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 0x44d937f1fd7fca482284036f0f2a2ed0b5ccda57fd6acaa38b165f391dc8b8d5. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eb4c25f1-5164-4e49-b52d-03eb7aae9424.json and https://artists.proofprofile.net/proofs/artist/eb4c25f1-5164-4e49-b52d-03eb7aae9424.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 0x3d2f220a0d00f5f14e7ab62f441524a064ce39fc1a5a2106213763c033a6ad8c. 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/QZFYW1931039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37889620da3952bda077120f37acef8404d717bef020005860567ca6871fd58b. 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/QZFZ71991052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb79458e2380043a115eee47c7f14ee37e345a5dd7fc5587f7c0c506087cf2225. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T16:45:22Z), 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/QZFZ72093353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdddabe9c268ca44bfeac37edcd9e2bf70d4d86222a28e34eca679cde19283451. 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/QZFYZ2101622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa771e18cd8e5309e9ac9bb0d2131bda9a8c64e036241ebad1961af91ffdcbc78. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZNWV2113781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecab0da846ec302f384a45e5cf25e33a1eaa6494fa300ae9913f00c3db97d7cc. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:07:48Z), 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/DEQ322200243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c55389ced73983d214e05f42cec77889b46dd03c13457a7a9fdcdb96e6f97f. 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/DEQ322200358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x327546d7139d992afcb05f7307b2fcffb6fa213c7c4b5d75ca82a5d952ba0720. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/DEQ322300051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bac87870942c9f0b637ee9e9dac3e15ae92900a1ef67710f2d634701077e6ac. 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/DEQ322300210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97da96ccb61ce569a6b64c53a7c9606a19e8b00f828fccd13be05e9369c38bfd. 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/DEQ322300463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8980a265ff50acac7e8832ea14bf7c3e1b695d2e1ab49db8c2a6a59822529dc1. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/DEQ322300514.
600 Tage später (denk ich immer noch an dich)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1149303139671ebb6985e5e452be1d8fe133c7dcd306b629843b80ced11afc77. 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/DEQ322300568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d975be64fbb892beaeaed106ccfffd20fde0e0ad520026a2043284d542edfa. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/DEQ322300570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe5b1b1b8117fc7e9c9bd2dbbb026f840221b0596df8d780251d0085f07029a1. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/DEQ322300571.
600 Tage später (denk ich immer noch an dich) - Live Sessions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c355df66f66cf6c05e81c3106e1b850936d6c968d0bc3d8ba450f7c2eee403. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEQ322400102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf771f37b9d893d08461d6e76e84b02952a90b5cc02510d26a01502ceb1818d24. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEQ322400146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79e8e856dbc64d9164f34b188d1ff00521ba4c32807aefd0db9e6a5f20764efe. 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/DEQ322400147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02104dc23ca10fa68cd6f0d14f616cb534844d46aea860cb0e9f4be7e2a79e45. 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/DEQ322400148.