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 0xc14fee4cf7e8d82d9b787cf5a1a820fe131f9eb12906f1555704fe4812483290. 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/dc888bae-beea-42aa-b5f9-2ef6e022bb0e.json and https://artists.proofprofile.net/proofs/artist/dc888bae-beea-42aa-b5f9-2ef6e022bb0e.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe759f900bc53da2c3c657217ede5a69a7781ef0cb9fae52560bf4551307edd5d. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T07:21:40Z), 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/QZHNC1919052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x774022f16a30bc41cd502f18eca82070622a61aad0f120e04b98c096b10e43fb. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:22:52Z), 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/QZDA82291284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4ec947c2fcfb01426bcb9a25e86a8588a27b08ba30efdb1387cef05b2e1d29a. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/QZBRF1856407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e705088db5ecf8d4cd62f31674370a009f820a1e59ac16e704d78d513debdd2. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:10:10Z), 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/QZBRF1856719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce8c11d1f7ec3c39aefcfcd3ecd0e3cba51a468fcfb8cb201b867b12c4b94d7. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QM4DW1850636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5a02da1ba85985492d987d24c18f0bb91a0080f06ad89854696afbb4458b1db. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/QZCE61828332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad033642adad2dae2196ba3dbbff0bff026489e96da8ab200b3b70a56de892c. 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/QZDA71965492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a5b48bc1d548b29cf447cdd7e3d8759a632fa04b326a41f7d1ca0997e9894c. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZNWR2076239.
Do You Believe In The Existence Of Extraterrestrials?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2329c7d0bec8099b236efbeb2d989970036c96fd33442b80c1f1a9c0034f5ab7. 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/QZK6H2132824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c7e9d30e3696982983eccfcc5f0630695e97711da2174a4919bf24b4c564b8. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:16:25Z), 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/QZTB52233814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f07a2861ee729c8c62fd96a151aaf699568ccae123d7ee3862a05cac34eeb7. 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/QZTB52233815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33675824fa9c4044cbdbff215638bd921eb9acd2b694df9ddb7a815aa09ce8e6. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZES92248686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c9e899bc6289ad8a081f0ad0e2701ca0e6df86e11f49b341a6252a7a6bd7b55. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QMGXA2051538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e673aeb0388330787bdcf4cd6bc4b2a4b5705f2c6151a8a3b4bcb963648dde. 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/QMGXA2085175.
The Fire Temple - Stage (feat. Ari Mason)
Mortal Kombat 1 (Original Video Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x623e6fbbc429708b5b8c9e78521a5c3668e328b84b3b8a6754d466efa3018059. 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/USNLR2301440.