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 0x49fa6173a1cb5bbef1d2358b189508d50c71c8bde0896aeefbff733ae305d6f0. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aa190ef1-b05a-407b-9efc-29cbda580a33.json and https://artists.proofprofile.net/proofs/artist/aa190ef1-b05a-407b-9efc-29cbda580a33.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 0x47d46048844b77a9a7cb767b6ff6faf5a53672180d5a48450f0b8b1bd15bd0b2. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/ARW9E1800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9700d16889e3ae3e572563a587bf8612fdff5afda665d85bee3a48b8d153e760. 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/ARW9E1900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc4d2b91abb0f49caa54763de91f601be0748dc31f0aa28f1a636a22408b1e6. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/ARW9E1900002.
Canal (Benjamin Riderelli a.k.a Deep Mambo Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69cef08e4005292dcdf708f14a92428d27c3883661390772d6ef67a40dee52c4. 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/ARW9E2000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e61367d3289a89b8476c0c245d2d169381decd24b417089c8fb2430f3f54fc6. 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/ARW9E2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e5a291eda5f2939d7af160152143a10798fc5681167f06de0021382ba61ddf9. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/AR1JU2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8eee4e129bbd31118ca86eafec415b67482d8ea44d3fc16b7118ea61f3406db. 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/AR1JU2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f5571168758da3f1615a003714632a33bea246595a89b8f13d0409298eb0f6. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/AR1JU2300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4570168a9d9ecf432d2833bb03838b0bf8fde3e47d42ec709470eb3da3110bcd. 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/AR1JU2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb0d29fad1a008867408b1913fdaa1f38af7ec629d27af327497f4cdfdf692c8. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/AR1JU2300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6890c7cc6bb5b1ee79bef65595846f4dbfa78d30408bff92e839a064098e0209. 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/AR1JU2300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f9f7f2801770fb58a78eb2879b34da151ca6be1078ad6521eb1cf1c98e582a. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/AR1JU2300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea5c7d186f71ac761b99dcc8c20fecdd0dd78b44d438c77a1d39465f250fe571. 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/AR1JU2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70e7b3b173f66feba4f3e577f4355a34651809d167f230250e74a123cb9729f5. 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/AR1JU2300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aeaf2949b1eda80de142e3cd019a442384e27aa14c53b92db95021dc82e18bd. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/AR1JU2300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x800799536fbf57a7ee8de068b893a3e667abdb96b1dc9b214e285f911711fcea. 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/AR1JU2200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b15167faea44c51ee13f5f332f294902223f15874b88bd7bb1f1629b531b698. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/AR1JU2500203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1f734f9412e6afafb34e6873ec0160735582b4f6ad2b3507bee8bfd23e9beb2. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/AR1JU2500204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf88320bbb46c282746812e18fde248689150d869d412f99503855600dc09f9fb. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/AR1JU2500205.