Pith Number

pith:2Q6GNYCK

pith:2012:2Q6GNYCKTVBOIR6KWM43JIDS5Z

not attested not anchored not stored refs pending

Exact solutions in gravity with a sigma model source

A. A. Golubtsova, V. D. Ivashchuk

arxiv:1204.0091 v2 · 2012-03-31 · gr-qc · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2Q6GNYCKTVBOIR6KWM43JIDS5Z}

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	2026-05-18T01:57:59.774895Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d43c66e04a9d42e447cab339b4a072ee694578b43ef5f5cb6e73d3e6f8b0d982

Aliases

arxiv: 1204.0091 · arxiv_version: 1204.0091v2 · doi: 10.48550/arxiv.1204.0091 · pith_short_12: 2Q6GNYCKTVBO · pith_short_16: 2Q6GNYCKTVBOIR6K · pith_short_8: 2Q6GNYCK

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/2Q6GNYCKTVBOIR6KWM43JIDS5Z \
  | 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: d43c66e04a9d42e447cab339b4a072ee694578b43ef5f5cb6e73d3e6f8b0d982

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8fd25bdf71d54d68cf486da7da285edff54bf4e9f79740080be24ee662e24928",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-03-31T09:58:03Z",
    "title_canon_sha256": "d572036dccb2bce6df3c392b3f67f50619aca67813bb0f07b7e74ad6ba69e5b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.0091",
    "kind": "arxiv",
    "version": 2
  }
}