Pith Number

pith:N3KRDX2O

pith:2016:N3KRDX2OPZ4RF7LRLEOH5AWXME

not attested not anchored not stored refs pending

First detection of gas-phase methanol in a protoplanetary disk

(2) Harvard-Smithsonian Center for Astrophysics, (3) School of Mathematics, (4) Center for Computational Sciences, (5) Departments of Chemistry, (6) Department of Chemistry, (7) Department of Earth, Astronomy, Catherine Walsh (1), Emory University, Eric Herbst (5), Hideko Nomura (7) ((1) Leiden Observatory, Japan, Japan), Karin I. Oberg (2), Merel L. R. van 't Hoff (1), Mihkel Kama (1), Physics, Planetary Science, Queen's University Belfast, Ryan A. Loomis (2), Susanna L. Widicus Weaver (6), The Netherlands, Tokyo Institute of Technology, Tom J. Millar (3), UK, University of Tsukuba, University of Virginia, USA, Yuri Aikawa (4)

arxiv:1606.06492 v1 · 2016-06-21 · astro-ph.EP · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{N3KRDX2OPZ4RF7LRLEOH5AWXME}

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	2026-05-18T01:12:09.403916Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6ed511df4e7e7912fd71591c7e82d761207da02d3a47969cfaa8036d105d3589

Aliases

arxiv: 1606.06492 · arxiv_version: 1606.06492v1 · doi: 10.48550/arxiv.1606.06492 · pith_short_12: N3KRDX2OPZ4R · pith_short_16: N3KRDX2OPZ4RF7LR · pith_short_8: N3KRDX2O

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/N3KRDX2OPZ4RF7LRLEOH5AWXME \
  | 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: 6ed511df4e7e7912fd71591c7e82d761207da02d3a47969cfaa8036d105d3589

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f8f3618f94ec21a578211ce15a1ee2c5a435ac8eb3a86e7d622a9f124ecaebac",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2016-06-21T09:25:35Z",
    "title_canon_sha256": "a7522fe1df7682e157efe9f7db12451ed948758038563efb0475a9052e55c53a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.06492",
    "kind": "arxiv",
    "version": 1
  }
}