Pith Number

pith:4AJA2U2V

pith:2013:4AJA2U2VQMNDWMLOTDK5KKAM2J

not attested not anchored not stored refs pending

Periodicity in Class II methanol masers in high mass star forming regions

D.J. van der Walt, J.P. Maswanganye, M.J. Gaylard, S. Goedhart

arxiv:1311.1615 v1 · 2013-11-07 · 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{4AJA2U2VQMNDWMLOTDK5KKAM2J}

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	2026-05-18T03:07:43.761834Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0120d5355831a3b316e98d5d5280cd249969a12e33596307315f38227693e9a

Aliases

arxiv: 1311.1615 · arxiv_version: 1311.1615v1 · doi: 10.48550/arxiv.1311.1615 · pith_short_12: 4AJA2U2VQMND · pith_short_16: 4AJA2U2VQMNDWMLO · pith_short_8: 4AJA2U2V

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/4AJA2U2VQMNDWMLOTDK5KKAM2J \
  | 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: e0120d5355831a3b316e98d5d5280cd249969a12e33596307315f38227693e9a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "93f240703dfac1457d4e1f29855d6e3ec92f3960102df091ad7fdd0a860a1bb8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-11-07T09:20:15Z",
    "title_canon_sha256": "14551bfbf13fb89bf8002ada419514ad8f9379cd61cebe8c6927a7425ddcb037"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.1615",
    "kind": "arxiv",
    "version": 1
  }
}