Marea may refer to: Marea (ancient city), Egypt Mare' or Marea, a town in Syria Marea (band), a Spanish hard rock band Marea (restaurant), New York City Marea Stamper (born 1977), American singer
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e613b2513b820aadea19fc3d733a9cb092470fddc136024613608a8703e6335. Chain 2 (Bitcoin): anchored in block 953616 (2026-06-14T08:58:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1a7bece0-aa65-4eac-ba3d-1459ac929cef.json and https://artists.proofprofile.net/proofs/artist/1a7bece0-aa65-4eac-ba3d-1459ac929cef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x253f26785fd8613f8f1598271ff2ef101871ad114222ec9507f4aae273318385. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ2302714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64b82ff5eec66b3477bd7fb856ce54a2b6f8b0554edbc73bbf664d23bd742d1. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ2302717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde84b5b7bdecda497550a722ef91e0570e7bd4f0ecb1e219aa3d226181229221. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ2302719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d066ac972c8199e959978c876bbb6e9f00c91ed634aec657736d4c4c6a7adab. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ2302721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2923085bdaca8993bcce8f55f0917b321cac0c497bb71b0c8da58e7346699d6. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ2302723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47ee4e3ec7cc261fce19b997c8716ad9c3d6a65968687fa2f3902a5aa9e4bc89. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ2302727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad0b5ae652d722b23494daad4c2e865d754ff4a7bff3a0e9e6e45ab4ad4cbe7. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ2302729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e5a802a907b430d26267eaa75b93b16abb47d396794579fd34c4a8bb7d3685. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81842825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e4aeac69e91ba8b276e2bdf1573888a520b4d64bccc78504b782328982b1b77. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81842826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0123aff2618965f88789f972fc789c338ddb10fa47b104edc8cdc849aa213359. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81842827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74f16b1b4b9f2e38e08956b58bbe0d5fe9c2f7789bea2cda676713be4f74448e. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81842828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d3b9448fc250105cf1d070e2dccfd3f0d4fc427ec82a40309c2b313d887be1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81842829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b4e035c2658786748336d56a60ffe078a9100a87cb910a2dca1051a2200d7c1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81842830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6d588337473732b99d3383496f89da660e0e94acb0a73394f5bb6e61cc7889e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81842831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d0217ebea98aa48659d3d032fb596d0f9fb59c04ceca6ce04419ab04be03f02. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81842832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab19d1b7bd06f56b25bbdb3602c4ae9cdd4d505aa6cb6aee42507af627b84e7. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81842833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e465299de516429adf9f6ff12b2061e9c97474695bc73aa507a1eca534b3387. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ2302759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84f977f3880f173f21cce468b81771356585a58f363fe7f2b81544b1c1ee450c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ2302761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcfb7cc93b0d5a8f83b4d1d0eb63425af55ad35d793f7cecc360b910971b5dfc. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ2302762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e4780710b1651a3b44acef2fb24b69b5b2b6437b0fdc460a01479ccf1052f2f. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ2302763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a0b25a55b32dc3f7a18b70dcc031c8ddc472df42efd38cc046b86c9e4e1fd6. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81842770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42d538f049a33d43aec70ef8af42a3c1429979f5519334208db5f96f5aea7477. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81842771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3123c9646856db769d88bd3692b161874823320e056497c3d7c10c91ab357399. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81842772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5ef9f6665706ff231ab4a798239cec15ff3c5953a66fca7990eed8e61205908. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81842773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6201583233356bcd95ad6d72b3a919625a2e48abe39b0c99d0921c305afe1208. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81842774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d2e2d90c655fb475564e223405aa6c512bd5dac1388a3c79b26aeb5f9085742. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81842775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a1041c4727b6c8750b10526ff09900c6e8bcba9dd2a8a68f85ceda15fd75041. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81842776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee440314fe974c6bd9c1e209328257c3ded75849d5c8fff0b183c3dc1978c295. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81842777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35eaf4c1ea3a3bdf62b5167855bea8a559a2e935bb19a26c1184eef8ceb8dcf7. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM92067497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe53b811ce912546f71c3c0dfad673ac9556bf899a97652f19a7f482dcbedfd32. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM92067498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2734b989878e086b974495e03ea55936ad8a0afe42c79cb82c9aaf9a5285727a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM92067499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0cb034d0957268572c7f20e5d89e888f4b9c7ac85ea8f457aed8588381b899b. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM92067500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e893693f24d2e001ce8692d15b71dd659177b6587f22eafd535fc098d1c6f96. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM92067501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3834476059e7b67d2051519f8f60884d045dd5232e7af99b9d16a0bae2203c9. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM92067502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb55b45bc002b52ba7dcfd3706b1ba75c55829bdb5db908990c31aaa390470cf. Chain 2 (Bitcoin): anchored in block 960339 (2026-07-31T03:13:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM92067503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a46539c0cf41eb01d7f3d87eee73e576243cf95b7be03a5446c6e92d98ba64. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM92067504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7be345db743ac71041e2d2b35b0b323cf2ebc51380bcda1794e4a7afd2d2bd9d. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM92067505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3bf41696849b7a47d1ed800c1c424c33dae4c02519c712eaded36c540e00638. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM92067506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c211e339a432b9b8267319201cda933d3e73c9902b04dbf20b546c85f3e9362. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM92067507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07014cebf79cd214bf6a32b151d9663672f4de54824f7fd00533906422938b1e. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM92067508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa60d33e1be95143bca2813c6fad2a564bcf92d6bde9541b482f9b5eb4110ee5c. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM92067509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa417abef9b5acc21ba5bc97afcfe6f78d0e86330d7907416252c7c4763f2e0e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM92067510.