Irreversible Entanglements is an American free jazz collective formed in 2015. The improvising quintet consists of vocalist Camae Ayewa (also known as Moor Mother), drummer Tcheser Holmes, trumpeter A
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 0x45df82f4020077d24bd2487fdc2b6bda1bc44fa6d8fba55d3677910f93b286fb. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/afa2e0dc-c823-4bb0-b528-ae9e2bbe813c.json and https://artists.proofprofile.net/proofs/artist/afa2e0dc-c823-4bb0-b528-ae9e2bbe813c.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 0x94cf8ce2586669720377dac556e1d1c3604ffdf165ca844197aba44fd05c6f5d. 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/QM84B2149002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc7ed8300c9139f9cd715e0a41d506e2ca5332bdc16a9173cf7f28d05294fa23. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USUM72310144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76306fe9ffcfff643679942a458d9cae7b49579c33bf89267c60f893fe087327. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USUM72310145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ec46c19ed006997d3335cd8b293ac30b1b48222d91b38a85413778cf50086a. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USUM72310146.
Irreversible Entanglements (IA11 Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d71222c4219bbee3ce73dd19423a19c6accbd47c98fe4b83a3940bc36e6317. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QM84B1714001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7559fd39bb8670cf5d278b3c2a96a72e4c99f67f488fa4cae15d15efa1c0a72a. 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/QM84B1714002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d71222c4219bbee3ce73dd19423a19c6accbd47c98fe4b83a3940bc36e6317. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QM84B1714001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b60b0cb5e4ae178f28b319e8f3fdfb8108502ad768e841443604c4084de104. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QM84B1714005.