Pith Number

pith:CIOEBDNZ

pith:2012:CIOEBDNZ247J6HYLEELM5BLEZY

not attested not anchored not stored refs pending

Chemical Processes in Protoplanetary Disks II. On the importance of photochemistry and X-ray ionization

(2) Kyoto University, (3) Kobe University), Catherine Walsh (1), Hideko Nomura (2), T. J. Millar (1), Yuri Aikawa (3) ((1) Queen's University Belfast

arxiv:1201.2613 v1 · 2012-01-12 · astro-ph.GA · 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{CIOEBDNZ247J6HYLEELM5BLEZY}

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	2026-05-18T01:58:52.050189Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

121c408db9d73e9f1f0b2116ce8564ce05083f1ccdca824d548b733a87d473e3

Aliases

arxiv: 1201.2613 · arxiv_version: 1201.2613v1 · doi: 10.48550/arxiv.1201.2613 · pith_short_12: CIOEBDNZ247J · pith_short_16: CIOEBDNZ247J6HYL · pith_short_8: CIOEBDNZ

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/CIOEBDNZ247J6HYLEELM5BLEZY \
  | 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: 121c408db9d73e9f1f0b2116ce8564ce05083f1ccdca824d548b733a87d473e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f278ae920e281a0802c002fa435cb36170fbe1987692dbb66a1b75c9294724c",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-01-12T16:45:55Z",
    "title_canon_sha256": "09cdcdb729396c2284603b7b73408fa5bc3f8376d8b0c836279e670f182c1914"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.2613",
    "kind": "arxiv",
    "version": 1
  }
}