Alexander Brandon (also known as Siren in the demoscene and tracker community) is an American musician, former member of Straylight Productions, who composed music mostly for games produced by Epic Ga
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 0x902fb58f7355eb96b55e681366be7a83a3129a7708e5d80b925e7f5cf13868fc. 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/be1e8139-be38-4f68-8259-033ee49b4583.json and https://artists.proofprofile.net/proofs/artist/be1e8139-be38-4f68-8259-033ee49b4583.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Initium Squared (Original Game Soundtrack)
City Conquest (Original Game Soundtrack)
Back to the Lab (from "Jazz Jackrabbit 2")
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 0x40284e5f63cccd1b8ee73e1515cff3d277d1b172bdae37bd157aea75af90098e. 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/QZ6K41800128.
Cloney: A Tapped Out Adventure (Original Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x526e5a3e84d628b177a1f97788c1ac3b114183cc3f1fc90f4c2f72cc78a397a2. 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/QZ6K42000479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x819f7496eeb0b2e5ae12eecb294e3fdc8666dff24fa93ce52c4fa2be9fd50a7a. 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/QZ6K42000481.
Conspiracy Theory (Versalife and Majestic 12)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc9f17df99f7e1b562250b490d92697262d89996762a2a4749edfe5b33c244f. 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/QZ6K42000482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb005722a51b1285b4f5d7fe6495475d08fee411c0ad37414df305c842419f57a. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZ6K42000483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc79ac03bb8612fbc2dbee8722b7bdb9f8b5e50c03abbb13486b35211b50a0a7a. 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/QZ6K42000484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x297a7bcf0ee0b2133b4c35aea8cc145ec1be8ab5359373315bad90677ab73491. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/QZ6K42000485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11974435553726883d9372cb35a03c97d5bd7c715be39146d8a37515cb91e92b. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZ6K42000486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee979699cdeadf83fb2a8d04ddbe71b3afc29378dfc6b31b4a9f603c59ce9d9f. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZ6K42000487.
Taco: Hamster Hero (Original Game Soundtrack)
Tournament Rematch: Unreal Tournament Remixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae11274bc0fe4fb7e18a43902c8aa5d667b59690f3b938cee436e3565e9419b1. 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/QZ6K42400593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x452a4acee02dd7bf9b5983b8b5407e0c3184c963d099435a331a0ca6ca08038b. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/QZ6K42200232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9e52482c80985bcea87009aa4e17b2d96348e6f88f7349ee208b2ee6f0bd01. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZ6K42200233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04507467cc09c8843c64131172581b7f3f6208dec8023725f743baa774bdd416. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/QZ6K42200248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c29ed94b22da0707fb849e44ff5d846753d11ab4d7d2e5bd9d1bdbf23e361ca. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZ6K42200249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d9fc389753051c03dfd8c1e771e835fcf7019c03926ac9f32f93deaff1f64d. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZ6K42200234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0c9a6dd1f08db848c726773c35a02e6e8b3c6f958e1d3ac163ae50d8359b46. 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/QZ6K42200250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ae6a3a3ce4b1863c2f27bb50bfccfd0534e111c6489f5078429b265f4e1b5d. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/QZ6K42200251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8661e96c909054ed39bdf076af9996caddbbdf430607e42dc1a12873923c391. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZ6K42200252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29eb501e52ee2a4a1bae04e34724ed0eaff4996344743acc9da42b873dc59181. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZ6K42200237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfcea0269f6a71b22930905c9349614ec4307397a3a72c22915a88a1fc56d425. 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/QZ6K42200238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e5eb1525a8a05968d7a8423924821923cec218ba9eebdb434fc7c8229de18b9. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/QZ6K42200253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcffc0bc27a0565958b97efa4620fe1b90148e525b52c771808f1fe2fa592da66. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZ6K42200239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1e72deef83065ab09020e2aec83c2e6fc0e3bf1ca9c10d3f77e5bb101db112e. 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/QZ6K42200254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x576ff8ae63eda7cc97799d4d6d7b4b705fdab0dcb2772f9caddd5c9c87ade44b. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QZ6K42200255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f4271b410b2961fc7f9b8cc6b2a9a94f72f959544a20adb1884bac4dd0b9254. 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/QZ6K42200240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71d6c6e9dc7dbf7d74f8b1353337556c708567576cbd38fca7650baf41921bc9. 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/QZ6K42200256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x393aa7b6c1d35049fc4bb17ef2b956c3c8fb481342b173fdc8c7175920a79125. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZ6K42200241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58f399ebfa46c75f6784dba0efe1015430ed991012270afd79d52384688e1aab. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QZ6K42200242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc47b7673f9ba4e19bc13528c15b3054eb184c5c2435360672fe38161ddb4e0a6. 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/QZ6K42400594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47dae0d265bf7175ad76a541ecc669b58fd2ab531d6ce749346586cffb8e87ac. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QZ6K42200258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22e074baf742e7af270bf5388269dcb20b4c8a6966e44046e7414df55a9c0d3d. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/QZ6K42200244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf46a212569a61b829df65773d238945fa5b07d109b0e1c535eb10a88bc70ec7. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZ6K42200245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe40e7c0983371f822f2b7bc61debcaf5b061796046e96e5b68a4bc754c9a020f. 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/QZ6K42200259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb53eb9fdcbc32b138e84a82cd165e334c87a50d7ee246a53dc8bfa74d8669aa0. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZ6K42200246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb5cddba0742567d7a5d180d0ecd7f1b69250a2b83c5574bc28638bb891ee82f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USE831537368.