Pith Number

pith:IJBF5C2M

pith:2010:IJBF5C2M5GHUJSWX2PPWE2KD7Y

not attested not anchored not stored refs pending

Herschel/HIFI observations of interstellar OH+ and H2O+ towards W49N: a probe of diffuse clouds with a small molecular fraction

A. Coutens, A. Cros, A. G. G. M. Tielens, A. Lorenzani, B. Godard, B. Mookerjea, C. Gry, C. Joblin, C. Persson, C. Vastel, D. A. Neufeld, D. C. Lis, D. Teyssier, E. Dartois, E. Falgarone, E. Herbst, F. Boulanger, H. Gupta, J. Cernicharo, J. H. Black, J. Kre{\l}owski, J. Mart{\i}n-Pintado, J. Pearson, J. R. Goicoechea, J. Stutzki, J. Zmuidzinas, K. Klein, K. M. Menten, L. A. Samoska, M. De Luca, M. Gerin, M. Kazmierczak, M. Perault, M. Salez, M. Schmidt, P. Encrenaz, P. F. Goldsmith, P. Hennebelle, P. Hily-Blant, P. Rimmer, P. Sonnentrucker, R. Ko{\l}os, R. Monje, R. Plume, R. Shipman, R. Szczerba, S. Philipp, S. Schlemmer, S. Yu, T. A. Bell, T. Giesen, T. G. Phillips, T. R. Geballe

arxiv:1007.0987 v1 · 2010-07-06 · 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{IJBF5C2M5GHUJSWX2PPWE2KD7Y}

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	2026-05-18T01:09:23.813524Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42425e8b4ce98f44cad7d3df626943fe2208196e9c10ca305b079e1bb52e8bea

Aliases

arxiv: 1007.0987 · arxiv_version: 1007.0987v1 · doi: 10.48550/arxiv.1007.0987 · pith_short_12: IJBF5C2M5GHU · pith_short_16: IJBF5C2M5GHUJSWX · pith_short_8: IJBF5C2M

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/IJBF5C2M5GHUJSWX2PPWE2KD7Y \
  | 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: 42425e8b4ce98f44cad7d3df626943fe2208196e9c10ca305b079e1bb52e8bea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55d4e67cc1de0fe0613db866142b65dc63a31c3e49127a4850c9cc69729b1177",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2010-07-06T20:00:00Z",
    "title_canon_sha256": "a09682c0a80a5e3441f9a318189d9331c2ad5135751a6dc90679f74feba4c54d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1007.0987",
    "kind": "arxiv",
    "version": 1
  }
}