Pith Number

pith:I44VPG5A

pith:2008:I44VPG5APZC5ZWNBR2JRTTXMXE

not attested not anchored not stored refs pending

Particle motion during the compaction of granular matter

Jack F. Douglas, Leonard Goff, Masahiro Toiya, Steven Slotterback, Wolfgang Losert

arxiv:0802.0485 v1 · 2008-02-04 · cond-mat.soft

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I44VPG5APZC5ZWNBR2JRTTXMXE}

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	2026-05-18T03:24:43.116340Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4739579ba07e45dcd9a18e9319ceecb91bb70ae572f1dcf35cd5e7c6a71385bd

Aliases

arxiv: 0802.0485 · arxiv_version: 0802.0485v1 · doi: 10.48550/arxiv.0802.0485 · pith_short_12: I44VPG5APZC5 · pith_short_16: I44VPG5APZC5ZWNB · pith_short_8: I44VPG5A

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/I44VPG5APZC5ZWNBR2JRTTXMXE \
  | 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: 4739579ba07e45dcd9a18e9319ceecb91bb70ae572f1dcf35cd5e7c6a71385bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0646bd9447862eec9fd94e0a5e4416318a4a8d19f76fe9f2101dfd5db704dcbd",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/publicdomain/",
    "primary_cat": "cond-mat.soft",
    "submitted_at": "2008-02-04T20:23:35Z",
    "title_canon_sha256": "c4145dcef2c71f22e07b23def756c2ad7d85962d9a129aa22aaef29db2ffdb29"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0802.0485",
    "kind": "arxiv",
    "version": 1
  }
}