Pith Number

pith:PGWXI76Y

pith:1999:PGWXI76YRWZMFRT3OL5BZA3JIJ

not attested not anchored not stored refs pending

UN/ESA Workshops on Basic Space Science: An Update on Their Achievements

H. J. Haubold

arxiv:physics/9910042 v1 · 1999-10-27 · physics.space-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PGWXI76YRWZMFRT3OL5BZA3JIJ}

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	2026-05-18T01:38:04.050674Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

79ad747fd88db2c2c67b72fa1c83694251fc7414dc01dd32c58f9d473878b1d1

Aliases

arxiv: physics/9910042 · arxiv_version: physics/9910042v1 · doi: 10.48550/arxiv.physics/9910042 · pith_short_12: PGWXI76YRWZM · pith_short_16: PGWXI76YRWZMFRT3 · pith_short_8: PGWXI76Y

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/PGWXI76YRWZMFRT3OL5BZA3JIJ \
  | 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: 79ad747fd88db2c2c67b72fa1c83694251fc7414dc01dd32c58f9d473878b1d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9bcce807f0d1ed2ea201c2ffb8b3fefce2c4d0ba3dbc7f9dfdd16806fbd111fd",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "physics.space-ph",
    "submitted_at": "1999-10-27T08:44:43Z",
    "title_canon_sha256": "af55d52db07f0bb9833a3e6ae71e4653add668d227eb8b6c21944b3a38504a5e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/9910042",
    "kind": "arxiv",
    "version": 1
  }
}