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 0x8be7c9277911a53117e6cfd5b9838c4894c5edb28d6bf715570a37d7d22a64cb. 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/0a13a9de-006f-4ea5-b6ee-2781c1ab0d84.json and https://artists.proofprofile.net/proofs/artist/0a13a9de-006f-4ea5-b6ee-2781c1ab0d84.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 0xab1545ee3a6e7d634a43e556d3961c67ce0ae787c28ba1dc2fc9a592af44b471. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/USA561055007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e789f27fb0cd3a61fecb4d1424f35bde4d7785d92e49251c2deb61e70a6b38b. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/USA561055009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87235dbbefa8aa56e2da4609299cfac221a7ae90bb29ca498c93d12835544215. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/USA561055012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc88806cef70093d21f6c31b9b39cd3206c1bd09c8d697d9cfee75f6585f1f45c. 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/USCJ81200883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa70306235e9c3b5c6d51b8603fbab92051a298a66cd622fe6dd30d35e4a8c196. 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/USCJ81200885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50846c332aa01d77373a8bb1b01b528a54fca15e42815a7925460e12c722d957. 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/USCJ81200886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f7dd145e3e2d5ead1298cc5d6a879972cb6987bf401ec4c92094f63f8d41f3. 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/USCJ81200887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd72836f2c939b355df69690448a1c6e2066454de045710d8fa8024b44e33d0ca. 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/USCJ81200888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5dbb93f99bf0f494329fb76c98e0a52c4ad62ef5f016d94f06e130771fa388. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/USCJ81200889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5715cd2a9da27cd05f8c70cba7890148d5dbf14a2e15c067980d61d06caf414. 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/QMFME1939066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f5ebe299fe29838aadc0597c4f6ac8a59c9338457dcec57046ea416babca798. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/QM4TX2104054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a435dde8d0a2f26ac65769778fb541d3748ae70b37f6c307c1a0b21a8ceb4bd. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QM4TX2104058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1cbb66c7cfb473901bd37c35f018484efa43add2f49e13849e42bf23c7583cb. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/GBKPL1818314.
Singita Miracle Beach 10th Anniversary Compiled by Jose Padilla & Glass Coffee
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x899c03955d6a85a1b087c793645d3001dc41ec2926540cef0b5cb512800c2bc8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USA561055011.