Pith Number

pith:R2YMATHU

pith:2009:R2YMATHUDJWI35E5USO7HOK6PC

not attested not anchored not stored refs pending

Dragon-Kings, Black Swans and the Prediction of Crises

Didier Sornette

arxiv:0907.4290 v1 · 2009-07-24 · physics.data-an · physics.soc-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R2YMATHUDJWI35E5USO7HOK6PC}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

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	2026-05-18T02:44:32.805842Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8eb0c04cf41a6c8df49da49df3b95e78b787f064df7eb5cb4d9bd32817ee5b42

Aliases

arxiv: 0907.4290 · arxiv_version: 0907.4290v1 · doi: 10.48550/arxiv.0907.4290 · pith_short_12: R2YMATHUDJWI · pith_short_16: R2YMATHUDJWI35E5 · pith_short_8: R2YMATHU

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/R2YMATHUDJWI35E5USO7HOK6PC \
  | 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: 8eb0c04cf41a6c8df49da49df3b95e78b787f064df7eb5cb4d9bd32817ee5b42

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c9a85a7f50f5152d3065f3afb9e813e7741e7d2c1d6844cbd2b5ccf39f80ef6",
    "cross_cats_sorted": [
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.data-an",
    "submitted_at": "2009-07-24T13:58:43Z",
    "title_canon_sha256": "f33686909ab00b48bdb29b517c2692ce02bdfbe8d89e5df4e62b916e884e11b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.4290",
    "kind": "arxiv",
    "version": 1
  }
}