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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916ab0433a15341da63354a54e855d1487be53921fd36ba5d4198c40871fa936. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6a4fbd26-73e1-4104-a0e5-0e35dbe740ba.json and https://artists.proofprofile.net/proofs/artist/6a4fbd26-73e1-4104-a0e5-0e35dbe740ba.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
MARVEL Rivals: Galactic Tunes (Original Video Game Soundtrack)
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc07048836f218ff06b71622860af05310b137c951443032e4709f4c52b6dcabe. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USHR12449078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81d2cf4385e4551eda8e64802e5b693e2be5aeac6ed3412dbf42e09334f0eed2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USHR12449079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f3ef71353161601865068bebbdbd5ed738beb0da14b3c452df2248b40683cdd. 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/USHR12449080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf53660966067f17c9a81a8646ccb8fb142885d07e449f44ab6a0020db6d961b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USHR12449081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ade3f2e3082a8c23b8d23be4b1cd1008661b145757aa4705894c07e6f9ce8fa. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USHR12449082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa34afb53bee973efaaccdcc4997026bef174e0fc14ac0d9a30da7446ba4689b3. 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/USHR12449083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9afd077a034d0240eaf634a055532156a08aaa20f85df7c1e4dc083186dcc91d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USHR12449084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef3d325350046c864325be442d979f1a9c99b15466c0af13e57e9154557fdb51. 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/USHR12449086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec44be78a4ff27b111193feffd56a67d5d1b31057243dc04f0a52c682d18a986. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USHR12449087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d4cf2f1654d040e09839878869fc3b6fb9ad755ea69d4e0cf0037ddce9ed3f0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USHR12449088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2a5a9eb2022c2e8b1520f20b7a2a8623d965a4deb65ce8fc5488986a284003. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USHR12449089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddc410176ab6f65439263e48ed75efcf9b600efbdbed12e064de0568cd66e9aa. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USHR12449090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabb5d7c89ffd9342aed9c138c33e400bb28baf626368992fe1d5e91a4666a61f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USHR12449091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f6e358277714916138a94492f4fc483704ed9737ef8a00f1c64a6639e26880. 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/USHR12449705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec49d1503e937c75849a89809946c083424a3fd381f6e867a0529481e412cc0. 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/USHR12449706.