Pith Number

pith:4ZUHEHDS

pith:2018:4ZUHEHDSTUGECORW7N2WNIZ2ME

not attested not anchored not stored refs pending

PSR J0636+5128: A Heated Companion in a Tight Orbit

Paul Draghis, Roger W. Romani

arxiv:1807.04249 v1 · 2018-07-11 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4ZUHEHDSTUGECORW7N2WNIZ2ME}

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	2026-05-18T00:08:38.177133Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e668721c729d0c413a36fb7566a33a611599fc345e1a63fd76400398adaf4f28

Aliases

arxiv: 1807.04249 · arxiv_version: 1807.04249v1 · doi: 10.48550/arxiv.1807.04249 · pith_short_12: 4ZUHEHDSTUGE · pith_short_16: 4ZUHEHDSTUGECORW · pith_short_8: 4ZUHEHDS

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/4ZUHEHDSTUGECORW7N2WNIZ2ME \
  | 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: e668721c729d0c413a36fb7566a33a611599fc345e1a63fd76400398adaf4f28

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2be9d4146427a4e603e3c8a3424e914a10ef4b6ab5b6487b869d2cdd4266e64f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-07-11T17:13:57Z",
    "title_canon_sha256": "49a688aa7e84b491262e50db045b421d04c3548f6633190204f9cbc2db181660"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.04249",
    "kind": "arxiv",
    "version": 1
  }
}