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 0x93d72d8c6f7082bce2b92ff0799cbe9e92e778a2907937ab1b05202c60ae5d65. 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/686a5d01-ba4e-486c-a201-846a37428a13.json and https://artists.proofprofile.net/proofs/artist/686a5d01-ba4e-486c-a201-846a37428a13.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 0x7f8e56a379ea88cc01ccfb0d0642cb48db6e4db9eb997a1601d754d2fbc05265. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZ93L2120006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf101b559c28d0a056792116cbb3585844fe51d98945234d1d71d11fab7e0088c. 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/QZ93L2121228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4badb5c1b3a6dced79ba76a631598e66ea2e8bd558bc4e823aacc36bddc0202. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZ93L2123820.
Your Love Is My Drug 8 Bit (Piano Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69702da782b816642a0439bb41b2be59b9cd7a4101cbba512a71ed95dc23a49. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/USDA12210844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6fb58943a29bdb759cc1a0a69624bd1fa74932f5b71179eac1cb2941d1e335d. 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/QZ93L2137430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75a3728a34aa66003a1de3f08f46e69f596227ae35bc4220f8b7c50a82a8d5ec. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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/QZ93L2137426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3c71ba26a3914c2055a9d87c606b19a8ad546c162b0f14f5a9219076dd1ea68. 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/QZ93L2137268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8c908e55456ed81aca3b1ac38baa807c54a8183f647b947138bd4c762022865. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/SEYOK2207454.
the solitaire's ocarine (Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca4d57df62998aa768cdbe4565a72082501a3a021649a9adf1b2dee4a536e4c9. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/QZNWU2377355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf459ca9074c850fa7e6f1f6c44017512b5484a81d8483e0ef54e62cde7f0d723. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/QZNWW2356716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf49ddcaae9dbd9d639f57e82d4eac50c710e7e81c03add9aae4cd2f78eb02a0. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QZRP52319610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe176b685bcd71265698b0dc2800d289e2add0943585e135234c70449a9d3d759. 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/QZRP52320732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb063e6664ed8ddcc15c8e2e02829e1108c63ce16a330deeb74fbea20cf4aca4f. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZHNA2539173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f2341f3b539114586c236257bab16ac8d26bafe2213080a1717577ab026bbf. 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/QZHN92592817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc44fd6d7087efa45ee14af9b728c94983be795eb13905cc70e891c330395486. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZHN92592818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa78505c5d7075d4b45d1a7c1c69429ef4b90f7f704d6557c8e226b4b6120b1bd. 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/QZK6P2521764.