Pith Number

pith:QL2XGHCA

pith:2019:QL2XGHCA6TFZUSFBTYI6JWTGJK

not attested not anchored not stored refs pending

A Search for Water Vapor Plumes on Europa using SOFIA

C. DeWitt, E. Bergeron, E. Montiel, H. Weaver, J. Grunsfeld, K.P. Hand, M. A. McGrath, M. Richter, N. Dello Russo, William Sparks, W. Reach

arxiv:1901.00086 v1 · 2019-01-01 · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QL2XGHCA6TFZUSFBTYI6JWTGJK}

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	2026-05-17T23:55:10.386124Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82f5731c40f4cb9a48a19e11e4da664a94183b9399fcd1dbfc1570d877003e46

Aliases

arxiv: 1901.00086 · arxiv_version: 1901.00086v1 · doi: 10.48550/arxiv.1901.00086 · pith_short_12: QL2XGHCA6TFZ · pith_short_16: QL2XGHCA6TFZUSFB · pith_short_8: QL2XGHCA

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/QL2XGHCA6TFZUSFBTYI6JWTGJK \
  | 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: 82f5731c40f4cb9a48a19e11e4da664a94183b9399fcd1dbfc1570d877003e46

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a6973bf9aa50de9b5f20ecf2e003ebfcb7e7adfb4551d9666f787eeaedc58a0e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2019-01-01T03:54:54Z",
    "title_canon_sha256": "18a2be36d37e84301e5e69c7f0818829a89a437b5bf1f01cbdf028ecf99e31d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.00086",
    "kind": "arxiv",
    "version": 1
  }
}