Pith Number

pith:IY6Y3DNW

pith:2008:IY6Y3DNWDM4DRNGYY7GZME2TDH

not attested not anchored not stored refs pending

Substance graphs are optimal simple-graph representations of metabolism

Mikael Huss, Petter Holme

arxiv:0806.2763 v2 · 2008-06-17 · q-bio.MN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IY6Y3DNWDM4DRNGYY7GZME2TDH}

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	2026-05-18T04:42:14.011149Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

463d8d8db61b3838b4d8c7cd96135319dddc222183aa23cbbfd5da33bb8c323c

Aliases

arxiv: 0806.2763 · arxiv_version: 0806.2763v2 · doi: 10.48550/arxiv.0806.2763 · pith_short_12: IY6Y3DNWDM4D · pith_short_16: IY6Y3DNWDM4DRNGY · pith_short_8: IY6Y3DNW

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/IY6Y3DNWDM4DRNGYY7GZME2TDH \
  | 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: 463d8d8db61b3838b4d8c7cd96135319dddc222183aa23cbbfd5da33bb8c323c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "51a5b2edfc81fd025928f86d3e852f2a0051e9dbbcdf52f32b34ed09e4a2d01c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.MN",
    "submitted_at": "2008-06-17T11:47:06Z",
    "title_canon_sha256": "f1dc46c6ad6a9ee0c935f0bd3a33feb7f49fa31ca83cdbfde086272122bb9c06"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0806.2763",
    "kind": "arxiv",
    "version": 2
  }
}