Pith Number

pith:YPMQKQOC

pith:2009:YPMQKQOCBRYOGR56CMB6LQ6CEV

not attested not anchored not stored refs pending

Astrochemistry and Astrophotonics for an Antarctic Observatory

(2) Universit\"at Potsdam), Andreas Kelz (1), Hans-Gerd L\"ohmannsr\"oben (2), Martin M. Roth (1), Michael Kumke (2) ((1) Astrophysikalisches Institut Potsdam

arxiv:0912.4372 v1 · 2009-12-22 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YPMQKQOCBRYOGR56CMB6LQ6CEV}

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	2026-05-18T02:10:14.688806Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c3d90541c20c70e347be1303e5c3c22574275c8506181bd9175df7d530b3bebd

Aliases

arxiv: 0912.4372 · arxiv_version: 0912.4372v1 · doi: 10.48550/arxiv.0912.4372 · pith_short_12: YPMQKQOCBRYO · pith_short_16: YPMQKQOCBRYOGR56 · pith_short_8: YPMQKQOC

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/YPMQKQOCBRYOGR56CMB6LQ6CEV \
  | 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: c3d90541c20c70e347be1303e5c3c22574275c8506181bd9175df7d530b3bebd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ada6b194ed14dc7ab856f911b730dd24d210e42167c009462094e595afbec70c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2009-12-22T11:17:37Z",
    "title_canon_sha256": "051aa4c6d76b6a7318bd9dfa5847a089cc2424e7617d277a6164124a952b6211"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.4372",
    "kind": "arxiv",
    "version": 1
  }
}