Pith Number

pith:EC2JRDRC

pith:2008:EC2JRDRCRNK72DPJ42ICDWRTYN

not attested not anchored not stored refs pending

Shock Waves in Plane Symmetric Spacetimes

Alan D. Rendall, Fredrik St{\aa}hl

arxiv:0806.1597 v1 · 2008-06-10 · 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{EC2JRDRCRNK72DPJ42ICDWRTYN}

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	2026-07-04T15:12:06.376913Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

20b4988e228b55fd0de9e69021da33c3676838dcb1b2b5c6b4ee15b3dd99048d

Aliases

arxiv: 0806.1597 · arxiv_version: 0806.1597v1 · doi: 10.48550/arxiv.0806.1597 · pith_short_12: EC2JRDRCRNK7 · pith_short_16: EC2JRDRCRNK72DPJ · pith_short_8: EC2JRDRC

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/EC2JRDRCRNK72DPJ42ICDWRTYN \
  | 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: 20b4988e228b55fd0de9e69021da33c3676838dcb1b2b5c6b4ee15b3dd99048d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "65d3f2eeb6d471b5de1656456980d145f505dae24640a83f8559d23dfc8cd662",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2008-06-10T08:37:42Z",
    "title_canon_sha256": "bd995beffdd775e62c8b55435993b499db53c64df6e4ffa02d52237c0fce8021"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0806.1597",
    "kind": "arxiv",
    "version": 1
  }
}