Pith Number

pith:ZQAMRQI5

pith:2011:ZQAMRQI5VUU6VKE3NRVAWHCKB4

not attested not anchored not stored refs pending

On the Hamiltonian formulation of incompressible ideal fluids and magnetohydrodynamics via Dirac's theory of constraints

Cristel Chandre (CPT), Emanuele Tassi (CPT), Philip J. Morrison (IFS)

arxiv:1110.6891 v1 · 2011-10-31 · physics.plasm-ph · nlin.CD · physics.flu-dyn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZQAMRQI5VUU6VKE3NRVAWHCKB4}

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	2026-05-18T01:59:49.456542Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc00c8c11dad29eaa89b6c6a0b1c4a0f0ebb80a8565a98258b226a187d251207

Aliases

arxiv: 1110.6891 · arxiv_version: 1110.6891v1 · doi: 10.48550/arxiv.1110.6891 · pith_short_12: ZQAMRQI5VUU6 · pith_short_16: ZQAMRQI5VUU6VKE3 · pith_short_8: ZQAMRQI5

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/ZQAMRQI5VUU6VKE3NRVAWHCKB4 \
  | 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: cc00c8c11dad29eaa89b6c6a0b1c4a0f0ebb80a8565a98258b226a187d251207

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a92ed059bd486c81737f24cb23cba0be427b75143b194ee274d12d371ebdff98",
    "cross_cats_sorted": [
      "nlin.CD",
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.plasm-ph",
    "submitted_at": "2011-10-31T18:38:29Z",
    "title_canon_sha256": "c86e9a20cde0da3cfe990615d6367880ad512c165d6a688640cb25bf45f7a8fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.6891",
    "kind": "arxiv",
    "version": 1
  }
}