Polemic ( , ) is contentious rhetoric intended to support a specific position by forthright claims and to undermine the opposing position. The practice of such argumentation is called polemics, which
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 0x95b8687bc6b08de75580f4160a0713137ebf4b298810fdea86d57f762c329050. 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/79379aa8-a166-4760-82d7-a4e13c84d7c8.json and https://artists.proofprofile.net/proofs/artist/79379aa8-a166-4760-82d7-a4e13c84d7c8.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 0xce5eb671727ffb63d36e9dd9cd5ff2a9fba59c69b8f8aa955002a9bf7727f833. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/FR96X2225429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaecc66067c6c6fdc50824519517882d1bdc069ddbe4ee2fabe4ff23399f7e978. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:52:59Z), 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/FR96X2225435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc4ca1fd74aba106309ed585ed94703577833d12d6147cea82ae370175d3b295. 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/FR96X2225440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22a224494ffdf68add14f9b68ea9195236420cbd445687a98646dd1c05a3a1cd. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/SKA139920102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f222e446ad92644b19798158be5da008d0bd929dd0db6b471913ea073b855bc. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/CZA210000557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f249e81a237d3de5ae1dd043a24294c2fa611587f2ea2f438bae5b766a133a2. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:59:52Z), 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/CZA210000558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd20051e68359c82574c05d6ecf648207d3bcb59c3e4c2de3c47d147041dcf167. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/CZA210202967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f0b4f7b214f8bb23395a662fce3d832450ac75b7b36169e36732310ade2825. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:19:10Z), 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/CZA210202968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb678df111ae74b018f1c944613754a8f33adc3adec791cd5a7d5feee8b721b96. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/CZA140500129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288ab3213bd5de0399e67a865dc246680797d237e53e224903f042272616c283. 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/CZA140500131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x263bcba5ac30d0362cb444dad97103f38c7fd7026a5017423d39a78e0395ae01. 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/CZA210500605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x586d94c0c473938aef4c555216a8bc8e3c06b8f0bcaef737e4461ff5fc3c54cc. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/CZA210500604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7ae32710793910360d32bf940f650c65084ba0fca5b799cf8d481ea15ea93ec. 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/SKB810800101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28dd91427cfbe0e694dd09e668996b2b45199ba4bb02ce268a2d0a158fdcc99e. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/SKB811300314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25322d1a9e16dc1d47197c3ba956625392ffd0b99c31a4be1095e2fe14634d39. 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/SKB811300315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e9a308c02e5094c2ca303453091316c6cfbcad25d7a828b927d41695e26fb6b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SKB811300301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6c4b7264fbbba4dd7683cf3c854e6456e06a284f04389576743902e8672ccca. 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/SKB811300302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb383bc7f705581742b9faca28444fd1a2920000dba94375fde9e98570cbc446. 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/SKB811300304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x837bf1b3ed4937e6c8451e335973205340c3c7391feff15d0409206eb0968d50. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/SKB811300310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x348e1a8aa9fc4fcc36a6dc1c3be2e6df94db01fc388fba92dd680f4a3e1ae54a. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:07:09Z), 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/SKB812300420.