Pith Number

pith:ZHNUB6KJ

pith:2001:ZHNUB6KJXS7B6FTDJUGWMJYM5M

not attested not anchored not stored refs pending

On Schr\"odinger maps

Andrea Nahmod, Atanas Stefanov, Karen Uhlenbeck

arxiv:math/0104125 v2 · 2001-04-11 · math.AP · 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{ZHNUB6KJXS7B6FTDJUGWMJYM5M}

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	2026-07-04T14:35:17.357439Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c9db40f949bcbe1f16634d0d66270ceb2501517c7cc567c6dc75cbeadb018c3e

Aliases

arxiv: math/0104125 · arxiv_version: math/0104125v2 · doi: 10.48550/arxiv.math/0104125 · pith_short_12: ZHNUB6KJXS7B · pith_short_16: ZHNUB6KJXS7B6FTD · pith_short_8: ZHNUB6KJ

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/ZHNUB6KJXS7B6FTDJUGWMJYM5M \
  | 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: c9db40f949bcbe1f16634d0d66270ceb2501517c7cc567c6dc75cbeadb018c3e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ac5421be131b724bf2f998e5d23b49566ad7293a2d432c1566c1ce2b1d9e135f",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "",
    "primary_cat": "math.AP",
    "submitted_at": "2001-04-11T16:24:40Z",
    "title_canon_sha256": "50313c036be2eb6f3ead11e44a9414e891355026e72f718642d8e3e5f15ae225"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0104125",
    "kind": "arxiv",
    "version": 2
  }
}