Pith Number

pith:S3LQPTMI

pith:2010:S3LQPTMIVDIPNZCMSU754I5MVT

not attested not anchored not stored refs pending

A new z=0 metagalactic UV background limit

Gary J. Hill, Joshua J. Adams, Juan M. Uson, Phillip J. MacQueen

arxiv:1012.3188 v1 · 2010-12-14 · 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{S3LQPTMIVDIPNZCMSU754I5MVT}

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	2026-05-18T02:04:24.735573Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

96d707cd88a8d0f6e44c953fde23acacc7bf5efbaed94330928ade4bb8859a28

Aliases

arxiv: 1012.3188 · arxiv_version: 1012.3188v1 · doi: 10.48550/arxiv.1012.3188 · pith_short_12: S3LQPTMIVDIP · pith_short_16: S3LQPTMIVDIPNZCM · pith_short_8: S3LQPTMI

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/S3LQPTMIVDIPNZCMSU754I5MVT \
  | 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: 96d707cd88a8d0f6e44c953fde23acacc7bf5efbaed94330928ade4bb8859a28

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1a52d9bf97ec7c4e2396c822af3b380bf8495940a83d04d02bb8afadbb6da97",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-12-14T22:29:34Z",
    "title_canon_sha256": "4b8541343af4cbe36eb2d42196916c2a744d8d22884305086919807867224490"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.3188",
    "kind": "arxiv",
    "version": 1
  }
}