Pith Number

pith:DG2TWPW3

pith:1998:DG2TWPW3NIWKOFOPM6CX5NN6FT

not attested not anchored not stored refs pending

VHE Gamma Rays from PKS 2155-304

G.J. Wieczorek (University of Durham), J.L. Osborne, K.E. Turver, K.J. Orford, K. Lyons, P.M. Chadwick, S.E. Shaw, S.M. Rayner, T.J.L. McComb

arxiv:astro-ph/9810209 v1 · 1998-10-14 · 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{DG2TWPW3NIWKOFOPM6CX5NN6FT}

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	2026-05-18T00:57:06.647997Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

19b53b3edb6a2ca715cf67857eb5be2cf40050a12d586a1d594d897be0afba44

Aliases

arxiv: astro-ph/9810209 · arxiv_version: astro-ph/9810209v1 · doi: 10.48550/arxiv.astro-ph/9810209 · pith_short_12: DG2TWPW3NIWK · pith_short_16: DG2TWPW3NIWKOFOP · pith_short_8: DG2TWPW3

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/DG2TWPW3NIWKOFOPM6CX5NN6FT \
  | 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: 19b53b3edb6a2ca715cf67857eb5be2cf40050a12d586a1d594d897be0afba44

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "59271c4e9e4146bde6ef9d449933e7327ecdd48a8c36cce0a05850482a4da351",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-10-14T09:22:39Z",
    "title_canon_sha256": "2b7e706df856228a41450fc18165c17f83fe37f14b37f25c6837e59d3f4aad3b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9810209",
    "kind": "arxiv",
    "version": 1
  }
}