Pith Number

pith:UCDFXU6D

pith:2003:UCDFXU6DTOX4APUTWBZJSVYKCP

not attested not anchored not stored refs pending

Free and semi-inert cell attachments

Peter Bubenik

arxiv:math/0312387 v1 · 2003-12-19 · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UCDFXU6DTOX4APUTWBZJSVYKCP}

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	2026-05-18T01:16:22.071614Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0865bd3c39bafc03e93b07299570a13e56579eba12b74175dce9ec6a9ce4890

Aliases

arxiv: math/0312387 · arxiv_version: math/0312387v1 · doi: 10.48550/arxiv.math/0312387 · pith_short_12: UCDFXU6DTOX4 · pith_short_16: UCDFXU6DTOX4APUT · pith_short_8: UCDFXU6D

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/UCDFXU6DTOX4APUTWBZJSVYKCP \
  | 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: a0865bd3c39bafc03e93b07299570a13e56579eba12b74175dce9ec6a9ce4890

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26948c7c646ce9de6204167d4a7bdfb1344654ef8481adc533176c1cace2730b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.AT",
    "submitted_at": "2003-12-19T17:48:08Z",
    "title_canon_sha256": "4e155e7f0249a1231b26cdb4872b6a5a3145c20615db3dd057d4557822b83cd7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0312387",
    "kind": "arxiv",
    "version": 1
  }
}