Mathame are an Italian DJ and production duo consisting of brothers Matteo and Amedeo Giovanelli. Career Both brothers were trained in classical music, with Amedeo spending five years at a violin c
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 0xad4692c19c0c8fdd5897f013555f94753aef23758e3982b680afc36b1531ef20. 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/4c686a20-d259-4fa2-873c-94a27c3bcd46.json and https://artists.proofprofile.net/proofs/artist/4c686a20-d259-4fa2-873c-94a27c3bcd46.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 0x575901d5e33fa4e83c522fca3d27d9d15e9c211e88c0323bf24678bba11a16d0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USUG12309688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd141a1896428ff59fe3197d8ccc127f47e508a8eb2460bbf71cb233dfdc9e978. 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/DEEC31900228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc59799b342753c6dadd5576fe119e009fc84bc9f6642cdc4898e5730e009380. 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/USRE11900318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63270f2f3cfd39cfb14ea0d7132e0e7bad76718db6734059e7502c854664475d. 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/DEUM71906802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ef9688a4f617bf46284cb305b511ee047e6e8e1c555192cd747b4d5ba22c5e9. 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/DEE862001646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefcb13a649d0032fd38fd71405b5df035ca8f45a607e7098792371c833c52162. 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/DEG932304009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc59799b342753c6dadd5576fe119e009fc84bc9f6642cdc4898e5730e009380. 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/USRE11900318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x342390f31a5bb254b2d7b21f562ca57985c75bf28c1665bc879a7c171d45a1ad. 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/US39N2310793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x342390f31a5bb254b2d7b21f562ca57985c75bf28c1665bc879a7c171d45a1ad. 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/US39N2310793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38f6f00a64e5b748391149d13cd5bfe14452c0bdc3714e62b60fdb8c1c701193. 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/USUG12302960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747740107c10ba9458c63d0a3f47402157aeede6104b4fe4438d73c1e8eeb730. 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/USUG12302957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f09733faeecf3b6ce38b6a586e6145c6d5fd3ced16f46f69b74b47e49946bc. 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/USUG12204252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f6cad5143dae844ecee8f21bfeea44a83a94ba9637c4e4dc9b56c992f26711c. 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/USUG12305234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad234a219f26d6a671fc5c3717c30a5f28e45da08b62abba80d5dfef657de24. 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/USUG12302964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c1d61e0c8cd0cfd7422f817d2edc1109d3f0e92ed008e19d50378549164f45. 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/USUG12302962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb09fc224f52fa7ed5a9201cb8472571f03933e8994fa14d6ae4b696101a7a987. 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/USUG12302966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x037b87e03c3ec4667f38dcf304bffe8698eda3ea5e83f574ef7a6ff3090f023d. 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/USUG12302968.