Pith Number

pith:DE22L5NT

pith:2009:DE22L5NTFURNNDAHCUOU56NBP3

not attested not anchored not stored refs pending

The Atacama Large Millimeter/submillimeter Array

Alwyn Wootten, A. Richard Thompson

arxiv:0904.3739 v1 · 2009-04-23 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DE22L5NTFURNNDAHCUOU56NBP3}

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	2026-05-18T02:13:57.703437Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1935a5f5b32d22d68c07151d4ef9a17edfb9521c5566f6a6bb0297a1278d899a

Aliases

arxiv: 0904.3739 · arxiv_version: 0904.3739v1 · doi: 10.48550/arxiv.0904.3739 · pith_short_12: DE22L5NTFURN · pith_short_16: DE22L5NTFURNNDAH · pith_short_8: DE22L5NT

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/DE22L5NTFURNNDAHCUOU56NBP3 \
  | 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: 1935a5f5b32d22d68c07151d4ef9a17edfb9521c5566f6a6bb0297a1278d899a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c3a5f1ef0ba0223a9968224aa85d60566801d67a8a51a3801a8dee7402d73238",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2009-04-23T18:24:37Z",
    "title_canon_sha256": "d130fa117c50f796007b82be91b58b094d06ab6472f367b541c65bc8da701e36"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.3739",
    "kind": "arxiv",
    "version": 1
  }
}