Pith Number

pith:E4TJWDMH

pith:2013:E4TJWDMHU5UDLCMNZHP5GWGIN3

not attested not anchored not stored refs pending

Testing protoplanetary disc dispersal with radio emission

Anna M. M. Scaife, Barbara Ercolano, James E. Owen

arxiv:1307.2240 v2 · 2013-07-08 · astro-ph.SR · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E4TJWDMHU5UDLCMNZHP5GWGIN3}

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	2026-05-18T01:48:58.565037Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

27269b0d87a76835898dc9dfd358c86ee663425a5e408705dcddf9908123b928

Aliases

arxiv: 1307.2240 · arxiv_version: 1307.2240v2 · doi: 10.48550/arxiv.1307.2240 · pith_short_12: E4TJWDMHU5UD · pith_short_16: E4TJWDMHU5UDLCMN · pith_short_8: E4TJWDMH

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/E4TJWDMHU5UDLCMNZHP5GWGIN3 \
  | 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: 27269b0d87a76835898dc9dfd358c86ee663425a5e408705dcddf9908123b928

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "491c95c69ffdd64f07abd563a82aacee37cd442ba4d1561054d6207371d423c5",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-07-08T20:00:03Z",
    "title_canon_sha256": "5e3af1a594b3b7715bd58da72132037a722c2ed1642a376ad7104e75ab4d423d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.2240",
    "kind": "arxiv",
    "version": 2
  }
}