Pith Number

pith:4W3DMCMR

pith:2018:4W3DMCMR5KVWE7L3DUZPRNGEAQ

not attested not anchored not stored refs pending

Properties of dust in the detached shells around U Ant, DR Ser, and V644 Sco

E. De Beck, M. Brunner, M. Maercker, M. Mecina, O. Jaldehag, T. Khouri Silva

arxiv:1807.11305 v2 · 2018-07-30 · astro-ph.SR · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4W3DMCMR5KVWE7L3DUZPRNGEAQ}

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	2026-05-17T23:59:06.028723Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5b6360991eaab627d7b1d32f8b4c4040a223fbe0ad1933b1010b723d367cc5a

Aliases

arxiv: 1807.11305 · arxiv_version: 1807.11305v2 · doi: 10.48550/arxiv.1807.11305 · pith_short_12: 4W3DMCMR5KVW · pith_short_16: 4W3DMCMR5KVWE7L3 · pith_short_8: 4W3DMCMR

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/4W3DMCMR5KVWE7L3DUZPRNGEAQ \
  | 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: e5b6360991eaab627d7b1d32f8b4c4040a223fbe0ad1933b1010b723d367cc5a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "99d668c0d4917d217e656eb0bc7fbde2bc948a9be14fc12f9102d78955f30cb8",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-07-30T12:09:39Z",
    "title_canon_sha256": "67fb4d11f7182ef6d05b7d15d72526d1ecc472eef16c1008e8d13b2dddc97bd9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.11305",
    "kind": "arxiv",
    "version": 2
  }
}