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 0xddb35d65bb2d7cf5861c564d4a243b8addf0eb40603b5355fbf9e0a1a8f0dc7a. 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/f67d54a0-2547-4c20-983a-11352cf1a6e3.json and https://artists.proofprofile.net/proofs/artist/f67d54a0-2547-4c20-983a-11352cf1a6e3.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 0x9f3b875036b5ffc5bd766add32f7025f1c7858687696cd2f45837937d2b8e2e9. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/FRX201710384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b76436b0738767c3279e91be0744ae15539852348eeb75c840502e6acc42c26. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/RUA582001582.
DJ Gayamu Itu Sombong Sekali (Slowed Reverb)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27940b7287442402575840db9d7c45205d26f712e8acb4daf304558e305c045a. 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/QZFZ32432222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf200ea08b4f3e136cd21e70d948ecd3de3e7132fc590fcd1fec6f5f11611f479. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/QZFZ32463816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe38901c12c94be8f4ffd33de0b6172a9fd3e9981ca70272e79ef3e3ef963976a. 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/QZFZ32463818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb3a14ca8c6b115ed5d9d49bbe86fcdf674508b462c4108958568eae318ea24b. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QZFZ32463819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9174164f6b0f88d72b258138891fa9242c616b13773940e0c1f88ced9b58dd4d. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZFZ32463820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7704a68a7fb46a4e80ed4284663d3be40ec468424be803ddd8c0d37b4d4ed356. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/QZFZ32463821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e1b6fd266e091272d2c90d383d5c5e22199bede4e641cb765a4b9a44948643f. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZFZ32463822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b9f2054596a65c0a83f9d86c93d44e636eacddb3cfcf1bbb79f4c285e6c698. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/QZDA62482480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed69aec3aa295a3385d32cef52cec0c7d0c53d7848a2cfef1c0fb0adf84c4c9f. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T15:38:13Z), 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/QZHN92499266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0933a52886d488533d38b183713c1e1bc69ba42c5abd1ae07eb4844f67ecdaa7. 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/QZK6P2439390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x113412332a05856eeaf00782365e3613c966b599b2f6c16afdac701daf583cff. 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/QZK6P2439392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b7ecf58eb9b856c262595251087a381d1015290f5514084bbc115e812d0bfe6. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T20:40:29Z), 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/QZK6P2439391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfba5ef18befb2bee0843f0539d39f0d9179bd5253d90183c6bab48e33ef5b2d7. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZK6P2439393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b7245ca26fb1f12955a164ccf955e7a32af2d0496f3f44bf5b4011eaae75fd2. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/UKXN22415704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce9d94dc3e6528b90ac26ee90a552ff13037ee200bb54824305daa5d2487761. 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/QZPEW2523050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e051377c7ea9ba3e077d6c78501b753939eaee2f8889f50c2ad6c1609c9d049. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/QZPEW2523052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a0ba5022a65949fae7995d774ef80b63f630b29b66b141a02947a76a218b73a. 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/QZVEM1842593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x354e478eea3b6d2ac6e65a68c63dec2cb4b8f5c8e1cc49fecb61bd806d13628a. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZPEW2525568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c185458c03f20ae108a9a0ebef266acc9a837a2b9a0b29a6de955f72e7964a. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZPEW2523058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x733fc5f26419de3e11d1b58427d36dc03e51da257915f8abd2167545d6805669. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T11:19:23Z), 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/QZPEW2523059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4dfa837b382eaef8e414c92416fa41b9b1db311ce7e5fe5937192fb83d6b60e. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/QZPEW2523060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb108db2c50acd5655fd48b11586897b918b2393a408c5d4eeae2f97e75571eda. 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/QZPEW2523061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f3a838991fad66e1452e8b81ec99b5fa985b50e3da77d256999b435a6eebeab. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/QZPEW2523062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d484869e28b6e22f3c90df6392d4c96e0d431225f63229eefb07830e2b90d69. 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/QZPEW2560830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1162cd76264939011198b11ac4c29b3fbd67098fa6c1e2a623083e094b8899e0. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/QZPEW2560832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8b07179f124a4f34144132bd733dd4e3addb24e3821e057c38bc1520dfbe5e5. 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/QZPEW2560833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f2c34b6599841be263ab45d06f7d45ba701f9f07ac930a831fc9a1394c246f. 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/QZPEW2560835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe33336c571231a9718cc3d70bb9944d025cb0fc77ffa66fe9fb2736f36286850. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QZPEW2579529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3945f583cce985369509424f81319baebdad0d4fd9580af5db3d07058ef7d4a4. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZPEW2579530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec4a334d5c06d8ba14925ad36a17a4b33b8218ff9c0a9a829991de78dab51c4. 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/QZPEW2579531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa91bd6b07cf83b9761ae86d46cd5ce721450ac2103a0923c9c5771a2b2d5b5e1. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZPEW2579532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92fcc67b8401094318d59db804166ff323be2b8939a8c6789501f4b0de540c17. 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/QZPEW2579534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f5264423253a4e330c5190144c2c71a693314444f04d47735823ac307b105a. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QZPEW2579535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd27c2b2c85e22190c0ca5f98e3cfc9b6eec7a6467b9b6dfbc5753505db331a. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZPEW2579536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647233d27bb7c1a4979d5eb3892cd83e19d98134ffc9dc6f1362082db72c1149. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/QZPEW2579537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb244f763ddd1bde67fc3fed1c13cdca29034f572f95af43d8ceb13434ee6ca97. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/QZPEW2579538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa2f9a808699b8a96afe5cbd141c113300a437ab39ec3350c0cdca54f559ee12. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/QZPEW2579539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98887769cb12b3ba109136e5317238264c7f8b6ca09d9996b99c24faf5ac1ef4. 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/QZPEW2579540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe213c09184b03cad2dc8dbdcf3be5756ac729ca254111eeb17ebc93d456500ab. 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/QZPEW2579541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e2d3bf3b6fb88184cb72ffb95418ee5916d4e8e86f014a6ac2180f81a60fe16. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZPEW2579543.