Pith Number

pith:U4PEY2VW

pith:2012:U4PEY2VWG2LY7X5X6VCBMMUPH6

not attested not anchored not stored refs pending

The United Nations Human Space Technology Initiative (HSTI)

A. Niu, H. Haubold, I. Dietlein, M. Ochiai, T. Doi, W. Balogh

arxiv:1201.2078 v1 · 2012-01-09 · 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{U4PEY2VWG2LY7X5X6VCBMMUPH6}

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	2026-05-18T02:43:00.983500Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a71e4c6ab636978fdfb7f54416328f3f8f24f00c9a75837084ab657e5052b176

Aliases

arxiv: 1201.2078 · arxiv_version: 1201.2078v1 · doi: 10.48550/arxiv.1201.2078 · pith_short_12: U4PEY2VWG2LY · pith_short_16: U4PEY2VWG2LY7X5X · pith_short_8: U4PEY2VW

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/U4PEY2VWG2LY7X5X6VCBMMUPH6 \
  | 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: a71e4c6ab636978fdfb7f54416328f3f8f24f00c9a75837084ab657e5052b176

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "368d0076de996f28a35feaeedbe00292006e84a4f13ce761dc6b54dff503c9f1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.space-ph",
    "submitted_at": "2012-01-09T13:29:25Z",
    "title_canon_sha256": "0bfea87d09c25824efb818dad4cd2afac822b14e4475e1e565c09d88530144ce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.2078",
    "kind": "arxiv",
    "version": 1
  }
}