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 0xe68a5ee2d94c7417d714355b13c001a101020e3e660ab173a337a2f634ceb325. 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/54dec066-cd3b-456d-9b22-188159b3d59e.json and https://artists.proofprofile.net/proofs/artist/54dec066-cd3b-456d-9b22-188159b3d59e.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 0x7e7e7e7ce7a953650293fb397e213681faa39bfb22203eb63640277b9cb54434. 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/2k3lbGv0tGXGUbeRDVKoPD.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/2k3lbGv0tGXGUbeRDVKoPD.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f343bdf3f9a63a82d1c06c1b3011ee2a5126c6c1123385ebe44282e9d7e877. 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/3ZDOrKGmyuFryMXV7Vde75.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/3ZDOrKGmyuFryMXV7Vde75.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17005b2402b5664842a235d0d196ba72c2df3f488cc85ddc60e61f2c7ba44fd7. 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/2jHJIquGMSUnGtP2KVHsBo.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/2jHJIquGMSUnGtP2KVHsBo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a8971dd8bdf887daa21fba45236b6d553cdde209eed3dafcb123c5f5aef3408. 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/0g8z5yBTnS6BB938uHMC5M.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/0g8z5yBTnS6BB938uHMC5M.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4efc3024fad73f95ae7673f0229a8983a315f0e6c75cdb2e1edc39e387796079. 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/7uTame9WvD5FVdRY3lSNyw.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/7uTame9WvD5FVdRY3lSNyw.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dbd7bb0cc8205ece06d4445c5605233386a2ec1b82221de1049498d88625869. 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/3vG14xcgOCc3voJ1p6EvtH.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/3vG14xcgOCc3voJ1p6EvtH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b72a5f0a8e43e685b66c4599189ef35c173d90f9ade23e4129eb3f05ea0759. 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/0vc7Pcvi3m1jBPCJIGLTwV.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/0vc7Pcvi3m1jBPCJIGLTwV.
{"copyright_id":"0xd3d75895690e4a5c622b0e018fabf1c8e2bf69dca364274431b98f6cd3a5b731","isrc":"GBK6Y2422701","name":"Origins - 3AM Tusi Mix","registered_at":"2026-06-06T06:11:31Z","spotify_id":"6OCycJBRIG7ItttiTWlWQr","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d75895690e4a5c622b0e018fabf1c8e2bf69dca364274431b98f6cd3a5b731. 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/6OCycJBRIG7ItttiTWlWQr.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/6OCycJBRIG7ItttiTWlWQr.
{"copyright_id":"0x8aa852fb197bbab8f6240454f77599cf20b2e55c6dd02faa86c894f3e2cf5949","isrc":"GBK6Y2422702","name":"Origins - 3AM Tusi Extended Mix","registered_at":"2026-06-08T05:42:43Z","spotify_id":"0ac7VgtKqbBLVnjqAaDEea","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa852fb197bbab8f6240454f77599cf20b2e55c6dd02faa86c894f3e2cf5949. 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/0ac7VgtKqbBLVnjqAaDEea.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/0ac7VgtKqbBLVnjqAaDEea.
{"copyright_id":"0x58d3f4630fa4743e9ed488bd33cda48e7ff201824a61d4387b58342931c02dd7","isrc":"GBK6Y2422703","name":"Tira A Roupa - Putaria Mix","registered_at":"2026-06-04T07:41:47Z","spotify_id":"5Qizlw34GcAayL5dlXrCjq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d3f4630fa4743e9ed488bd33cda48e7ff201824a61d4387b58342931c02dd7. 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/5Qizlw34GcAayL5dlXrCjq.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/5Qizlw34GcAayL5dlXrCjq.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d881fc261cb68c5a738daa3d1fa2852a3e1ead9e044264cd34da9de6f486478. 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/6TXC9egDVd0T6gdwRoT41X.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/6TXC9egDVd0T6gdwRoT41X.
{"copyright_id":"0xbb11019454bfb3c7bbd06b80582dfeebb90dc9e340693720faf29870a5b9aaf1","isrc":"BXG9S2300018","name":"Roça na Ponta","registered_at":"2026-06-08T20:18:47Z","spotify_id":"2qKFIoKaamANc3cUtufM06","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb11019454bfb3c7bbd06b80582dfeebb90dc9e340693720faf29870a5b9aaf1. 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/2qKFIoKaamANc3cUtufM06.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/2qKFIoKaamANc3cUtufM06.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48d6330b29740406abebec788b23147af6f52d3f4621fee4730462e8d4abd272. 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/2WX9nZgX0f1FJi3DsklKwF.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/2WX9nZgX0f1FJi3DsklKwF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9410727ff3a2144d6d43ae6a6bdfef643731e468d26adc67e5d27db4e0fa6fc3. 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/5x1TzrldxCZhi1Ywq68ftK.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/5x1TzrldxCZhi1Ywq68ftK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfef404f18d2322093fafee043b2ae12823f6b0e2eec44a4a107ce39255ea8af6. 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/2jovJLOHfs4BsG7ZTvQzLh.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/2jovJLOHfs4BsG7ZTvQzLh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c08c757968c718ac8a2c2ada31b1a1d9fd41ab6145e41a7ccb7e38fd63fa073. 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/3TSBiXTRYfd5ZmvABxbKgR.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/3TSBiXTRYfd5ZmvABxbKgR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e175dddd3dc22e8ead7f27ae4d33f6bbbdf572cdef90231ee352febc88588ec. 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/2mFr2EoDLRtulpM1ftqI8P.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/2mFr2EoDLRtulpM1ftqI8P.
{"copyright_id":"0x1a1937a804f53b3fea423db469d8f51523d3b465b2259f869eccd05b0d8efa1a","isrc":"GBKQU2263540","name":"Moviendo el tarro","registered_at":"2026-06-10T06:55:31Z","spotify_id":"7zZVYBVKIWT3mNnYPmFeBF","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a1937a804f53b3fea423db469d8f51523d3b465b2259f869eccd05b0d8efa1a. 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/7zZVYBVKIWT3mNnYPmFeBF.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/7zZVYBVKIWT3mNnYPmFeBF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4703692ebaeeb188f766967f1870c9445f787173222448f278580eda3fe8461b. 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/248TCdaFPmPMnCeWYhaLWu.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/248TCdaFPmPMnCeWYhaLWu.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb7f0fe5475f77777ab20196fd6676f285991c80b48a8ee003eb39e318194b9e. 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/5OoMJq8JRngEcHtG8iJxjC.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/5OoMJq8JRngEcHtG8iJxjC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e471ba246d53a7060adc154b69e47ba6e2830a86ca09234c1dcb2de640a76a. 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/43AazLYe0n51rFMYW4pC1L.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/43AazLYe0n51rFMYW4pC1L.
{"copyright_id":"0xfbac0863eac9e4a31f5d6ec75026aa6088aecaee36201e1020e38acdbdf1f787","isrc":"FRX282101925","name":"To Stride - Extended Mix","registered_at":"2026-06-22T14:28:25Z","spotify_id":"3XiiSkfWJ3CVMNJlwLqAo6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbac0863eac9e4a31f5d6ec75026aa6088aecaee36201e1020e38acdbdf1f787. 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/3XiiSkfWJ3CVMNJlwLqAo6.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/3XiiSkfWJ3CVMNJlwLqAo6.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0571674dd50c609e08d74cbac5c460fa2c8844b8edf702467b74fd871b0f1622. 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/3jCmWRWZ4X7CSIioMGueXf.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/3jCmWRWZ4X7CSIioMGueXf.
{"copyright_id":"0xe896753495322aad93b6a3a8b291ef15dbc4b4d7701d70f7ec55d59909aaaae1","isrc":"CA5KR2007962","name":"Yo Tengo Un Novio","registered_at":"2026-06-22T08:21:59Z","spotify_id":"5imE8npeJsLZf4CWuR8EaR","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe896753495322aad93b6a3a8b291ef15dbc4b4d7701d70f7ec55d59909aaaae1. 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/5imE8npeJsLZf4CWuR8EaR.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/5imE8npeJsLZf4CWuR8EaR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ff1d6ead94931802d08b979f239f27ff32a5d00d557872a9e853dff773756b3. 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/63bz2MNXBfsjKDr06MZ4T5.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/63bz2MNXBfsjKDr06MZ4T5.
{"copyright_id":"0xdf155b686acb6e687fb649faf24f6680cec7face0e4718eaf2dba3e55b6bc655","isrc":"CA5KR1951534","name":"Algo Pegajoso - Original Mix","registered_at":"2026-06-22T08:19:10Z","spotify_id":"5VGP82piVjOMvFKtMR77Fg","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf155b686acb6e687fb649faf24f6680cec7face0e4718eaf2dba3e55b6bc655. 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/5VGP82piVjOMvFKtMR77Fg.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/5VGP82piVjOMvFKtMR77Fg.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9ed0049ad169f7a197ef5ed7cdc5b0347287029b3dad880709f4cf60ca638ce. 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/71j85bcJ89ARfEm1JWhmSh.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/71j85bcJ89ARfEm1JWhmSh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x024469ffe77f1f5b360b8493c32cf2c825b956194ec00d5fd25f9d024ea53b7d. 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/13FglZm7YmUPTcy3xlw5yz.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/13FglZm7YmUPTcy3xlw5yz.
{"copyright_id":"0x89d7e6cb22437c0851acd0d36e4638e4d1d07adff17e2a3146b7558dd489c43a","isrc":"CA5KR1913110","name":"Owlish - Harvy Valencia Remix","registered_at":"2026-06-09T19:40:36Z","spotify_id":"23cRZGNVW8f0WSVxcQB8TX","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d7e6cb22437c0851acd0d36e4638e4d1d07adff17e2a3146b7558dd489c43a. 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/23cRZGNVW8f0WSVxcQB8TX.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/23cRZGNVW8f0WSVxcQB8TX.