Pith Number

pith:25OJD2HK

pith:2009:25OJD2HK5LNJA6E54HNC6ECITO

not attested not anchored not stored refs pending

A Riemann--Hilbert correspondence for infinity local systems

Aaron M. Smith, Jonathan Block

arxiv:0908.2843 v5 · 2009-08-20 · math.AT · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{25OJD2HK5LNJA6E54HNC6ECITO}

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	2026-05-18T03:51:48.949268Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d75c91e8eaeada90789de1da2f10489bb93a4f5348838e6e8e9b1ce748459d32

Aliases

arxiv: 0908.2843 · arxiv_version: 0908.2843v5 · doi: 10.48550/arxiv.0908.2843 · pith_short_12: 25OJD2HK5LNJ · pith_short_16: 25OJD2HK5LNJA6E5 · pith_short_8: 25OJD2HK

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/25OJD2HK5LNJA6E54HNC6ECITO \
  | 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: d75c91e8eaeada90789de1da2f10489bb93a4f5348838e6e8e9b1ce748459d32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5cee531ce56e48acb04304f8fbb8b924cda67bf9d1de7239f1e450c2322f8f9e",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2009-08-20T02:16:23Z",
    "title_canon_sha256": "9951ce3af6ad7d75947d1eb2b057c4c1061f02c94fe54032b32078cf398853d3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.2843",
    "kind": "arxiv",
    "version": 5
  }
}