Pith Number

pith:P77DTF25

pith:2005:P77DTF2532DSAO2TBGTAPOEGPS

not attested not anchored not stored refs pending

The Borel-Serre Compactification for the Classifying Space of Hodge Structures

John Scherk

arxiv:math/0509319 v3 · 2005-09-14 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P77DTF2532DSAO2TBGTAPOEGPS}

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	2026-05-18T02:55:57.874966Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ffe39975dde87203b5309a607b8867c9e8703002c1e8d6bdc9c2439152de488

Aliases

arxiv: math/0509319 · arxiv_version: math/0509319v3 · doi: 10.48550/arxiv.math/0509319 · pith_short_12: P77DTF2532DS · pith_short_16: P77DTF2532DSAO2T · pith_short_8: P77DTF25

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/P77DTF2532DSAO2TBGTAPOEGPS \
  | 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: 7ffe39975dde87203b5309a607b8867c9e8703002c1e8d6bdc9c2439152de488

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9df53409011df57717f39d79758159f6c0c2ccaa0e0d9b72d9d81994ad582d03",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.AG",
    "submitted_at": "2005-09-14T15:54:45Z",
    "title_canon_sha256": "dab5dd9dbea0d27e2c2efe49d36bd089f0e45ab4a9ab1c48c5c18dae1fc8d365"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0509319",
    "kind": "arxiv",
    "version": 3
  }
}