Pith Number

pith:RDAGB7ZP

pith:2009:RDAGB7ZPSZE5KVGTL5NSUCFYHX

not attested not anchored not stored refs pending

Hearing Delzant polytopes from the equivariant spectrum

Emily B. Dryden, Rosa Sena-Dias, Victor Guillemin

arxiv:0908.0727 v2 · 2009-08-05 · math.DG · math.SG · math.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RDAGB7ZPSZE5KVGTL5NSUCFYHX}

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	2026-05-18T03:53:29.774756Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

88c060ff2f9649d554d35f5b2a08b83de43b3fd663e56117cd97d449bf105d0a

Aliases

arxiv: 0908.0727 · arxiv_version: 0908.0727v2 · doi: 10.48550/arxiv.0908.0727 · pith_short_12: RDAGB7ZPSZE5 · pith_short_16: RDAGB7ZPSZE5KVGT · pith_short_8: RDAGB7ZP

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/RDAGB7ZPSZE5KVGTL5NSUCFYHX \
  | 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: 88c060ff2f9649d554d35f5b2a08b83de43b3fd663e56117cd97d449bf105d0a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a65f62dde3d40e8d13b4a2cc7e7b5926e6c0b0b79bd70ad430da2f0c2ecaf089",
    "cross_cats_sorted": [
      "math.SG",
      "math.SP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2009-08-05T20:49:35Z",
    "title_canon_sha256": "3a57bde9fb3d562dc45209dfaff5101b9f08a3d21161b594cc1b291e32fcb729"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.0727",
    "kind": "arxiv",
    "version": 2
  }
}