Pith Number

pith:S3DERBCK

pith:2026:S3DERBCKUNGDG3YYABPT6RCEVU

not attested not anchored not stored refs pending

TombWriter: Scaffolding Story Archeology through Beat-Level Interaction in Human-AI Co-Writing

Hugo Andersson, Niklas Elmqvist

arxiv:2605.19681 v1 · 2026-05-19 · cs.HC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{S3DERBCKUNGDG3YYABPT6RCEVU}

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	2026-05-20T01:05:57.533646Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

96c648844aa34c336f18005f3f4444ad01aa5da1a417147a5d871acd78e65af3

Aliases

arxiv: 2605.19681 · arxiv_version: 2605.19681v1 · doi: 10.48550/arxiv.2605.19681 · pith_short_12: S3DERBCKUNGD · pith_short_16: S3DERBCKUNGDG3YY · pith_short_8: S3DERBCK

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/S3DERBCKUNGDG3YYABPT6RCEVU \
  | 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: 96c648844aa34c336f18005f3f4444ad01aa5da1a417147a5d871acd78e65af3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ef7df502ff07c4d5f481f809ab02c8bf8bff2561fa33d10eed22114a15f19d1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.HC",
    "submitted_at": "2026-05-19T11:12:48Z",
    "title_canon_sha256": "2efb705e236568e6923d0be14798a0d936f0d76d78e5a9ac172c3225fa6cf820"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.19681",
    "kind": "arxiv",
    "version": 1
  }
}