Zebras (, ) (subgenus Hippotigris) are African equines with distinctive black-and-white striped coats. There are three living species: Grévy's zebra (Equus grevyi), the plains zebra (E. quagga), and t
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ba8a2646c58a8cf4a97210d7aad3b14e28865876c85ed7141a8998cfbbf0c9. 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/bbf97e57-941a-4217-a2da-d98353221b0a.json and https://artists.proofprofile.net/proofs/artist/bbf97e57-941a-4217-a2da-d98353221b0a.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae7939f8701e7a8c7321653911211dbf858db0ce362c986d8d1369dd9eb84ff. 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/USAT20001193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c1bc1dd4c2e30cb377b0bda5dfcd1469570442a35be4b51f006441bc75fcab4. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/USAT20001198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c7cfe8bc36c7eb9a863c2c4f370e72abe19f45ff8edc329f5d82d3807476789. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/USAT20001199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefce64075ce12e83713cfc8ff1edb9c1e32141c647faf945238dec36050be4b5. 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/USAT20619853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5946e5cea940e3ea429005b3105a667ae900503244cda13d8de3c98b6700392e. 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/USAT20619855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cf9f4f0a3a3e4d037d38d0e9da9ecef7bbb37d8fa14951f23fc0e9fc8265c82. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/USAT20619856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x108988bf32614f8eae4243cc548c2a8644096bd2635b1b6fecfeb32e3f4d08e3. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:04:32Z), 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/USAT20619857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x137dea62491f98a63b04ab57ac8ee4e45e77b8e41325a323e3fef620337be403. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T16:04:35Z), 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/USAT20619859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07a9a3766fcea3ec659a1d726cb77f98a8a0e2c858a386425f065ac6f5ec8e55. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:09:06Z), 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/USAT20619840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x632b7f3b0847cffcaa672d342c721c161bd300dae2f596d0a7ba5951ba7e2d90. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USAT20619842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb99396a3c4a4893de15fce7e4628081796d7c1641923a18d37827b4c4794456d. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USAT20619845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb619bc423bf583ceddf1170157c40b66e27caed7df9d00a75bfd1433c67bbab. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-19T21:40:06Z), 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/USAT20619846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65cb2a387e5b6a34d57bba75a28cebcc29f5b433c4dbf2bc2fb0d7b2e22ba1f6. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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/USAT20619847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41a471e0b864d9c60d57e033601b71ba63c6741bf95df4ec6689993b4906a30e. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:02:57Z), 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/USAT20619848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e798fcb62a734d176f5c1020546c8df82a29dc05c98a64a64b8047804338076. 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/USAT20619850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x791d8ed207dbbc9da007947a85ee487696eaf66189cc64d43ae2cfed89b2450f. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/USAT20108511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b9a38a613c222320249095c9bb6651254423a63a6bec1151a5d8aabad60709f. 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/USAT20108513.
Wait Until the Summer's Gone - Live Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8429d2998b9df978dd09bac449381eedc8ebf0156ce5723fd4bec3e559107305. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T12:02:49Z), 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/USAT20108515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7832c8922e501bede81a7be6c79ce29c2a25117518e0604dd6b47da367dfd639. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/USAT20108525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x563ea20a65f955ff7638f1d2c8ab84d4d689db172a04792a72eb79ef9977e42f. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:50:54Z), 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/USAT20108527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd3cd4cc287b0bda5373920e0ffd334df984faecac363faf6352f2c48b84811. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T12:05:05Z), 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/USAT20108509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58bb605b7133b88455cb8f47fb967780090abda3003cf1ffaefee9fa9c57b72f. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USY9M0910217.
Take Your Fingers From My Hair - 1978 Workshoppe Demo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x633f1114f770412303e077425c21b60619096b26b39efd1dea99b74598b09def. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/USY9M0910219.
Tell Me What You Want ('83 Rare Studio Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eb4bdafceb511695084069b74cc3bf984f07958079acf3bce2991c3a1b62982. 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/USA370961586.
Dreamy sweet day -Parallel- feat. GUMI（Megpoid）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aa8f2757f065ef92d95b2a6fc85c703cae7f9cb7558b700780ee24279faaef9. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/JPW462542297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4889f7bce59d1f7c0bc7fb06f109d28efe94095e8c1e89be76b609281b25f96. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/JPW462554323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x628afce5a44a339d15b2ecbfe45627ffa418d992db535d6265bdffb43c6e79a9. 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/JPW462556012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007a53f83a4f1f263d6f447958f576d03d77ab115ff7ccc81cebb3874f272f3b. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/GXBAV2143930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb675acb3e796f0cec25d510bbe9f66ac15f4a3277616b0c4e52f3ea5952e964. 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/GXBAV2141216.
Who's Behind the Door ('83 Rare Studio Version)
100 '80s Classics (Re-Recorded / Remastered Versions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9239a061f9db4db4f7c6f2a326827dec355a5e7e250d3ba4e15053802d1552b2. 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/USA370961713.
Who's Behind the Door ('83 Studio Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0173e14f689335543c9de266c2e4f4934c5eecf4d77e8c78a8d2546afd6efec5. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/QMFME1334532.
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 0xa252ada037ea2f43645be3e2ea09648551b84413bbfb341ceaca1dd44cf547f3. 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/USAT20001188.