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

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

SIREN 4 holds at 54.5

AI activity index today · AI activity level today · SIREN

Observed . The composite rose 0.4 points to 54.5 of 100. Capability was the highest-scoring live pillar at 65.3. The level did not change and no anti-flap rule was triggered.

54.1 54.5 +0.4

SIREN 4 · ROUTINE

Observed at
Prior score
54.1
New score
54.5
Change
+0.4
Level
SIREN 4 (ROUTINE), unchanged
Anti-flap rule
none
Engine version
1.0.0

Which pillars scored at this observation?

PillarScoreLive sources
Capability65.31 / 4
Compute & Capital46.21 / 3
Attention35.32 / 3
Governance53.01 / 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
2026-10-21T04-26-05Z
Hash
sha256:1e03281730b15579c242ddeb209f21fc23003f16a93fb9b65722093744097e2c
Previous hash
sha256:a479cf5ecb88114619697dbac553689a8e0c59981a2c85a2ccf19f7e317f5296

What questions do people actually ask?

Which pillars scored at this observation?

The composite rose 0.4 points to 54.5 of 100. Capability was the highest-scoring live pillar at 65.3. 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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