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 0xffd9b358623ce8b65e4b71b0159e694109e01329f60d9f1bee90c567be0ec48e. 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/f7b2bbc9-9b3e-4183-ab3a-d9d429c74ee8.json and https://artists.proofprofile.net/proofs/artist/f7b2bbc9-9b3e-4183-ab3a-d9d429c74ee8.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 0x92b7bf2583b9a7fdd74774f0a7b4772423aa54f96ea088a8d329cdfefb87b158. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/ES5590600241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08dcee40842e97d9a31382aad131fdf40784919dbe23166eacfbec7bd1747417. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/ES5590600242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2de65bd67d5ec3bb38fda624a4f03d6b1fb326bd0af542a23d056712a3df0bfd. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/ES5590600243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3975266606999af622eda9e637bc03a0d2d5e6b4f1da494806327104c56e710b. 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/ES5590600244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0df35f66eaf91b9e000ef2c711dec0aa364aa779fffb0b23d1d47496fce0d89. 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/ES5590600245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7d14c3fa4f314ba344a068f39a479774dd4d9384f0c21ff984fa4ef1b582b0. 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/ES5590600246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7d1dfe0986a34ff8b36dba446c3c61ac4e11148b935378e7e5a846a96193a0. 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/ES5590600247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd62044369101175f1b4fe57273f4064b1537365f9c957ef62a5aa262d93fbe. 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/ES5590600248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0391ddb79e2fceb367860147350db1df4a670c973bd8a720b1ca5c832aacf16a. 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/ES5590600249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe091927a9177f71cdaf4a79a9b369d78544ddf5fd516d011c1498bca4f0bed17. 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/ES5590600250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d50421a8760c49c2817ecff0607765db12fca588d478b1074c0ba20577048f. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/ES5590600251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe79f3ab872ba9a24dd0cda32dca91b6a8fca699c62e0d8c99f32f1d01e2d0f9. 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/ES5590600252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6b4d9839f6b02be6dd793c2cc7e3da0514988b14461131379c3f7de37d10494. 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/ES5590600253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629c7dce73c05eb75be08bc379c67504aeb0786861b27fbae52865dd2cc04942. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/ES5590600254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb52bbaf3613c9db5bf76bd24a0b0a248622c205dccecdf7b299c9271fee81ecb. 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/ES5590601150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0450b11fcb410312bb84e98e8fc5e2335d83ffe00677839d52308126ae6aa795. 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/ES5590601151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e04614bbcdeb5c357c84e13a77fa73087cf6a1df870884f61aceb14997d13dd. 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/ES5590601152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a2a85664308bfba2c79fe64df308a8a195b687301d0f50fd768898be22f727. 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/ES5590601153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9aeb30c631a38b35717c77ec17a04c6d9d2a417ed274a76e9a594198c04283d. 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/ES5590601154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf16f1452d9e7b0bbb6ccfc6e7b1ce8e20a2efb158d1a332d3699f791971fe39b. 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/ES5590601155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf21d097597764591ddfa39b41ba9e52d40c035d76e0f3c0a581845facd52efd. 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/ES5590601156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06af422105ef40dab7a537d6f0ec3dc750ace0945bee91078756e8df70156df7. 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/ES5590601157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c22badabc79f7ff682d63c1cd2ed0c93a61fed174ce949124e4309add661a0. 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/ES5590601158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe341e8094d4410ac42ab836078a7fd0afdfb31e157079c3590b3c2a010247fe1. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/ES5590601159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x420086ef57dec847e697853b93e4f3eb7b22198be6fb3f48e4d0a83554db674d. 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/ES5590601160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eb7324248a48b89ecd79052e57b1407cd9420de181f714e4299353099c78269. 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/ES5590601161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea75a4a895ca7b34ba680e7f44d278b7110e0115d0cd9e86b404f9acc30bc038. 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/ES5590601162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05b274465a2238ff4bd0c9f59224069edda7ff0f901040fac8703b7f60830461. 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/ES5590601163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92137460a50d358bcc7ef7a6a78d868b375a3142f177a4ad6ae11f564c45905f. 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/ES5590601135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04258d09efeeb68bd60f0ede3a89cde995460876574e6894a34e2fe28596cc5b. 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/ES5590601136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b3a03a0af6dba02d0d896c701167b18c54411e9ceb3474bfa4ed208804d1b2. 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/ES5590601137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2caaff60a6d30a40988c3be389d8aa56a9d784950b71336c74c9d167727833c0. 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/ES5590601138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac7a22c3948f61058d77fc6e095819143293682b2e83237f11572c156ab0a3f5. 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/ES5590601139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf432fc28ed2ad7f379a52f8823976a190e717b547f5ab9a384661699f8f30af4. 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/ES5590601140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f054dc8206fe5b8d575a0b555a573496f157322c74fc666bb715a3740ef9fe5. Chain 2 (Bitcoin): anchored in block 960230 (2026-07-30T08:32:18Z), 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/ES5590601141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe30de394976cd454484ab61954b79c6751d6907aabac5a53b57e48e043d6904e. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ES5590601142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa23f6d8097037210c9cb489a98e10698bb059edbbfca47bfabd727874fe94ad1. 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/ES5590601143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec0e729cc1113963229d14a9f0f6a127c0995989804943eb9574bbd100e92ae. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/ES5590601144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fb8fccfd1789b870213a3683785e292a84c2e48ab7f08deaaada5d64da4326c. 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/ES5590601145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0009702a8b6db80d8089ee2a96be4399b815d11c018ff1c982085a004211ec5b. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/ES5590601146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf926c7e7f0ab01e6fdb6019de508c61135f1d63b65a814271ca72207541665ba. 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/ES5590601147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x536216d835f1cc033972568a08d8370b158930cd5f0b93bcf99cf138b0df7153. Chain 2 (Bitcoin): anchored in block 957025 (2026-07-07T10:59:31Z), 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/ES5590601148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f25f1d588d969337cf7fb72e8390e47769eab6ddf0e3ba4832c26ac80f5d58d. 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/ES5590601149.