AFC may stand for: Organizations Action for Children, a UK children's charity AFC Enterprises, the franchisor of Popeyes Chicken and Biscuits Africa Finance Corporation, a pan-African multilat
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 0x2fd1cb2a2c3d56b64fa54ecc49607e6f820174ab055823fc8f09e95d56f89187. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fd90aabf-41cd-430d-9f12-09deb00aa951.json and https://artists.proofprofile.net/proofs/artist/fd90aabf-41cd-430d-9f12-09deb00aa951.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 0xcdf4694694302aff3a4b83e07a10f344b7cdd593b6bf72f9b1f3abbbe997c4fb. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:54:35Z), 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/UYB141403105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b507a99a10b8fbe5d687cb02e7f0a70a34c912aa1c1084289cdc9e5b0914373. 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/UYB141403116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdf4694694302aff3a4b83e07a10f344b7cdd593b6bf72f9b1f3abbbe997c4fb. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/UYB141403105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e512576232016385c89292211b5f6bd23f360866448cbd2f4e57df4a5fd807. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/UYB141501006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdecc11ecd2ab923c6a2be86979e700776a01c1aa1a7cc64d965472fe349f2936. 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/UYB141501010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e512576232016385c89292211b5f6bd23f360866448cbd2f4e57df4a5fd807. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:40:15Z), 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/UYB141501006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ec382944506530d47c1dbce2ab742acd01dcb6b6017d73b34a53d0cbe0400a. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/UYB141823409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c1795bd912fc47a0517cfbbc29e418b3b02c7c728875dd339ed2097c52b68d3. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/UYB141930601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c1795bd912fc47a0517cfbbc29e418b3b02c7c728875dd339ed2097c52b68d3. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T15:17:42Z), 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/UYB141930601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb820fd4cd7271d3c1281d27dbb8c2b91407c992726d850d0afcc3c439546a54e. 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/UYB142020601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x533a9ec98f62b757fc58dfdcca0fa61790849d3ba935d26ee1d50ffa10fc7c60. 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/UYB142021901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0d89e7ae2efb8a630d9d1bb3b4413665e63572e6771fcdc4347daa48bae47ec. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ARIXB2500653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35bc06b52b883e967354e453e9a856e74d5e297beb081c7e34d40d7ed9cd094. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/ARIXB2501021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf25773f11d216f1a1cafb9af286da2ab252b6e066236545e10d4173bb33181ca. 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/UYP181600006.
Capitán Kirk - Sr. Capitán - Fran Nasser y AFC Remix
Fan de Faith No More (Versiones y Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252a32124481a26485cb1d04f7ac3af6fb7b5a073dd4a95e31837b9790d898e0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/UYB141300303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82e27288e3bf19e69cbb85728e0d71930d1be060e7a799b60770faa309f87f9f. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/UYB142224612.
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