Pith Number

pith:ZFC3O64T

pith:2018:ZFC3O64T54XM2LX3AWIY3D3QPA

not attested not anchored not stored refs pending

Ice state evolution during spring in Richardson crater, Mars

Eric Chassefi\`ere, Fran\c{c}ois Andrieu, Fr\'ed\'eric Schmidt, Sylvain Dout\'e

arxiv:1806.07136 v1 · 2018-06-19 · 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{ZFC3O64T54XM2LX3AWIY3D3QPA}

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	2026-05-18T00:08:06.379990Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c945b77b93ef2ecd2efb05918d8f70782d61d04e0cabfda65505732c3be1bd2e

Aliases

arxiv: 1806.07136 · arxiv_version: 1806.07136v1 · doi: 10.48550/arxiv.1806.07136 · pith_short_12: ZFC3O64T54XM · pith_short_16: ZFC3O64T54XM2LX3 · pith_short_8: ZFC3O64T

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/ZFC3O64T54XM2LX3AWIY3D3QPA \
  | 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: c945b77b93ef2ecd2efb05918d8f70782d61d04e0cabfda65505732c3be1bd2e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ffef33b838a7079a8eafa43d510cfa827a5d7384a6c5891525d7908f81082755",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2018-06-19T10:02:39Z",
    "title_canon_sha256": "13b10760d697c505a5e2bdbf595418fc7cef417eba1ba443527603b81f2a5db3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.07136",
    "kind": "arxiv",
    "version": 1
  }
}