Philip Mark Quast (born 30 July 1957)Profile , debretts.com; accessed 14 September 2014. is an Australian actor and bass-baritone singer. He has won the Laurence Olivier Award for Best Actor in a Mus
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 0x180ec75cf46cad56e04f9ef93f7aebc430138c508dee9a8d3b9cb40bf6045c0b. 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/85cc567c-14eb-423b-8cd1-0054a056381d.json and https://artists.proofprofile.net/proofs/artist/85cc567c-14eb-423b-8cd1-0054a056381d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Les Misérables (10th Anniversary Concert Live at Royal Albert Hall)
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 0x6ddb984454bbc779dadcb52df5bc7f54785964c54b76c74c1f7adaa0eba27aa0. 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/GBBKB9620801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749ee68156d2de29054da32ad3f46b7f5f6804d77519f5b4d3adf731c9f0b2f4. 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/GBBKB9620802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fd913b6469acd06dc3a49399ffed5c80e0fcf2a527fae14c22be87e2b38193a. 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/GBBKB9620807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa22beffe6ceaf5c7a8c5e924684c95388b3034f3920a26cf2eb8d7e585e0515a. 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/GBBKB9620811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b6d15f4fbeeae7ac63bcc84aa92482615f574b8d3c82031484db14fdda45b8. 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/GBBKB9620816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6086319230fb78e56c82d91fed2ca67d31c107077674d5040ac8895c53409c9. 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/GBBKB9620825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9001a016a2b49e3a44ee80c814da4d2113ad1175617841f1a482d5b64f0273e. 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/GBBKB9620834.
Les Misérables (The Complete Symphonic Recording)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d44d51bc881916fcbe5a1e6ff12ddca541da29f35af8f250d382831d384aa40. 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/GBBKB9920101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a6bb07794f1fe3445f45b0a87ce895756555d28ae22ebde2769891e462c388e. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/GBBKB8820106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed65f757d616ec5e6735f06b638bbef3f3fa4cb724ea4df0374e0b1a57bb6cf. 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/GBBKB8820107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7487e56030d38b4758c460bb05a01291f6ad5a521dc77f77571b6e25f978ee5. 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/GBBKB8820110.
The Robbery / Javert's Intervention (Another Brawl)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a8c4268b214d42048c762d870b8018f88f9431c92cc83130cb1ef5ebfea0527. 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/GBBKB8820115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579818328e9bd7f1ab909c09b727f1cbd2e8f68ebde7b8faf9a4f827fb7085bc. 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/GBBKB8820116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5babc716a5fd31504b0aa1f94ba74712a780e0ea9a19afa78457968a617ea922. 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/GBBKB8820123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a69cad686778e0681c12089ff69087a561011f5a125172523edc129e1d5bc2. 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/GBBKB8820124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2579c0c7594949623926a66a5b7d5f38b4bc7c2ad902ec31d414d78539d43e52. 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/GBBKB8820127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad5780d6d0161d4e04db8d88584fd015002657c028b7d16f34dff252509a5ce8. 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/GBBKB8820128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b3fc75c3858c49154db2f67d6db2e68600f5619a7b3e8b66de211ea1676481. 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/GBBKB8820131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c68a1cc805ae9cfb23ca8acf01855c5970bef93329c9b1d4022b88895fc684. 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/GBBKB8820137.