Pith Number

pith:UP35RQTG

pith:2026:UP35RQTGD4HENHV25XBV64M55L

not attested not anchored not stored refs pending

User as Engram: Internalizing Per-User Memory as Local Parametric Edits

Bojie Li

arxiv:2606.19172 v1 · 2026-06-17 · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UP35RQTGD4HENHV25XBV64M55L}

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	2026-06-19T16:11:58.562842Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3f7d8c2661f0e469ebaedc35f719deaea7699845fc1c1b002831d5fb343cf24

Aliases

arxiv: 2606.19172 · arxiv_version: 2606.19172v1 · doi: 10.48550/arxiv.2606.19172 · pith_short_12: UP35RQTGD4HE · pith_short_16: UP35RQTGD4HENHV2 · pith_short_8: UP35RQTG

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/UP35RQTGD4HENHV25XBV64M55L \
  | 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: a3f7d8c2661f0e469ebaedc35f719deaea7699845fc1c1b002831d5fb343cf24

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "935f95d49e31d092f346259fed91b7afe5768e18529fb576c6d31901395cdc38",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-06-17T15:15:19Z",
    "title_canon_sha256": "02ff200293815d07b81e8865ce266f59505db1239acca3f6a791321a55e39e6c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.19172",
    "kind": "arxiv",
    "version": 1
  }
}