Pith Number

pith:Q25H7SMX

pith:2010:Q25H7SMXTZIYQH5TDNH3KTOU73

not attested not anchored not stored refs pending

Ground-state ammonia and water in absorption towards Sgr B2

{\AA}. Hjalmarson, Aa. Sandqvist, A. O. H. Olofsson, B. Larsson, E. Falgarone, E. S. Wirstr\"om, J. H. Black, M. Olberg, P. Bergman, P. J. Encrenaz, U. Frisk

arxiv:1009.1558 v1 · 2010-09-08 · 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{Q25H7SMXTZIYQH5TDNH3KTOU73}

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	2026-05-18T02:05:35.063435Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86ba7fc9979e51881fb31b4fb54dd4fecf3bcf3522814429caaecd26ca52eeab

Aliases

arxiv: 1009.1558 · arxiv_version: 1009.1558v1 · doi: 10.48550/arxiv.1009.1558 · pith_short_12: Q25H7SMXTZIY · pith_short_16: Q25H7SMXTZIYQH5T · pith_short_8: Q25H7SMX

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/Q25H7SMXTZIYQH5TDNH3KTOU73 \
  | 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: 86ba7fc9979e51881fb31b4fb54dd4fecf3bcf3522814429caaecd26ca52eeab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf5bd46d54aa165b845501b36fd47b39146a582b1a9b1a37ceed4bce385c1af1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2010-09-08T15:01:28Z",
    "title_canon_sha256": "86a07449ab65ed18ff73f4f7ddf62703fb1f86fb74cd301d8bb0f0aeb372ee31"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.1558",
    "kind": "arxiv",
    "version": 1
  }
}