Mark Anthony Owen (born 27 January 1972) is an English singer and songwriter best known for being a member of pop group and band Take That; as of 2024, the group have sold 14.4 million albums and 14.6
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 0x0d5b302bb99cf920dbb268185b0a58a6845ee80998ec3af0d52c0d953032e0f9. 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/94baa737-23cb-4dfc-84ff-99c4e0f5318b.json and https://artists.proofprofile.net/proofs/artist/94baa737-23cb-4dfc-84ff-99c4e0f5318b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Four Minute Warning (International 2 track)
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 0x235a284e04d6e568d4c0a50a7c9f3c2c1d4fca0bcd0754c034b9145fb2f79d38. 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/GBAAN0300196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9beaff456ad7e26063524e1c9c33fb59fa710f5ff37a2009f045d295eb047224. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/GBAAN0300558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x235a284e04d6e568d4c0a50a7c9f3c2c1d4fca0bcd0754c034b9145fb2f79d38. 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/GBAAN0300196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25eec04846cc476ddec966eed909f3bd8c0e178d4a457ce36d48d88cc526f72. 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/GBGZA0500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1afa6f27110ce0a7106568d6892fd4fb3e9f51dc52011297d16fae69981e90b. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/GBGZA0500005.
The Art Of Doing Nothing (Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd573f5e976a5dfecd2c1e1ac036ae969ab88a36bf7ba25af6c375203187ab11e. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/GBUM71301860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d91359fae39fb01229b3c3289464fa51bcf938c33a9ea94e77c0a5d2b4e5997. Chain 2 (Bitcoin): anchored in block 957526 (2026-07-11T06:03:28Z), 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/GBUM71300179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad4bb79807dbaa776c3e8d50f78f8cc3bfceaf173761966b8460be00efc56760. 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/GBUM71300173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfd79f991c50e88fcbcb1bf7e3aae412a4e3412a6c71b5f3117bf887deff2fd6. 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/GBUM71300183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c3279750cacccb538f25d2ce9ff6d189b07136c92a8cad4a9c2026cc0857e58. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBUM71300177.
One Horse Open Sleigh (feat. Cameron Tyler)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64ecf5e520d142f9965f87d67d14c96a0ac52c3b7e387f476d3da67e5d4a8331. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/GB5KW2201874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f4f79530c603f2764b555f2a6d3ba55af15f58ca67a1c0d9124cfdada36f16. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/GB5KW2201875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9df98a7865a188ef1a6528d36981048c6f0a1ffa2f1ea460326aac2cbd0f3c1b. 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/GB5KW2201877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5536a5c358d6d575cc2ddc16e11785dd42de08255e80a1076c342c45cd3874c. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/GB5KW2201879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x739d31c43798bc7f13ff54cdf409a98fc28c683c671616bb419f73b49b9e407c. 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/GB5KW2201880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f0763e650b68f530c7c9cc5d8caac82d50d657eb7bdb515943780311a8730b. 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/GB5KW2201881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54dfd5307061339de9c166d1962314a0f35e1a1dc08a8a63f175b6410d82077a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GB5KW2201882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x231bba97ff904ccf38fe689c304fb55f3897ef877892a13c89fdc24c310871a9. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/GB5KW2201883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa727227645a4c2007785a31394862960a8c5dbf17ec4a7258e87c761e3112223. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GB5KW2201884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x235a284e04d6e568d4c0a50a7c9f3c2c1d4fca0bcd0754c034b9145fb2f79d38. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/GBAAN0300196.