Store an ordered dictionary in a stream with StreamMappedBTreePlus, run inclusive range queries with FindRange, and reopen the tree with its original order and fixed-size serializers.
Read articleHow to Build a Persistent B+ Tree for Range Queries
How to Track Live Statistics Without Keeping Every Sample
Use the Statistics accumulator to maintain count, range, mean, variance and standard deviation from a stream of readings in constant memory, with its empty, reset, threading and precision behaviour.
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How to Prove One Record Belongs to a Dataset
Generate and verify a Merkle inclusion proof with StreamMappedMerkleList, GenerateExistenceProof and MerkleMath.VerifyExistenceProof, and see what the verifier must already trust.
Read articleHow to Serialize an Object Graph Without Losing Shared References
Round-trip an object graph with shared and cyclic references using the Framework binary serializers, and see how SerializationContext and ReferenceSerializer write back-references.
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How to Store Serializer Definitions Alongside Your Data
Serialize a SerializerFactory with SerializerFactorySerializer so that stored binary data carries its own type codes and member layouts, and rebuild the reader factory from those bytes.
Read articleHashes, Signatures and Merkle Proofs: What Does Each Actually Prove?
What a hash comparison, a digital signature and a Merkle inclusion proof each establish, what each leaves open, and how to combine them with Sphere10 Framework.
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Why One-Time Signature Keys Must Never Be Reused
See with a small Lamport-style model how signing twice with a one-time key exposes enough secrets to forge a signature, and what that means for stateful signing.
Read articleObjectSpace, ORM or Serializer: Which Problem Does Each Solve?
Compare a serializer, an ORM over a relational database and ObjectSpace by the responsibilities each owns: byte representation, keyed lookup, relationships, transactions and object identity.
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What Is Self-Describing Storage?
What self-describing storage records, where the metadata lives in the file, how ObjectSpace.TryOpenFromStream rebuilds a store without a supplied definition, and what the metadata does not cover.
Read articleHow to Build a Versioned Notion Archive in C#
Build a versioned Notion archive on ObjectSpace: unique indexes detect stored revisions and attachments, a nonunique index groups blocks under a revision, and one file transaction commits content and the import cursor together.
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How to Schedule a .NET Importer with systemd Timers
Run a one-shot .NET importer from a systemd timer: the process commits or rolls back one ObjectSpace transaction and reports the result through its exit code, while systemd owns the schedule, the service account and the journal.
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