Mark Rivers (born 26 November 1975) is an English former professional footballer who played as a forward from 1994 until 2006 notably for Crewe Alexandra and Norwich City. Career Crewe Alexandra Mark
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 0x97b467c587b261a90bb0e88730db4a61ec966f8d8fc2ccc8c5c3c242e89f1179. 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/aa3ce333-cad7-4ce3-ac7d-bb992ee6a9e8.json and https://artists.proofprofile.net/proofs/artist/aa3ce333-cad7-4ce3-ac7d-bb992ee6a9e8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Human Resources (Soundtrack From The Netflix Series)
Love Is a Psycho (And I'm a Psycho For Love)
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 0x838d433f483350a1ab51a8b64eecf01612f950024abf4ededc0a995b4a2834d2. 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/QZ8BZ2200897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ade0f2d0a0b6a3bc47aa8966536507c9aa64a225987329ed5f2c7b2434be11. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZ8BZ2200898.
Human Resources: Season 2 (Soundtrack from the Netflix Series)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44a5252d25105e89e96a0cb54d51de27bfecd3ab65b335995157a7034b00a0ad. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZ8BZ2305138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20875cde80db58f88dde96bf84db71e73c48172187d8b10d3e2f92a65410c800. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZ8BZ2305139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8507f50e9ab50299b717c3dfe21e543e02f600fa0cec8af3f21f05980be8f57d. 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/QZ8BZ2305142.
Best Friends Make The Best Lovers - Cast Version
Super Songs of Big Mouth Vol. 2 (Music from the Netflix Series)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x108adb7b149d0030fe840f367ba8f93bacf814c5a9524b3de2cf7444e2dd5a55. 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/QZ8BZ2202444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c688e270a7bd91a6a6840b32e34672a78bc6dee23b4f5cadbe03ddc095176ab. 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/QZ8BZ2202455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24cc668d1c682f16c51a53f434326d24b1f4818f15972200dcbeb02c91cfc617. 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/QZ8BZ2202453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96fb1fdcb04bec41d691f4f38b3523345d218f7b757e007aa127a7158df003e6. 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/QZ8BZ2202443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe445522f078ebe2137bf51e6cdc6fd71e3115182c9df73dca540550fa9992d. 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/QZ8BZ2202446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde3e48ebd0cda82152e0c185db808f79fee4d2342a6816f5614f94bcddef052. 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/QZ8BZ2202451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74c2e35d3c44dd1f889c070859055b1e2a59baa099c6e6f10a82f88054721373. 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/QZ8BZ2202460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa426de7cd33d55e1df09ffb1657f5aaa2ccd3e02f938ab83f4a30f0f9aa9473b. 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/QZ8BZ2202445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a1d3d0775d6dfd5212a1a0bbbb7cbe2eff588ba8ce5b9cfcc375cc1ed588f1c. 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/QZ8BZ2202465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d58632c86942d365be337b8b51ea7650a7c991756a1e3407f7052d28e4597eb. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZ8BZ2202454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf581e9455286e71e378ebf5c6f36ee12cb50c52490c3886bdee0bd8c79e5fc6. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/GBMNA1200399.
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