Pith Number

pith:4I6Z37H3

pith:2011:4I6Z37H3K4B434G472EJQFGIGM

not attested not anchored not stored refs pending

Independent determination of the systematic and random errors of the proper motions in the PPMXL catalog using quasars

Chinese Academy of Sciences), Jun Ma, Xu Zhou (National Astronomical Observatories, Zhen-Yu Wu

arxiv:1110.1153 v1 · 2011-10-06 · 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{4I6Z37H3K4B434G472EJQFGIGM}

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	2026-05-18T02:00:17.228781Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e23d9dfcfb5703cdf0dcfe889814c83320b246aaf2eab0cfc56bde80c6c615ed

Aliases

arxiv: 1110.1153 · arxiv_version: 1110.1153v1 · doi: 10.48550/arxiv.1110.1153 · pith_short_12: 4I6Z37H3K4B4 · pith_short_16: 4I6Z37H3K4B434G4 · pith_short_8: 4I6Z37H3

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/4I6Z37H3K4B434G472EJQFGIGM \
  | 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: e23d9dfcfb5703cdf0dcfe889814c83320b246aaf2eab0cfc56bde80c6c615ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "687fc432dfa8cc6451cc2f88a1c1ddb625638986413531f2623b588345c2a3be",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-10-06T04:12:52Z",
    "title_canon_sha256": "8e0b0db80ce7a898b78e2baed3a358011a47e2ac05a081d68fb873e61a993c1f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.1153",
    "kind": "arxiv",
    "version": 1
  }
}