UTC19:23ZNowSIREN 454.6/100Delta−0.1downsince 18:47ZObservedSources18/18reportingStatusOPERATIONAL

Where are the SIREN index moves? · 2026-10-21

SIREN 4 holds at 54.6

AI activity index today · AI activity level today · SIREN

Observed . The composite rose 6.5 points to 54.6 of 100. Capability was the highest-scoring live pillar at 63.9. The level did not change and no anti-flap rule was triggered.

48.2 54.6 +6.5

SIREN 4 · ROUTINE

Observed at
Prior score
48.2
New score
54.6
Change
+6.5
Level
SIREN 4 (ROUTINE), unchanged
Anti-flap rule
none
Engine version
1.0.0

Which pillars scored at this observation?

PillarScoreLive sources
Capability63.91 / 5
Compute & Capital46.71 / 4
Attention38.72 / 4
Governance53.21 / 2
Marketsno baseline0 / 3

Which inputs did the engine see?

Every reading the engine saw, exactly as fetched. Dark sources are listed as dark and were excluded from the arithmetic; none of them was imputed or treated as zero.

What is the receipt for this observation?

This observation is sealed into an append-only hash chain. The hash is the SHA-256 of this receipt’s canonical JSON with the hash field removed; prev_hash is the previous receipt’s hash. Change any input after the fact and every subsequent hash breaks.

Receipt id
2026-10-21T18-47-56Z
Hash
sha256:a27d66fb2baf0a96c2adcae21c7fbc2cd853576c39591c0d78559c589fe4731e
Previous hash
sha256:30e792d10bc1f9d73345e80c81c61071b0a4eeeff4c5ca9427e4e3cf0b72a3f4

What questions do people actually ask?

Which pillars scored at this observation?

The composite rose 6.5 points to 54.6 of 100. Capability was the highest-scoring live pillar at 63.9. The level did not change and no anti-flap rule was triggered.

Which inputs did the engine see?

Every reading the engine saw, exactly as fetched. Dark sources are listed as dark and were excluded from the arithmetic; none of them was imputed or treated as zero.

What is the receipt for this observation?

This observation is sealed into an append-only hash chain. The hash is the SHA-256 of this receipt’s canonical JSON with the hash field removed; prev_hash is the previous receipt’s hash. Change any input after the fact and every subsequent hash breaks.

Does this move mean a doom probability?

No. SIREN measures activity tempo. A move is a score change with a receipt — not a probability of harm.

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