Pith Number

pith:S2OWMZ2L

pith:2012:S2OWMZ2LN5ZBEUXDG2JIT3KQA6

not attested not anchored not stored refs pending

Hilbert forms for a Finsler metrizable projective class of sprays

D. J. Saunders, M. Crampin, T. Mestdag

arxiv:1206.7021 v2 · 2012-06-29 · math.DG · math.SG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{S2OWMZ2LN5ZBEUXDG2JIT3KQA6}

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	2026-05-18T03:36:46.429538Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

969d66674b6f721252e3369289ed5007bc801ceec9152080efec09ee7a4473dd

Aliases

arxiv: 1206.7021 · arxiv_version: 1206.7021v2 · doi: 10.48550/arxiv.1206.7021 · pith_short_12: S2OWMZ2LN5ZB · pith_short_16: S2OWMZ2LN5ZBEUXD · pith_short_8: S2OWMZ2L

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/S2OWMZ2LN5ZBEUXDG2JIT3KQA6 \
  | 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: 969d66674b6f721252e3369289ed5007bc801ceec9152080efec09ee7a4473dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a1212d06b61b33227feaedee3f54e99f44feeb096d02c66cfcf128b3ee0bcebb",
    "cross_cats_sorted": [
      "math.SG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2012-06-29T13:37:17Z",
    "title_canon_sha256": "052b706691ad5f5eefac5da97384dd36fe7f8a36545cdc02a27a14ce6f640c1e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.7021",
    "kind": "arxiv",
    "version": 2
  }
}