thumb|right|340px| ARKONA (FüWES) in the former CRC Brockzetel, Dec 2010 ARKONA (ACCS) () is an Air Command and Control System of the German Air Force. Definition According to NATO terminology, AR
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 0xf28299bddd84ffc6c8fe498aae7e5b4083a3aa12801523977e153097041a31c2. 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/6afd627e-fcbc-4348-b428-85fb25c07db6.json and https://artists.proofprofile.net/proofs/artist/6afd627e-fcbc-4348-b428-85fb25c07db6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Skrajna Nienawiść Egoistycznej Egzystencji
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 0xba1103deb4860d5d08567293d5c99de8c5e98b7752b88acf32c54478d5247cad. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/FRX452082986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b67d5a24a87f63256e7301c92be70593c792ad641138cccacf3ff9eb46c154. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/FRX452082987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6cc095a7bfd3c2a5ffddc3dcf6f37412e3a0dda9be22979d4eb26b84ebd0943. 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/FRX452082991.
Zeta Reticuli (A Tale About Hatred and Total Enslavement)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c7873c133df6e58c517eed771522fb7e1760cde2c889efbb220fa2287f7bacd. 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/FR9W11618418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00882110e72da0f17eed8dbe7d4e941f080b45f8347cdd37270bed4125583031. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/FR9W11618419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b8a1facf068dc1f1451852afdd7d6ccf82372ade916b5895fc338fea34caf6. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/FR9W11618420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f46ac1efeb58043435693eecbdd90a6fa31f39c8c956a0e94d07f78f3e8d1a. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FR9W11618422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1442482ed2b3c4cae62a1edbe8f0c6e433ad5bdc2dbabbcb18915013a26a166. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/FR9W11921250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3efac036a31bf7782474fb1bdffd6fee7c53d6f07cde7653ac080aa2db71a0f. 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/FR9W11921251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x670babe259c17e6544dbf9d8d7dd83620dbafdfe6c5e0fd8c1f9463c6c21d298. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/FXQ732400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b5a8107de9b9e9064126704db554df4d807d602e16b1d989090424c4d2c578. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/FXQ732400024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dd59280e3879710ab06b742ae6b117c24eb3a4d003e2b7f7a217f9d9908773d. 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/FR9W11824000.