Cécile Louise Stéphanie Chaminade (8 August 1857 – 13 April 1944) was a French composer and pianist. In 1913, she was awarded the Légion d'Honneur, a first for a female composer. Biography Born in Ba
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 0x486a6b1a60e9133ae6048c15c90b91191cc948613f1406b259378d6a0d23d66f. 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/42502b21-b2d3-4584-a3ae-529ee1fd69c4.json and https://artists.proofprofile.net/proofs/artist/42502b21-b2d3-4584-a3ae-529ee1fd69c4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
By the Still Waters. Women Composers Edition, Vol. 1
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 0x01618860fb1208af07f895db41938791308f5d548c5e36e6abfabd20947748a6. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/DEPI82321364.
Three Piano Pieces, Op. 128: No. 2, Young Birches
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4d4862af9ee2c276949203b2e934a8bedb222e73945027d24a765bfc03968b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEPI82321365.
'Greetings', Miniaturas para Piano: 3 Palabras: 'a por Ello'
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dbcae0d43922fe046288f187698442c6742c90a12fb5ea68074144ffa3c8677. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEPI82308256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fa321ced6706049eb8a721f52b14c4a6ed05f220468f7ccc8306c9e73ed01fb. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/DEPI82305747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x818aeec64d2b687a575b509c50def3b28eae18d281c258523dec747c3c117e10. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/DEPI82305748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9370c7f3b7a37a92b7dd677ebe7b684093c86732f2329d52f358f2659b3e40b4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEPI82305252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc39eeafae3ea5502d601d8486214d921b889b634c4d42af9961a7606d0345b12. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/DEPI82305251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x963023a181aef26aafa53f230489b146618f7378aebab9ad5cd7fc6778fab2bb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEPI82305253.
Kleiner Walzer (Teresita Waltz / Mi Teresita), Itc 5 - Upon Duo-Art 5622 by Carreño
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a46b293056e414b82547fae9d67631ca18501c5a4e1bff9d6df0c2feb33d18a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEPI82321362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x740239ae0ae7fbfb015f06be83686163f799347130e03b02b1dfc04b67e09bba. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEPI82304561.
6 Romances Sans Paroles, Op. 76,: No. 6, Meditation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa875a08c0fb1bcdcc57b18f077cb8d4e419b5c8f3f2af7fba2efed553a81ab. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEPI82321366.
La Prière D' Une Vierge, Op. 4 (The Maiden's Prayer) - Upon Duo-Art 6387 by Rogers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1bd2298d51cc9685c9121e842b73432e9bfcb66f7d1b98b3b977496e22d5984. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/DEPI82321363.
Annie Laurie, Ias 3 - Upon Duo-Art 5622 by Himmelreich, Composer Labeled as Alice Ann Scott
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a6d2d3173fcc2a9c37d570c77f83b03f90e5db2ba38b7be186618fbc24deae8. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/DEPI82321367.
6 Lieder Ohne Worte, Op. 18 in E-Dur: II. Bewegt Und Sehr Gebunden
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007da8df69ffea0a552816fa4966442bf493dda303e81f5f7df7c331be5fbab3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEPI82308890.
6 Lieder Ohne Worte, Op. 18 in E-Dur: Vi. Am Arno. Wiegend Und Weich
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4947a9cb23846dbbdc2b44bb439e27c8f1721fd91160cc519a2d9b289696ce1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEPI82308894.
Her Sonic Realm - The Creative Legacy of Women in Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc619ca014b259f7c27960fd960dea9f8b9a9526a9495ce1a273b3150779970d6. 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/USCGH1730500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47af5ea0f901a29b884313b90db86d450735fff74bf67b5e33e298d7489275ad. 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/USCGH1730478.
Les Sylvains, Op. 60 (The Fauns) - Duo-Art 046 Br
Les Sylvains. Piano Evocations from the Golden Age
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0753d7f3ec60ce7322701898f51ce26bead00d23a560af0b1904fd7f864e6b9. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/DEPI82439044.
Album des enfants, Op. 123: No. 10 in A Minor, Tarentelle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd48670fc8a861799e3ca72443b75cec43213e2161e0c60f8c04d67627b8dd35. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/AUFFF1800070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x477320eb6cdbdab132054fc708ae0a7b54b15c3dccd56aff734cf778e4f5b25d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FRZ081100116.
Power to the Women: The Best of Female Classical Composers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eddfb5caa17a98b3feebce909369bf779f6f1f6173ba0ee1f4ff1ce716ce4ea. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/HKI199295204.
6 Romances sans paroles, Op. 76: I. Souvenance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x685a91c5088d6a100a24336398beaa5b89fdabafc22af6e430a7d7508a73c54e. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/FR9W12214743.