Pith Number

pith:ETBWXI4T

pith:2010:ETBWXI4TKY3QAOOHT4DOBBF2LU

not attested not anchored not stored refs pending

Astronomy in Antarctica

Michael G. Burton

arxiv:1007.2225 v1 · 2010-07-13 · astro-ph.IM · astro-ph.CO · astro-ph.EP · astro-ph.GA · astro-ph.HE · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ETBWXI4TKY3QAOOHT4DOBBF2LU}

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	2026-05-18T02:33:09.241518Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

24c36ba39356370039c79f06e084ba5d041961fd667220f2331be0c6749acb0a

Aliases

arxiv: 1007.2225 · arxiv_version: 1007.2225v1 · doi: 10.48550/arxiv.1007.2225 · pith_short_12: ETBWXI4TKY3Q · pith_short_16: ETBWXI4TKY3QAOOH · pith_short_8: ETBWXI4T

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/ETBWXI4TKY3QAOOHT4DOBBF2LU \
  | 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: 24c36ba39356370039c79f06e084ba5d041961fd667220f2331be0c6749acb0a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ac8ead81f35fb1234668b1ea4f6ae61cf2b5301abb01b52d7775aa4987d1bb4",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.EP",
      "astro-ph.GA",
      "astro-ph.HE",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2010-07-13T22:49:00Z",
    "title_canon_sha256": "a3d2c3300f4269fe08c5b0ec8dfc72daad0f291d33bf2490167b02fc75d9e977"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1007.2225",
    "kind": "arxiv",
    "version": 1
  }
}