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 0x952dcacdd583fa1a516064efb974d056be867b3bc8502858d73e14985a8e7075. Chain 2 (Bitcoin): anchored in block 953695 (2026-06-14T21:42:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6fdc6644-10e1-4fde-84be-b8cac49f3641.json and https://artists.proofprofile.net/proofs/artist/6fdc6644-10e1-4fde-84be-b8cac49f3641.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 0xfb49a2302b21dd1f0daa35f634ae8dbfe00eee1d2c314f541afcd277c009ef2b. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/USHM81924991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9272681b673e442ca7ba66e98dc5a7045560bc9ea3f258bd1a17801f337ad0d2. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/QZQMF2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x022a3a026976c96c19cecd3e6f5406c2e99ef8e4d36d1bf0e44dd5e62f98da7a. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QZQMF2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb27f9e1ea8dcb35418e15c89f0e22ca1c25aa4957b90dce29216e4b8d15723. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/QZVGK2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a49ab289fb3205e4e4ed3fe0ec43bbc8785f9af02d2a7d2864f44929cfd1585. 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/QZVGK2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe532950c8800df02bc418b38ea170a25e67ddc420fdce3af08458cb50c261fc. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZVGK2200004.
I'll Never Get out of This World Alive (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bf09c5db0624ab60ca85807d068cd75b42256766437948fe3dcff4672a43dab. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCAIB2464760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c493d59b05dae6fd2f885d1174694ad5f3a00a59cc5aa9b9807a81577fd247b. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QMEU32500546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd49d92f448c73ef216169a36c804cd713f2b87a75bdd61793510209b9d88fff8. 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/QMEU32500548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed61c5901741fb51978d567f63a81cc77942e5c279b3d5c64727c92a414dff59. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/QMEU32500549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88277ba6be49f3a7741f772e288d77991e46c4a04c9accc1d47ab9614218c384. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/QMEU32500550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1048260fc8023e304b678559c5cc013b2d0b38b811fcadf28db8e54be1542937. 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/QMEU32500551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49af079b955001aedaae31fed2a7ca945d29f9ab6529719ef30f81e41780bb14. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QMEU32500553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb35768c23857e70fea24a91892e76500ed65bf0954fbb646b5026a4804036e. 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/QMEU32500558.