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 0x38a641dc10d47be8d6cf8cd554a7abc274ccc4684bb6405e43a816f2281a3564. 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/a6a15782-c177-4c90-a617-4bfaf6a7483f.json and https://artists.proofprofile.net/proofs/artist/a6a15782-c177-4c90-a617-4bfaf6a7483f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xf76ee897a04e1f39970e99f130d04b210fbba6c9eeff3fd05cceff3d0c1c49e8","isrc":"USHR22111801","name":"deathwish (feat. nothing,nowhere.)","registered_at":"2026-06-04T12:12:02Z","spotify_id":"4pi7qRGw2DDKAJMGHGcZ2O","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 0xf76ee897a04e1f39970e99f130d04b210fbba6c9eeff3fd05cceff3d0c1c49e8. 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/4pi7qRGw2DDKAJMGHGcZ2O.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/4pi7qRGw2DDKAJMGHGcZ2O.
i wonder what kind of garlic bread they eat at MENSA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7219cc6ea2ec78c93ae2432902d44f8486f2696aacb5fd79c881f662c76ab7. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3zF3xG2tGFt5BDa8pWTXU2.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/3zF3xG2tGFt5BDa8pWTXU2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaaa22063b80249e614062b9e7880c5dc8deecfc7c8a655e2d3eaf8e48e8accc. 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/5FMlh7KNxYMeXqzdeGRL53.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/5FMlh7KNxYMeXqzdeGRL53.
{"copyright_id":"0x4a7219cc6ea2ec78c93ae2432902d44f8486f2696aacb5fd79c881f662c76ab7","isrc":"USHR22311802","name":"SEX ON THE BEACH","registered_at":"2026-06-06T06:27:16Z","spotify_id":"44XIhdASbDkQyPwliYo4IE","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7219cc6ea2ec78c93ae2432902d44f8486f2696aacb5fd79c881f662c76ab7. 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/44XIhdASbDkQyPwliYo4IE.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/44XIhdASbDkQyPwliYo4IE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16c190666b4802ae2ac6e9041c4cf312db49712033467ba9207e5d2a158e691e. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0uAzaqbvft0ldLV2xuWBLp.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/0uAzaqbvft0ldLV2xuWBLp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60b1c4663aaf3514a80fa859714f3df519b585e748f0c454cc7d5288c6bccce2. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7rRjau1ZfBGeoRW2LAVDvz.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/7rRjau1ZfBGeoRW2LAVDvz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eee92b75fd0cb121f1eef5e2b51ad5a7e9d7c127611b3560a1aaa2c93090fda. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4nLo9DPpaIz874bTBLWVDX.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/4nLo9DPpaIz874bTBLWVDX.
{"copyright_id":"0x4a7219cc6ea2ec78c93ae2432902d44f8486f2696aacb5fd79c881f662c76ab7","isrc":"USHR22311802","name":"SEX ON THE BEACH","registered_at":"2026-06-06T06:27:16Z","spotify_id":"3ql8dwcE7qxkIqhFhY7zSI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7219cc6ea2ec78c93ae2432902d44f8486f2696aacb5fd79c881f662c76ab7. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3ql8dwcE7qxkIqhFhY7zSI.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/3ql8dwcE7qxkIqhFhY7zSI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaaa22063b80249e614062b9e7880c5dc8deecfc7c8a655e2d3eaf8e48e8accc. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0nG7BpwMYdTjIVnAq3V5UG.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/0nG7BpwMYdTjIVnAq3V5UG.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5614f2473a3ee9d0c91c97741492f13c06faef4b9fa47e667d251f87bc9ff3bd. 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/2hXcTd2JwqQcB2BeP4pCmv.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/2hXcTd2JwqQcB2BeP4pCmv.
{"copyright_id":"0x2dd88efaeb3379f889bf977800d06e135360b7be449c4cfe099e84d2b27e6c1a","isrc":"USHR22411803","name":"WAKE UP-SIT DOWN-SHUT UP","registered_at":"2026-06-05T23:32:32Z","spotify_id":"04nm3Xszbbp2jkHhNuxfcy","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd88efaeb3379f889bf977800d06e135360b7be449c4cfe099e84d2b27e6c1a. 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/04nm3Xszbbp2jkHhNuxfcy.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/04nm3Xszbbp2jkHhNuxfcy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe13ac3de1e5f02f7bf9e0345404416ea829eed12327771232503f2abef742760. 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/11kDZGH29PtDY4oBPphAdm.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/11kDZGH29PtDY4oBPphAdm.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60b1c4663aaf3514a80fa859714f3df519b585e748f0c454cc7d5288c6bccce2. 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/2M0ryHpvIcoMUNd5wm0eTB.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/2M0ryHpvIcoMUNd5wm0eTB.
{"copyright_id":"0xc8f8a94b2078c1bc3d173a4dc3c9efab1b81e0d5629c9661fce5f00aed7a0d8a","isrc":"USHR22411805","name":"FREAKIN' OUT","registered_at":"2026-06-06T13:12:02Z","spotify_id":"1xxHgzhJu0kp794zCcGHHj","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8f8a94b2078c1bc3d173a4dc3c9efab1b81e0d5629c9661fce5f00aed7a0d8a. 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/1xxHgzhJu0kp794zCcGHHj.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/1xxHgzhJu0kp794zCcGHHj.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5614f2473a3ee9d0c91c97741492f13c06faef4b9fa47e667d251f87bc9ff3bd. 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/5G46r5BatD8I1MRqeSPD8W.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/5G46r5BatD8I1MRqeSPD8W.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16c190666b4802ae2ac6e9041c4cf312db49712033467ba9207e5d2a158e691e. 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/2cb10pqT6p291kduzk3jvO.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/2cb10pqT6p291kduzk3jvO.
{"copyright_id":"0x2688ea827f3cf2665c3b604b5e41f61653e10f577d7ed1ee879d80ee8f2a2599","isrc":"USHR22411808","name":"KISSIN' KILLER COBRAS","registered_at":"2026-06-05T13:52:32Z","spotify_id":"1uLc8tKdw9DnBVFRyAxNRT","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2688ea827f3cf2665c3b604b5e41f61653e10f577d7ed1ee879d80ee8f2a2599. 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/1uLc8tKdw9DnBVFRyAxNRT.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/1uLc8tKdw9DnBVFRyAxNRT.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaaa22063b80249e614062b9e7880c5dc8deecfc7c8a655e2d3eaf8e48e8accc. 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/3fKyI1n267tQU4Moq6SlLu.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/3fKyI1n267tQU4Moq6SlLu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa903271d8401a8dafc384873c4f6e42e6a116fba22ae4644d99015c72d72e8e1. 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/2guwDzLyOQypsRi5yZme1J.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/2guwDzLyOQypsRi5yZme1J.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d43096a4af9b43c0967d04efd2d0dccfa450dbbbaea89172d813fcf3d71f228. 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/4FAeQFCAegKI3zbGsRtcV1.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/4FAeQFCAegKI3zbGsRtcV1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde8bf228d759973e1349b78d3884433a49a9e14aa1a6a38829d1d2232cd8ea96. 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/3w68PQt58fGpvFpN31EgUi.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/3w68PQt58fGpvFpN31EgUi.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9778e16d3c11d0bfb589f8b2931b8af744107d2a45a12626e62c6cc55d3b8a39. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1E0n4tId8AGE5WWGbi7QAB.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/1E0n4tId8AGE5WWGbi7QAB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd63f5257f2373aeecebef0751a99cbca8add572efa50e7a7a69cc20f4d7d996b. 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/5R3nw75jO7XaKZqMRbKWq8.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/5R3nw75jO7XaKZqMRbKWq8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7219cc6ea2ec78c93ae2432902d44f8486f2696aacb5fd79c881f662c76ab7. 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/2tFXB6Si1TIE3xG26pONI4.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/2tFXB6Si1TIE3xG26pONI4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eee92b75fd0cb121f1eef5e2b51ad5a7e9d7c127611b3560a1aaa2c93090fda. 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/15Vzew24KEQEKYixVNg6TK.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/15Vzew24KEQEKYixVNg6TK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84d657e90b9926396484ff7f0636b6a6a521cdb1ac1095b01f79f079b9fc1fe2. 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/20K2hZ4xjfoSKoQ8adBkk8.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/20K2hZ4xjfoSKoQ8adBkk8.