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 0x1e1fc56a9a0e275f60232b7b830524c149e6ac89eeeda650975653e7fc73add1. 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/3a6f1146-5b25-4c08-920a-d787ecfc3eeb.json and https://artists.proofprofile.net/proofs/artist/3a6f1146-5b25-4c08-920a-d787ecfc3eeb.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 0x75cf42d7d6b7366991abb42c87c081985d2eb21d09a18ba332119e00b9fee0e4. 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/3ltJ6uNuEW6S20xymmvzo4.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/3ltJ6uNuEW6S20xymmvzo4.
{"copyright_id":"0x022d55790d8ce0599f52186cb594a3799cfefe28cb18a22da3fabfdb93d1c578","isrc":"QZMEP2270570","name":"Been Me","registered_at":"2026-06-26T04:21:11Z","spotify_id":"4czgFRoRVCAMd8HyDwDQbl","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x022d55790d8ce0599f52186cb594a3799cfefe28cb18a22da3fabfdb93d1c578. 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/4czgFRoRVCAMd8HyDwDQbl.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/4czgFRoRVCAMd8HyDwDQbl.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1287bac8848148d3a3fc73a5f3d6826869125a1c36c3a55bc841935fd8e25ba7. 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/7aPm0cYaFo6HZwAcfBznd7.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/7aPm0cYaFo6HZwAcfBznd7.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x587c47f8cc7f979ce0ff38e3c3a02268755ce75eb7d9f82816fb29426b6416e7. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T20:40:17Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6nLryDTMLh7CTLKWl7tY7R.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/6nLryDTMLh7CTLKWl7tY7R.
{"copyright_id":"0x5afdfb6ecc5eca7b5d834f0ce23507b65bd4955a25a384989a3f842252b2db72","isrc":"QZK6F2481785","name":"Wanted - Afro House Remix","registered_at":"2026-06-05T18:44:41Z","spotify_id":"2Mze0VB7wEhlufHrytbQzI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5afdfb6ecc5eca7b5d834f0ce23507b65bd4955a25a384989a3f842252b2db72. 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/2Mze0VB7wEhlufHrytbQzI.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/2Mze0VB7wEhlufHrytbQzI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf70a26c01a5d1b605b4e3011784eddd2841f35f55a641d118ecfc877c258cc46. 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/1LR4qwNyfe3ruSM9CbNiIt.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/1LR4qwNyfe3ruSM9CbNiIt.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf70a26c01a5d1b605b4e3011784eddd2841f35f55a641d118ecfc877c258cc46. 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/2pN9qsuPZ9Itmn89T5GjGx.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/2pN9qsuPZ9Itmn89T5GjGx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa045fb907165e6302918e48dce33a5aa123253e26655e07cae7da626b2a02fa1. 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/6dH0Sp1HkGPdvUgOkyfkPT.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/6dH0Sp1HkGPdvUgOkyfkPT.
{"copyright_id":"0xb7c80318e008cce76dcbde93f708f155d1961417247cf7d02f97c928aa779e77","isrc":"QZNWU2383086","name":"City Lights","registered_at":"2026-06-06T06:56:37Z","spotify_id":"7kBSKOUKTloZxDPvsYIXYk","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7c80318e008cce76dcbde93f708f155d1961417247cf7d02f97c928aa779e77. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7kBSKOUKTloZxDPvsYIXYk.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/7kBSKOUKTloZxDPvsYIXYk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3781877916ae2977a3d6fbe262045768ffce9cda875506ef38dd68b816b1fea6. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2ibl2wddIIlOQ5MJ07GAxy.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/2ibl2wddIIlOQ5MJ07GAxy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7c80318e008cce76dcbde93f708f155d1961417247cf7d02f97c928aa779e77. 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/5P0AxbXLBVWoVjKOCfkwx5.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/5P0AxbXLBVWoVjKOCfkwx5.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3781877916ae2977a3d6fbe262045768ffce9cda875506ef38dd68b816b1fea6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6ah6XmN42F1GqhVdbOUZq4.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/6ah6XmN42F1GqhVdbOUZq4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3781877916ae2977a3d6fbe262045768ffce9cda875506ef38dd68b816b1fea6. 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/4GoCuc1cBGnI4tj0WzTOv9.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/4GoCuc1cBGnI4tj0WzTOv9.
Gravity - Elektrotechnika Sped Up Remix Instrumental
{"copyright_id":"0x022d55790d8ce0599f52186cb594a3799cfefe28cb18a22da3fabfdb93d1c578","isrc":"QZMEP2270570","name":"Been Me","registered_at":"2026-06-26T04:21:11Z","spotify_id":"6JVJcoLV4gCKlUTrbPjTfH","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x022d55790d8ce0599f52186cb594a3799cfefe28cb18a22da3fabfdb93d1c578. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6JVJcoLV4gCKlUTrbPjTfH.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/6JVJcoLV4gCKlUTrbPjTfH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75cf42d7d6b7366991abb42c87c081985d2eb21d09a18ba332119e00b9fee0e4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/46HBFL4JWPfO5REugfZBQs.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/46HBFL4JWPfO5REugfZBQs.
{"copyright_id":"0x6cc9e0f464287ff6ffafbe3d31b05843fe8f832343d8778f56bcc59b6dbc9d5d","isrc":"QZNJV2127265","name":"Without You","registered_at":"2026-06-10T09:07:12Z","spotify_id":"6SN132kGidLytxzYTxLlzj","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc9e0f464287ff6ffafbe3d31b05843fe8f832343d8778f56bcc59b6dbc9d5d. 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/6SN132kGidLytxzYTxLlzj.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/6SN132kGidLytxzYTxLlzj.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0a76d6982a5b6ac506a18160f0355b705c13440c1768f0e589bc81cf1428661. 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/5vvoMjCeRRYj295YFyK3uS.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/5vvoMjCeRRYj295YFyK3uS.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1287bac8848148d3a3fc73a5f3d6826869125a1c36c3a55bc841935fd8e25ba7. 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/2aaLtIQzyGR0lphQAnHGYz.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/2aaLtIQzyGR0lphQAnHGYz.