Pith Number

pith:R3OYQYF4

pith:2011:R3OYQYF4G7U2DCXWAFKNORRRSE

not attested not anchored not stored refs pending

The immediate environment of the Class 0 protostar VLA1623, on scales of ~50-100 AU, observed at millimetre and centimetre wavelengths

(2) St Andrews University, (3) CEA Saclay, D. Ward-Thompson (1), France), J.M. Kirk (1), J.S. Greaves (2), P. Andr\'e (3) ((1) Cardiff University, Scotland, Wales

arxiv:1104.2170 v1 · 2011-04-12 · 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{R3OYQYF4G7U2DCXWAFKNORRRSE}

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	2026-05-18T02:02:34.880798Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8edd8860bc37e9a18af60154d74631912fdb696a4bd33d9f520ce6d2ad185c01

Aliases

arxiv: 1104.2170 · arxiv_version: 1104.2170v1 · doi: 10.48550/arxiv.1104.2170 · pith_short_12: R3OYQYF4G7U2 · pith_short_16: R3OYQYF4G7U2DCXW · pith_short_8: R3OYQYF4

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/R3OYQYF4G7U2DCXWAFKNORRRSE \
  | 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: 8edd8860bc37e9a18af60154d74631912fdb696a4bd33d9f520ce6d2ad185c01

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "25b706009bb0669e66e37c9a7fea871326f8a728ce9858e2bcdf61256b3410e8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-04-12T11:14:39Z",
    "title_canon_sha256": "74028e691ce5f80ee2682d318cc78c802a3cfde3e2875909a509415ffb2af0e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.2170",
    "kind": "arxiv",
    "version": 1
  }
}