thumb|200px|Louis Varney (1844–1908) Louis Varney (; 30 May 1844, New Orleans, Louisiana – 20 August 1908, Cauterets, France) was a French composer. Biography thumb|left Louis Varney was the son of A
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d02972664a50783f999f564c356b599b1bd1c2129b1643bacb980f03c210826. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5db811a2-9e42-42a9-b954-234510f47990.json and https://artists.proofprofile.net/proofs/artist/5db811a2-9e42-42a9-b954-234510f47990.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Varney: Les mousquetaires au couvent (Short Version, Mono Version)
Merrie England, Act II: Dan Cupid hath a garden (The English Rose) [McAlpine] - 1989 Remaster
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x950c0d761cd9836f65d4994554aa5c306ef946cb63f38a9fdf763a37c45b0d71. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBAYD8900838.
Léhar: Paganini: "Gern hab' ich die Frau'n geküsst"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x475de15b8a9df05f467939b1d2e9d6b6d195c8b021fc1c5c3b9d1d19e6015848. 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/DEA340200672.
Zeller: Der Obersteiger, Act 2: "Sei nicht bös" (Martin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e82799aa7752ef8e79e89c143c488da483576658a024eb80075a7dae12aa243. 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/GBAYC8602649.
I'll See You Again (Bitter Sweet) - 1999 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d13676cf9fb89f7866f429a62b71927395dcf73361133adbf5b587096a9f971. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBAYE9901619.
Lehár: Die lustige Witwe, Act 2: Vilja-Lied. "Es lebt eine Vilja, ein Waldmägdelein" (Hanna)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37193341d289ffdadcfdef39bd0c73b4b95fd5416182809336270740acd72cb3. 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/GBAYC8602653.
Die Fledermaus, Act 2: Klänge der Heimat (Csárdás / Rosalinde) - 1997 Remaster
Chor der Wiener Staatsoper in der Volksoper
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b7c6cea35132ebb27721df418cf7f56a1c208c487b3655dc288332d93db895. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEA349707430.
Charles Lecocq, La Fille De Madame Angot
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd44a25d9f225ca7921f061631ec531cc11f6c83d09c0e4b3d502cb809fd9c06d. 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/FRZ035902290.
Les Mousquetaires au Couvent - La Magie de l'Opérette en 38 volumes - Vol. 22/38
Varney: Les mousquetaires au couvent, extraits (Mono Version)
Varney: Les mousquetaires au couvent (Mono Version)
Petite ouverture à danser: Petite Ouverture a danser
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe46e55ef095525500bc8a89a41d5d45392de51bf100795301e0b7df7a9cc76ac. 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/SEVOZ1151601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x214739b932ac28913ebe17aa2bac0a8c469b3af41e8e3d334af9f0811804155a. 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/SEVOZ1151602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3cc91f441989893cfa649f2f6413447ca74384643ee96c0bc0570fcd702ad3. 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/SEVOZ1151603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb86665b4845a782fcafd2175b4e724a44d1f3c0c6e1765e067aef94447790047. 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/SEVOZ1151604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b7bd9734747fe2fc75a158499c3c3b2baad7f25bd52cacf4e11b57571519d9. 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/SEVOZ1151605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf96830ec90a0111bc7c7cd4b3d6af04ceb0f988b0d98e3991ddec82cfd9ca1a5. 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/SEVOZ1151606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed26e66d41772ca37f61e9f9564b544d9160f557df836c52854590483dfe2bfb. 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/SEVOZ1151607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x473dd12cd2541eb8c536f4505899ebf263ac0b172eaad29f9caa22bc5edb09b7. 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/SEVOZ1151608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f4593ec1dabc8d492eed75c4e5987f6c579945ab205dff1cfdc0ed35db46b5a. 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/SEVOZ1151609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32785e40e67acb1581988e89a0d22865e7121c0029c2795a2a7f3231f8d67084. 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/SEVOZ1151610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09cd27244e29644ca705240262dea32303321d6112d05c39fa9a4832b1db2d50. 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/SEVOZ1151611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8672ab5eede18dcc3d7c0019ec651a8ad6fb9166000820d0d94dc1fa2b36b16f. 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/SEVOZ1151612.
Verset laïque et somptueux: Verset laique et somptueux
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7345d8072969b448242540db6ad74d70795832f67b1e9d1ed42013e3dc19de7a. 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/SEVOZ1151613.
Petite musique de clown triste (erroneously attr. To Satie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ac36aa6e53be9bca57d7a29ecce9bc993a6308ad5d45deaa4de1ea853ecb9ad. 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/SEVOZ1151614.
Reverie du pauvre (erroneously attr. To Satie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4b37bacd9a75643ad20c2f3984434a9a7b24d6a8e9fa7fd1051ece3cec036a1. 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/SEVOZ1151615.
Le Poisson rêveur (the Dreamy Fish), "Modéré": The Dreamy Fish
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a6c200d0306bb6a4bdcb096ff2952809c689731317c8c17224e82b00695f337. 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/SEVOZ1151616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65084616bdbadf7a61ffcd082a89a47df54e41ccd741eedf2e804bbf12cac2b4. 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/SEVOZ1151617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x994b040c6276b1fb3ee9b9cfe2dd812f75fc3ab0b92b6693aa017883df1ded5d. 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/SEVOZ1151618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf84b0115397a0ff328e3e45633c048beb26350517f43c96020628b569df9d966. 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/SEVOZ1151619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f8667dbf6359d2a4bd0c4111707fbb5f28f8dcea707174d096d6375787567f0. 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/SEVOZ1151620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1248178888f64a3bc49dbb223a7368824576dac035bdc2f874ef3757147f6d6. 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/SEVOZ1151621.
Varney: Extrait des Mousquetaires au couvent - Planquette: Extraits des Cloches de Corneville (Mono Version)
Bernard Alvi chante l'opérette (Mono Version)
Offenbach: La vie parisienne, extraits - Varney: Les mousquetaires au couvent, extraits (Mono Version)
Offenbach & Varney: Ouvertures - Single (Mono Version)