Pith Number

pith:WLG4IUI3

pith:2014:WLG4IUI3WB5FB3X577C5RKLVAG

not attested not anchored not stored refs pending

Simultaneous optical and near-IR photometry of 4U 1957+115 - a missing secondary star

Panu Muhli, Pasi Hakala, Phil Charles

arxiv:1408.4025 v1 · 2014-08-18 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WLG4IUI3WB5FB3X577C5RKLVAG}

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	2026-05-18T01:42:17.899668Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b2cdc4511bb07a50eefdffc5d8a975018d1dbf24d42ba8f459f7f1eaf30b4d75

Aliases

arxiv: 1408.4025 · arxiv_version: 1408.4025v1 · doi: 10.48550/arxiv.1408.4025 · pith_short_12: WLG4IUI3WB5F · pith_short_16: WLG4IUI3WB5FB3X5 · pith_short_8: WLG4IUI3

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/WLG4IUI3WB5FB3X577C5RKLVAG \
  | 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: b2cdc4511bb07a50eefdffc5d8a975018d1dbf24d42ba8f459f7f1eaf30b4d75

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eb424b5e62112847f31c5f19dd85ed776f240fad5c5744e19dd8c3e559b14a53",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2014-08-18T14:45:39Z",
    "title_canon_sha256": "f0d4014c43ab5abc5c7c112d3345c711c3e176f7cf9f04be2c249340df7b0a95"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.4025",
    "kind": "arxiv",
    "version": 1
  }
}