Pith Number

pith:WI4SKB42

pith:2011:WI4SKB42BX2AYAWC5L6LGSSX3G

not attested not anchored not stored refs pending

Change and Aging Senescence as an adaptation

Andr\'e C. R. Martins

arxiv:1103.4649 v1 · 2011-03-23 · q-bio.PE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WI4SKB42BX2AYAWC5L6LGSSX3G}

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	2026-05-18T04:04:06.801157Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b23925079a0df40c02c2eafcb34a57d981db2d134a14b9e79e3cafab090491e0

Aliases

arxiv: 1103.4649 · arxiv_version: 1103.4649v1 · doi: 10.48550/arxiv.1103.4649 · pith_short_12: WI4SKB42BX2A · pith_short_16: WI4SKB42BX2AYAWC · pith_short_8: WI4SKB42

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/WI4SKB42BX2AYAWC5L6LGSSX3G \
  | 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: b23925079a0df40c02c2eafcb34a57d981db2d134a14b9e79e3cafab090491e0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "78bfd3672cc388db8816466d5f6dc28193452d413a3155e867eb989881142cb7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2011-03-23T23:24:25Z",
    "title_canon_sha256": "390ffeaf291d1c82bf3eba44382335366fe159d2c34bb68db14b3e40c364a952"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.4649",
    "kind": "arxiv",
    "version": 1
  }
}