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 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 0x1485cf44c493cf2587876f16c554fb5f7c88ecaf727f70324c88ce0acb9285f8. 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/643e3351-961b-4114-bb99-3d0d196c2c9b.json and https://artists.proofprofile.net/proofs/artist/643e3351-961b-4114-bb99-3d0d196c2c9b.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 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 0x8034abcd39e652eaae16d658c546daa728908b6c0e1eb1c35b815366c60bbab9. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QZHN52014594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x057bd30304604ed9b6f1ad8385a7dd81b7e0ad4d44b8a137d04031a1d81d8eb0. 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/QZHN52014595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9fba6837ec62eabed281611095072b3c828bdf765e990d4b46a776dfa1b453b. 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/QZHN52014596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bc97e8655c13195366a2808398f0137ed3c369f94811922081832db3dca3158. 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/QZHN52014597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf93ed4c2f5d05861cdb3202f35dce790629b0d9cf8307fea12f917b55fa76074. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/QZHN52014598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e9b6d2f9c1c0863c0a2ac5f3bbf1fa0e40600d41dbf15213f36bd7b631ab2ef. 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/QZHN52014599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4370862b4e26dc2b3be6cb5c9adedf862920434229473e718b4f66d853879c0. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/QZHN52014600.
Tribute to Chronical Deep - Atmospheric Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdd912fa5acdc5b18c89dcdda78dd6405f15d52580165b9f83fe9d575fe706f2. 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/QZHN52014601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9223ad7a8b0c09e450f3f6c3abbe645db523721cd05c98a85d263483877e0878. 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/QZHN52014602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacecf603d4603468ffda22adb77f329d5dd72b8ec3e610a802c8d4216674af50. 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/CA5KR2233852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe27b42d24a172dd27df97323a3e9bb0ddd509b875e137f78888e603e417759. 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/CA5KR2233853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x126af5fcedb3fe7b048ef2c91409d4ea1d5e69034e70ace7495f87f3809925fa. 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/CA5KR2233854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39475af7badc7790f204af4b417a7b9dbdbd3963e62dd48ff3bfb51b484b4870. 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/CA5KR2233855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc156c217d28a25fe323e1975e554fc71cbc9cb9dfe95cf6af55a432516b4f5a5. 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/CA5KR2233856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6155930dda221c79223a52ecfaf1683a9542e3c6c4dd1da14039ac365a5796c9. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/CA5KR2233857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fab983c62d1c033577cef8536d1244b7c9242905d524eab4190c41b954ee6a0. 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/CA5KR2233858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43ee754a08d762ea99eeda3dad683e25c45d830f1ac92408ea24471028011ebd. 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/GBKQU2421217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x021ace5d81385e05afd8994bd9870179fb7cb2751936507f8ad0340cd0db74e8. 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/DEY472482773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7303f351919c782766bad5496d95a8eff11e1923a3737ed33469d1cbd274bb8. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/DEY472482774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3cebcb8634633196ce946080a34e3792f3fa5ef9fde56536403b359c20518d6. 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/DEY472482775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9dc9e6c228531a07f2b97ca66a2e2a203d536a1391b882542d8bfff35117a2f. 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/DEY472482776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47fef59623364ff4b19f920533a41971183bbdbf36e0f6c7a664b450453b14f4. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/DEY472482777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0854372a47c5b25fa423436b734015316a6a984f2b36e146e12a433ba3958006. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/GBKQU2596338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f0aba07aad245cdb4ee1b08e758e04914bc244dde1aa6e3db9a98c751b845f. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/GBLV62503603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34459cc07f3dd71539c7fe217a8b74aba8d08297d45a507b555cb493eb8c23d5. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/GBKQU2297039.
Part of Me - Roctonic SA & DysFonik Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x266f62d5134aeb79706204201cbd16b7cff6c04085274ae85711fa4b566087ab. 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/GBKQU2209902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f1c818182873c93e0ef12de0dcb32e0ea67aeddcb27ff01ad522813fb541ac2. 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/QZWFR2328636.
Black Man (feat. Mogomotsi Chosen & Roctonic SA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x858f8dacacdd45ade4a89ce145578371c1479daa8325048cd04a8effca552ee7. 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/ZA41S2226202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6e5ce5a3f79893e3b62cc6711029ab945e53292950124a3862fa05391e9ff09. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/ZA41S2226204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0932adb791979d5fbff179f32a9a9b77b13e83cf8cba31fc6cac9aa7907c8c37. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/ZA41S2226207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e316bce8fe413d50a06eec68a48279ef5f2ba48f14e1878af350110696e2e4a. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/ZA41S2226212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf071f782c930312e9a3f333a60a301f8f9ca994b504bc564261db9b2b35be326. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/ZA41S2226215.
Stay With Me (feat. Mogomotsi Chosen, Roctonic SA & Jay Sax)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70781dabee69f2c842fd058bb3e3c5d5731152f21ac21e17c1edd9b0eec86f69. 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/ZA41S2226218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a40ab6c313e0e770c6bf18c4aeefead769f5480a7f4f1c117da7bbc3431c8e. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/ZA41S2226223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc77c82ded5137a76c5f668c939303243d3ce9c751856c7098341812ff4d9b35. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/ZA41S2226224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7948e4062c79f8bc913c1bec92423dfa9474ae1f0c09e2f20b6eb2d4ebefbb3. 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/ZA41S2226230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749d72da01549811bdeba600f0750a711dc2aafe9e39d461674452bb34a490e1. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/ZA41S2226243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e939a703fa12f589ad556dff8fcc6d71988f400ac6832ed822b88f3d97150ef. 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/ZA41S2226244.
Forget About Your Love (feat. Roctonic SA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x357dee620e920ea1bdfb55a8d0ff49bae01ba181e607c0a2849e21da51b0ac28. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/ZA41S2226245.