Pith Number

pith:G3OYQCRZ

pith:2022:G3OYQCRZWO42W4DFPU6R2U4ADL

not attested not anchored not stored refs pending

The physical and chemical processes in protoplanetary disks: constraints on the composition of comets

Klaus Pontoppidan, Satoshi Okuzumi, Yuri Aikawa

arxiv:2212.14529 v4 · 2022-12-30 · astro-ph.EP · 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{G3OYQCRZWO42W4DFPU6R2U4ADL}

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	2026-07-05T09:30:01.774935Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

36dd880a39b3b9ab70657d3d1d53801aee33545584d42e636ca041a974b9ea1e

Aliases

arxiv: 2212.14529 · arxiv_version: 2212.14529v4 · doi: 10.48550/arxiv.2212.14529 · pith_short_12: G3OYQCRZWO42 · pith_short_16: G3OYQCRZWO42W4DF · pith_short_8: G3OYQCRZ

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/G3OYQCRZWO42W4DFPU6R2U4ADL \
  | 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: 36dd880a39b3b9ab70657d3d1d53801aee33545584d42e636ca041a974b9ea1e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a28a6e88477de360e0e4808d40291f73b89e319ad51dc93667d7233f8004d993",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2022-12-30T03:05:03Z",
    "title_canon_sha256": "5bbb5ebb99244d404aecc4a399d165786c85aca0090ab7f24cb05bdacbccba6f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2212.14529",
    "kind": "arxiv",
    "version": 4
  }
}