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 0x3fa7378fd3805afbd5a87e265e98feeac1e51fae9bb86c3d7e201f4ff2ce66c5. 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/87806f99-2468-4dc9-8332-aec0db854ea4.json and https://artists.proofprofile.net/proofs/artist/87806f99-2468-4dc9-8332-aec0db854ea4.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 0xf6eecf30c5f02aede3bbf65616731bbc5e20001e0d138a937060b27275d8e47d. 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/5vSyT1mOuF3zZ1oGLYlaUE.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/5vSyT1mOuF3zZ1oGLYlaUE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8861cc7ee49913ea33c4c16223e70e50e9710782a26800ba9a1379923875fc7d. 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/2X2ZsXQyQyykl8pddOpQdH.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/2X2ZsXQyQyykl8pddOpQdH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f3a4193f22e34072583be0da017f028b2e8f35a4aa937228837253b9d0db7f5. 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/34Nrv2yPj376XLMLZ3Qiai.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/34Nrv2yPj376XLMLZ3Qiai.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb70e0d361742f27ef687e42c58c1dd20ebca5be63f8fb47c0c284fc612775b. 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/6MfFPb6Ubqii4it2b1KX29.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/6MfFPb6Ubqii4it2b1KX29.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc99dd445e7b495f7cdba1e3b6a10b146a964845e6cf0ecbe3749a86e37c08d9. 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/3DV6B2outc991QXyepCT2S.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/3DV6B2outc991QXyepCT2S.
{"copyright_id":"0x5abdca61cfea1f3906320fe7e5bd9886769aec68be421b740051b10b738ea0d4","isrc":"IL1001086435","name":"אדם בתוך עצמו","registered_at":"2026-06-24T21:50:24Z","spotify_id":"3B8nnyKQrdfkkxXB5VhPah","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5abdca61cfea1f3906320fe7e5bd9886769aec68be421b740051b10b738ea0d4. 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/3B8nnyKQrdfkkxXB5VhPah.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/3B8nnyKQrdfkkxXB5VhPah.
{"copyright_id":"0x4ab3d17da02c11ab11fbf36f2a6d7b57561b53789f6dca6b48194e00aaad5f6d","isrc":"IL1000001559","name":"זה מה שנשאר","registered_at":"2026-06-24T07:10:06Z","spotify_id":"4TtHdggsoQ0cGafF9i7aZr","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab3d17da02c11ab11fbf36f2a6d7b57561b53789f6dca6b48194e00aaad5f6d. 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/4TtHdggsoQ0cGafF9i7aZr.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/4TtHdggsoQ0cGafF9i7aZr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc17990e310d38c46b44801044bfa93ab6fd3fa03c0c7c26fe868a1b7fb2dddb7. 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/487FtYcdRWt7ou2Z9UxIe3.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/487FtYcdRWt7ou2Z9UxIe3.
{"copyright_id":"0xde5c7e3611c456ea4e1b87d7c22843b80e2a82addd7addec1a9ba1a00e1f8cee","isrc":"IL1000001563","name":"אגדת דשא","registered_at":"2026-06-21T10:25:50Z","spotify_id":"3trT79NKlUFYbim12f3seR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde5c7e3611c456ea4e1b87d7c22843b80e2a82addd7addec1a9ba1a00e1f8cee. 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/3trT79NKlUFYbim12f3seR.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/3trT79NKlUFYbim12f3seR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe973c0140f36056bc0abc64c2b77f0b88e9601ff88dc78ee29e7f6b06af6e067. 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/4wOQTuziprrq2wBreu1B9H.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/4wOQTuziprrq2wBreu1B9H.
{"copyright_id":"0x1d1bbb31535f5d597d2654c695e1ccf9c3dcb74b669314befbd2ceda0855c741","isrc":"IL1000001555","name":"היא לא יודעת מה עובר עליי","registered_at":"2026-06-25T14:01:47Z","spotify_id":"4hTUqYFwoEvcwVbq1lLsdR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d1bbb31535f5d597d2654c695e1ccf9c3dcb74b669314befbd2ceda0855c741. 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/4hTUqYFwoEvcwVbq1lLsdR.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/4hTUqYFwoEvcwVbq1lLsdR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00cd07f1626f236e430ed4150425d50034d38fe364d45312fe05588c76eec61b. 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/2xGSl8aNfWdump1GROZLUV.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/2xGSl8aNfWdump1GROZLUV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5d10649972ab0f3c037bb6ca0fed436b07c7769f127988a21557d5d06b42213. 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/1FaPOdcYyZd4p5ccGjRhL9.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/1FaPOdcYyZd4p5ccGjRhL9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69695cfa7bdca0197ffce103747f76ec541ee8424275404fe2f1ae8ba48c6552. 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/0rqOa1FhJ0VVbPy87DibCC.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/0rqOa1FhJ0VVbPy87DibCC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfac1789885ef51aab0ecfbc6eea7b4d1a89edcfb60bca53731e2ee84bfab7675. 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/4cvryYzhLQbx1CBV9YyhDT.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/4cvryYzhLQbx1CBV9YyhDT.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32925035404fe0b08614069b05e0ca4724f177c9f59e8412f179cd71913d9fed. 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/2bTxroth1QlEZYmoLJWMLG.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/2bTxroth1QlEZYmoLJWMLG.
{"copyright_id":"0xa74d846dbd9d960e24d8cf86d245da2fec16693daf5efa7c0c9dc35f79dc7134","isrc":"IL1000001548","name":"למה לי לקחת ללב","registered_at":"2026-06-27T16:33:38Z","spotify_id":"04XHNT8PGQigxhAiBy0KOB","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa74d846dbd9d960e24d8cf86d245da2fec16693daf5efa7c0c9dc35f79dc7134. 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/04XHNT8PGQigxhAiBy0KOB.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/04XHNT8PGQigxhAiBy0KOB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee7d86d2918371009193227d99927645a985e1265af812885380f50ec6f769b. 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/4308MjlzVM3pyclrn83Sbu.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/4308MjlzVM3pyclrn83Sbu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad96980a17191a2d434b7647e0e3cce9a1108bbf883d03c31bfa2b4027a516f2. 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/7xbRcabrbJhkGdE7siqzBJ.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/7xbRcabrbJhkGdE7siqzBJ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f7584c13f7af47152c7c8a2e0230e0f82c680d72ce8a9af3c3d8ba9fad4abc. 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/0kRE974Dr7oxYBjQK9O6Er.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/0kRE974Dr7oxYBjQK9O6Er.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd74a081f35bc10e127b0ad798dd7cc42397f410ae3ed050e7385efc09e901761. 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/1JgpPG2yUyFD27ROpiFzxK.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/1JgpPG2yUyFD27ROpiFzxK.
הבלדה על יואל משה סלומון (מתוך מחרוזת שבלול 2) - Live
{"copyright_id":"0x3a076b59c597bd05d7aa3ae0f1d881a7cab25fbe86d160f10e19ed74bcb1c91e","isrc":"IL1011121190","name":"הבלדה על יואל משה סלומון (מתוך מחרוזת שבלול 2) - Live","registered_at":"2026-06-17T10:00:45Z","spotify_id":"0dZe0h5o8w7GTQjkBVjqUo","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a076b59c597bd05d7aa3ae0f1d881a7cab25fbe86d160f10e19ed74bcb1c91e. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T20:47:43Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0dZe0h5o8w7GTQjkBVjqUo.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/0dZe0h5o8w7GTQjkBVjqUo.
עבודה עברית - מחווה ל-50 שנות יצירה מקורית
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e5e48476853d7eb133cef55caddadbc8ecfd59c9f63bdfc4b39c83da2acff52. 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/0WxW36IkTbluBKZlirTek9.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/0WxW36IkTbluBKZlirTek9.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e4c39fc08a911e68352cb1f890d0321a633c735d65446a818d7a0fa1388fc7d. 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/5AhVx4BOvY7bhZtZqF1fF3.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/5AhVx4BOvY7bhZtZqF1fF3.
{"copyright_id":"0xb869b2dc980d7a3fdc4cf35872fd663c5af2dc07015ef885f4777cfa5e80081c","isrc":"IL1011121191","name":"מה איתי (מתוך מחרוזת שבלול 2) - Live","registered_at":"2026-06-25T13:40:58Z","spotify_id":"1C25Wk0xh0G3xfmSyuXPbP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb869b2dc980d7a3fdc4cf35872fd663c5af2dc07015ef885f4777cfa5e80081c. 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/1C25Wk0xh0G3xfmSyuXPbP.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/1C25Wk0xh0G3xfmSyuXPbP.