Pith Number

pith:EDUJIZDL

pith:2021:EDUJIZDLWU264SFSICGGVSCZTT

not attested not anchored not stored refs pending

Hawking-Ellis classification of stress-energy: test-fields versus back-reaction

Matt Visser (Victoria University of Wellington), Prado Martin-Moruno (Complutense de Madrid)

arxiv:2102.13551 v2 · 2021-02-26 · 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{EDUJIZDLWU264SFSICGGVSCZTT}

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.

Cited by

2 papers in Pith

Covariant virtual work and the d'Alembert-Lagrange formulation of general relativity

Observer-robust energy condition verification for warp drive spacetimes

Receipt and verification

First computed	2026-07-05T02:47:32.146783Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

20e894646bb535ee48b2408c6ac8599ceedc4322f249d8a14803e088f7a69920

Aliases

arxiv: 2102.13551 · arxiv_version: 2102.13551v2 · doi: 10.48550/arxiv.2102.13551 · pith_short_12: EDUJIZDLWU26 · pith_short_16: EDUJIZDLWU264SFS · pith_short_8: EDUJIZDL

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/EDUJIZDLWU264SFSICGGVSCZTT \
  | 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: 20e894646bb535ee48b2408c6ac8599ceedc4322f249d8a14803e088f7a69920

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf78d233adcca37d35d4a76868aff57ab36fd1b84c4702c2c33b2de512433f19",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2021-02-26T15:42:49Z",
    "title_canon_sha256": "ea5b119709eaac9e108be768d2f254d5d7580b7640383fa62bb69672749f0732"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.13551",
    "kind": "arxiv",
    "version": 2
  }
}