Chandra Core

Chain Statistics
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Context Units
Total number of Context Units ever published to this Chandra instance across all spokes. Every successful call to /api/cu/publish increments this count. The number only grows — CUs are immutable and cannot be deleted.
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total commits
Spokes
Total number of spokes — governed subjects with at least one CU. A spoke is created automatically on first publish to a new subject_id, or explicitly via /api/spoke/create. Each spoke is an independent hash chain.
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active subjects
Days Active
Number of distinct calendar days (UTC) on which at least one CU was published. Derived from the last 365 days shown in the heatmap. A day with zero commits does not count — only days where the chain actually grew.
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days with commits
Last Commit
Timestamp of the most recently published CU across all spokes. Shown as relative time — e.g. "4m ago". Timestamps are stored as Common Lisp universal-time (seconds since 1900-01-01 UTC) and converted to local display time in the browser.
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Commit Activity
Each cell represents one calendar day. Color intensity reflects commit volume — the number of Context Units published that day. Hover any cell for the exact date and count. A commit is any successful call to /api/cu/publish. The chart spans the last 365 days.
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Subject Types
CUs are categorized by subject_type at publish time. This shows the distribution of artifact categories across the chain — e.g. protocol-specification, agent-log, decision-record. Useful for understanding what kinds of work the chain is recording.
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By Author
Attribution is required by the Chandra protocol — every CU records who acted. Human commits show the human_author value set at publish time. CUs with no human author are attributed to "agent" — machine-produced artifacts where no human was named.
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Most Active Subjects
A spoke is a governed subject — a distinct chain of CUs sharing the same subject_id. Ranked by total commit count, highest first. Top 10 shown. Use the test client to drill into any spoke's full lineage and verify its chain integrity.
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Recent Activity last 10 commits
The 10 most recently published CUs across all spokes, newest first. Dot color indicates commit type: green = human-authorized commit, grey = agent commit (no human_author), purple = merge CU (two branches reconciled). Merge operations require human authorization per GR-PROV-016.
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Page Traffic
Daily page hit counts tracked client-side and flushed to the server log. UTC dates throughout. Auto-saved every 5 minutes and on page close. Use Save Log to flush immediately. Data survives server reboots via the traffic.log file reloaded on startup. Week selector steps through all recorded weeks.
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Chandra Protocol · /api/stats · MIT License · General Reasoning, Inc. · 2026