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 0xe25c9a6b88be169d492bbcb4dfa81952ae0ceeb04d01fc709cc5e0464ef4a706. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dd6c7d05-0aab-4cc5-943b-aa28495174d2.json and https://artists.proofprofile.net/proofs/artist/dd6c7d05-0aab-4cc5-943b-aa28495174d2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x2d7f39103f4ecda3a0f6edd685e36395afae96bd91800fa0df224537135ddacd. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0kJEzpAuhmCABCIxOTTugd.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/0kJEzpAuhmCABCIxOTTugd.
Blue Is My Favourite Colour - Gold Lounge Colorful Remix
Run River - Ray Mang's Extended Vocal Version
Run River - Ray Mang's Instrumental Version
Beautiful Life - Gelka Instrumental Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa692c79b7095c85877215098a5ddcad8ccfb899d98ea22e95b04214525e9c1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4U21UYPMgHtVkXJ8SlUpG2.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/4U21UYPMgHtVkXJ8SlUpG2.
Fuzz (Jon Kennedy Version, Tom Quick Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6110537f1d7423a6f5f7b3c72df29782a53620b468b4ef03d283e3bc09ed0078. 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/2FctJa4KMa2T3HRGVFIMqi.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/2FctJa4KMa2T3HRGVFIMqi.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34e34b12b4f421c1e742dd43ce459961117dab59825c88bb59a4996124cafc84. 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/2Pt7s3HaTu1AXMSiNFmXQm.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/2Pt7s3HaTu1AXMSiNFmXQm.
{"copyright_id":"0x88c35301f28ad896fe82ccd2debbe8127d644d483f7cded393393e5486424e1b","isrc":"GBBPW1700199","name":"Citizen Kane","registered_at":"2026-06-10T20:21:23Z","spotify_id":"3lPK7CnUgWwKuvrfMVZW20","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c35301f28ad896fe82ccd2debbe8127d644d483f7cded393393e5486424e1b. 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/3lPK7CnUgWwKuvrfMVZW20.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/3lPK7CnUgWwKuvrfMVZW20.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6110537f1d7423a6f5f7b3c72df29782a53620b468b4ef03d283e3bc09ed0078. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4vnQ174NcwmopYn7MYt189.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/4vnQ174NcwmopYn7MYt189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa36821767758104b002ff8e6275a42f40a3b40ba22b8c869f113893f0f271a. 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/6jEHabjVvOhQcNpELygFsq.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/6jEHabjVvOhQcNpELygFsq.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x450859546a5b58c703e7405cbcc437c2d01c725d155967e8c7a064e5d00d78bb. 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/7wUwSInA0RXv52o5BTY2nH.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/7wUwSInA0RXv52o5BTY2nH.
Electronic Music Anthology : The Best Of
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x450859546a5b58c703e7405cbcc437c2d01c725d155967e8c7a064e5d00d78bb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2CRgAZ4YgK5B4UdbWzj0kf.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/2CRgAZ4YgK5B4UdbWzj0kf.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f45c32361781094afb21606379f4954c7436e9bbb14fbb3234d38ba665bc60d. 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/0yQTEsHF9uQyWw1lvrPiRq.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/0yQTEsHF9uQyWw1lvrPiRq.