Pith Number

pith:3VKDA3A6

pith:2001:3VKDA3A63EGVVC5IWCZ2UYTXGP

not attested not anchored not stored refs pending

Analog gravity from field theory normal modes?

Carlos Barcelo (Washington University in Saint Louis) Stefano Liberati (University of Maryland), Matt Visser (Washington University in Saint Louis)

arxiv:gr-qc/0104001 v1 · 2001-04-02 · gr-qc · 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{3VKDA3A63EGVVC5IWCZ2UYTXGP}

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	2026-05-18T02:37:36.135273Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd54306c1ed90d5a8ba8b0b3aa627733f78443bc88187a45f2e3678ab7b73838

Aliases

arxiv: gr-qc/0104001 · arxiv_version: gr-qc/0104001v1 · doi: 10.48550/arxiv.gr-qc/0104001 · pith_short_12: 3VKDA3A63EGV · pith_short_16: 3VKDA3A63EGVVC5I · pith_short_8: 3VKDA3A6

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/3VKDA3A63EGVVC5IWCZ2UYTXGP \
  | 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: dd54306c1ed90d5a8ba8b0b3aa627733f78443bc88187a45f2e3678ab7b73838

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ead64a1fdd97ef0043bbf29124033a67ca74192cc658a7e93325452c36e3e4bf",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2001-04-02T20:45:27Z",
    "title_canon_sha256": "11aca7f2573adbcc3c4dd6ad4000c84b0d0acc577bbc21aa8b078244b8b9f96e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0104001",
    "kind": "arxiv",
    "version": 1
  }
}