Masaladosa is a French electronic band formed in 2002. The band consists of members Pierre-Jean Duffour, Brice Duffour. Masaladosa composed music for the film Sita Sings the Blues. The band has collab
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 0x4e7eb6d81d5028311b770ee42480b86e6b679a8bde2b35f7cea80f32a6690ff3. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fc5b4db0-ba4e-499a-80b6-69808392d158.json and https://artists.proofprofile.net/proofs/artist/fc5b4db0-ba4e-499a-80b6-69808392d158.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x13baab85a087fa54c31203ea4338432778a2029585ff6a8621e84f03383d8703. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/USHM90664966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56777431715bdc3565bd1f360aed0f68f7900d408030bb72d5498f5304d58731. Chain 2 (Bitcoin): anchored in block 957663 (2026-07-12T05:58:46Z), 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/USHM90664967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb474cf7b1d5fcf061e108e47db320c8b8058118acb30f08afeea25c534c978. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/USHM90664968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbbcdbd4bbb1d75deb43648ab7574e230fd0f3a6b5b5ef3e755a7f0e07925b99. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USHM90664969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb385bd49379b383ff1bdbb02ffd9dfd2bbf1b11e961f5c157939922f24b0fe92. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:41:49Z), 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/USHM90664970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed065873ae8bf881850460ccbc9e7337f915381a94c8b8c19d0a5dc115a25d48. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/USHM90664971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dda9c7a646f2915198b53e5972571dfeacc6f83c75d5dd0bf518e5942849337. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USHM90664972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eb3208afa6fa1029d1f6a9fa76b19c279354e44dce30325a4e443e516146f2a. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:46:34Z), 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/USHM90664973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf074b2d2dad9757a7df613eedfc2d64e11eb6b246c2177d63b22ac0ee4bafd5f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USHM90664974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb24a3e7990f6a2f2cb9ba6fd1dd673a32e75ac3d51ba970eea081e96ac12a97c. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:31:37Z), 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/USHM80879174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ca905efadec9c6c55645d1950ed62355b1323ec838c843b4ca3aa3a45079b5a. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/USHM80879175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdd5c0f80e29b87bf4de282b7a81784eb72448f0d7739be293785dc9e86b29c3. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/USHM80879176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf41a463daf6161701259b62ca1fea96e4fae0e01a91b8a355ce08f8e83620247. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:06:37Z), 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/USHM80879177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c05558277806933ca42af9f407dece5236742264f1024960fcb2af802ffb69. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:46:48Z), 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/USHM80879178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee895e4e0db00819e0de9252dd294fa7b7328b466c500680e1b3e1d0d03b40eb. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:31:56Z), 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/USHM80879179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc338ab9dc078ffa1044b6fd380a340ca88c7b81583c8b510ef6647cd0ed78ab6. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/USHM80879180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d604f242dea909161a64e38e274836f9eb6b022604c43f14840417f592d8483. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/USHM80879181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9b0027e51806885051ef9363efc9eb7510e41c4c29455f1911484ceed18c076. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/USHM80879182.