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 0x37a0dcd74f843d4a41817b912aee6156543155847dfe9b404860d423f7db6f5b. 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/94be1a96-e0df-4dca-9837-261b25dcf69b.json and https://artists.proofprofile.net/proofs/artist/94be1a96-e0df-4dca-9837-261b25dcf69b.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 0xbd133f901ac461e7f1faec35be01131c11bd6900b43db2ff7ea975c7a0ae25e6. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FR96X1863683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c0143c7c7fe1460fdd36886ced6dd1ca5c4872265a0aa262372cca48dbf7e28. 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/FR2X41466678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd654daaef595db077c4b3a4c99ee1dde10a3afdeb3abe1db84ef1605772ab75. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/FR2X41466686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac2601593122085f04a600b26bcb8e0e46fb5572a8b739de763b9a9047d79080. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/FR96X1863695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x620c022a9411f069ce235276910ccf122155a7bd99dff6e1ecf3d4fd73a07635. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/FR96X1863699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c55cdb125e1aa9a1305d569b8f238f03a3be431830211108437bae88a8e4cd0. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/FR96X1863668.
Gjerdani I Dashurisë (feat. Nexhat Osmani)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x975ce4ebee44c27735f54ecf614c90baeac6cdd5626ee09a75ad7ee995a80653. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/FR10S1686220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d99bc2f11a31b680e5383bb3c6f1f5a78ce3c17a5388fbe79a8bc3ab1a6738. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/FR10S1686216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252aec10f321266eafe0a145ce53587a1ec5ad4d7dfbf12b866a8d0e9ea6a120. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/FR10S1686235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14c4b28a25642a633608df36ab07503464897439bd0b004bb2e3e7aedcce07d4. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FR10S1686236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff339ed424f9d2b04108f466aefac174f536f8db0f461ebbb6fe2686cd1b6882. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/FR10S1686237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x609ab909b34d4550cd0be0653252a3752b8944985313e5a844be1aef7d466d4e. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZHN62006323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf7d6629d08d20f91f6838bde5259253d7fee8e8f125c03d6c9690991d20db1f. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/QZHN31947428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc42bd0495a8ac683fc7d4f3b0edc20fd69b4cdf0b8124a95bc902d08b85f2b4f. 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/QZFZ31945008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17c5b6c373c244428f9b87cd5f4485813b782d6eaaa845ef27c2c8c15e099896. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZFZ71989575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29c60783029ded03d1e30a33a347950535ba58b8e8133581767555d66a7e6dce. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/QZHNB1942114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eeaca4d6eca63306f66ec4bc795da30ea347b8fcccbf7312c28ffd679a4b6d0. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FR59R2003033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b39c382b0dde4f0e834740770078047ae96ec1cd9b79056856daf022413c90. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZHN52075337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f108faf87991f879eafd880d962300c331c211bc0285454213f2670711b354. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/FRX762013452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1696ac5f3de9f0c0bba52ace27a0433101c9972194ccbe4119f520b41bfd6f. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/GBRKQ2038815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc082ee4e06918b769408e7aea635b9f913ebf18c69c91cd43eb22a5c38f7848c. 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/FRX872143341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe158ca6718bfb2597df3dc90160cd5b2cc06197c9c43d5c3a6599855e1a184b1. Chain 2 (Bitcoin): anchored in block 957573 (2026-07-11T13:43:13Z), 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/FRX872143344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fce20466fb8e380991076def628adc0616b7c4b8a51fe4d5a04973097c95d94. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FR10S2351623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x197b6cb5f4eaa98805b5f5a7010ca28049aee47f1a4696ee0506dfce333b4279. 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/DGA0M2322196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe81bbc6dea955dc1599301248057a035672ca580e9da68686417fe917ea3c6ac. 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/DGA0P2355422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd69095830f9f5c52fa41cb3b34182c5f241a67c14c84f2c62ffed53756d8a30. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/FRX282509053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b572dd813c1441aa4f94b59a41a45c957a11e80b25a25258d053cfd6536c9d. 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/QZJRC2565372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d6758394139bd352ad327ab1cf7209d52d9fd5be4ff9412080db8e00646601c. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/QZHZD2593621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47f9ed62db4037f37e2a829dfe7ceed64b53a8f8169580c367aebd875e9d288e. 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/QZMHK2551799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad799245f4d5ff4d281cbf7476495978c56dc92daa38a640117e239936991177. 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/ALA092100068.