Pith Number

pith:W2JZQORY

pith:2014:W2JZQORYUXWM5E5322H4XHLOV2

not attested not anchored not stored refs pending

On the colour of the dark side of the Moon

Ahmad Darudi, Ana Ulla, Chris Flynn, Hans Gleisner, Henriette Schwarz, Mette Owner-Petersen, Peter Thejll, Torben Andersen

arxiv:1401.1994 v1 · 2014-01-09 · astro-ph.EP · 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{W2JZQORYUXWM5E5322H4XHLOV2}

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	2026-05-18T02:57:07.689796Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b693983a38a5ecce93bbd68fcb9d6eaeb829abf854638da512ae008fe9446dc2

Aliases

arxiv: 1401.1994 · arxiv_version: 1401.1994v1 · doi: 10.48550/arxiv.1401.1994 · pith_short_12: W2JZQORYUXWM · pith_short_16: W2JZQORYUXWM5E53 · pith_short_8: W2JZQORY

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/W2JZQORYUXWM5E5322H4XHLOV2 \
  | 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: b693983a38a5ecce93bbd68fcb9d6eaeb829abf854638da512ae008fe9446dc2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "785a0cc241c9a0acf693ff67b37106799cd0538bf8fd9324cd255c21deb8f8e5",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2014-01-09T13:21:45Z",
    "title_canon_sha256": "fc46e2aa55d19342a0564d0ec6e5f767afd3675467e1a0bb4816d04880fb47bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.1994",
    "kind": "arxiv",
    "version": 1
  }
}