thumb|Tabletop wireless model U102, c.1947 thumb|A 1951 Murphy television set held by the Science Museum, London thumb|Murphy B41 and B40 naval radios, 1950s Murphy Radio was a British manufacturer o
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 0x41a1130609ea7f39524497d3234477b617a9fb469f7703a352460bfe4934dc8d. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c8df78e2-62f8-45bc-b798-1b5b761818a6.json and https://artists.proofprofile.net/proofs/artist/c8df78e2-62f8-45bc-b798-1b5b761818a6.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 0x817aeea292d55d87e5653c87d549b620a815be9aa1a1680a20bb7712dd56cafe. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBSMU5621863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7c0503f5a444a797bff2798c997bd16ef6bf18fb7536d3aafa73f4eac519083. 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/GBSMU5621864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb20a6596c1e11c8803b5f1263ca69425f380f99f8e28644e7c450b248a78eaa1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBSMU5621865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9fbc33939409b4772a33fe12d00718375decb34df38c8880dbc79e503a6c975. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBSMU5621866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb8202c759670e38fd1e5a238ec40391de143c0ce2b26b048c22519a7c0d579. 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/GBSMU5621867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe56679f96cbc74d5c326a2afb1106103076082cfa9f01f1a5b410e361143f5e2. 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/GBSMU5621868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e6890eb6cdd0e5bcda1eede1e73ba824cd9b1a192ce377ed792304de0dee04. 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/GBSMU5621869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x884c8f24a832b1d7195a61ffc8aeb323a2ad616fb3dd53f5bc59cf33cf4b95f0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBSMU5621870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d3a9351fb2f2ee1289b22a1066df16d85a2609e274d6a6d5112307a1ab9a3af. 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/GBSMU5621871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab178044482e81ecebd73192b0107f577b1dff52ab5f4e8aef3229ffa3cab14a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBSMU5621872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d89aefeb21ad8848ac98d528a13cd4e2b50be1c9d09175eb000017402f46e69. 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/DGA0P2317648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fdce5f300505cf35e81bd8b8a5e4c355d3a9c81cd5d742ffbea49ce745cfcb3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DGA0P2317649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38c68b7904fb781733605d0757f610ad6c8e0537c869ed0cdf21242acfad6495. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DGA0P2317650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd2957efd40474b7f83707e9ff64ccfb1056c8a4bbb1b4df3fd6688bfa5ae6a3. 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/FRX282318655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53efaac7d65cfbca983283b2cf36cbaf53836856cb43a7c33f3d1fc69d172f00. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FR2X42108688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63610e5afa3a60eb8486daf798bac2649d47cf62bcd87c2c0bbdfd2f9b2273b6. 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/FR2X42108689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cb664b472fdb6157806e1ce2b4d70826aee04fc20157ac81d26356c69fb6f0c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRX452070793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee2893709c267d08f98a56bf119806a78ef05d45dd67e7cd2d637df2e6697b91. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRX452070794.
Murphy Radio (Japan Release Bonus Tracks)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08e468ebbf467a167ddeb72b1ec2010e6eac7c4b35324c49ba0b9d05062a0a06. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FR10S2212636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d7b5a74dcc4c983e88bb2a0961147b8271416254691dc04d0059d1b20d9bcec. 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/FR10S2212637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x187aa535819d705bac8c5689964f121029dc3c162ddb98c384b3d1089c16a6b9. 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/GBSMU6662518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9117310b650d860d76aa8039e1fd0a07c553dbb5b1f22dc1409e554714f2698. 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/GBSMU3604213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb7ef941d97d28779c1f837e1368ea96f06be07595e8a6ab92c256a382607b8e. 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/GBSMU4431598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9f0fd74a21da957bb89fa2bf1555eb1c4e93acdeb7aae6d3537ac92c09f05e8. 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/GBSMU6395455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b83872b9da5bbf6031f550acf593160aa7c2109b41ed4e47511fd62d00f0ca. 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/GBSMU6395469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7064bf8fe44baebe1fad187c6751ad4615465e34a682838a7203141b91d76ff. 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/GBSMU6395542.