Sir Christopher Jeremy Morse KCMG (10 December 1928 – 4 February 2016) was an English banker, cruciverbalist and chess composer who was Chancellor of the University of Bristol from 1989 to 2003, and w
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 0x057c99861b16fbd33e0525afdc99525eab8d8b055cf0e593c2249a1f206341ea. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e8be3474-eace-40a6-bce3-0e341484c391.json and https://artists.proofprofile.net/proofs/artist/e8be3474-eace-40a6-bce3-0e341484c391.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 0x9f1b34dd5c8e9a428905b71b4b8b13b72ba97b7b5848d828bacf886e894c7870. 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/USSK32142789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f26b11a99bb2a8d82d813383392b0b9822fd9966e991723f24dd1a196fbce37. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:29:55Z), 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/USSK32142790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2f6bca4c59cf55ef764a513aaf60a7a6aeeafdbc771f1b3588d9ab6e2edfc82. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USSK32142791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67eb3a614b5bb9291527beaf26a7d7098a17d18636a3de50d328f576f90a0fdc. 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/USSK32142793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ba9a8cc3dca6d337763d4f1a195819a077a6403e5e9a11dfcd10608b8e1e69. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USSK32142794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b0ae919e03286eab7395ec84ef796e7a2b6f1d4185a3b73206aaacf04053047. 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/USSK32142797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x516841ff6605e660489afc18e6184d2b4b8a238f68d8d0b9a4b0d1ebaa6743ad. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USSK32142798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd1e8253a23c8dc2a55ec40d7b68f49d1f5c8c490c811b89d9c19ca80d2b9205. 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/USSK32142804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x595ca099f2d1bd89700c19db1cfe5048e969d52cc20fc9bef7935d2c2d50b612. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USSK32142808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44629352af9286eb2181f65a02ef10d5a6c89902402044473fde896fc5943fd8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USSK32142812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee911f2f5a658b84098f3a12c641896d56d5186545e3431f579610a692edc7d2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USSK32142814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ecc3609746d4adcefb8051915f79fc1ebecd7b3e9860ab34571a6d2b687ba59. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USSK32142824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1114b5a179ba44707298b1022d1449ad0055beb7a96d20e3d5db7d07b0a4ee84. 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/USSK32142825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e6392e5c691f4e13cb289634c39af522b7b134539b5339188fbb4844069ed99. 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/USSK32142846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2866f1a81fcbf82df525a0378e3198a0e2deecc42efa4ed30de202a3096f1c4. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/USSK32142795.
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 0x01a1fb25070f03850f69261d1eef8af6361d1f87aa983113ce722a783219e3c0. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/USSK32142818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d36859202036c356dfd873a01c44c105d05e8fa576af3dcb6664844ed8f8b6c. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USSK32142828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1c2895e2bea957beeb97e781b257378d5fd5bb926a41fd0b986d09cc5d3c0b7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USSK32142803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ba9a8cc3dca6d337763d4f1a195819a077a6403e5e9a11dfcd10608b8e1e69. 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/USSK32142794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x787ce05365e2d1db420007fcad93f8163ca4ccf4c1362decab844476f80f0128. 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/QMQYB1710901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2a49e26b13739d53629be89bbd5d0d2797b3e7aa4841862ffab70167e8b43be. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QMQYB1710903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x724cb566f9071e4e086b14018e1e3ab8a150ddfc60f61ca6585897ced44905af. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMQYB1710906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19af999e7f9032f06afcbcc0e1d0dcef55f41bb228f28fb3dabc8bd9b95df144. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMQYB1710907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a9d23fb47405abad563e7f4f9b564a210583ee1f887cbcec3d6511a363e574. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMQYB1710910.