Marie Juliette Boulanger (; 21 August 189315 March 1918), professionally known as Lili Boulanger (), was a French composer and musician, associated with the Symbolist and Impressionist movements. The
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36fdba5d64ff195a91b5ca2bad83a665a3dcdc3e60daf27d73300dcb50947a2a. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/76bdedb3-351d-46f3-bd08-f061d4ed6694.json and https://artists.proofprofile.net/proofs/artist/76bdedb3-351d-46f3-bd08-f061d4ed6694.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lili Boulanger: Hymne au Soleil. Chorwerke
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f7baf001ea3f8d474eada384773989f864f8a0960c8099477bf159ef6f7831. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB111801501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8337509264c9933790017a320b8a2380e829e8dd9cd9e6a2efff314b502ad2c8. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB111801502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf531bef62392f00cf690796a8ed8848832ece80adf6e3a2013b0dd24e0663139. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB111801503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5751c2397f3c07261f594b7e0981b0d1fbe34ccf0d66c1a1772b2ec5a0b9ac8. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB111801505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca2d364b87377ef094a6cb69643382f2d1b2dc75c25fd99ec87f71b81c4f31e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB111801507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad481e1f037c9ca9ea27a137717f39da64479f95f4421604dba1d291c6eff9f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB111801511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46e4e6de6f5bef74dc1099c2b0872d39f2a4aa7783350e77cf5e361ad1bdce7. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB111801515.
Lili Boulanger: Dans l'immense tristesse
The Echoes of Women - International Women's Day 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0718727c83242c21ddbb3cd59f6c7304e01b4b8be3b32a1bbf73241473db0e49. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD9909102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde539b2fd7ea837d588ed23425eb7e037d6ba28b98d1236b7f1926e544f506df. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD9909103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa78c201b7b5f73c043f8fd827da5feac190e9201f31049e5b31e4e180f2d0e1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD9909104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x452f23a7e9f8009c292a6b0f4ab5b2ea8c51a7f59f78f8adcf417087c7dac4ff. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRY469800180.
Boulanger, L.: Psalms - 24, 129, 130 / Pour Les Funerailles D'Un Soldat / D'Un Soir Triste / Vieille Priere Bouddhique
In 24 Years: The Music of Lili Boulanger
Lili Boulanger: Songs (Hyperion French Song Edition)
Boulanger, Lili and Nadia: In Memoriam Lili Boulanger
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x208bbf22efd2135522698018839ae90232d57b077d666e1234a9bd2646d02496. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI199357909.
L. Boulanger: Psaumes, Vieille prière bouddhique & Pie Jesu (Remastered, Mono Version)
Works of Lili Boulanger: Du fond de l'abîme (Psaume 130), Psaume 24 & 129, Vieille prière bouddhique, Pie Jesu
Works of Lili Boulanger: Du Fond De L'abime - Psaume 24 & 129 - Vieille Prière Bouddhique - Pie Jesu (Transferred from the Original Everest Records Master Tapes)
Quatre chants pour voix et piano: Reflets
Boulanger: Deux Morceaux (arr. for brass ensemble by Jarle Storløkken): II. Cortège
Lili Boulanger: Trois Morceaux pour Piano
Boulanger: Deux Morceaux (arr. for brass ensemble by Jarle Storløkken): I. Nocturne
Boulanger: 2 Pieces for Violin and Piano: No. 1, Nocturne (Arr. for Violin and Harp by Paola Baron)
Nocturne (Arr. for Violin and Orchestra by Matthias Spindler)
Trois Morceaux pour piano: I. D’un vieux jardin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ef154fadc3bb9098673393ca17196b70c02f4271262722249e6a677e321bebe. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DET902486701.
Nocturne (Arr. for String Quartet by William Newell)
Clairières dans le ciel: No. 6, Si tout ceci n'est qu'un pauvre rêve
2 Pieces for Violin and Piano: I. Nocturne
Deux Morceaux: I. Nocturne (Arr. for Cello & Piano by Julian Riem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x845e0066dc8234f4bc83b66cd08836fb41ae13a4908ff025b2b05000b61f3299. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLWB82100002.
Lili Boulanger: Trois Morceaux Pour Piano (Live in Concert)
Nocturne (arr. for violin and harp, from Two pieces for violin and piano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x348914d20cff0ae0a6790e2b942b91332c98443a0a4b0a7f826e9643bf9de962. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM3DF2417227.
Boulanger: Nocturne for Violin and Piano
Trois morceaux pour piano 1. D'un vieux jardin
Trois morceaux pour piano 1. D'un jardin clair
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f24fd1702421e3485ce4a22ae263bc313572058e4b97bdcb459bb9fe5a1311d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEBAA2102008.