Pith Number

pith:64JGTISB

pith:2025:64JGTISBCNANXM2UNXZZZFAWLI

not attested not anchored not stored refs pending

Active contacts create controllable friction

Nick Gravish, Rohan Shah

arxiv:2501.09746 v1 · 2025-01-16 · cond-mat.soft · physics.bio-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{64JGTISBCNANXM2UNXZZZFAWLI}

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	2026-07-05T10:01:57.958478Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f71269a2411340dbb3546df39c94165a2e480ee7e735e871190a73ecaabf79ae

Aliases

arxiv: 2501.09746 · arxiv_version: 2501.09746v1 · doi: 10.48550/arxiv.2501.09746 · pith_short_12: 64JGTISBCNAN · pith_short_16: 64JGTISBCNANXM2U · pith_short_8: 64JGTISB

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/64JGTISBCNANXM2UNXZZZFAWLI \
  | 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: f71269a2411340dbb3546df39c94165a2e480ee7e735e871190a73ecaabf79ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0db398fd70057b43201a9b6f3f083cda8f75953e7168ad5fd5e6911b99f1304d",
    "cross_cats_sorted": [
      "physics.bio-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cond-mat.soft",
    "submitted_at": "2025-01-16T18:55:59Z",
    "title_canon_sha256": "2a56b84c3c4e6c9f6a6784ffebfad99b20408a74439da2d89bdca9d9d256532b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.09746",
    "kind": "arxiv",
    "version": 1
  }
}