Pith Number

pith:AQHSAETD

pith:2008:AQHSAETDDVWKDRYEXAKP5OOE5F

not attested not anchored not stored refs pending

The Chern coefficients of local rings

Wolmer V. Vasconcelos

arxiv:0802.0205 v2 · 2008-02-01 · math.AC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AQHSAETDDVWKDRYEXAKP5OOE5F}

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	2026-05-18T03:55:22.342251Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

040f2012631d6ca1c704b814feb9c4e9541556a09345218ba94103ebeff2cbd3

Aliases

arxiv: 0802.0205 · arxiv_version: 0802.0205v2 · doi: 10.48550/arxiv.0802.0205 · pith_short_12: AQHSAETDDVWK · pith_short_16: AQHSAETDDVWKDRYE · pith_short_8: AQHSAETD

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/AQHSAETDDVWKDRYEXAKP5OOE5F \
  | 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: 040f2012631d6ca1c704b814feb9c4e9541556a09345218ba94103ebeff2cbd3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b34d84a98a4fd990c4b9136a00ec5989601f7a3a4716400d029b36b41f607f9b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AC",
    "submitted_at": "2008-02-01T21:14:49Z",
    "title_canon_sha256": "5d267dca285074541a96beb5a101b34f3c31dee1c9d1ab3ace001773e8a0afa6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0802.0205",
    "kind": "arxiv",
    "version": 2
  }
}