Pith Number

pith:Q2NRDPSX

pith:2011:Q2NRDPSXVJKWBZJ7BTNTYDWFWJ

not attested not anchored not stored refs pending

Deuterium fractionation and the degree of ionisation in massive clumps within infrared dark clouds

Hendrik Linz, Martin Hennemann, Oskari Miettinen

arxiv:1108.5691 v1 · 2011-08-29 · 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{Q2NRDPSXVJKWBZJ7BTNTYDWFWJ}

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	2026-05-18T02:00:45.185522Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

869b11be57aa5560e53f0cdb3c0ec5b27ea0ee00def89d3c42ea70417090a0de

Aliases

arxiv: 1108.5691 · arxiv_version: 1108.5691v1 · doi: 10.48550/arxiv.1108.5691 · pith_short_12: Q2NRDPSXVJKW · pith_short_16: Q2NRDPSXVJKWBZJ7 · pith_short_8: Q2NRDPSX

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/Q2NRDPSXVJKWBZJ7BTNTYDWFWJ \
  | 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: 869b11be57aa5560e53f0cdb3c0ec5b27ea0ee00def89d3c42ea70417090a0de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c7bc99767d5d8a53dcad2437cffed4ca1f7083672420a92c85faa8db795e39ed",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-08-29T18:23:23Z",
    "title_canon_sha256": "a291b0d422b2f385002f29ead1af46897e63a63f4ac26adf30bd1ffba7c2cec1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.5691",
    "kind": "arxiv",
    "version": 1
  }
}