Pith Number

pith:U4TA7BZ6

pith:2017:U4TA7BZ6KAI2MSYBDVJ5GSMHNU

not attested not anchored not stored refs pending

Trace hydrogen in helium atmosphere white dwarfs as a possible signature of water accretion

(2) University College London, (3) University of Kiel, (4) Universidad de Valparaiso, Anna F. Pala (1) ((1) University of Warwick, Boris T. G\"ansicke (1), Chile), Detlev Koester (3), Germany, Jay Farihi (2), Matthias R. Schreiber (4), Nicola Pietro Gentile Fusillo (1), UK

arxiv:1702.06542 v1 · 2017-02-21 · astro-ph.SR · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U4TA7BZ6KAI2MSYBDVJ5GSMHNU}

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	2026-05-18T00:11:43.956347Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7260f873e5011a64b011d53d349876d277d62a38053152a0604139fac9b0e37

Aliases

arxiv: 1702.06542 · arxiv_version: 1702.06542v1 · doi: 10.48550/arxiv.1702.06542 · pith_short_12: U4TA7BZ6KAI2 · pith_short_16: U4TA7BZ6KAI2MSYB · pith_short_8: U4TA7BZ6

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/U4TA7BZ6KAI2MSYBDVJ5GSMHNU \
  | 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: a7260f873e5011a64b011d53d349876d277d62a38053152a0604139fac9b0e37

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "74f7ab8a226033797faf84287c1667fe09a9ec7db167a874307d38cc052b31ba",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-02-21T19:00:05Z",
    "title_canon_sha256": "6de9b36383715ed325c0cdb39b72e3510662c683c62caef33dc1a3e72cc5a468"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.06542",
    "kind": "arxiv",
    "version": 1
  }
}