554cb95962207bee141ef89ca588a0a0cec82b56986897dbf1. 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/ZA56E2527120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbea782db0ede8a3d19e77893ce72445ef82fd81ef3ba82fdab6cc94d2df2955. 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/ZA56E2527121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8110ec1f0d9a80998aa25c1c46026b757f451212e6f1b3e7e9e90fcc429f9c7. 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/ZAA012300328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14f2f1e6e7cf53d385321805e97ed0bd0a4ebd4c562cd993c34681d73454d76d. 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/ZA2RU2200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76eaa8c87107294eaae815417cb216e0314c158af83c460e4299e20874ac6de5. 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/GBQGW2200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd524475a3cddca9109b7c0c106f67c38ed6280d82b43a2dac8937d6f8ace65c. 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/GBQGW2200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd6f2041077373a9f33ceb23962e5c47f3e9dee3f97f17ce38c26713fa004ad4. 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/ZAA012400183.
Sengibonile (feat. Kabza De Small, Mawhoo & Freddy K)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dfa3df090cb344d4e0f9bdbb75015cdfbead32fd40f1a10f510512b3e02f97f. 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/ZB1OS2200127.
iSgubhu Sa Masupa 2 (feat. DBN Gogo & Freddy K)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a027d76f00eb740ee28224b83fe1e6346123eb413aaefd53ce73f94a46828dd. 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/ZB1OS2200132.
Lento eSiyizele (feat. DJ Maphorisa, Freddy K & Khalil Harrison)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb33ed39f1bf5b7d215046853014d133779d006a83dfa978cba60b4f9d9b5d77b. 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/ZB1OS2200134.