Marc Canham may refer to: Marc Canham (footballer) (born 1982), English footballer Marc Canham (composer) (born 1977), British music composer
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 0x274b38afb77a0bbb2389260659240c024430024ca33dd73a6b43f1f9e042802d. 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/9ba511e5-d599-4763-93e1-c683b1431b1e.json and https://artists.proofprofile.net/proofs/artist/9ba511e5-d599-4763-93e1-c683b1431b1e.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 0x6ea3fb54236d7acdae9964a6f39ea1a8be15db0f71bd589ce45bf8b11933c75b. 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/CA2BN0700012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39b89ce5d55994e415e7965a30562ec37b6158d1f6a11a662f0db6a82928e434. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:25:42Z), 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/CA2BN0700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d2f5a099977b27a98404706277e876a5d7594d054261808a4cc0c81f9312648. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:20:11Z), 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/CA2BN0700014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe7d19c60aa0a1c15a25832265073a69eba83b87de1bf538fe031eb93c08a62. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/CA2BN0700019.
The Disappearance Of Alice Creed Original Motion Picture Soundtrack
The Disappearance Of Alice Creed Motion Picture Soundtrack
The Secret World (Original Video Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe408f8f014cc4be35de60f7915f86880764bf2822505fbe55745dd531bb49f. 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/GBKPL1256245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14752aa81b5a20338eee8f66255a9a2647f86c482d41c02246216d2d1d5e01c1. 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/GBKPL1256246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf33554feefa73efe266aed591f88e6ae9b6a4c69821285baede78aa16f463eaf. 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/GBKPL1256250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f8a1da0e1c1a199bc417612b4e0f7034c953f86cfaf5ac1ecb8bcc1ca88394. 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/GBKPL1256251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bd33cffa9c7c1c0dc92d4a4ca7a892ad971cccf45f51300dabd28bd7b840671. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBKPL1256260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x408251c5f5c74f4f8f9e52e3ed77458642f1e8f9f6e437428497e011ec4d1958. 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/GBKPL1256262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee3e6413e1b39e7d4d0c8889a343007e3778ae626c549565b6deb1e210c995d2. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/GBKPL1256263.
inFAMOUS: First Light (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9f5e6dd3c4b45174e3667ebada4455c4754b1c1411819ea422a96a183a14c53. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/USGSS1400151.
inFAMOUS: Second Son (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb16b29b7bede23a89240e4c74db7dbf51318b1e14ebc1e409f5778bb432bfb7. 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/USGSS1400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd76c4bce4b08c66242796449173751212412340d0ba5da4bd4ed7b367a5ed59e. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USGSS1400031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ee750e0bbfe8fe21e0d9b1906f3b36219907bcb1201055cdc2f640133e96f8. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USGSS1400032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c35c63229320295c0666a2617c8e7cdfbf86a41a7afc9a7e8622fb7b23544aa. 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/USGSS1400033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c84577d0e08f264c2896c403c25de1fd2261b63abbe8b173667e26d666bacb0. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/USGSS1400034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x635f5b58b1e5256ecc8a752758bb8796ca49caa2845f45bf4dde0fcd3151ee1a. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USGSS1400036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeb192b27cebd9a15946d1fd75993ffb622adca8c7ac15277726751bde9f4c7f. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/USGSS1400037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x410817d1212ecfa46d3150dddc997a75700d73880cfb041351a4c8e8126cea47. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/USGSS1400038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d780464a90f4ddbcdcb37d6912b9142419cc960ddf22bd49de45dd3f09fffd. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/USGSS1400039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78a495f428efb8e6ba88dbeac12d91864203e9085693b0876b3c233cc2c23839. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:26:05Z), 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/USGSS1400040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9da7e27bb1b4ab377cc5e8fe9a0680203023c8ab1b250be0392a81acb4164a96. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/USGSS1400041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x507afe8348857fe75490961d0470a52e051fe7f0d5f74622d56c9a2cb278fae4. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USGSS1400042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe50829de2162dea27a396a9d4f1978e7bc25ee9d2c58fa1d9456a980ea346196. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/USGSS1400043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06fb469134876d7890ecf13e9d3a00c5d6e09f8c5f00a129ac262ee1bbde6171. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:40:03Z), 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/USGSS1400044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb713f158cbc297756a9fb9c01d8f0f7ef015a6c5b2db81593d850ef7fd68955. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/USGSS1400045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97aebcf152ce07129a186cfc45c8e6deeb56bcbf6a3b39d23c08b99ae16e8191. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:10:36Z), 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/USGSS1400046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a664639c1459fc7482084e94dbcb117e2f0b741fe39b20d9cea0c3e85a9b27. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/USGSS1400048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47f5bf577bf542f7fb222f585f217588e5c2dd2a7eb2872322a84e55ba1b1c81. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/USGSS1400049.
Close (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a911011eb8df4628bcb76a51e764ff897ffa6b651c79c0a0912c29309dcb69b. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/UKPTT1800028.
I Care A Lot (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b24fe2123b5ffc01e0ecafcd9c6cb55007b9b5c5058d1e0feb191d0d70eb00f. 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/USLS52082405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf321b599127a48ef85691b0c0719f80f55ef33260e0508689227925bec0a401a. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:43:54Z), 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/USLS52082420.
I Care a Lot (Music from the Netflix Film)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b24fe2123b5ffc01e0ecafcd9c6cb55007b9b5c5058d1e0feb191d0d70eb00f. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USLS52082405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1276ec16bae26bb1a765cec36401d3eb93433c445b62d1cb7319d5dad783008c. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/USLS52108633.