Pith Number

pith:4XKXVGN6

pith:2021:4XKXVGN64GGTOQZDOUXYBF7ZF4

not attested not anchored not stored refs pending

Water in star-forming regions (WISH): Physics and chemistry from clouds to disks as probed by Herschel spectroscopy

E.F. van Dishoeck (Leiden), L.E. Kristensen (Copenhagen), the WISH team (50 co-authors)

arxiv:2102.02225 v1 · 2021-02-03 · astro-ph.GA · 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{4XKXVGN64GGTOQZDOUXYBF7ZF4}

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	2026-07-05T02:31:50.850790Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5d57a99bee18d374323752f8097f92f00ba7967532065c274de6f9dc207dda4

Aliases

arxiv: 2102.02225 · arxiv_version: 2102.02225v1 · doi: 10.48550/arxiv.2102.02225 · pith_short_12: 4XKXVGN64GGT · pith_short_16: 4XKXVGN64GGTOQZD · pith_short_8: 4XKXVGN6

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/4XKXVGN64GGTOQZDOUXYBF7ZF4 \
  | 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: e5d57a99bee18d374323752f8097f92f00ba7967532065c274de6f9dc207dda4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "982929f68b9d039ead67a9c25cedbdb8cfb5f123b0c5bafbd156d9640c1fd2a7",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-02-03T19:00:08Z",
    "title_canon_sha256": "fa35e3d96d4daf8e5a6a32dcb74cd30fdc8b9d9330d5bdc97dd286d6e20ac0e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.02225",
    "kind": "arxiv",
    "version": 1
  }
}