MATISA Matériel Industriel S.A. is a Swiss company that manufactures rail maintenance machines and provides associated services. It was founded in 1945 and is based in the canton of Vaud, in Switzerla
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 0x050428055bb8b466294907ab5d03ebf76b9fa7ce8e89c2f17006410d77781fd2. 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/dcdbd0e4-e4f9-4d4d-83d9-baead6ec5e96.json and https://artists.proofprofile.net/proofs/artist/dcdbd0e4-e4f9-4d4d-83d9-baead6ec5e96.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 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 0x9b5927e3a30cabf1683b8da648bdfb91b2be723e10166620803c74d8adad19cd. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/GBKQU2403652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c645058b69a9f5278dfdad01b3f43813c1ecc3cdcd20fad10f0a2f0a05cd975. 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/DEVH21800724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6dfefbba882d5d8389e2782562d3f1241c56146f44ae283a3934935790eb06. 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/DEVH21800725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32363ae190b89e19b828f3cadd3a1e70ae1dc7de57cd4b8624555a24b730fcf2. 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/DEVH21800726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb25ce881319523fb6c1898502aaf397ce160a669b890d722ca5002177585fbb9. 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/GBJX32375031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa867861ad2e51ae4c875cadf2e34bc3d978d4e52674bebac75f081a32a96e53. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/GBJX32375022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebde842a1b6ebae9af244edebd35338d38bffa81a8a8635ed4b22f88cdfaac91. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBJX32375023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08c6005e8b8dc97e32381d6ad90da0df298f5455523ee6635dcf8f3fa6c80e08. 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/GBJX32375024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5688e99a45acc467fb1f139f759902ed8781d0ff3ccb346da807286bb85ae6e. 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/GBJX32375029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4373c126546d0b165fa8c894c343c3bc04b95edcb49b8831cb215c2d60fc3f14. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/AUFF02400099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd15066a3b19896cb23db27676917c2294a34a0879f90f9bb9f371a903aea86fa. 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/DEG932401121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5011fb846460d047098d464704df43e0ce5f521b0e9a72ebdfea3e5ef159e6bc. 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/DECY62400062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ab4d73ee463fdbafc34c714ab16b55bdd0450f1a2c8bafe1194d53a5f01aa2b. 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/DECY62400063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21a994068dd50550ab45f946ac05479bf75b17f262de8a90458d956bb8399804. 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/DECY62400064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b5f3d4282e77bca9cc8f24ee68ca9525d0d4e00c0607faba2f7db105a734bc9. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/DECY62400065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d96550f9f8632349cffef995b5ac805048d061de0b355eb3e66f3b68e716e8b. 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/GBJX32475012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c93b8851eef555f67cd8c6a913c636a8280cd493c1228da01665cbe4c2e3d0. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/DECY62400066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dee7665e51b7859e41722ebc4f6055670ba9243701097982fb42b99ecedc664. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/DEG932303709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e22520b7727223881c1eddc7bca9fe7b79f7737070aa114132d5d7c36f5ea4. 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/PLE072317103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10e65ff930c4cc74ade4b89a4c6b2d4ebea097d02987cf92a239a6a85b648263. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/UKWGH2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad4324c1502624a31f604e32e0e9deae9afe4e16b1e4d7e311cc46b55b90cbbc. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/UKWGH2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c0866fde4dae3554121aacb5252a3f416cb44b1e473f3ee7a24a6da8065d986. 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/UKWGH2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7545bb854bfd359c48b06b72b3b2ccf15d03f9078546699dc9f83ff6f4d4ff76. 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/USZXT2250393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa63dca42b38a5a67eab7bc5ab4945122cc05f610169c6db78b28dbc547496cdd. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/UKEEH2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0abef65b3d614aef1bb29d8bf9d4836ff89bea36b02233858145d9d6a68aba8c. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/UKEEH2100002.
I Need A Bit Of Poetry (Kim Ann Foxman Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4571867a32e7fe3d9f79ab8749dc6a85c14f81c1a126aa05c36fecd58c0715e. 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/DECY52001324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e6a46b72811aaded0df477dd813e9bedc98579e10dc06811133cc4bb505a9fd. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/DEU671901054.