P-Rock TV was a UK-based music channel which played mostly music videos in the Punk and Ska genres. It also featured underground rap and hardcore artists. It was first set up in November 2002 by two S
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 0xe5007b7933e0c4818013912d46785007559ce7e0358bb86da8c3ccf2861459e4. 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/6c3bc47d-0976-4f39-9772-d0aa1f3dadea.json and https://artists.proofprofile.net/proofs/artist/6c3bc47d-0976-4f39-9772-d0aa1f3dadea.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 0x23fe18033d640527213d7a31ef36c31fa3a08d5121ef6559d486131968e6f205. 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/USCGH2149903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d3c3bfff9af16fc86fd6ddcf2cabc73ff13b79dcc9f5242a69ae0ef9ad53077. 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/USHM81848406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb7f6d7f2348570495004c3e9151a920a8fbdfdd5a5a097f3533390207a81ea. 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/TCAEZ2069855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c23f0c3528fb5130aa20adb2a1b1d3c4065667e146359639e4e233801ced2f. 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/TCAEZ2069987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed8f9b4f9a227d6f4f8f29680e4d3b75be5ad0a77ba4e13f235bb49405a8180f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TCAEZ2070003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x471da9af87bc1bb3c120eb9329fc2998063fdc8c085a40d5f1b6e9c1bac16a9a. 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/TCAEZ2070052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b01d3d161babb5137a958271bf84586033cdef2d520c73a4f296a386500eac4. 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/TCAEZ2070128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe720497845966949bac5a09ea32de0549575f80f1ffee66fb925ddb0b1365db2. 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/TCAEZ2070137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8467e98415251008c24b4ccb99156e0711895e3dbddead1da422d0b9879920a9. 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/TCAEZ2070148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f109e9d67a78fab0a028fca1ed8911dbd7398905e0545820347f5c1402cc5be. 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/TCAEZ2070189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd117024cc35edf7df983c2cfefaeb6bc20d0a7c7fb8361e8b01ba027b12780df. 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/TCAEZ2070203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34d10c9a40899249ee9f8d0d7a13aba8ba0672c0a4d9fe6dadae05806eb44493. 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/TCAEZ2070221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ce96de59472eca14888bbc6d97f42995bdee4823a182b3fe9e6d8b8d4dbc54. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TCAEZ2070230.