Mad Planets is a multidirectional shooter released as an arcade video game in 1983 by Gottlieb. The player controls a spaceship, which can be moved and rotated independently, to fend off angry planets
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 0x0c1a2d175098e9d3f5c605218fdd85f0a3de4663c28478a2f235d422fd863ebd. 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/a99a90c6-1b96-4d24-8b11-b1ae77297a61.json and https://artists.proofprofile.net/proofs/artist/a99a90c6-1b96-4d24-8b11-b1ae77297a61.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Music Makes Me Think of You: A Collection
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 0x236690bad54c41a349fe6f09e94d214513e3bb8f775861d00074e5ae8e099c19. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZ8251806336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74aff346876715569167fd2d851cbb659c8ffde4cb2aeea34eca98ddb5128ee1. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZ8251806337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef47a637e293b6f66fafb099bd55b87e78dbdee06295b94674d4eb0deac114e. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/QZ8251806338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x862541d79d7024941b0022a109b61ef17bccb17bb720e3a1eb725e488f382a92. 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/QZ8251806339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24536c28cf85dbdab8d42a9c80f820a8e1100c692d57985623e0cbcb50d123dd. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZ8251806340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e112a9a5b252c60b503f2711b23a5a1a9dd6c2aa31ed5083e8c4cec2a62dd38. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/QZ8251806341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5336801dfff52d2df815a1d49f464ea991fa99531161a16155a8f7b6c8487d50. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZ8251806342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x999cb1ec31d42791136f898673cb4bd400d21494a8ec660d34030a217be02e1b. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:43:53Z), 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/QZ8251806343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93d2119ff63d92af93e5a7114f4ce21f8224e136f91030308b09a152a2cbc3ac. 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/QZ8251806344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6a798f1b8c7f20acfcd1b7d484bcc4252aa00db63fdf033b2b251bf7d71268. 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/USA2P2208212.