Pith Number

pith:B3KSSD2T

pith:2012:B3KSSD2TXC6MKAD3BJUKEZH47K

not attested not anchored not stored refs pending

Effective conductance method for the primordial recombination spectrum

Yacine Ali-Ha\"imoud (IAS)

arxiv:1211.4031 v1 · 2012-11-16 · astro-ph.CO · physics.atom-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{B3KSSD2TXC6MKAD3BJUKEZH47K}

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	2026-05-18T01:35:01.275736Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ed5290f53b8bcc5007b0a68a264fcfabb512a760882ffb1c0e09a58f2f0ba1f

Aliases

arxiv: 1211.4031 · arxiv_version: 1211.4031v1 · doi: 10.48550/arxiv.1211.4031 · pith_short_12: B3KSSD2TXC6M · pith_short_16: B3KSSD2TXC6MKAD3 · pith_short_8: B3KSSD2T

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/B3KSSD2TXC6MKAD3BJUKEZH47K \
  | 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: 0ed5290f53b8bcc5007b0a68a264fcfabb512a760882ffb1c0e09a58f2f0ba1f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c37dc86b29073e7aeea0fbc009c0a80301b875590a8b3da5a21b83787b071f8",
    "cross_cats_sorted": [
      "physics.atom-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-11-16T21:00:03Z",
    "title_canon_sha256": "0ff4f6aa7598f2ca8513fd432596d687a797034b8ca749e5d73761c9b0c74e90"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.4031",
    "kind": "arxiv",
    "version": 1
  }
}