Pith Number

pith:WTWN2JJD

pith:2009:WTWN2JJDOENEQOTCVZIXIL6FUB

not attested not anchored not stored refs pending

Decaying dark matter in Draco

Signe Riemer-Sorensen, Steen H. Hansen

arxiv:0901.2569 v2 · 2009-01-16 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WTWN2JJDOENEQOTCVZIXIL6FUB}

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	2026-07-04T15:42:33.619983Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4ecdd2523711a483a62ae51742fc5a04eb1d07db50ad179c930b92d1976c583

Aliases

arxiv: 0901.2569 · arxiv_version: 0901.2569v2 · doi: 10.48550/arxiv.0901.2569 · pith_short_12: WTWN2JJDOENE · pith_short_16: WTWN2JJDOENEQOTC · pith_short_8: WTWN2JJD

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/WTWN2JJDOENEQOTCVZIXIL6FUB \
  | 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: b4ecdd2523711a483a62ae51742fc5a04eb1d07db50ad179c930b92d1976c583

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8e6885ffd6945cbf89a848e61cdd2aa5e356a6280743042e7b03f774a1df0b82",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-01-16T21:00:08Z",
    "title_canon_sha256": "9040b68895d51c500464aba4805f1c42a54143c3a60068a66e32d3c037ed2ecc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.2569",
    "kind": "arxiv",
    "version": 2
  }
}