DSM or dsm may refer to: Science and technology Deep space maneuver Deep sea mining Design structure matrix or dependency structure matrix, a representation of a system or project Diagnostic and
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 0xe0f27540fb9631b00f9dab2af95179f2fc8d65fe0342ff79767e360e869f1bdb. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/77c954c8-2fc8-4f68-8940-cc07dbcc83a0.json and https://artists.proofprofile.net/proofs/artist/77c954c8-2fc8-4f68-8940-cc07dbcc83a0.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 0xa4eb5e1a927d2e881691a0638815f91d4ddbd916a95cde6596a7b5ee6685f4e0. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZWFQ2400977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d383caa6413c07aa14e43036b8f8f80aea3567f6e9a4dbca90309924a16417. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:57:59Z), 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/QZWFP2410605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb46632884608724b6302b8533c98476d6a63b5474e4e237e5b35cf574cd37ca0. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:57:27Z), 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/QZWFV2486644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f289c9c127f9bcabe410a0eea0e666ee78a4cad0cb003c57e409a31a308197. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZZ7Q2436262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d516ab6e8cf805b7653c81b128b395dfc50b55fc5c10b080154d0c41ecc4b1a. 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/QZK6L2570409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f7a6b221adadaa7ca0cdbd9184db2fa9c701aeb67bb2d3148104c83824b4c3. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/QZK6G2534840.