Pith Number

pith:7SFUPNEL

pith:2026:7SFUPNELWWTJ54DCXW77RKFL3B

not attested not anchored not stored refs pending

The Limits of Time

Amelia Lee Do\u{g}an, B. Biira

arxiv:2606.13138 v1 · 2026-06-11 · cs.OH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7SFUPNELWWTJ54DCXW77RKFL3B}

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	2026-06-12T01:09:42.290749Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc8b47b48bb5a69ef062bdbff8a8abd85ffbe01a5853bfe276d00ea07d406af7

Aliases

arxiv: 2606.13138 · arxiv_version: 2606.13138v1 · doi: 10.48550/arxiv.2606.13138 · pith_short_12: 7SFUPNELWWTJ · pith_short_16: 7SFUPNELWWTJ54DC · pith_short_8: 7SFUPNEL

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/7SFUPNELWWTJ54DCXW77RKFL3B \
  | 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: fc8b47b48bb5a69ef062bdbff8a8abd85ffbe01a5853bfe276d00ea07d406af7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5b11fe4a7d291a3182616ba2d540331c7e8b19fb65d97b7ad235460fe2fdbdf0",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.OH",
    "submitted_at": "2026-06-11T10:02:10Z",
    "title_canon_sha256": "8a23798553e93786d15c0dcc4af2ceb30fcc244c50db3fcd4f359f7d7015d721"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.13138",
    "kind": "arxiv",
    "version": 1
  }
}