Pith Number

pith:UJQPC5RD

pith:2006:UJQPC5RD5XV76SIJYMPZKLR35E

not attested not anchored not stored refs pending

What is special about HBRPs

D. B. Melrose, N. Vranesevic, R. N. Manchester

arxiv:astro-ph/0604368 v1 · 2006-04-18 · astro-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{UJQPC5RD5XV76SIJYMPZKLR35E}

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	2026-07-04T14:53:43.081189Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a260f17623edebff4909c31f952e3be93e23147b80abcf12a9d21ad5a085cd3d

Aliases

arxiv: astro-ph/0604368 · arxiv_version: astro-ph/0604368v1 · doi: 10.48550/arxiv.astro-ph/0604368 · pith_short_12: UJQPC5RD5XV7 · pith_short_16: UJQPC5RD5XV76SIJ · pith_short_8: UJQPC5RD

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/UJQPC5RD5XV76SIJYMPZKLR35E \
  | 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: a260f17623edebff4909c31f952e3be93e23147b80abcf12a9d21ad5a085cd3d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b08bda32e4b9b9bcfcb86dd0a8ed8d8b950d83d5800307fdd6b59cc67fb50fb9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-04-18T03:13:13Z",
    "title_canon_sha256": "597cdeb6b81fdcfc816b9e2626d85a90882af4510bf7bde28ca2fcba62d9d597"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0604368",
    "kind": "arxiv",
    "version": 1
  }
}