Pith Number

pith:53QZ2XGC

pith:2010:53QZ2XGC77U7KHNEZHPQK5OEGL

not attested not anchored not stored refs pending

Ultra deep AKARI observations of Abell 2218: resolving the 15 um extragalactic background light

C. Pearson, E. Egami, H. Matsuhara, H. M. Lee, I. Smail, J. Ko, J.-P. Kneib, M. G. Lee, M. Im, M. Negrello, R. Hopwood, S. Serjeant, T. Nakagawa, T. Takagi

arxiv:1005.1069 v2 · 2010-05-06 · 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{53QZ2XGC77U7KHNEZHPQK5OEGL}

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	2026-07-04T17:30:12.085069Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eee19d5cc2ffe9f51da4c9df0575c432e92f897eb89b1e792ccd9a5c40c39f06

Aliases

arxiv: 1005.1069 · arxiv_version: 1005.1069v2 · doi: 10.48550/arxiv.1005.1069 · pith_short_12: 53QZ2XGC77U7 · pith_short_16: 53QZ2XGC77U7KHNE · pith_short_8: 53QZ2XGC

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/53QZ2XGC77U7KHNEZHPQK5OEGL \
  | 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: eee19d5cc2ffe9f51da4c9df0575c432e92f897eb89b1e792ccd9a5c40c39f06

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e0a5357d0a0e8f26bd73f627fe1650bd965da37c33ed7033412df21d146642ce",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-05-06T20:00:03Z",
    "title_canon_sha256": "4817b5d7137cafdca0714019a9176a955cc08ab0b08d82b4fd830feaf44866bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.1069",
    "kind": "arxiv",
    "version": 2
  }
}