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 0x4e7c37921344f7c5c80cb3b8215bfcb8341239191352e395f69b7c2cea8e5977. 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/36cbf962-a725-450e-adcc-bb448a81f1fc.json and https://artists.proofprofile.net/proofs/artist/36cbf962-a725-450e-adcc-bb448a81f1fc.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 0x644cbcd14242b8c26cff099fb10c565415e4da28a0bca0a90475064cf5956376. 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/QMUFZ1100026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de4b9703f798fded08ee795974ff445b0f43b9e0445824244a39d10e1a84aea. Chain 2 (Bitcoin): anchored in block 957671 (2026-07-12T07:35:31Z), 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/QMUFZ1100029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x900d5c9f995160262701fa87155b80a9431580f4160e6b487668b90086735739. Chain 2 (Bitcoin): anchored in block 957676 (2026-07-12T08:20:25Z), 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/QMUFZ1100030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec03f175de98d7196343e2f94b9821310e45e44af9a55f9dde19df7b8dda1ecf. 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/TCAAW1185408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74807fa0b4661e2e8ef5c98147bbd0d33dd7330dbb751df6fa37f8e543eaf259. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QMUFZ1115000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4126c7b1b272621abe7fff229139ab3eacb57f2d024f9ac5b8257600abfcbccf. Chain 2 (Bitcoin): anchored in block 957711 (2026-07-12T13:56:57Z), 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/QMUFZ1100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f48b21ae2ef72e516cd79bc1c63c35527494de8394c356733b27758390c6fa. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/QMUFZ1100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32522093b5ade9138e0b925888c1bb5b4012237e4162988dcce6f2c236146bce. Chain 2 (Bitcoin): anchored in block 957711 (2026-07-12T13:56:57Z), 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/QMUFZ1100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e6d443ba85ef422dba8f1baa3f72d49c8a12fcbf7ee80776b019020682db8f3. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QMUFZ1100034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2922a6ab2be0948f8d564d212d338a565abee2b57854310adb4bdb27f0c17f. 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/QMUFZ1100038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa88aad9a9f8960523a76528f9f1cee09399586f0c980755bcfc177b4500f1f10. 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/QMUFZ1100039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba673fb83fe8a11fb1e8647433c8839bdaf9b73c9f6fd338f442286ce9e456ac. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QMUFZ1100040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x285e46f8a94b74ce8feadcc1399b7381610b22da7420c3eb0ced1cbfe6f02dce. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QMUFZ1100043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb31165cc31c2f139cf3ff280cff4f77ffb00649095159ff4fd888df1a4b55658. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QMUFZ1100044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc464d71b93d5ac20242ba9297ae01c8f109b41016d0b2c628b6db3cb00879a6e. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QMUFZ1100045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeff4a340b61e00e48c4488450e8a719c85d478fd6531f356588ed08d36d5cbf. 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/QMUFZ1100046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21204e3cddb5690f5b093395ebfca4ff2f4a68c74606866899a0876f37a697a1. 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/QMUFZ1100047.
Sometimes They Come Back (Revenge of Slashback Video)
Grim Grinning Ghosts (Haunted Mansion Theme)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9585618e795a848752aef86a421fcc8c855a17654cdcf81d8e71a714383fe94c. 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/QMUFZ1100053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b101bff307d92551b6e82e51f81a8514f6cabd0eab4189770c6c8bbb982da79. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QMUFZ1100054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85f80257f54c48f91895054797205b445001b0be2a7a48607ac8e77ff9b4fd02. 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/QMUFZ1100055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbc1a327c5a6a7bfd7314c3d393a8772989f1d34d606e2e8f389cf8826d525a5. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QMUFZ1100056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b5457e21988645bab7dc8776eb3ad9fc25197832a665b919996a6b3fdc11d07. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QMUFZ1100058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38007ccb29081454bb38f216424251a52ce59dd079b250dfd2906bb163c522d2. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T10:56:44Z), 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/QMUFZ1100059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9172ea8fa73db6f2403c4e3449f1de4dbddd4a8cf11b7339741c5ad21f8f4096. 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/QMUFZ1100060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b1e399264f4f14509547b03d81823328edbe4e21b722072f00f2d237b8c5a5. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QMUFZ1100061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e7c2ad4d88d4ec8d169f5b3a4a252d64d14e064aefd30aa7494f44e13892531. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/TCAHN2320061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x825113b91e54f4d5577e485174fb73e2328fe1841fd896dd79013b4cd7155414. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/TCAIX2400406.