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 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 0x95b8687bc6b08de75580f4160a0713137ebf4b298810fdea86d57f762c329050. 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/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 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 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 (2026-07-20T13:01:04Z), 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 0x78cd1cff5ab3edfe22dd70b3f665643cf8e54b2e3e95ddde483e1b8b576a2555. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/FR96X2225436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc4ca1fd74aba106309ed585ed94703577833d12d6147cea82ae370175d3b295. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/FR96X2225440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22a224494ffdf68add14f9b68ea9195236420cbd445687a98646dd1c05a3a1cd. 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/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 (2026-07-15T09:47:57Z), 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/CZA210000558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd20051e68359c82574c05d6ecf648207d3bcb59c3e4c2de3c47d147041dcf167. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/CZA210202967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f0b4f7b214f8bb23395a662fce3d832450ac75b7b36169e36732310ade2825. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/CZA210202968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb678df111ae74b018f1c944613754a8f33adc3adec791cd5a7d5feee8b721b96. 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/CZA140500129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288ab3213bd5de0399e67a865dc246680797d237e53e224903f042272616c283. 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/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 0xd7913897d54811c70d66fcfd4a2a61f5d318cb6dd4922614ea5498ddc6c43e5f. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/CZA210700217.
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 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/SKB811300314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25322d1a9e16dc1d47197c3ba956625392ffd0b99c31a4be1095e2fe14634d39. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/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 0x96b81147e74a571ba0f885f27974080d4cace3473d230a137cbab22bdf25f3e1. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/SKB811300305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x837bf1b3ed4937e6c8451e335973205340c3c7391feff15d0409206eb0968d50. 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/SKB811300310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1df8417cc78aff06606f8958fbfd9cea3e19377f18cbe36b21a98023c9c52a79. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/SKB812000410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5f5bcd02aa91c6cf87cc8ee00d579187847dc7a4dcadcbc66a591487be2be8. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/SKB812300415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x348e1a8aa9fc4fcc36a6dc1c3be2e6df94db01fc388fba92dd680f4a3e1ae54a. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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/SKB812300420.