Pith Number

pith:PORVWDKR

pith:2012:PORVWDKRTU56KHF3PBY67ASCRL

not attested not anchored not stored refs pending

First detection of water vapor in a pre-stellar core

Brunella Nisini, Claudio Codella, C. Malcolm Walmsley, Edwin A. Bergin, Eric Keto, Ewine F. van Dishoeck, Floris F. S. van der Tak, Lars E. Kristensen, Laurent Pagani, Mario Tafalla, Paola Caselli, Thomas Douglas, Umut A. Yildiz, Yuri Aikawa

arxiv:1208.5998 v1 · 2012-08-29 · 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{PORVWDKRTU56KHF3PBY67ASCRL}

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	2026-05-18T01:54:50.132924Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ba35b0d519d3be51cbb7871ef82428af3333fba70ad8960c354502699e61dc6

Aliases

arxiv: 1208.5998 · arxiv_version: 1208.5998v1 · doi: 10.48550/arxiv.1208.5998 · pith_short_12: PORVWDKRTU56 · pith_short_16: PORVWDKRTU56KHF3 · pith_short_8: PORVWDKR

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/PORVWDKRTU56KHF3PBY67ASCRL \
  | 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: 7ba35b0d519d3be51cbb7871ef82428af3333fba70ad8960c354502699e61dc6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9c45c85405a7b0a70ea03deb40ff990ce7977689c7d1ae38ea11b29de3a969bf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-08-29T19:25:35Z",
    "title_canon_sha256": "82776958e644083e91e4c4fd4faa41fd4e57489eea899a272ace223526b3d1a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.5998",
    "kind": "arxiv",
    "version": 1
  }
}