Pith Number

pith:NAN4FHZ5

pith:2012:NAN4FHZ57CDJ5VE5J6K3LANJ5F

not attested not anchored not stored refs pending

Observations of a high-mass protostar in NGC 7538S

Goran Sandell, Jun-Hui Zhao, Lei Zhu, Melvyn Wright, Stuartt Corder, W. M. Goss

arxiv:1201.0944 v1 · 2012-01-04 · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NAN4FHZ57CDJ5VE5J6K3LANJ5F}

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	2026-05-18T01:58:57.805825Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

681bc29f3df8869ed49d4f95b581a9e956800508c36580dd0bf2d4dd74f681c7

Aliases

arxiv: 1201.0944 · arxiv_version: 1201.0944v1 · doi: 10.48550/arxiv.1201.0944 · pith_short_12: NAN4FHZ57CDJ · pith_short_16: NAN4FHZ57CDJ5VE5 · pith_short_8: NAN4FHZ5

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/NAN4FHZ57CDJ5VE5J6K3LANJ5F \
  | 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: 681bc29f3df8869ed49d4f95b581a9e956800508c36580dd0bf2d4dd74f681c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e2789f010ee3e9a5a5094bc04c50884f915f063d2f252fa5dc21dd587ddfa28",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-01-04T17:47:26Z",
    "title_canon_sha256": "df2725965b9407055b41c2051acd841a348007d196c8da57aee009e332a10abc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.0944",
    "kind": "arxiv",
    "version": 1
  }
}