Pith Number

pith:VAS4GNTF

pith:2019:VAS4GNTFMZD7OKO6RL7CBK47YA

not attested not anchored not stored refs pending

DW Cancri in x-rays

A.A. Nucita, D. Licchelli, L. Conversi

arxiv:1901.04711 v2 · 2019-01-15 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VAS4GNTFMZD7OKO6RL7CBK47YA}

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

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	2026-05-17T23:55:52.729951Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a825c336656647f729de8afe20ab9fc000e591adfe2d8b255a550c6148bbebec

Aliases

arxiv: 1901.04711 · arxiv_version: 1901.04711v2 · doi: 10.48550/arxiv.1901.04711 · pith_short_12: VAS4GNTFMZD7 · pith_short_16: VAS4GNTFMZD7OKO6 · pith_short_8: VAS4GNTF

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/VAS4GNTFMZD7OKO6RL7CBK47YA \
  | 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: a825c336656647f729de8afe20ab9fc000e591adfe2d8b255a550c6148bbebec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d177392b84296d3f66c86302e796804fb61eee2578e4b75116fe86f9b1c17556",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-01-15T08:50:47Z",
    "title_canon_sha256": "bd8c22f246b2f6fd5a3ca2b3eb77196e72ddd48fcccec7ebb87112631212020b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.04711",
    "kind": "arxiv",
    "version": 2
  }
}