Pith Number

pith:OERTPA5Q

pith:2013:OERTPA5Q2WLGWJPPKWC7REO7W7

not attested not anchored not stored refs pending

Investigation of dust properties of the proto-planetary nebula IRAS 18276-1431

H. Izumiura, K. Murakawa, L. T. Maud, R. D. Oudmaijer

arxiv:1301.6480 v1 · 2013-01-28 · 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{OERTPA5Q2WLGWJPPKWC7REO7W7}

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	2026-05-18T01:51:58.017429Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

71233783b0d5966b25ef5585f891dfb7e8739fe4eb8d2445cbaa62769cf3f494

Aliases

arxiv: 1301.6480 · arxiv_version: 1301.6480v1 · doi: 10.48550/arxiv.1301.6480 · pith_short_12: OERTPA5Q2WLG · pith_short_16: OERTPA5Q2WLGWJPP · pith_short_8: OERTPA5Q

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/OERTPA5Q2WLGWJPPKWC7REO7W7 \
  | 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: 71233783b0d5966b25ef5585f891dfb7e8739fe4eb8d2445cbaa62769cf3f494

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1077f678d638a6eb1e8978a8acdb77d642e682217cba14971ed3f71ff58b861e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-01-28T09:12:15Z",
    "title_canon_sha256": "542e28b5d22dae73e114313413cda157afa9ff099056ccefb45400d3c676335a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.6480",
    "kind": "arxiv",
    "version": 1
  }
}