DarkSpace is a massively multiplayer real-time strategy computer game developed by PaleStar. Released in December 2001, DarkSpace involves multiplayer spaceship combat between three player-controlled
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 0x525c6ee274ecf8cee09b6ab46ee10e76a447333b9c2ade09609123a0e7cdd6c3. Chain 2 (Bitcoin): anchored in block 953654 (2026-06-14T16:26:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4958bd38-0402-4db4-a01a-8bd0a27378b7.json and https://artists.proofprofile.net/proofs/artist/4958bd38-0402-4db4-a01a-8bd0a27378b7.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 0xe6c2ffd94392fcfee7ead1bc4c5a137b5c303344665bf721e2ef8ddf31aa1816. 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/USY251960190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4719416fc7ba1c391ec5d260538ac96e6ea778c60924a2295fef1bb9501961. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USY251960191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bbf6cfa63cc8709c41a7fa05350999c76d251a30941b0dc4bf7ca81fa3b10ed. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USY251960192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2ef28560dd3982f57ac4560e4e312dace0adae6f398ad6117666575465aafab. 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/USY251960178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53219110ddb47b04a7c94a445659e600b569eda5dde6feb2a3839d4fe78b4f67. 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/USY251960179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb8ee8962c8397d5b2a211ecdcd7a73239a800a8e9ba79b29d4e67a3879c081. 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/USY251960180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0981c15def0a2a1087e3196596dcc9c5b73daef357162a1c53835e5f9e4b9723. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USY251960181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x520b247a8b40ba45e872081456ed0056937f2cff90ca2e75b7d43c4695a470d1. 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/USY251960182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37c17855c383b696a3e0b75f3616407946495e7d6f75d8313e1976f16e56f76a. 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/USY251960183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44a718e9e6a9bb35c5de10a63ec94b9ce6d5c8127113336dc6bb4e2fb64c3654. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/USY251960184.
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 0x01e030308b4d82bdc98e034ad63d05a2e9980c9a24381f5711748f8d1092b199. 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/USY251960177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b7346988434e47d9361471a6712b619042999e5747d5edbfabd47ce905e327. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/USY251960175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc42f17ff36756529256b934ddc83af82264e25c30cf74e045a7828ed215cd0e9. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/USY251960176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae546a37d5a8f0080ab94277b25f065b13cd9b1fc7199326e396f72a0002e77. 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/USY251960168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dcfb0a874bff8c60b46705fd83b7d30013361a4e34b02f24f747a76bea4e521. 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/USY251960169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb39f61f4a9d994d2108997740c1197bce033101f1c7361ed7f03be347f3bfd2. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USY251960170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7693ed795efee7e58e575630886dd9a2b1ed6faa9ab9c02f2e73e257c14ebce. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USY251960171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1f8f5a4c61870197bfb03f9092789416c17348a96c3456a637db6d119253b02. 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/USY251960172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52789781f12bb8628468cb3735fbd22cce74eadfe5c03c604b6aa8b54911458f. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USY251960173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f5f7f8e9060b389eba69f0f5077f7bcb173d75c7365a73f7086449f8fdb057d. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USY251960174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bbbef09cc1befd6679c96c3a09133bc5b55f5f262ef131a12c217b6f0b8a710. 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/FR33T2377601.