DSPS may refer to: Defense Support Program Satellite, a system for detecting ballistic missile launch and nuclear warhead detonation. Delayed sleep phase disorder, a circadian rhythm disorder, form
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 0xfbd5a79434ccc7934c0382eed3ebe70f30bc35b754c7abf62ea142d75c0e5e45. 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/7f23a8ad-3084-4a64-8aae-c9707906870c.json and https://artists.proofprofile.net/proofs/artist/7f23a8ad-3084-4a64-8aae-c9707906870c.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 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 0x1acfaedd6a59ef785500b060b613749f01e1d18b01e34d9f763a4c5a024fd957. 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/TWDX11800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5784164f2fc969b2278950eba26d5d97725c480602e61f793e2d024368a1896a. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/TWDX11800014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x199d05fdc18a0f5adf21dcb5928dd6da3b341d624a3a9f3e32fae5b9fa4d9a70. 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/TWDX11800015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x140cfe972c091f57dc6dd29fbd80f2897797b5c7c033efbb3455a629824f64d5. Chain 2 (Bitcoin): anchored in block 958882 (2026-07-20T12:45:27Z), 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/TWDX11800016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e23c3bae52070060f5df1a299ef7d6def6274d74bf95b3354d919841e0973c. 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/TWDX11800018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd656f04d31d3096b865eb741011b423d9b8f79b14446c5cc23071b304a42145c. 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/TWDX11800019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57be9626a92d269b19b376870dec78a39e5e987f36108b9ea9f84c04b1abcd7f. 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/TWDX11800020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee3858a3c29cdf1adf5a85a9e0b2afa354beb684ed5ed93e784ec33d7790dcc. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/TWDX11900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde55b6e7f333366ca2f57dd5c039cf58bdda7ba23a5d1e4d970475a9faafaa2a. 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/TWDX11900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea525766f737356260f6e986c151fb03b6f4b9cb37bb1ae462c42fc77fba49f. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/TWDX12000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53040ef57b0af9e3d5a38da2e2ed9499ea978b106a7a0846f9ce1b91c773dd2. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/TWDX12100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a56fd734274a65e695bae22ba50ca662271b3ba228cdcf799665567f90b1991. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TWDX12100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x470101b91550d9248d4ec9057eded94f542749aee1b3637260c3976fe4c4cb7e. 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/TWDX12200029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe104f35358d699086748a3c00c84c96ed95a194c851e766a8dd2d7338fb04a15. 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/TWR911618104.