Pith Number

pith:BWYIXUZ7

pith:2012:BWYIXUZ7ZQHQLVFFE7H2S3DD3J

not attested not anchored not stored refs pending

Axially symmetric pseudo-Newtonian hydrodynamics code

Hee Il Kim, Hyung Mok Lee, Jinho Kim, Matthew William Choptuik

arxiv:1204.3945 v1 · 2012-04-17 · astro-ph.HE · 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{BWYIXUZ7ZQHQLVFFE7H2S3DD3J}

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	2026-05-18T01:57:49.612951Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0db08bd33fcc0f05d4a527cfa96c63da4e31ed17d4ed93957b7de305cb9513ad

Aliases

arxiv: 1204.3945 · arxiv_version: 1204.3945v1 · doi: 10.48550/arxiv.1204.3945 · pith_short_12: BWYIXUZ7ZQHQ · pith_short_16: BWYIXUZ7ZQHQLVFF · pith_short_8: BWYIXUZ7

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/BWYIXUZ7ZQHQLVFFE7H2S3DD3J \
  | 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: 0db08bd33fcc0f05d4a527cfa96c63da4e31ed17d4ed93957b7de305cb9513ad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bad2702a787b77e6223ab7fb7a5a4e465ad427f8588a279c58fe383e154e52b0",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://creativecommons.org/licenses/publicdomain/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-04-17T23:54:02Z",
    "title_canon_sha256": "1591a4d3ab839bc9ebd6f7ebdd19b8cfaea525981935c613287cf0bac2e3fe0c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.3945",
    "kind": "arxiv",
    "version": 1
  }
}