Pith Number

pith:EM2KZR5R

pith:1999:EM2KZR5RQNWS4WLZ6JXOJJ4H3R

not attested not anchored not stored refs pending

Riemann Solvers in General Relativistic Hydrodynamics

(2) MPA Garching), J.A. Font (2), J.A. Miralles (1), J.A. Pons (1) ((1) Valencia, J.M. Ibanez (1), J.M. Marti (1), M.A. Aloy (1)

arxiv:astro-ph/9911034 v1 · 1999-11-03 · astro-ph · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EM2KZR5RQNWS4WLZ6JXOJJ4H3R}

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	2026-07-04T14:17:17.164170Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2334acc7b1836d2e5979f26ee4a787dc4a00f1461fa3072fa101b6dcf82a7954

Aliases

arxiv: astro-ph/9911034 · arxiv_version: astro-ph/9911034v1 · doi: 10.48550/arxiv.astro-ph/9911034 · pith_short_12: EM2KZR5RQNWS · pith_short_16: EM2KZR5RQNWS4WLZ · pith_short_8: EM2KZR5R

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/EM2KZR5RQNWS4WLZ6JXOJJ4H3R \
  | 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: 2334acc7b1836d2e5979f26ee4a787dc4a00f1461fa3072fa101b6dcf82a7954

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3bbc85caa4f22609d50804e473af514a22785d6ec43140222d85da9470bce181",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-11-03T13:13:11Z",
    "title_canon_sha256": "579bd8f716b8cccd12a9466e2a6b0483e720f9d7adfaf4af5c90c80bc87f6b27"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9911034",
    "kind": "arxiv",
    "version": 1
  }
}