Pith Number

pith:M3DM5673

pith:2015:M3DM5673DKNMEUZ6KE4H4VLTPA

not attested not anchored not stored refs pending

Twisting by a torsor

Michel Emsalem

arxiv:1508.02903 v1 · 2015-08-12 · 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{M3DM5673DKNMEUZ6KE4H4VLTPA}

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	2026-05-18T01:35:23.491458Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

66c6cefbfb1a9ac2533e51387e557378171eb7aa83abc5ec2dd5fe9fe6bcec46

Aliases

arxiv: 1508.02903 · arxiv_version: 1508.02903v1 · doi: 10.48550/arxiv.1508.02903 · pith_short_12: M3DM5673DKNM · pith_short_16: M3DM5673DKNMEUZ6 · pith_short_8: M3DM5673

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/M3DM5673DKNMEUZ6KE4H4VLTPA \
  | 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: 66c6cefbfb1a9ac2533e51387e557378171eb7aa83abc5ec2dd5fe9fe6bcec46

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f5d77511f6d5491725e34691b794b525e443b00db2c1eaee2550e8158265fcc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2015-08-12T13:03:58Z",
    "title_canon_sha256": "caa797534e3aadf096d77bd3e83856e9a817da0a039262a7738db2a284c0cd64"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.02903",
    "kind": "arxiv",
    "version": 1
  }
}