Pith Number

pith:F3RVECN3

pith:2013:F3RVECN3F34WX5GA2TEK6XE56F

not attested not anchored not stored refs pending

Optical variability of quasars: a damped random walk

Chelsea L. MacLeod, Zeljko Ivezic

arxiv:1312.3966 v1 · 2013-12-13 · astro-ph.HE · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F3RVECN3F34WX5GA2TEK6XE56F}

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	2026-05-18T01:45:50.552953Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ee35209bb2ef96bf4c0d4c8af5c9df176780242015fd4e9d21908c1eb74b1e2

Aliases

arxiv: 1312.3966 · arxiv_version: 1312.3966v1 · doi: 10.48550/arxiv.1312.3966 · pith_short_12: F3RVECN3F34W · pith_short_16: F3RVECN3F34WX5GA · pith_short_8: F3RVECN3

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/F3RVECN3F34WX5GA2TEK6XE56F \
  | 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: 2ee35209bb2ef96bf4c0d4c8af5c9df176780242015fd4e9d21908c1eb74b1e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f489fe4d9d252b2f4d154382be1bf2f630fb0beee14532f7c35b8324c618267b",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-12-13T21:42:29Z",
    "title_canon_sha256": "fa5daf605bbc32606eadba8ce05c8b8fd14c1c1491e86f7843bfbf34d45a0f24"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.3966",
    "kind": "arxiv",
    "version": 1
  }
}