Pith Number

pith:DOBH4HAF

pith:2008:DOBH4HAFNWBHWJWNLJQK6BEZSJ

not attested not anchored not stored refs pending

Simplifying the algebra of first class constraints, examples on SO(3) and SO(4)

A. Shirzad, M. Dehghani

arxiv:0811.0917 v3 · 2008-11-06 · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DOBH4HAFNWBHWJWNLJQK6BEZSJ}

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	2026-05-18T02:59:18.917806Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1b827e1c056d827b26cd5a60af04999266a41f2ca9809d3dbe8098f5368e7198

Aliases

arxiv: 0811.0917 · arxiv_version: 0811.0917v3 · doi: 10.48550/arxiv.0811.0917 · pith_short_12: DOBH4HAFNWBH · pith_short_16: DOBH4HAFNWBHWJWN · pith_short_8: DOBH4HAF

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/DOBH4HAFNWBHWJWNLJQK6BEZSJ \
  | 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: 1b827e1c056d827b26cd5a60af04999266a41f2ca9809d3dbe8098f5368e7198

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bee0047e3b771df2c4a399f7a15254b7db1123a0ede2883d0c62ce3856d8cff3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2008-11-06T10:51:18Z",
    "title_canon_sha256": "cac3a488fb96495f58c9fec6f9cb0d766ca79baf4c37509a3561025037efdc3e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0811.0917",
    "kind": "arxiv",
    "version": 3
  }
}