Chris Else (born 1942) is the New Zealand author of novels, collections of short stories, and poems. thumb|right|Chris Else, 2009 Biography Born in Cottingham, Yorkshire in the United Kingdom, Chr
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 0xaf12c6c5079b0b42641575d2ce246ccefab0ddd7d9937993862a404c23578a8d. 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/9b4fc7bd-a32d-4120-8d2e-b42d48cbf49f.json and https://artists.proofprofile.net/proofs/artist/9b4fc7bd-a32d-4120-8d2e-b42d48cbf49f.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 0xc2adacbf0872df07f0074407416f7e2711b19b8c1cf3322d517092ffd382d26e. 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/ZAUM71900287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a7dac61e3bbd65a25dc4106698cab15ed0b54487c30605db8c1a3235ffe7f99. Chain 2 (Bitcoin): anchored in block 957642 (2026-07-12T02:46:48Z), 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/ZAUM71600125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19f9427e1db764be5d5c573a6f805f6142e337380618365ad76972668b42894. Chain 2 (Bitcoin): anchored in block 957642 (2026-07-12T02:46:48Z), 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/ZAUM71600129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eaccaf3f579a59ea19049ae27a4aedfe55b9d03d33ebd417d513b5e650dc32f. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/ZAUM71600128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f868ff3b51e246cccb670ecc63d58306ee23281d2221ca192a8fd05a3c22578. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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/ZAO862000333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc236eeba11683a28516e428718bc20b0022b0a2907d34a600fee771b1b4086bb. 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/ZAO862000334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ff13a0a46540d8dff1fc6a7eb9e4da4cddcf45e50e872d49eb27a9d637caf8c. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/ZAO862000339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cc51274064da8e423e37f087e3f6487df4fe73a51d6eb637552b37bd94fbfcc. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/ZAO862000340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf4133ecd5a03052def4963d6323343cdea20d30ccc08149e232b31a064f6041. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/ZAO862000341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5419ced9d4f30bd800ff5c03087e69b598c9cfd373963d7a2e7424c6744cbe89. 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/ZAO862000342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf469bcf9ef02a38af39b37a3d24b2c6ce3f3fbbea05da28ffb136dfeb0f92417. 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/ZAO861500194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x260c0aa44c9994e49b68e4af9353366f0fac7b32e1e7e56ccd853681180379d0. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/ZAO862100085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b3d1a40022b22643e8b0fe44597f824847e0850f3f1f1464b46255aefa368dd. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/ZAO862000344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d1bc266fd7ae2990cd6dd547a454224dbc6a8707399229a9585cfda47ab101d. 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/ZA34K2200729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x845ef371796124762246ddd985556054eb63503fd72074f0b09b3aae98b3167f. 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/ZA34K2200731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9deaa002c08e896cb35f4023db16b1c2424b33cb5f2813164bda3d4d3fa05b90. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/ZA34K2200730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f6b540161a59746182de42103e7752f92ee4835e69949941239c0db86c8958a. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T02:14:33Z), 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/ZA34K2200732.