Pith Number

pith:QJI665Q6

pith:2016:QJI665Q6F2VL43LFPG5JGJGFWS

not attested not anchored not stored refs pending

Correcting biased observation model error in data assimilation

John Harlim, Tyrus Berry

arxiv:1611.05405 v1 · 2016-11-16 · stat.ME · physics.data-an

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:58:27.173487Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8251ef761e2eaabe6d6579ba9324c5b497bd75930fd15bc231ef8be5b1baee87

Aliases

arxiv: 1611.05405 · arxiv_version: 1611.05405v1 · doi: 10.48550/arxiv.1611.05405 · pith_short_12: QJI665Q6F2VL · pith_short_16: QJI665Q6F2VL43LF · pith_short_8: QJI665Q6

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/QJI665Q6F2VL43LFPG5JGJGFWS \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 8251ef761e2eaabe6d6579ba9324c5b497bd75930fd15bc231ef8be5b1baee87

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2cd6b095ce16e97d30012600f9d702cbe3ac036d8e6202b6e91c79f8a3bfbbc9",
    "cross_cats_sorted": [
      "physics.data-an"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2016-11-16T18:48:18Z",
    "title_canon_sha256": "e2eaa4034da0d7b39e36d2aa37dec014553e79a0df44f175a137e684e1db5e68"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.05405",
    "kind": "arxiv",
    "version": 1
  }
}