Pith Number

pith:WW4OABIS

pith:2012:WW4OABISDEJPJ5VBKDUZVVZFCP

not attested not anchored not stored refs pending

The VLT-FLAMES Tarantula Survey. IX. The interstellar medium seen through Diffuse Interstellar Bands and neutral sodium

Alex de Koter (Amsterdam), Benjamin L. Tatton (Keele), Christopher J. Evans (UK ATC Edinburgh), Hugues Sana (Amsterdam), Ian D. Howarth (UCL), Jacco Th. van Loon (Keele University, Jesus Maiz Apellaniz (IAA Granada), Mandy Bailey (Keele), Nolan R. Walborn (STScI), Paul A. Crowther (Sheffield), Philipp Richter (Potsdam), Sergio Simon-Diaz (IAC & La Laguna), UK), Vincent Henault-Brunet (SUPA Edinburgh), William Taylor (UK ATC Edinburgh)

arxiv:1210.4447 v1 · 2012-10-16 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WW4OABISDEJPJ5VBKDUZVVZFCP}

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	2026-05-18T01:53:54.293119Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b5b8e005121912f4f6a150e99ad72513d2c77534a5950be6856e0cf41923fc4b

Aliases

arxiv: 1210.4447 · arxiv_version: 1210.4447v1 · doi: 10.48550/arxiv.1210.4447 · pith_short_12: WW4OABISDEJP · pith_short_16: WW4OABISDEJPJ5VB · pith_short_8: WW4OABIS

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/WW4OABISDEJPJ5VBKDUZVVZFCP \
  | 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: b5b8e005121912f4f6a150e99ad72513d2c77534a5950be6856e0cf41923fc4b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7a33863a99236a5b81296eda023a9f38488ccf811c0433038688aaab19589f67",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-10-16T15:11:27Z",
    "title_canon_sha256": "0043631fed1401f3ea9864fdd69e893a7178fc6f62b2e22a235ece3dee76f2f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.4447",
    "kind": "arxiv",
    "version": 1
  }
}