Marco Sfogli (born April 4, 1980) is an Italian heavy metal and rock guitarist. He has played guitar with James LaBrie, PFM and Icefish. Biography Born in 1980, Sfogli's first attempt with music ca
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 0x195d702a1643e39eba262ba5e35482cd85773e563ffa25ebbf9888ba4aa276a9. 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/160fb91d-07e3-485d-8005-abe330621ba4.json and https://artists.proofprofile.net/proofs/artist/160fb91d-07e3-485d-8005-abe330621ba4.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 0xccf9cb09ade2ff07964ad73fcb63f148f25d96d3915aeff2ad92925855cbf67c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USY280724506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ea8cab660d5958f2293a86d87c728071d11d0439381ad655b88c765ec977eef. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/USY280724507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0547f2db4163c5368c59b222d135acb595919ef10e6936c26b993f511e94103a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USY280724509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5f38311a04aff0cc1a65345d8524cae45112a61a8a4e43390f7b4613eae826b. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/USY280724510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f34c148657dad1c6611a6485584541ae54e624680601aff953563bf48115e5d. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/USY280724511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1997bdf37f9774d5da3ef3e3243db131054102dea738a652c8cc101904f1e4eb. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/GBS8U1210002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb4fac1a32d3046e810c59166e4dfacc88101255be7657b6cfd8911e0674867. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBS8U1210004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a010c38ddc2807900801367891a9087845764b621d394dad6e15d0ab951eec. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/GBS8U1210007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9982cfcb639f6e09b95f7c16d3cf16bfe6ad9925dd6db8fdb7427d7a4373257. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/GBS8U1210008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c05d93f6e93c0daba2b86c75b18e835078d97d0a7204cd88848053bae79b5f8. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/GBS8U1210009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x207d8542985817ec633f42d665e47f2d4f86d1b84471002d83be6cdeda41a18e. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/GBS8U1210010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ea217d21bc8f6e07b58f025b416eeb46042815ac6149b9ee462375cce8af3b. 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/GBS8U1250203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fdd97dd4cf6780f378ae700c5aaceef72a0e1a0680a3e4ae51fd1b4a67269d9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBS8U1250206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc8b1de6c3becc2dfe2fea43652cc9c68a6897ed5fbad6a0d2cd46158511b68f. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/GBS8U1250207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x378083a04e6db33180a4fdfebead96bf6983a17eb999e9fbe0f8de506ffae88f. 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/GBS8U1250208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ebf00237310234507a5bae38b14d7e856cffb9a9faf2620d5b56b6e15ee976. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/GBS8U1250209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c0abe330183aac49ab8f6456608aea5812cdc07dcee3837e2a12f373a707339. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/TCAHH2314321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9987e7208f47a0ab84123ccb91e56b2fa0fa2373f33b08edba08d36f39a0b200. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TCAHH2314326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b6ea02a55946a986a6ed9d039be6c03514315eb14633554311af2de51ed13fc. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/TCAHH2314328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c8ee6c4e87ae7c991d74fb6f3fd333d55d921a44bcbbb88bdff1bd3c33bae9. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TCAHH2314329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5543d3f8c33aec11756461144bff0e02780b7d62547d7f8f72f82a02050a5e. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/TCAHH2314332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9356a86622a25ae8cc5828ab8767383eaaedf41a6dca556bfc293df5023c70eb. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCAHH2314334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2011adc0f0787fcd73676c46520fd9a970b765dc81a5c38c75af807e08b2ec. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/TCAHH2314337.
Embrace the Sun - Lion Music Japan Benefit Album
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed5d0ccd1333a7b6e39b792027de024c457bc4a06305ef7c1e445f48dab9cbba. 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/USHM21117046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8acc0eb513c242e62cc7af71b2cac7065a1788237e9813c5d6f5794f3610cb6. 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/GBS8U1250007.