Pith Number

pith:7V2GK7FW

pith:2018:7V2GK7FW75DVD2CL23USF2DZWX

not attested not anchored not stored refs pending

Tracing the atomic nitrogen abundance in star-forming regions with ammonia deuteration

Kenji Furuya, Magnus V. Persson

arxiv:1802.08494 v1 · 2018-02-23 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7V2GK7FW75DVD2CL23USF2DZWX}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T00:20:34.953561Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd74657cb6ff4751e84bd6e922e879b5e86d2b24acbcc05c4502f19c3da50e36

Aliases

arxiv: 1802.08494 · arxiv_version: 1802.08494v1 · doi: 10.48550/arxiv.1802.08494 · pith_short_12: 7V2GK7FW75DV · pith_short_16: 7V2GK7FW75DVD2CL · pith_short_8: 7V2GK7FW

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/7V2GK7FW75DVD2CL23USF2DZWX \
  | 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: fd74657cb6ff4751e84bd6e922e879b5e86d2b24acbcc05c4502f19c3da50e36

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "acfd8ee339c84a4ff0a1e280fe1148531a814768d1be67fd24bc0ed86ae6aec7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-02-23T11:57:03Z",
    "title_canon_sha256": "d6220d425c069367930cd83953f1e4acce12c22a969dff3c6269fc0650416d47"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.08494",
    "kind": "arxiv",
    "version": 1
  }
}