Pith Number

pith:2KUR5EDY

pith:2008:2KUR5EDYE2LXMQ22I2NZNB3THS

not attested not anchored not stored refs pending

A deep X-ray observation of M82 with XMM-Newton

Andrea Comastri, Livia Origlia, Piero Ranalli, Roberto Maiolino

arxiv:0802.2943 v1 · 2008-02-20 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2KUR5EDYE2LXMQ22I2NZNB3THS}

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.

Cited by

1 paper in Pith

A three-dimensional map of the hot Local Bubble using diffuse interstellar bands

Receipt and verification

First computed	2026-07-04T15:11:20.368291Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d2a91e9078269776435a469b9687733c98b98d0b55a3959a33319c37afae9d2b

Aliases

arxiv: 0802.2943 · arxiv_version: 0802.2943v1 · doi: 10.48550/arxiv.0802.2943 · pith_short_12: 2KUR5EDYE2LX · pith_short_16: 2KUR5EDYE2LXMQ22 · pith_short_8: 2KUR5EDY

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/2KUR5EDYE2LXMQ22I2NZNB3THS \
  | 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: d2a91e9078269776435a469b9687733c98b98d0b55a3959a33319c37afae9d2b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0a286f6afacc44dd714317dca41ea27f2cbc8e78b4c8ff7b4103dbcbd2bff87a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-02-20T21:11:54Z",
    "title_canon_sha256": "0c7dfe787996367f6188eff5afa1483ba6a35c1c052fbd68a59496801172cd15"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0802.2943",
    "kind": "arxiv",
    "version": 1
  }
}