1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x530fa7d97d738d5da1788b27e05dbcc119d01b5e5d08d72061ffd152dff2f523. Chain 2 (Bitcoin): anchored in block 954046 (2026-06-17T04:53:03Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/416b0ccb-799c-426f-b28f-647036642d9a.json and https://artists.proofprofile.net/proofs/artist/416b0ccb-799c-426f-b28f-647036642d9a.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 → block OTSBitcoinBlock must exist at that height 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 0x1c371297a52391bc8a2dfdeed9c348d719c22c37ab466be2f414639c3af22ec5. 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/QZES62250981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1d98532c7b955816155dc924ff3a386f8f11bd0548c06cd980793f61db1b17c. 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/QZNJV2101322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55b2cee91c3083a8938980375fa9ccb9917762bdab135ac3caf48d87e05462a. 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/QZMZ92407435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6462abdd557f37403f10761930d3c59e92a1e0110abe88454e344f5f35e2181. 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/QZMZ92407440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe97db9f9bb2cc973b3f7681bc461c582bac8b64e05c076a5786103f75512e3ff. 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/USLZJ2394527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x160c1cde33a7fe0a483b7cca698d9215c5c0d305122d0e1b32699d72af4847b5. 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/QZHZ52201516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x231d9a7acbbc56d5df547520d73d602ad1bf4f8d105970ef56a9515f644bdc0e. 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/QZHZ52201517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26e2169359d6bb0ca53ad54cba3118a27d2146c68175ed5c70876ae2dee4c77b. 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/QZHZ52201528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb34ad951fdf89a5b9ba703403d0a2d957792b021637a7cbf629f36f46151e8f. 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/QZHZ52201518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x082be47d5edbcc8460af4c65492a74da623bfa0ffdcd1a9c069aa1f5556cd016. 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/QZHZ52201519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfbbfa0fd37cb97e299127f45976bd2a6e078f2eb5ec881b861d904d84e283b7. 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/QZHZ52201520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ac5d3c3566336473942099fdcee4a24ab2366ef623446b636707ddcbe965c20. 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/QZHZ52201521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fee602d4e57e3de5d50563a366c4012a72134cd1a639f2d45dc8f0b184e6cfb. 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/QZHZ52201522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d87b0654302d19c1d2a5341ccc73cc7b1d3450645c8fae9196e30a063fc872c. 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/QZHZ52201523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19534a772dbf4f78c9ffc3d277c3d5fddc30a11c2f39eb6787f3247cc80984e3. 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/QZHZ52201524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8628596c52e7bec6730f34bcd937c8996549a618cae80e923211abe7431e9a3e. 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/QZHZ52201525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60278b682e050929deb55001111c04161d3de4637bec5459b8687b846f553b86. 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/QZHZ52201526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdb7b464cbebddb1467833eeedc0359f0bf5677f26ec66b6064e1403ceaa3735. 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/QZHZ52201527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3772dfb2026be9ecca8e81699869a1f812a48ae617578ff207527f11f458c191. 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/QZNJY2234258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa318071db1835d3c99c76bd41fd9deac08fb9126b3621b0e13d18e038186eda4. 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/QZNJY2234259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd46ef3437982bafef97b27acf33470bb76e5ca3e6fc6fba59aa4aa9834ae7fdf. 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/QZNJY2234260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d5aa120a68ef623ab52bd87227ac2c244e0d70704f484116f70ff0d3447db1. 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/QZNJY2234261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x847ff969134df72ff40c7491993a160299443351bcfacdc12420666ec8656501. 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/QZNJY2234262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7163e627c7325d8495ea7251835c52ce07fe7899721d7377a169e5d4f41fa142. 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/QZNJY2234264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c05885bf04020bcd8cd1796a75f76050523bd70f8d467268859d2d70596b18. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QZNJY2234267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1ec7053e184a13f00b129b933febb7831567e4350055016c3e43fb65a07925. 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/QZNJY2234269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf827fbca49f655351b45ac664e18a94cefa89080e66058b8a47d21c853e4c5. 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/QZNJY2234270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf5008adbc8aea77f2ec3cd7a430fe18518739cba16712ad0874eb5802c4cf3. 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/QZNJY2234271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed22cf8444625b935713c0c0f752e18a3863bb897512bc3e24df079c5359a96d. 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/QZNJY2234273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x347d136d7d46c3c2c23b41525d56f488379337227124fa50caecec43cb9d9b9c. 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/QZNJY2234276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc42dc996a27a36691abd716ce9e773761647e3ec5345e77b08beeca91b347a0e. 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/QZNJY2234278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f058a9db658a708fe3e0d52d3f5a2f66e7e2a6eaecff1352e2ffb49df96bede. 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/QZNJY2234279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ebc861ea4c2c4e3d08677484435692b214bcbf2ebccbcde0dfc9c89d6bc5559. 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/QZNJY2234280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0fb4226b906103843ca4864da577a42087db4a25902219a689ba41f771ef198. 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/QZNJY2234282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7309a2878a3f5d812f3bc716eb0838bed311ec853f535126d8bdf71ca126fefd. 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/QZTVM2376117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c5edc69e54d212b7fa97ea9cff688fdbf90197fe03c93515853abb0d116c23. 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/QZTVM2376119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48bc0812c04a1d2aee945b152fe48e92b409249cecac21ed8eae131e1d9f4d2f. 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/QZTVM2376120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f56e3772fb6baaa444e89236cfc6c561eafed0777a5edc228033a873c2e7346. 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/QZW9L2292072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53defd7fe9ad88655a0e4b27b95cb87e58562531e0c0feed6419e69e5d8faaf3. 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/QZK6J2407148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd0fab33e4ed3427d31345e84bed18f175c35f5592a0141fdc7949d7df8a452. 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/QZK6J2407151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb137da4b83cc9c9f75a912f71f5f906a9cf330776f25334a163dd952bff5ac79. 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/QZHZ62280002.