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 0xfa564187422d174db89bdaf51f1f6384e7732dd5b9fd3a94defa298a5642ec1c. Chain 2 (Bitcoin): anchored in block 953743 (2026-06-15T04:52:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a25e4175-0762-44d6-b844-05c5edefd003.json and https://artists.proofprofile.net/proofs/artist/a25e4175-0762-44d6-b844-05c5edefd003.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Seine Freunde kann man sich nicht aussuchen (Remastered)
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 0xc43ccac492a510192181291c357bf1462c075af0c732b132170a71c3ea20bac3. Chain 2 (Bitcoin): anchored in block 957249 (2026-07-09T02:31:37Z), 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/CH6541843279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d43cb46c72efb21e80c2ee62332a25345cb54e88c1f1a0331289edc68ebce5f. 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/CH6541843280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17eca56fa9819587f29f835379b26b0b952f942f5fda66bc2387a630edfb2b94. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/CH6541843283.
Clowns in Wut - Ein deutsches Herz hat aufgehört zu schlagen, Vol. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdef1854efd16fc6ec254be0b2c77c4cf134b200998e19a1e4a020e0e3f8596d3. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/DETB41500315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe053a96444c4c6dbd7e501e0602247673acc2b57468c8819daa041153ef1fe32. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/DETB41500316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58abd0300ca956c904aa811016659218358886b019833f036eaa8b6fdc079f81. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/DETB41500318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22e5148e902d19ee3a4bc841b9251a3d818c1f160888f1aa1cb1441993d4c9c7. 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/DETB41500319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b9296f811ad8e3f3cc83555bf2772e39f7c273d981f3bdbfe75ed043a1fe1f. 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/DETB41500320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e4c42cf6aa6160cb12b2d90ed33a771fac4a898abe9557671a46332e2b01c8. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/DETB41500321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd4695135d572236b313495a43d4e7da238ac4e478266d561ae7159799abbfb9. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/DETB41500322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe22cf7dc326580fb098ba87cd17878c82e5d888f02cdc6c9f2e9ba6cd08d110. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/DETB41500323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed4c11e51f03576cd6eef2d05550dcb67e3840aab7a2d48209816e25471fbc8. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/DETB41500325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3642dce6da11266b86ca9ddb634be05ca902b799fc40bcc433f617db396e762. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/CH6541823633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f92ef9f058efff1aa65e2aee4d44532d5a6976e937ef2fdda20efe37b435442. 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/CH6541823634.