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 0x411b82a79b3b99a8ee167706d2a06ac8c43ecc2276f207b7adc6d7938b1005d4. 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/f54620ba-c003-4c28-82fd-c0561e153da2.json and https://artists.proofprofile.net/proofs/artist/f54620ba-c003-4c28-82fd-c0561e153da2.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 0x781dbcc530a5a719e387f28953064712648df5bbd0222c3db55e2441a8bf7ffa. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USHM81463452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a5e13f607fd3597398b5bc1967568209b10c53a0c8eb738f9986401e4362fc8. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:57:22Z), 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/USHM81463453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x258fd909927637f36e88e83a8662cf175f96f281858de22a74fd282fa045c02d. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/USHM81463454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c5d933497fe8c9f402d874616cd7f123daa19683fba6a993a82ed965989ee83. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USHM81463456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb52674c55501d12a0ed5d20263a5b2b5c7f75b66098fef0dd89871befd0c204d. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/USHM81463458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0350a666bb66d0e5c5c9b661de388ce379eeb30a50bad297216944b3ba5d2846. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:48:34Z), 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/USHM81463459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8f2218a36091bed0756fc768adf00ba03ed16efc1879b516131eb4063e7d5c. 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/USHM81463460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf32a71186f3fd35f4bc6c8103d06ee42accf56b55625fa464d3e129e827068d9. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/USHM81463462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16b88a52d03f32c57c4fd2aaa7d1388d322d7b91791e2c7049e7a432b210ef4a. 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/IL6191801026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f69709a8edbb3d83c7251ae25ff1e5da089513c05a784d5b3acbccc02be35a. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/IL6192400330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb2beb1035a2ae021316b0744ea93e43ecaafabaf00dddc971fa47a568a1cd8. 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/IL6192400331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9c3c0ce48d938f600600f6f43415a628f7e324867dc556fafb973b58486015. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/IL6192400332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ba70afdc6dd6a909de975fb9c57d29716f242dda188e9809da612045ed48dfd. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/IL6192400335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501502cb41bfb7854b7cb217fab5007c5408f5732eabe1cb4da5f4d5b9e90f50. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/IL6192400336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dcd2feef20604fbc2a193664c5fdc794855c95133a15a06c8b148fce53a3db9. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T02:47:24Z), 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/IL6192400337.
Star Wars Jedi: Survivor (Original Video Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37c3749b89c0ef7448f4e4a9b8ae202ac2398a9f8fc31d551a0d9ed172ac3f0. 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/USWD12325861.