1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xdf6f98778085c4fb4078e8cc9abd7bbcc6a77f156eb1cdd5f7c37dac84778dfa. 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/70fa894e-1620-448e-ade0-7027ca77f57c.json and https://artists.proofprofile.net/proofs/artist/70fa894e-1620-448e-ade0-7027ca77f57c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
My Lovely Liar, Pt. 1 (Original Television Soundtrack)
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b3af8294ad8bc0248e1136ab8f5901b50092f3e88ae45f486f27072a1cea9c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5y6jryJF3l5KqnCZMPw1qR.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5y6jryJF3l5KqnCZMPw1qR.
{"copyright_id":"0x2fe1d23c96b34f38bb0ee4443d5597b8167e6bceec6493d2cce79f46dfb12b78","isrc":"KRA492300712","name":"Spoiler - Instrumental","registered_at":"2026-06-27T05:20:06Z","spotify_id":"6D9pAeVXE85AINhqqEtOhR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe1d23c96b34f38bb0ee4443d5597b8167e6bceec6493d2cce79f46dfb12b78. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6D9pAeVXE85AINhqqEtOhR.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6D9pAeVXE85AINhqqEtOhR.
True to Love, Pt. 7 (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf3a8de063f5a91d245f72b08b2d3768f0479732c355a848e8117fd23399ffc. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3NxsNYrMHHdU93sBEFB9xo.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3NxsNYrMHHdU93sBEFB9xo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03907bc56c46e808f29ecc81c2bac33436588105abe4b62166f84fef871c482. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4Jmrkz9hytD3jaLDkZ7Qvc.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4Jmrkz9hytD3jaLDkZ7Qvc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x402294904a9e484685c1b05953220f53b117b9a74143848d511f26c11736655e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1B1Q7BVbA88hCzA4SZ2lYI.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1B1Q7BVbA88hCzA4SZ2lYI.
Come on baby tonight (Ditto X VIVIZ) (Inst.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1e75392add69adb02154de07c59ffc531224446c5ed31ae0cd6b53f330f1c3e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0orUoBenQ9Cwx26z4I4RAT.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0orUoBenQ9Cwx26z4I4RAT.
{"copyright_id":"0xae24b59db87e09be58a4e76a0f5c0271904b60e786ababa9a7e1fb89038c6bcb","isrc":"QM4TX2286202","name":"BOP BOP! (Yves V Remix)","registered_at":"2026-06-18T09:44:46Z","spotify_id":"4Gcolfcv9DwTrZMYHE96Zl","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae24b59db87e09be58a4e76a0f5c0271904b60e786ababa9a7e1fb89038c6bcb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4Gcolfcv9DwTrZMYHE96Zl.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4Gcolfcv9DwTrZMYHE96Zl.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30cc12a3182624fb239fee82547faa6d9d364ad6437208c0284bdb7e9d07fe73. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/77UhaG1vNhmflwM60U236f.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/77UhaG1vNhmflwM60U236f.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa376196db7e38e1a1fa71e0b79f041ed378176359bc840de426e0eacb47d814a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3FNuG1PjKcOu7tAqZKB4kZ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3FNuG1PjKcOu7tAqZKB4kZ.