Pith Number

pith:WIF4NKUK

pith:2017:WIF4NKUKV4R4JXV33BA5RW64YK

not attested not anchored not stored refs pending

Messier 81's Planck view vs its halo mapping

A. Amekhyan, A.A. Nucita, A.L. Kashin, A. Qadir, D. Vetrugno, F. De Paolis, G. Ingrosso, G. Yegorian, Ph. Jetzer, S. Sargsyan, V.G. Gurzadyan

arxiv:1710.04166 v1 · 2017-10-11 · 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{WIF4NKUKV4R4JXV33BA5RW64YK}

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	2026-05-18T00:24:15.885700Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b20bc6aa8aaf23c4debbd841d8dbdcc28aeb6698758bbd00c345c0db9bf8414d

Aliases

arxiv: 1710.04166 · arxiv_version: 1710.04166v1 · doi: 10.48550/arxiv.1710.04166 · pith_short_12: WIF4NKUKV4R4 · pith_short_16: WIF4NKUKV4R4JXV3 · pith_short_8: WIF4NKUK

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/WIF4NKUKV4R4JXV33BA5RW64YK \
  | 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: b20bc6aa8aaf23c4debbd841d8dbdcc28aeb6698758bbd00c345c0db9bf8414d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "85ba5680075eace3687cb18adb330de60d49d9a3626399209ea3f90f70483f3e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-10-11T16:47:07Z",
    "title_canon_sha256": "79614c75e24a6dd0d204f1cbae550dd6cf258b151804a79d2185942dbaaff0a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.04166",
    "kind": "arxiv",
    "version": 1
  }
}