Fufu (or fufuo, foofoo, foufou ) is a pounded meal found in West African cuisine. It is a Twi word that originates from the Akans in Ghana. The word has been expanded to include several variations o
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 0x18047b6b3abd1abab67e65435dfbb2075bb500548777d718f01337712619225c. 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/faffa2de-b9bd-4b95-85d0-acd980bf67a1.json and https://artists.proofprofile.net/proofs/artist/faffa2de-b9bd-4b95-85d0-acd980bf67a1.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 0x61650e018e703db45adb81ea486cd9ce6826386a03ba7cd7e2998fe055d8e6e1. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/UKXN22098437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a1506132b67e7b7228593dfb2afc8933ebeba2fed01636a9a024af0eaf499ae. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/USWL12100329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50f97b6abdab648790d13da8b0b49df02c5d2652077e17a089e6e2250dfab806. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USWL12100369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ee1926cfbdd00557ba547fe48f647b1f43ffff5bd31921975c93c15930e3666. 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/USWL12100426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a243c155cc854f692b533365d786e93b9dc4464370027b9347d12dcf778d4a. 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/QZNW72392065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97496270b9ae92a28b304039061b7d7775283e81de3d67f1aa88825229a25286. 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/QZNW72392063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde704c9ec0543377c7b10dc972460716909f6dec5788d3e015905eabe7976bb6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USWL12201192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4fe0e303db974ba4312a7899a183407071ac03727abe78ce83bda8cd9404fba. 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/USWL12201317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71d587192b6b9f99f388413652e05a13cb391f6a6cfec0992441f0acf5d15c10. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USWL12300116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3430494d46dc148f03f9058502ec681e59314d25c01abc17b9e8fbf2a5fb9fd3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USWL12300117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4917262dbfd0197074fd3a1f855daa8974884922b84f6bd40e97245cee0f1dad. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USWL12200614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4cfe31da87374a0687f5c351aacd312343184a00b2653cb8b958df417832afd. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USWL12300118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05bcefd4fa78ba157c1c203398e1f9831b326fc836dd00e1c38e8dd4b6529f3d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USWL12200738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbafdb8014879e345a28f9e45f3995ca55bd9c9b9c1ea58a4118d00355189cd7. 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/USWL12200229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e0757ccf927a93ec9ab2e3ac9d3fd13ac624a4b4f1b7b4de05d8dd9681a2587. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USWL12200659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2ac6a603d2d461c07ab5008b8f0dac79ffdf67ba0c200fa1d9e1d80c2c130f3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USA2P2420386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b12b4a7f47842a51f4787875a33f5fe3c232c0ad69a12b105fddee1cf936ab. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BK4DA2319413.
La Familia (feat. Mathew, Fufu, Jay Oc, Jey Blessing & Lennis Rodriguez)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fcd968b8b20ba0c4a9882810013add3441eedb5c3ff324fb10c718d64c46ac8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USWL12100687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd24bb890b811541ed66ed76f771a0fbab268eae31d81af7d85c0704236faf646. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QMBZ92308370.