Pith Number

pith:Z6PHOG7R

pith:1999:Z6PHOG7RBOQ3FTHCNCDEMW7JDK

not attested not anchored not stored refs pending

Particle acceleration at oblique shocks and discontinuities of the density profile

(2) Max-Planck-Institut fuer Kernphysik, (3) Sterrenkundig Instituut Utrecht, A. Achterberg (3) ((1) University of Minnesota, Germany, Heidelberg, J.G. Kirk (2), Minneapolis, Netherlands), U.D.J. Gieseler (1), U.S.A., Y.A. Gallant (3)

arxiv:astro-ph/9902079 v1 · 1999-02-04 · 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{Z6PHOG7RBOQ3FTHCNCDEMW7JDK}

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	2026-05-18T04:21:32.435527Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf9e771bf10ba1b2cce26886465be91a8f6510b971940740f1e262fea27c8a5e

Aliases

arxiv: astro-ph/9902079 · arxiv_version: astro-ph/9902079v1 · doi: 10.48550/arxiv.astro-ph/9902079 · pith_short_12: Z6PHOG7RBOQ3 · pith_short_16: Z6PHOG7RBOQ3FTHC · pith_short_8: Z6PHOG7R

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/Z6PHOG7RBOQ3FTHCNCDEMW7JDK \
  | 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: cf9e771bf10ba1b2cce26886465be91a8f6510b971940740f1e262fea27c8a5e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e10960c929b9d16aa9c826e54d939a656df4f6bf156193ecf48ca25e3ba9ae7",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-02-04T17:42:28Z",
    "title_canon_sha256": "86317d27e6fab9d097cdb80223a5c874db08175c058a013a29619d4b220c8017"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9902079",
    "kind": "arxiv",
    "version": 1
  }
}