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 0xe5fca773f27a4b650b52f3e68b6595cc1164629a76bd45528d190f9a256ba9b3. 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/dda1b682-e3b9-4d12-8881-cd86ff5854ad.json and https://artists.proofprofile.net/proofs/artist/dda1b682-e3b9-4d12-8881-cd86ff5854ad.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 0x780fbb82cbc1877ffd9ab1ab82087446ce484e3436aeead06a8e28270d41f98e. 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/CA5KR2210552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65e79a5b7b49fecd88978e15ba91bac6bc8af24b21bee184b1160ab91b79f896. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/CA5KR2307639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31420fa4ee7f197e84b48bc36d270af6a1f33c59935f486a42d6272a36d50c81. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/CA5KR2307640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eea698c2f39071ec24c0ed8173875aaeb1cb02f4e7379ead655f40fa395e23f. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/CA5KR2307644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x780fbb82cbc1877ffd9ab1ab82087446ce484e3436aeead06a8e28270d41f98e. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/CA5KR2210552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5512ee67f1da2c934cf846e6138fcade2365d197bd99f1faa7d26e7d7b7bfef0. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CA5KR2379663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3d4b3b36dcad7997ebbdefcfa73c0bc3db5b2f9e8ddae075c97b89b8331c401. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/CA5KR2410390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x985ecbbc3d775581c5ef0d7fa0320cf3bda6c52a77227d7bdde9b01804024eb4. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T02:11:23Z), 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/QZTGW2400367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf759162463a69f2bd7218f81e80c8a1384d7490276cbe041cda8a11dc193bd9b. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:42:31Z), 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/QZA742423818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac17e459a8f1bd9597a17f5af2f713ac3c82bdfb87f4cdf53f6d6aeb1fac9f11. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZTGW2402917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41d1a753f77c79e42da9827bb1e5ce9743aa4a3978764f113fa22d2633e3e65b. 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/QZTGW2402918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f7d800eb53464f3e20524a988b47b36e750bad9cd0f5207abe916bfe4e80f37. 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/QZTGW2402919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x546f5bb490067028f07bdd87358acabb08890c31a7622846f8e23c73d58eeec6. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZTGW2402920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d66a5122be2bece09bbab1c8038ca6e507e865827e6801040b4bf3baf3a61c9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZTGW2402922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde19cf572e7e439bd5be5872c251ddbc81433cf4485afa243c6bca62630eb96. 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/QZTGW2402923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75e7ec146186558cd91f82b479e4d80a04834c01110ec8e3eba96dc0c29966ac. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZTGW2402924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e9f05033010267e6f364e9050c72a99fe32127f17db230959457a7f6784c5e9. 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/QZTGW2402925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07edaf56fabc48851054cfa7a237bdafd2442b30138c4db8f8c9e968cece488f. 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/QZTGW2402926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fdb3a1517085982c6c1fc7e67847a00fee4855f1bc690ab3f6b90177882133b. 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/QZTGW2402927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd53bcf7077ff9c0032a545e805778c0edc984c0f4495557ee1ecc95c1d8a04ca. 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/QZTGW2402928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93546c105dae2b213001003ebb591802684a7d9432b4f2c993b66eab67e49537. 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/QZTGW2402929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb161bf251c056b79f9fe941d6d28db94d7b9f7f6523d805b9e4f30cb0836e1f8. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QZTGW2402930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec4c87fbd7d31f038f74ab056b9ef004077b4b2ef92491e2c972cdf0b59ce7f6. 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/QZTGW2402931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd09ecef3d8f9adbf960b3c99ee4e95d86fac3e7a0b911682a456436f3d5420b5. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZTGW2402967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5cb5d940d7c3e85e903a7387bb2b5bbe9c3e2bcd93b3d07df409edabb20177e. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZTGW2403530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43249a2c4cb883aea0c44a8445ab3f296f302f95666cb32af127bf0a36ea6b06. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZTGW2403592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce7d12162d2fa5d2d2fc3f31ccd4787b589f0660f98cb41d8b29e7dd8293e29e. Chain 2 (Bitcoin): anchored in block 958417 (2026-07-17T12:56:50Z), 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/QZTGW2403529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5cb5d940d7c3e85e903a7387bb2b5bbe9c3e2bcd93b3d07df409edabb20177e. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZTGW2403530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e1622cf7b7c7eba253906caee11817a56b4925128da559dafa2af5239b69a8. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZTGW2403531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7c006bc57de18d58558fd4b6cab4e0570b17089e965d85866f8954b2a34fb15. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZTGW2403533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3a1fbc4d834b8b381c80ac7e09e705e218ba9ad661ff63801c40f13881860ad. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZTGW2403535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb21ed06dfda068ffde15f649c1cf481650456acdb200fda12036f8e85f15e4a0. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/QZTGW2403536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0698b7d31e0339c7fed4c080aa23f4f42f74c810f71cf1c0b3b3aa8e843f2067. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZTGW2403537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d16948ca1be8d9af0e0fbaa21212c65775b518ec16e13a167213f92e1f106cb. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:29:08Z), 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/QZTGW2403539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41216b6fd382f671160cad5ef72a080f1ba8618fcf3820546ec120591f17c30b. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/QZTGW2403542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf86a794db2e67846402a86052931f7256bf5eb85a3e75f0e60acbca117517416. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZTGW2403543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae1217164c88fcaa12a6355e7e76d1b7fddc5ec39cd1b25929c5603124801b9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZTGW2403546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6356a5dee4dfdbef34a4a9864dc06d92af461e62028601975f0790590bc36d5d. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/QZTGW2401141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02c75b13de9dd0576741b7f23658426a6ad5d3b11166f4c5d35f423e00c18dff. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZTGW2404881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9604b204aca76df6af626bcef5772efc105fa1f7371d221e83cde51afdf52746. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZTGW2404882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12a8feb17631fe02a742837d496357b77f96a7cd14cfc553442373b2e75db491. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZTGW2404889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6bd68c354aba00f92a09d77a89f7b44990bba5e9733e5aabeb76433ce057a9e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZTGW2404887.