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 0x39f9ddb75ddeb405efc52935e1c24ef3b36aac1d17e9cb2cfdd74cdc68877e65. 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/61c1ba27-1a98-4c1e-bb49-c1134d7c1500.json and https://artists.proofprofile.net/proofs/artist/61c1ba27-1a98-4c1e-bb49-c1134d7c1500.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xb32bbe2a08bf9bfa5d80e3057fcceb5e1ef7a75ad450490d6cda8efa5a4ce83e","isrc":"USUG12100271","name":"Help Is On The Way (Maybe Midnight)","registered_at":"2026-06-01T23:44:22Z","spotify_id":"1HoEbniMQIfe79naXNRycP","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 0xb32bbe2a08bf9bfa5d80e3057fcceb5e1ef7a75ad450490d6cda8efa5a4ce83e. 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/1HoEbniMQIfe79naXNRycP.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/1HoEbniMQIfe79naXNRycP.
{"copyright_id":"0xd53ba74c0759cfe956d30b100ccc6d8dd01daa5d23ec65dfee46884b82e7ddc6","isrc":"USUG12203324","name":"The Goodness (feat. Blessing Offor)","registered_at":"2026-06-01T20:42:57Z","spotify_id":"5OqnfFu7rdE3DEe0GoWkd7","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd53ba74c0759cfe956d30b100ccc6d8dd01daa5d23ec65dfee46884b82e7ddc6. 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/5OqnfFu7rdE3DEe0GoWkd7.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/5OqnfFu7rdE3DEe0GoWkd7.
{"copyright_id":"0xf5c9baf82b002bd947b279287aa8ff283e1c734dc8f5b8a598f8664bcb07818e","isrc":"USUG12203980","name":"Deeper (feat. Tauren Wells)","registered_at":"2026-06-04T14:21:13Z","spotify_id":"69Cqsk5PSehAQOoCix0mec","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5c9baf82b002bd947b279287aa8ff283e1c734dc8f5b8a598f8664bcb07818e. 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/69Cqsk5PSehAQOoCix0mec.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/69Cqsk5PSehAQOoCix0mec.
{"copyright_id":"0x1d77b03e7fdb4c8f980de885ddcb7fe316ee90ecf631f193e5f128fd29e08e6b","isrc":"USUG12208550","name":"Show Up Choose Love (feat. Jon Reddick)","registered_at":"2026-06-05T16:11:28Z","spotify_id":"2FNJqQUeQDQRxBN9MJouIt","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d77b03e7fdb4c8f980de885ddcb7fe316ee90ecf631f193e5f128fd29e08e6b. 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/2FNJqQUeQDQRxBN9MJouIt.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/2FNJqQUeQDQRxBN9MJouIt.
Promised Land (Collab OG) (feat. Sheryl Crow)
{"copyright_id":"0xc8bd48648e07182706c0cdc47776babf243e6d5e0e044c3a643cbe3be8d74b9e","isrc":"USUG12106409","name":"Promised Land (Collab OG) (feat. Sheryl Crow)","registered_at":"2026-06-04T16:33:29Z","spotify_id":"5OGnvOXpZk65xdmmt1AddZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8bd48648e07182706c0cdc47776babf243e6d5e0e044c3a643cbe3be8d74b9e. 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/5OGnvOXpZk65xdmmt1AddZ.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/5OGnvOXpZk65xdmmt1AddZ.
{"copyright_id":"0x61beddaa476f3278712baf69f8b80a25f887ec6b8c69f6e6b0ef80cf0dfdf2f4","isrc":"USUG12203869","name":"Everything About You (feat. Marlee)","registered_at":"2026-06-06T02:38:37Z","spotify_id":"2Tz0uHpTpAkbLkBlpIiB1E","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61beddaa476f3278712baf69f8b80a25f887ec6b8c69f6e6b0ef80cf0dfdf2f4. 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/2Tz0uHpTpAkbLkBlpIiB1E.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/2Tz0uHpTpAkbLkBlpIiB1E.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d79e67d82776906f0bbdb49acd8ed97c6991f8d46820c00ac430557e064539a. 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/3QvC1EXV0TE2wUuC9zg3S4.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/3QvC1EXV0TE2wUuC9zg3S4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0668aeee930c312c2a1e3e159c122c06e21e00e8a313d505110dcb1ee980c45. 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/1BllALFzMck8VAezqbpoKV.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/1BllALFzMck8VAezqbpoKV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a4f9c6e5720b482198f1f760c171339a956c9e9cc8388d4cca8f6e2c66204b8. 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/56GZHQ4E3i9w9xgRkzitd4.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/56GZHQ4E3i9w9xgRkzitd4.
{"copyright_id":"0x62fa3874323cec6a5d6e2115f853a8ec3db9bcd8ee536513bd2b510e2f61f4ea","isrc":"USUG12203984","name":"Found (feat. Terrian, Wande)","registered_at":"2026-06-04T15:23:14Z","spotify_id":"65PMu0hi6hUaFLgI2BFuie","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62fa3874323cec6a5d6e2115f853a8ec3db9bcd8ee536513bd2b510e2f61f4ea. 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/65PMu0hi6hUaFLgI2BFuie.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/65PMu0hi6hUaFLgI2BFuie.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x673f91647b69e5910fb4685d554f717823471fffb385bc75be5d2be4a3c321c7. 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/5h0jH0Fn39s2EpfM3VlIHG.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/5h0jH0Fn39s2EpfM3VlIHG.
Space (feat. Kevin Max & Michael Tait of dc Talk)
{"copyright_id":"0x728c4bd24663b4a63c90f01b3e7c0a9adc7209ce1b06d56c5d7dad2a74bf6787","isrc":"USUG12203986","name":"Space (feat. Kevin Max & Michael Tait of dc Talk)","registered_at":"2026-06-05T11:53:11Z","spotify_id":"0UkA04FhsS47u51po4z7S7","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x728c4bd24663b4a63c90f01b3e7c0a9adc7209ce1b06d56c5d7dad2a74bf6787. 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/0UkA04FhsS47u51po4z7S7.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/0UkA04FhsS47u51po4z7S7.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d92ef55987c8ae4f6b247c20ba0bc26fa9275b08230e4e225cd1faf3aaea536. 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/2YS7dyxfOw4ir5TX9USD7U.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/2YS7dyxfOw4ir5TX9USD7U.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe42694e83b6b1e019c9950921e581360a684fd2b8bd6175e3525ad7a038737d9. 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/1XHw4DDVHozKi74RDdmOXB.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/1XHw4DDVHozKi74RDdmOXB.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60539e8f35601419e9192481cf0b604ffa09819b76e8d2cd26a2a52086758bc0. 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/5con8nNejO7DqvtxajBisq.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/5con8nNejO7DqvtxajBisq.
Jesus Love (feat. TobyMac) (feat. tobymac)
{"copyright_id":"0xb78fc67ce4dc5b14b48d94c7d7d56dec7db8e801a8a668eed5cdac94908cf3e3","isrc":"USA5W1300166","name":"Jesus Love (feat. TobyMac) (feat. tobymac)","registered_at":"2026-06-07T12:34:05Z","spotify_id":"7kM1vq3YpwJA4nDhGgHzf3","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb78fc67ce4dc5b14b48d94c7d7d56dec7db8e801a8a668eed5cdac94908cf3e3. 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/7kM1vq3YpwJA4nDhGgHzf3.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/7kM1vq3YpwJA4nDhGgHzf3.
{"copyright_id":"0xd53ba74c0759cfe956d30b100ccc6d8dd01daa5d23ec65dfee46884b82e7ddc6","isrc":"USUG12203324","name":"The Goodness","registered_at":"2026-06-01T20:42:57Z","spotify_id":"5GBX615B3kpFSUfvhz09wr","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd53ba74c0759cfe956d30b100ccc6d8dd01daa5d23ec65dfee46884b82e7ddc6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5GBX615B3kpFSUfvhz09wr.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/5GBX615B3kpFSUfvhz09wr.
Promised Land (Collab New) (feat. Sheryl Crow)
{"copyright_id":"0x87bd48801a292a6dafd9d7918af2f655152bc2fce1c151b9f85e6fbc83f09139","isrc":"USUG12106408","name":"Promised Land (Collab New) (feat. Sheryl Crow)","registered_at":"2026-06-06T02:41:57Z","spotify_id":"5eQCKQKBFcyMQAAsVk3clf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87bd48801a292a6dafd9d7918af2f655152bc2fce1c151b9f85e6fbc83f09139. 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/5eQCKQKBFcyMQAAsVk3clf.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/5eQCKQKBFcyMQAAsVk3clf.
{"copyright_id":"0xc8bd48648e07182706c0cdc47776babf243e6d5e0e044c3a643cbe3be8d74b9e","isrc":"USUG12106409","name":"Promised Land (Collab OG) (feat. Sheryl Crow)","registered_at":"2026-06-04T16:33:29Z","spotify_id":"3ti3nM49iwPBgc685xdxwV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8bd48648e07182706c0cdc47776babf243e6d5e0e044c3a643cbe3be8d74b9e. 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/3ti3nM49iwPBgc685xdxwV.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/3ti3nM49iwPBgc685xdxwV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a9022a5d182861a597b87d9a7730d455f0141fb82bf3f83f676ba981bdd47e. 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/4TO9f63qeYpnfcoezOtEL6.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/4TO9f63qeYpnfcoezOtEL6.
{"copyright_id":"0x520ad6765be479ee4a9bd605191fbee1a600f1935f689ca826cf13e206571b1d","isrc":"USGOT1558105","name":"Not Forgotten (feat. Tobymac)","registered_at":"2026-06-08T10:54:37Z","spotify_id":"6v5g72LSjLtdFtUbx3uo9J","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x520ad6765be479ee4a9bd605191fbee1a600f1935f689ca826cf13e206571b1d. 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/6v5g72LSjLtdFtUbx3uo9J.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/6v5g72LSjLtdFtUbx3uo9J.
{"copyright_id":"0x43a75f2c0c1c8df13bda1d7e220906c20be2ec8d206b0c35b7c38002ef24172b","isrc":"QZE5P2162102","name":"LIKE YOU (feat. Tauren Wells & TobyMac)","registered_at":"2026-06-04T11:31:15Z","spotify_id":"64uVu1npX20YZe6XgrmrRL","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a75f2c0c1c8df13bda1d7e220906c20be2ec8d206b0c35b7c38002ef24172b. 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/64uVu1npX20YZe6XgrmrRL.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/64uVu1npX20YZe6XgrmrRL.
{"copyright_id":"0x43a75f2c0c1c8df13bda1d7e220906c20be2ec8d206b0c35b7c38002ef24172b","isrc":"QZE5P2162102","name":"LIKE YOU (feat. Tauren Wells & TobyMac)","registered_at":"2026-06-04T11:31:15Z","spotify_id":"0EOIXfewSRoiO4lqwhAHrA","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a75f2c0c1c8df13bda1d7e220906c20be2ec8d206b0c35b7c38002ef24172b. 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/0EOIXfewSRoiO4lqwhAHrA.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/0EOIXfewSRoiO4lqwhAHrA.