is a vertically scrolling shooter developed by Compile, originally published by Sega in 1988 for the Master System and then by CP Communications for the MSX2. The Master System version was released o
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 0x8348203a757edf5c0a0fab253da8542dfa256a51e68386b33857af3ca68544f7. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/460b77b4-6d2f-4798-95f0-edf8b614dc76.json and https://artists.proofprofile.net/proofs/artist/460b77b4-6d2f-4798-95f0-edf8b614dc76.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 0xc313e34aef2ec06ce46cd30ac6d06f0408fb65f1dae65911eaee6e0a8383aaf9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZZ7V2458739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2fcb164157bf9f1a0a7c3b230344ad984600397c772b0f2e6e6619f6122ac44. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZZ7V2458740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x205379337d2bedcf398762f11daca8548b7d541ecb03125dbe6e58dd45061909. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZZ7V2458743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x765c9644b4c4df14fc9bfbbc87ebcbdbfef3a25b90b9741a092b03de4f9aaf6a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZZ7V2458745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5897010b9dafc70825819c8e15848c1bd2e3552dbc6e71c034c4d528ed4273a. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/QZZ7V2458741.
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 0x61b1f29276344d43ebf3e581ae350a6346aca8a45823c7063f3a4bd457e3dd33. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZZ7V2458742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ae2c011a928def33ddc51bb339cf89db2a068b7b3b662c351f8293761ed8ec. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/QZZ7V2458744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf800c7708c33e32783d282a09748026ca963856f73b1d61a22f15a042d3a76d7. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZZ7V2458746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51bb7ac42254611b1f70610b3e5ade9e1cdbf9997ddc93a2815de9884a1a0156. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZES52553138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc5cfb873739acd4535233e41dd17b8482384a0c58a61d2aed569877281de4d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZFZ72591322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f7ec7f6a9f770ad33e6d05240322905c78bb884e18d1c349c597a0f513f98de. 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/QZDA42587604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe02c04ab5e46152d5026ce2e886c1fbedca56bc5f6a5c0b0e5dbe5ba750ec652. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QT3EX2404975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f12aaeaa4948de46d4cb84ebc4bbe201654acbb2bae8c4c6e29815a082ec3c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZTBF2461440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f398667657c633f7440b080349224b0133fb253e7817ec6410603a6871aeb5. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZTBF2419460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x167b726002621784a896ae5b73db85918b042dd7a03cb17e8e3be189711f91a6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZTAX2428868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x170204ba4ac65ccd54cbb6fadfcc7bc525e56b8ac87837cf0d6428c5b6f2e42f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZTB92496099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9304e9e2b30d175ffda3cfba17c3135c308384520882deb19802c2f24a084923. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZNWR2488985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29904ab0cc60e43f5a6d49a5ae21eb06391209fee38dd2776c15faeee6aa1abd. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZNWR2488987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a8658a40fe63fef0f9bc9e5b7d5824ddd0679b9b6dacb036aaaf9dc346c5153. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZNWR2488988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4fe14e726371471aa34d4633f7d5a7851c2d1f48c279c35999ef37a9d21a312. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZNWR2488989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cb0a4f29f98c4828b9c6b97af4902cb4ea1cd398f595708351b34014a0a4ff9. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZNWR2488986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394fe5408759f43c3c05636d12d28f92bbeb0b9e6f60248d72f6c0b1e371ab05. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZHN72403339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe9e2c29c3bf0cfa96eb6d552a63ec34c950a6a3352672e752b393f0a5f0337d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZHN32469537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7de3ff11d2cd892c64530416b45389fddf999dac826791603202841d26d7d9c1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QT3EX2495359.