In critical theory, pharmakon is a concept introduced by Jacques Derrida. It is derived from the Greek source term φάρμακον (phármakon), a word that can mean either remedy or poison. The term is close
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 0xc6c75edcc9b5e3d730243f1e64167c8feadf55de8747fa98f71a43fca1b2e004. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8313f3ca-a0f4-4f4f-b6b8-c59a84db9b71.json and https://artists.proofprofile.net/proofs/artist/8313f3ca-a0f4-4f4f-b6b8-c59a84db9b71.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 0xc23bf08d53a346fe6e54d6d5a961ad30c7ba383268936a4bc6c730bc235ebfe9. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/US5NR1316801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e0dd5cb915e9ad222f4c8836297d9afeffc3fc694ddad94437f0a03987b09c5. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/US5NR1316804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x018b24af1b96a6634d5a9a2d88533986a50627c35e15b7205710dca853ea7b32. 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/US5NR1411701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07c208fd9374e0ead80c0b507a1cd5df7894d0ecbc1eb6bbdebd62ba52db157d. 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/US5NR1411702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9176a975547a14831b90a835b05423bcced028ca91f5a1b3a2531803392d7254. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:27:03Z), 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/US5NR1411704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa2bb4a0fb40933e34f4f3954d190f9dcc993c0896dd1f7b7a02e7158a06446. 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/US5NR1411705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefa08da90656a2a5ed72b895a48077a66375564501afafc19b18aaecbb0949f3. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/US5NR1411706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81a597d9212a03c85f071d73b7487de3a770decdade7bc90470a86ec7621db0b. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/US5NR1411204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e2e6082ca6fccd99e825e6137f6c072edbdf6008e7a6fba1f907ea9e07ece6. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/US5NR1717501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f5c94b46bccf9a17b6e324d957cf88a553f83cbfc3eef65ae844f1df8c7893. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/US5NR1717502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66edd92ef05c37babc080d1c4eeb3166b70b5a860135857bd0eab8525a336c3. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/US5NR1717503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa357dbfa7aa8151bff8d7df44c01ac2387c91d60447725d40091dac591068c7. 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/US5NR1922601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6204596ec9040791076ea3cb5679673ec55741904775c63f63e7fb55042551be. 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/US5NR2435001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc95c4c05e0e516fd40d8c213ff0d2996bb9d9b62cf32e55b0d9bd009abd1b30b. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/US5NR2435002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x967214dee379ab0216276d50b40576d00152cf34534d9bc573bf6dd2510d521d. 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/US5NR2435003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd5097bcdf885dd88580bd780ddeae4afbd5696608f1db54de370a412b6b0525. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/US5NR2435004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b0c1126f88ec1ce9367497569c43e0f25c54e8a22eaed4a226eb4ad7be19ab2. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:01:47Z), 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/US5NR2435005.