thumb|Eugène Delacroix's Liberty Leading the People, 1830 thumb|Johann Carl Loth: Allegory of Victory The term victory (from ) originally applied to warfare, and denotes success achieved in personal
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 0xff455482fef3ea2b8e2c4f868723e5c72f4dfe46e6e5ee237b0fd1328a54c7ea. 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/6b9bd20e-7679-4624-a023-8d0ffd9168fb.json and https://artists.proofprofile.net/proofs/artist/6b9bd20e-7679-4624-a023-8d0ffd9168fb.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 0xbead19c071fb5af86bc340f54a09812b7affd55e7b7b3f62d95570b61b0da543. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/DEF088600350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc67b32dc738de659ce24569c16a1f717a31b7fb3f4b50956afe48deb8edf16de. 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/DEF088600360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4b9e3b54fc77d1bbb1fb338d8488d96e6dc15be9fb01e3013425aff8aacc914. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/DEF088600370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b0cab3a564add00d4a36597fd11eb3d282b348600d88d627775582658655f6. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/DEF088600380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b40b8afc79130bdc81cdf0cacc7f8e8526dbfdda6bdd088602e660209e1f8a. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/DEAZ40500174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf20702c4edd9f2226861780cdab629e729dd73fe9661d72e5f78964db82b2073. 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/DEAZ40500175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab4e5a278996444ef088a0fc568acddb7f3897db39ddf0a846f10a392cd4016. 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/DEAZ40500179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b8d59819f8d215ba65d4a8baf8b99192262d2bd8ec26b94230b0bb5ab297b0. 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/DEAZ40500181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d4c41b33731460ac20f8e38dbe08170484437d9cd2bcd14274b2cb5e5e3a418. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/DEAZ40500184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe545ee8f5ec65fb922157efed74679c84a3d257e59b7e8157dbc0f276abee368. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/DEAZ40500186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8845bc6d26476d5b84880e30f46d2c64d3c799874ba3dd9591fec29fc62bffe. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/DEA311100534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70af29612505aab4d9602cf065000a0b330140d6d8f3e3f55faf01dfbcec61a4. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/DEA311100535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad5e6a1402ecc175660063eae97d052bb31dea00f0d5a691df6dca6bf9ee58c. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/DEA311100546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcef3147c4f985f6409523b8c81ef786f3f6caa7d058154ab245620029fadbb3. 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/DEU602109618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0428a77c94d6344758db5c5e8afe8bd48f22da1351610c0cb6f7aa29fb58dd78. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/DEU602410975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee47ef5fcaecea564d758e939820957557b19a7d37faf4e0ca8a8c273ff6849. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/DEU602410974.