Paul C. McKasty (September 20, 1964July 17, 1989), better known as Paul C, was an American East Coast hip hop pioneer, producer, engineer, and mixer in the 1980s.Pritt Kalsi McKasty gained recognitio
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 0x05044cb75b4d6cd752b4830a0830bdf48653b24138e519531b35161a553d72fe. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/78e002f6-eeb7-4a3a-9cde-66cb493ba4b2.json and https://artists.proofprofile.net/proofs/artist/78e002f6-eeb7-4a3a-9cde-66cb493ba4b2.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 0x93ace6222d8dd31f92e04f0875042d04c7b6117679ec3e88a288bea2387844fe. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/USLZJ2283835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a5b618aa209bea97dff43c7120d9e3cf0809116a4e1c1c1f88143ec73ac98d. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/NL8FJ2300276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f1034d128c0ac966c6826da9fab0799138a115ad5ca3da09c5b94eb9ff87cc6. 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/GBSCL2235050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a8dfa2677f82421ca3528dea33db3ce448ab2a98827f2f0623b75e822c6be7. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/GBSCL2235051.
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 0xb6dd49d11a664818ea7d91d2c3394725de0afdc22c9b408d452dcc5eef89cc74. 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/GBSCL2235053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f88306511e6d27b5076f1cbf233982cb0e71c53d74f509d1373b9fe0f28059. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/GBKQU2383997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc595d716250df6245a2ec0ed8a7f013a59e74def0290f70fb7689291c1c0cf07. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GBK6Y2322202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2e80a91df806bb2269d8ca8d67f01e6515a4bef176280fac9e832b14235f5b. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/GBSCL2435052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ca105a721365794ad792ee2eacf2b07f0275d574d4fd24287becc9f1b82ab7b. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/GBJAJ2401077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6099bb057808901e5f83c3a4a840b416f058bdf88e66d5adbaa2931e6973ec70. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T19:20:12Z), 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/GBJAJ2401079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab7559868eec06b6e85ec152489d97c159beab79165ac6a0c4dfa41c28d1f84d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GBKQU2517389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7597b5da3eaef3cbcf43609ed292f03c1bf887051c0f50142624c14bf026adc1. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/CA5KR2523950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6955f250f9c0d7e76fe1c469b9a36fe3ff48063351b2c6bf97ab2baf9fd50aec. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/CA5KR2523951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1534df46dd41186bd88df27dbdc281bca684049c715cbd18a7d0d7f7b52d2403. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEH741313538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ade47401bad980564c478df396c100533414bfdc3093188f68c7c9336337096. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/GBKQU2230398.
Raw House - Paul C & Paolo Martini Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46598977aefb04c18cdf9153449d5ee213f6663c7403556fa7a8a8049370e2cd. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/ITA061300996.