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 0xc5a3f8872a756f5047699884188b46fd27b2fb885642304dfab09bdc267b3de8. 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/1b69347e-ee87-4424-87b7-3165ddf06e45.json and https://artists.proofprofile.net/proofs/artist/1b69347e-ee87-4424-87b7-3165ddf06e45.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 0x632a5a846c3f94c53887d17abca1c902875930de1fb91e3772ecfbb8e3dfa86d. 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/6FzVkLWa4zaxFYcpukfWZy.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/6FzVkLWa4zaxFYcpukfWZy.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ccf116d5d5e446057e572615d46f3bfcb86fab96ec89902c2bb268c818c6d3. 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/4TAGM0fxU7opCz77zDp9Sj.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/4TAGM0fxU7opCz77zDp9Sj.
{"copyright_id":"0xc3ba2809b25d198f36e2d501a1fd649cc17060eb5dee18a91c87060f22ab17a8","isrc":"USANG2181271","name":"Ayer Me Llamó Mi Ex","registered_at":"2026-06-26T17:13:50Z","spotify_id":"6a3ZXJeVRz9UOSLnrHUsxC","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ba2809b25d198f36e2d501a1fd649cc17060eb5dee18a91c87060f22ab17a8. 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/6a3ZXJeVRz9UOSLnrHUsxC.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/6a3ZXJeVRz9UOSLnrHUsxC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5faf8c436c34707335c10e4c554a176471ea13e764558c65ae2ee726d9c31b8c. 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/0vjSaXsbmod83oJYo14nm8.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/0vjSaXsbmod83oJYo14nm8.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf294f65601caf714cc762fc12266db392d3c33f316260f5805ce338879e028b4. 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/5nOvw58yGQPEIdA4QLWa7s.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/5nOvw58yGQPEIdA4QLWa7s.
{"copyright_id":"0xec72b3204d18efe6d0550fe6cd2c8e961c4c3d746b108be504f60dfe82a15df4","isrc":"USANG2265793","name":"Si Se Da","registered_at":"2026-06-10T17:32:37Z","spotify_id":"2SBhS9JTS2cqSC3BCatDho","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec72b3204d18efe6d0550fe6cd2c8e961c4c3d746b108be504f60dfe82a15df4. 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/2SBhS9JTS2cqSC3BCatDho.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/2SBhS9JTS2cqSC3BCatDho.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7a5608f8463c3e3fcdeb7c25473640908ef6a85c24b5a361f9db97bff63b1ef. 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/762iQbAWEG94V1tX9plGU7.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/762iQbAWEG94V1tX9plGU7.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd54322d60bf83dd83542d0659de78fba33937120376bd59c5711a4d76c540a. 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/4LtgkobW7PoVuwSvPjaGuq.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/4LtgkobW7PoVuwSvPjaGuq.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96194ab83240a87744eab661c09abbbc74e31601f29ee61835f497cc4454abd4. 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/5CuKTndChId0mrXILy0zcL.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/5CuKTndChId0mrXILy0zcL.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e21fa85d03990431f2ea32481508782a5f043d0e986d25109a48782bac89443. 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/2VyGEekeLHcVNLkHMXoqIY.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/2VyGEekeLHcVNLkHMXoqIY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x282a1e475a645e2d43159a09f5cda0579d4397a18527f41e535b2ff0653a3d48. 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/2II6FOZsIi7IqmGSkeVdmF.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/2II6FOZsIi7IqmGSkeVdmF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa648dcef4328fc14073c7b2dad4154c48687070734561794ecc7b9fabd62a64e. 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/1u1Jd7beBubb7JiBiSLua4.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/1u1Jd7beBubb7JiBiSLua4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16bf33462a3b724f35da56af0fd3ea53624de493d1593189f98b9dcae2959d60. 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/5yViFBPBNj0TSxz2Z2PGW1.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/5yViFBPBNj0TSxz2Z2PGW1.
{"copyright_id":"0xe4bbefc64ea9ce2dfd7d0875d367e02fa2137b6dfb2a1c8b39ce3d7fce64f7fd","isrc":"AR5UH2400006","name":"Session #10","registered_at":"2026-06-27T01:56:10Z","spotify_id":"5Bc8HIpQEBxWScdXxu0XPc","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4bbefc64ea9ce2dfd7d0875d367e02fa2137b6dfb2a1c8b39ce3d7fce64f7fd. 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/5Bc8HIpQEBxWScdXxu0XPc.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/5Bc8HIpQEBxWScdXxu0XPc.
{"copyright_id":"0x7f8dae6bc03e7831bad40eae3728ec50fa357decbc4f51037a98b8817e93ea76","isrc":"AR5UH2301888","name":"Session #9 - En Vivo","registered_at":"2026-06-24T06:15:21Z","spotify_id":"4gSWvQjQQD677L2PVyYS7c","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f8dae6bc03e7831bad40eae3728ec50fa357decbc4f51037a98b8817e93ea76. 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/4gSWvQjQQD677L2PVyYS7c.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/4gSWvQjQQD677L2PVyYS7c.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ab00f211425537d76b277e3504fe92af4b755b9410ef93881833398c031f18. 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/48X9j6fGSuRKx3IRdBP57M.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/48X9j6fGSuRKx3IRdBP57M.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0017405ec1c5291de3e53fe3375c88364044088affb0025a1c39c9d6698c62ef. 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/1fZTwOwzbpDVjMxy9NCgWp.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/1fZTwOwzbpDVjMxy9NCgWp.
{"copyright_id":"0x41c4a22cf961941d4f793b8286c08ebc7272b93111c16c994a0c25999db8ef6d","isrc":"USANG2220275","name":"Marisola / Ella Quiere / Fuamiamor","registered_at":"2026-06-20T06:15:56Z","spotify_id":"1TgKHjYQSN7wlbol5B6MIy","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c4a22cf961941d4f793b8286c08ebc7272b93111c16c994a0c25999db8ef6d. 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/1TgKHjYQSN7wlbol5B6MIy.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/1TgKHjYQSN7wlbol5B6MIy.
Fanática Sensual / Quizás / Te Vas (En Vivo)
Fanática Sensual / Quizás / Te Vas - En Vivo
{"copyright_id":"0xf678bbcb10c7b8ba8244d00ebc85fea4a348b92445c73590a28804d019f0bb40","isrc":"US3DF2239901","name":"Noche En Medellín / Jordan","registered_at":"2026-06-18T16:07:26Z","spotify_id":"0V0V4AhQJMM4I7rAsJosx4","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf678bbcb10c7b8ba8244d00ebc85fea4a348b92445c73590a28804d019f0bb40. 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/0V0V4AhQJMM4I7rAsJosx4.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/0V0V4AhQJMM4I7rAsJosx4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c345576a371f47d53966c11df4fd9128cdaa411284789bf1d2da4dbd870a0c. 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/6oVhtxMIFx3NYOrEetwLa0.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/6oVhtxMIFx3NYOrEetwLa0.
{"copyright_id":"0xb5be9621d81e58e4cc3f307fd5f9159add1d8304c0296368edcb8d27c9efeb6f","isrc":"US3DF2220678","name":"Yendo No Llegando","registered_at":"2026-06-24T13:22:17Z","spotify_id":"68kmi4mIfNJAupnuX1PCZV","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5be9621d81e58e4cc3f307fd5f9159add1d8304c0296368edcb8d27c9efeb6f. 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/68kmi4mIfNJAupnuX1PCZV.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/68kmi4mIfNJAupnuX1PCZV.
{"copyright_id":"0x8be64ebfb1f6ce45a8c142a2f68dfa74bb0fe25925ae29418a274500f479277f","isrc":"US3DF2204555","name":"Hoy Te Vi (Segunda Dosis)","registered_at":"2026-06-18T16:07:56Z","spotify_id":"41VDXnn13HTSmAkwXBqy7m","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be64ebfb1f6ce45a8c142a2f68dfa74bb0fe25925ae29418a274500f479277f. 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/41VDXnn13HTSmAkwXBqy7m.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/41VDXnn13HTSmAkwXBqy7m.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5df31fbf1d399960d5f77d17d1131ce7060048ccec27286945fc3d099206d1. 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/7ztchV2SHck2efOR4wOEYv.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/7ztchV2SHck2efOR4wOEYv.
{"copyright_id":"0x59b77e1aaf4d7e9e4ce8bdf8ddb4c37876c6c4a09e8adc595388959bf83b8e62","isrc":"ARG991034313","name":"Joda Clandestina","registered_at":"2026-06-06T17:25:30Z","spotify_id":"0GagwFgtQHNefc02XXEsMP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59b77e1aaf4d7e9e4ce8bdf8ddb4c37876c6c4a09e8adc595388959bf83b8e62. 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/0GagwFgtQHNefc02XXEsMP.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/0GagwFgtQHNefc02XXEsMP.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3431839fa9181f94b691af6b8713c5856b479c87732cc271e7558329d01e8173. 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/36vJyCuqse0zidFibh1ybx.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/36vJyCuqse0zidFibh1ybx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e90a7561b51e6d2e9213e40591814b6295428e8413c9a4d24a8b7ea133cb1fb. 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/6JWEB7u1xqioZxrabdGxr0.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/6JWEB7u1xqioZxrabdGxr0.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd54f9cf92dbafefc08094682f7a3171b2ea579b98cd705be5ceda25454998a2. 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/1ArJa5I1ryQ3HoDefAw6o4.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/1ArJa5I1ryQ3HoDefAw6o4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc5401cdb0a1dff866b76053f659d35a7c538b11078783e123097ada73039b60. 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/48VxhX3EUpvC1C5tv6L9aU.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/48VxhX3EUpvC1C5tv6L9aU.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f3fa2617e5af3ff1649184da88f0cff9b57a437600a4e93f295b757721fc698. 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/2WvvspVZE1n7VrV38vmMus.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/2WvvspVZE1n7VrV38vmMus.