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 0x0d53a8fa9b8b575cf2673292d757854c885d03fa69c6ab719c3416a4b97a3f10. 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/f7f83aea-502e-4a3e-ae6e-83cfad0e260f.json and https://artists.proofprofile.net/proofs/artist/f7f83aea-502e-4a3e-ae6e-83cfad0e260f.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 0xaccbc507aeb765bc60ee68a13e8e90972d31076bc516909e14ccb6de6da38d61. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/ES71G2408685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ed5b72d78cbbdd54b895e1aff24aff730b320c74945e78b7b51558380cc409. 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/ES71G2408680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4028fc8b31ec9b7c5e03f4049208a43190acd02e6a6d54602e2bec30d2bead87. 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/ES71G2408689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeca5dd71d06986712d89ef6f20c54d4bcf0749640133c32e40715d9c0b726f7f. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/ES71G2333411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x228abc0ae0379d758b013b4f6124f111c604d1e93d9634292ed6ea8ea0b68e4e. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/ES71G2333407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38f0c04452b1424176bac5398807e10668854c465d89671a1387e4af383adf4. 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/ES71G2243893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb3bb556f1e7382b1c8513db631af9645437c70fa7a92e775faf279730ce4c4d. 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/ES71G2333409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x639c9fba3a0db2190b11f9c7ca3172a47585fc246afcf9b058daedebb98ad21e. 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/ES71G2333416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x285720e5ea8efcd734f0ce007c77ed8bd4997f1ebb46c94e9872acd462b686d9. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/ES71G2333415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcacdf61612693c22b830b78ee84c1ac60c33c4beeb2cd6444eb6bc34bafd41b. 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/GBSMU6369107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd13845d9293c5b978ad9687adbaa2af5cc5ad2bf79f4f44a5fff32c0abbd345b. 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/NL1JL1900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc985c24c659853b91504d8b8bce134e9abf4e98c12fb3f014c954e9d24b7a454. 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/US83Z1790906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa0c27fbf9c6bc6f7eae3bf03daae0d17c361c64f13207cb7cc4d60d8c98a362. 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/US83Z1790907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1371b710078f017dcea4385737210c3792d9655be6ca29d9260719d207f15a2. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/US83Z1790908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf904b029696ec34ac30ec32f3dc689f95bfabc0d671f6bc47f40005114e0b47. 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/US83Z1790909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b6a3afab616d208a4e7d9dffe11b8af4ff69c55971757bde4938b61699f739. 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/US83Z1790910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf857983037f3dc6420f26bc253b40d4cd3e91c7d59aa59e2a02c757a394afbe6. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/US83Z1790911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b91d7b869abf105ccb916930b1bdbb49afc830a498167f8f3b55030b1a5bd2a. 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/US83Z1790913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde9338e353a93a70e8661e0008112ea352dbb2cdcabd17d716602c2030d32367. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US83Z1790914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa51acf97bc3e605d903f5ab9158a9d4d473cd585631b4351af72e2263ae0050e. 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/US83Z1790915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d0f47c019361cd766eafd55dba3b9a6bb2183af790a6e4123c3b2cd4f44b750. 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/QZTV32456591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd765ca1fa5bd452b590a7d5f7d6c41ff9a887f24949421a6d73e01549b64a95d. 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/ES71G2411361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x531428a340c1b9fc12e6ed9727b23cd5f4915bb72a31fbd2cb8e9da9314631b5. 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/ES71G2405941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38f0c04452b1424176bac5398807e10668854c465d89671a1387e4af383adf4. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/ES71G2243893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x869db7671fbf4cb2b02b33fc021ee30066a5a616cbc6edd966c43e333245d4be. 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/ES71G2236415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1745fec038fb280cdcd6f2b13a6344953699ecd45ba88796be27b858ccf077e. 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/DEH742214583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fccf428fcdbd09e20bb09425ebcce4ec75e5e02b09e254d07241193d2f4e17f. 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/DEH742214423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f5d16ff59daf994dfa68824e9cda42778449ed3058846cdbc66df2c9025e9f8. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/ES71G2139526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a32ec89efd30ec83de8419d712e9d68d8a6fdb88dcdaea7b55ada4675a85330. 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/ES71G2143727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be0436c5d495427249cbb31cdbf524e18f2179c0ac4a6413e15ae2b0176f895. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/ES71G2139527.
Tribu Ancestral (Compiled by David Madrid)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22cd791f1b214128715e93831e49113cce6b3d326de83180ca65bbb0acaea30e. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/US83Z2107221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc50b6ed2b076fd43d1b7dad8e0f764684692c4940538a5aa00a3e6d4b5e6edf5. 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/GBSMU7744254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9da4f9e53cb65a16444593bcb36a3c67b150a280b9a908bb254ea6628c5bc35d. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/GBSMU7278613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc62f47f8698b2b661cae485040f19a00610a9d206ef81726cccae5ff564be47a. 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/GBSMU7278618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d67ff5f0eaa9fc95f511ff32258508114694012091d4f00977293de7ccbbd5. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/FR96X1822569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c7ed7f070ea7dbb83ff30e7ac4d84280ce4db15ee5dc791feb3ad4af05ab18. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/FR96X1822570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551975158df725bb3920cf8ee58edc78ca095e86c12f42d6ff2397d41dc171fe. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/GBSMU6363996.
Coigüe - Derrok - Nicolas Petracca Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59b400e8a8fd7357dd0ec6d2e5bd19625fce5ff08f55a56e21b5c3c096e5eddc. 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/US83Z1658759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ea1242cea801ea75de594393c8d25d04ad0e892f51288d983e992552c7cc44d. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/USA291312910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e92719be4b39b9f3a801e207c902930f250843fb463cbf6d1354d8c0ee23b3. 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/AR8TN1600034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x529a79fdc06dcb97d9c219d761fe332ef1d06f7e0e463850e711d7a062b14ae2. 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/QMBZ92011740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c22b2083debdd7d10c5cf864b661960d88eeddd88079a73386777f122cc3bb6. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/QZ5FN2423373.