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 0x0474dcabb4b5e66fae547b98c61a05f4dbfbca2c216db835cf7a772adcac1fb9. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ac2d3fc4-63f3-4d6c-af76-445a8f5cd9d3.json and https://artists.proofprofile.net/proofs/artist/ac2d3fc4-63f3-4d6c-af76-445a8f5cd9d3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
High School Musical: The Musical: The Series (Original Soundtrack/The Final Season)
{"copyright_id":"0x32cbc7db4e5ade927fa7bdfef4780ea343604cf0bdb8fa040e46d16919d1d4b1","isrc":"USWD12327946","name":"Puppy Love (Theme Song Version)","registered_at":"2026-06-10T02:29:05Z","spotify_id":"51RbPzlSHFTgXYtsrQqhnM","type":"track"}
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 0x32cbc7db4e5ade927fa7bdfef4780ea343604cf0bdb8fa040e46d16919d1d4b1. 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/51RbPzlSHFTgXYtsrQqhnM.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/51RbPzlSHFTgXYtsrQqhnM.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x088c406f69d0def173a9ff06e8b995d05ab2bc7bc0390bfeb508a9fc15628914. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1k65Ekk2CYABihscY5GSU6.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/1k65Ekk2CYABihscY5GSU6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x518d691c5e957a7dc7d06a89aa51239ecd5963a7dd75d957f04aa43631db29d0. 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/66WHHa2c6evCPVBvlblI2D.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/66WHHa2c6evCPVBvlblI2D.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x518d691c5e957a7dc7d06a89aa51239ecd5963a7dd75d957f04aa43631db29d0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/73GYQH00u96CdF9HVUPDnm.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/73GYQH00u96CdF9HVUPDnm.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b0abe296988259b25d6e4e3433d0610d10a214bfd2ad3bec9513a27cfdc2500. 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/6MDo7sy44456lULRdSDM80.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/6MDo7sy44456lULRdSDM80.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x088c406f69d0def173a9ff06e8b995d05ab2bc7bc0390bfeb508a9fc15628914. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/57CuxJCul8X4hnllB4kZJ2.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/57CuxJCul8X4hnllB4kZJ2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x340379b509aed96890df187700773fd863bb00991a7a1e2d9af6c303acb70231. 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/6dmK9z1i0BgYz79CmSTwn4.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/6dmK9z1i0BgYz79CmSTwn4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x518d691c5e957a7dc7d06a89aa51239ecd5963a7dd75d957f04aa43631db29d0. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0BqCkx44LUGhICBl8dTlXj.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/0BqCkx44LUGhICBl8dTlXj.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b0abe296988259b25d6e4e3433d0610d10a214bfd2ad3bec9513a27cfdc2500. 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/5BlsA0AwfXFbjFkNuQyccd.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/5BlsA0AwfXFbjFkNuQyccd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x340379b509aed96890df187700773fd863bb00991a7a1e2d9af6c303acb70231. 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/0R32QgS6KlQWhelk8YRZt9.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/0R32QgS6KlQWhelk8YRZt9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf73d325132862049b4229c0d850d6647e9c7701bd379ed34975730adf32b0beb. 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/45SiYfHcmXYQWIQCh7J9Vc.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/45SiYfHcmXYQWIQCh7J9Vc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b0abe296988259b25d6e4e3433d0610d10a214bfd2ad3bec9513a27cfdc2500. 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/4PSXhvKjyCfk82MuZdNYIE.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/4PSXhvKjyCfk82MuZdNYIE.
{"copyright_id":"0x588bd9acceb40a8f297a0e2751c05fdb023feb2e9801baf2c1d8db392f4490b1","isrc":"CA6D22300390","name":"Nevada - Sped Up","registered_at":"2026-06-04T09:34:40Z","spotify_id":"0tbfHEnclBgFV5O5SYgfSK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x588bd9acceb40a8f297a0e2751c05fdb023feb2e9801baf2c1d8db392f4490b1. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0tbfHEnclBgFV5O5SYgfSK.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/0tbfHEnclBgFV5O5SYgfSK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3811eb7f57f30b28033105b6e1e7adb9a9207c5192bf3140df25a78e0249029. 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/2RpQtyaROtc54gkl6HDjQp.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/2RpQtyaROtc54gkl6HDjQp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3811eb7f57f30b28033105b6e1e7adb9a9207c5192bf3140df25a78e0249029. 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/0ueILWV4Pvzx5hJCMCn975.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/0ueILWV4Pvzx5hJCMCn975.
What It's Like to Be Me - From “Freaky Friday” the Disney Channel Original Movie
Freaky Friday (Music from the Disney Channel Original Movie)
{"copyright_id":"0x48afa591460c26a98e6ac11fb679b5e394791158fe17ee80ae447225ceb47d40","isrc":"USWD11889188","name":"What It's Like to Be Me - From “Freaky Friday” the Disney Channel Original Movie","registered_at":"2026-06-18T04:06:45Z","spotify_id":"0XkFwm9Tiqs5U1TJnvCNwB","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48afa591460c26a98e6ac11fb679b5e394791158fe17ee80ae447225ceb47d40. 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/0XkFwm9Tiqs5U1TJnvCNwB.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/0XkFwm9Tiqs5U1TJnvCNwB.