Pith Number

pith:B45SA5VC

pith:2012:B45SA5VCLKM6FT2GZLN4RKILVE

not attested not anchored not stored refs pending

Water ice in the Kuiper belt

E.L. Schaller, M.E. Brown, W.C. Fraser

arxiv:1204.3638 v1 · 2012-04-16 · 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{B45SA5VCLKM6FT2GZLN4RKILVE}

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	2026-05-18T01:57:51.779153Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f3b2076a25a99e2cf46cadbc8a90ba92890dbaaaea59bbbf4846738ccaa2f89

Aliases

arxiv: 1204.3638 · arxiv_version: 1204.3638v1 · doi: 10.48550/arxiv.1204.3638 · pith_short_12: B45SA5VCLKM6 · pith_short_16: B45SA5VCLKM6FT2G · pith_short_8: B45SA5VC

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/B45SA5VCLKM6FT2GZLN4RKILVE \
  | 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: 0f3b2076a25a99e2cf46cadbc8a90ba92890dbaaaea59bbbf4846738ccaa2f89

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "384707df86aa90fa19e932c9d9d0897dfed5bd515c767155726e23d97b0713ba",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2012-04-16T20:03:44Z",
    "title_canon_sha256": "a54a86ebe25c0e16738caf96a0846549b0840b4ef0d182a265d947377a0fdfb1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.3638",
    "kind": "arxiv",
    "version": 1
  }
}