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 0x03ae0d92e30d4ad87c11f23365e442681734d7432e5fc10d5c51eba96fc29326. 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/5322d6d0-9e39-49a2-bff7-d477a938a117.json and https://artists.proofprofile.net/proofs/artist/5322d6d0-9e39-49a2-bff7-d477a938a117.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 0x25601c042198428bd0ff0b586699e4bc4ac1702be17bb02de30f72b116ff0cda. 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/3wnSVFUSGM9oqd5GUddjG4.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/3wnSVFUSGM9oqd5GUddjG4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x265e7d61537049b121179ce9299f0985fd6fd28d28f9c65ac517917e1688de40. 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/1b4RYQ6eVIlzjLCshGMgFv.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/1b4RYQ6eVIlzjLCshGMgFv.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e8f38e6b60d14eb4b30fcc7ae91a5d59b4c2fe774325c3addab9caa21beb511. 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/11U1NBGx4Ksfr2D5uO2D0q.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/11U1NBGx4Ksfr2D5uO2D0q.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x360021c42717b7817f0d6e23b63a92b7cacca4631d5a1402d2d614d3887e9b6c. 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/6mP1PHJMsntIHdzc8m0N6N.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/6mP1PHJMsntIHdzc8m0N6N.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fd671fa81539e92a580cf4671c98292ac74e7d511a7d3284f901f192474c7e9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6NtGNDBPPADHVIHKgVZVKv.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/6NtGNDBPPADHVIHKgVZVKv.
{"copyright_id":"0xbef6347a7592462d0e0cd77ef6a9df274a3dc7226f29fc4182e6036ea2e6dbcd","isrc":"US22N1901306","name":"Shell Beach","registered_at":"2026-06-18T10:08:51Z","spotify_id":"6rj2keluEZjxbNB5EzN5yo","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbef6347a7592462d0e0cd77ef6a9df274a3dc7226f29fc4182e6036ea2e6dbcd. 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/6rj2keluEZjxbNB5EzN5yo.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/6rj2keluEZjxbNB5EzN5yo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdefe1200795cc766dc6df5683099f850379be898f5494b7ff6d78d25560d413. 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/0tzVn5cueXUCiOnHUccZso.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/0tzVn5cueXUCiOnHUccZso.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ecc59a09d54c83b8526c425ce30e18e8eec67c675209ae7c4ce2a82aef72a99. 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/7kidfVz0TKyEasZy8P8Sxr.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/7kidfVz0TKyEasZy8P8Sxr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefff4870cffd3dfeba8f9f1c2588a8386c6706b76b23183f9c6ffb9671b99225. 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/0elWRE1OqHeMEfXmdivYuU.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/0elWRE1OqHeMEfXmdivYuU.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4381356ac4ce44abb849e7e8714d53ec8a72b2523904e6e2724393915772164b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0L6iBSEEghSlp11bWaY6i7.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/0L6iBSEEghSlp11bWaY6i7.
{"copyright_id":"0xb8854827d2a6fa444a732ebdcf94fa7a016ad1a07be9ff130aeddd323b93088d","isrc":"US22N1730706","name":"Disco Kid","registered_at":"2026-06-25T03:46:45Z","spotify_id":"3UiAsIr3nC3fAKwpi8UDJa","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8854827d2a6fa444a732ebdcf94fa7a016ad1a07be9ff130aeddd323b93088d. 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/3UiAsIr3nC3fAKwpi8UDJa.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/3UiAsIr3nC3fAKwpi8UDJa.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x395583cb50b328bd7919af2396e074e2a582866393ca11adb7b109e413008ce2. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0YltsFLyN9ZNEGQiuSzppo.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/0YltsFLyN9ZNEGQiuSzppo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac32cd6595c7f7ff45cd77275e93d6ec3e1f82a2ea2979bf55045351304f17a0. 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/1ALB4l1tKyG9F6y2IFIKjV.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/1ALB4l1tKyG9F6y2IFIKjV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19ed2985c282b20f6165955e55a205ca6d49b4714548e0229c579480ae55bb10. 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/1hD20SbEpmAXRbO5zCFuc4.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/1hD20SbEpmAXRbO5zCFuc4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0270695d0d9d373107098bce29a5a8c9498c205c6ab9898c840b70387f119395. 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/7aI754GSyRC9UOvy1Cw5St.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/7aI754GSyRC9UOvy1Cw5St.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c1322dfbc2773ae1d33de9bffc8722c2f1e69e49f4ed2a4e4fcae072826c147. 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/19307pAghJFbgJc4st9N3k.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/19307pAghJFbgJc4st9N3k.
{"copyright_id":"0x4edea6eb8c9b44e6589da38577c66f3f655091b28eb8631b9bc2c98ee601ae7d","isrc":"USACF1011005","name":"Spaceman 2","registered_at":"2026-06-26T09:33:02Z","spotify_id":"7uYCKuhpUVpYpQf8QUtqQz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4edea6eb8c9b44e6589da38577c66f3f655091b28eb8631b9bc2c98ee601ae7d. 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/7uYCKuhpUVpYpQf8QUtqQz.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/7uYCKuhpUVpYpQf8QUtqQz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x333987e6f7700a34c3ec3d8314b814848fb7cae7ef54641cbf2231fc86a0b8d4. 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/5lHeaHCZ8e39sSeK052KSc.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/5lHeaHCZ8e39sSeK052KSc.
{"copyright_id":"0xcf7fd113373ad71d1ec34c518d0ad7876497caba060c4537ee61298c8ffba904","isrc":"USACF1011007","name":"Chi Nine (feat. Ray Barbee)","registered_at":"2026-06-11T00:32:20Z","spotify_id":"1xgVt4HhWOLW90taobNw4a","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf7fd113373ad71d1ec34c518d0ad7876497caba060c4537ee61298c8ffba904. 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/1xgVt4HhWOLW90taobNw4a.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/1xgVt4HhWOLW90taobNw4a.
{"copyright_id":"0xc7cf30cb22e38b50861d4ce0606356c6ea468705f8ef19f5458f5f87389063b0","isrc":"USACF1011008","name":"Give Inski's (feat. Tommy Guererro)","registered_at":"2026-06-25T03:18:34Z","spotify_id":"2WcfDQG6pgrR8WMFAcu3z7","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7cf30cb22e38b50861d4ce0606356c6ea468705f8ef19f5458f5f87389063b0. 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/2WcfDQG6pgrR8WMFAcu3z7.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/2WcfDQG6pgrR8WMFAcu3z7.
Jam in the Van - The Mattson 2 (Live Session, Sonoma Valley, CA, 2018)
Pursuance - Live Session, Sonoma Valley, CA, 2018
JBS - Live Session, Sonoma Valley, CA, 2018
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x266eb973c9b421c7860ebe2676c3318435f14c4cfb1b305f433ed3b05e66cdd6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6YQx2K6wOho3Lpwlf08S5H.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/6YQx2K6wOho3Lpwlf08S5H.
{"copyright_id":"0xc9e4da8f5224a755dadfcafe229963abc1a9a94cf324919729aa019e5eae7bec","isrc":"USACF0810050","name":"Longing of the Leftist","registered_at":"2026-06-26T12:31:19Z","spotify_id":"6LB4gEuxuVt8K509pEaEip","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e4da8f5224a755dadfcafe229963abc1a9a94cf324919729aa019e5eae7bec. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6LB4gEuxuVt8K509pEaEip.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/6LB4gEuxuVt8K509pEaEip.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce7c308d344a8d321b81672815dd99868d92471831bf47168eb5b2fb15634401. 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/46jlUeAww1iwAFUDtzQ0zP.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/46jlUeAww1iwAFUDtzQ0zP.