Pith Number

pith:EHQNER2P

pith:2007:EHQNER2PW2LE5LRMYDOZBU44OX

not attested not anchored not stored refs pending

Massive Star Formation

Jose Franco, Melvin G. Hoare

arxiv:0711.4912 v1 · 2007-11-30 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EHQNER2PW2LE5LRMYDOZBU44OX}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:21:56.268882Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21e0d2474fb6964eae2cc0dd90d39c75df0d217b8db916a50aec808c13f1aadd

Aliases

arxiv: 0711.4912 · arxiv_version: 0711.4912v1 · doi: 10.48550/arxiv.0711.4912 · pith_short_12: EHQNER2PW2LE · pith_short_16: EHQNER2PW2LE5LRM · pith_short_8: EHQNER2P

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/EHQNER2PW2LE5LRMYDOZBU44OX \
  | 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: 21e0d2474fb6964eae2cc0dd90d39c75df0d217b8db916a50aec808c13f1aadd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c33ae2621a4c96f7824e89a4a9049ccbab3bb5b1e61ed077b1383917c9ef19c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-11-30T15:04:33Z",
    "title_canon_sha256": "bf7532a9e0069adb907a2bac07dc19aca4fe62fa79e4f1ad41028fdba3a4e143"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0711.4912",
    "kind": "arxiv",
    "version": 1
  }
}