Pith Number

pith:MUKDGKWZ

pith:2018:MUKDGKWZKX6NAKRJQWHFBQYLMU

not attested not anchored not stored refs pending

Imaging the water snowline in a protostellar envelope with H$^{13}$CO$^+$

Daniel Harsono, Edwin A. Bergin, Ewine F. van Dishoeck, Jes K. J{\o}rgensen, Magnus V. Persson, Merel L.R. van 't Hoff, Ruud Visser, Vianney Taquet

arxiv:1801.02636 v1 · 2018-01-08 · astro-ph.SR · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MUKDGKWZKX6NAKRJQWHFBQYLMU}

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	2026-05-18T00:14:46.584327Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6514332ad955fcd02a29858e50c30b6534cb9d0eb7ab8ffa7905466f5d9e1def

Aliases

arxiv: 1801.02636 · arxiv_version: 1801.02636v1 · doi: 10.48550/arxiv.1801.02636 · pith_short_12: MUKDGKWZKX6N · pith_short_16: MUKDGKWZKX6NAKRJ · pith_short_8: MUKDGKWZ

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/MUKDGKWZKX6NAKRJQWHFBQYLMU \
  | 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: 6514332ad955fcd02a29858e50c30b6534cb9d0eb7ab8ffa7905466f5d9e1def

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "490f62a7d0fc73b48ae23524eed22c8e64fc942ade8579d59bd86a4d4e556105",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-01-08T19:00:10Z",
    "title_canon_sha256": "eb922cd4a8045e862c4940fa387eaf6a87213f859d3633936bf6e706abe04189"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.02636",
    "kind": "arxiv",
    "version": 1
  }
}