Pith Number

pith:S47J3U3D

pith:2016:S47J3U3DFHAK2Z4VEP3ELVSG2R

not attested not anchored not stored refs pending

Piecewise Flat Extrinsic Curvature

Rory Conboye

arxiv:1612.07753 v1 · 2016-12-22 · 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{S47J3U3DFHAK2Z4VEP3ELVSG2R}

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	2026-05-18T00:14:22.849684Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

973e9dd36329c0ad679523f645d646d47fdad18bf8ee94e77323221357a6f52c

Aliases

arxiv: 1612.07753 · arxiv_version: 1612.07753v1 · doi: 10.48550/arxiv.1612.07753 · pith_short_12: S47J3U3DFHAK · pith_short_16: S47J3U3DFHAK2Z4V · pith_short_8: S47J3U3D

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/S47J3U3DFHAK2Z4VEP3ELVSG2R \
  | 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: 973e9dd36329c0ad679523f645d646d47fdad18bf8ee94e77323221357a6f52c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eb18985d0563dc18858d10b39483a3305948fc8ecfd29749f6c6aae20852a25e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2016-12-22T19:09:40Z",
    "title_canon_sha256": "ac74a73fcc0af1cee9628376abf01374a9a698acba2189d581fe1d9d2d84fb6f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.07753",
    "kind": "arxiv",
    "version": 1
  }
}