Pith Number

pith:EWI4OBWB

pith:2018:EWI4OBWBDOWMYSALCVXC5AD4CW

not attested not anchored not stored refs pending

Abrupt climate transition of icy worlds from snowball to moist or runaway greenhouse

Feng Ding, Jun Yang, Ramses M. Ramirez, W. R. Peltier, Yonggang Liu, Yongyun Hu

arxiv:1809.01418 v1 · 2018-09-05 · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EWI4OBWBDOWMYSALCVXC5AD4CW}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T00:06:00.727904Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2591c706c11baccc480b156e2e807c15ba70036db10fc0ac38a5757cc0b07b17

Aliases

arxiv: 1809.01418 · arxiv_version: 1809.01418v1 · doi: 10.48550/arxiv.1809.01418 · pith_short_12: EWI4OBWBDOWM · pith_short_16: EWI4OBWBDOWMYSAL · pith_short_8: EWI4OBWB

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/EWI4OBWBDOWMYSALCVXC5AD4CW \
  | 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: 2591c706c11baccc480b156e2e807c15ba70036db10fc0ac38a5757cc0b07b17

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "24923f56fcd6f957026068f51894bac1e3548fcf40c6f1f12d2d2d92bf1680e4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2018-09-05T10:07:52Z",
    "title_canon_sha256": "93dc196f60681edf28b6c8a0d55db0d8e06ebaeb901531b10b7b646eb9b2b5f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.01418",
    "kind": "arxiv",
    "version": 1
  }
}