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 0xc0c5bca234cb4cd9b68e885ac761473ca5100e852cb8ae57967ebbfdff70bc82. 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/f1a843bd-95f6-4675-b396-47ac4cf90f7f.json and https://artists.proofprofile.net/proofs/artist/f1a843bd-95f6-4675-b396-47ac4cf90f7f.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 0x4917b52ef5e33314bf9b3ee13209b698f93d522dae41a041ad2afc13aa63a6d3. 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/NLFL72300895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8742a9e929f386ac180bfab3c46be0e6eb82b5351cdf18f0aebe6c75a1782e9b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLFL72300897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5698d315296c338989f5f52abc8f1a9902a29dce6d823cd3050e1b24a6ed533. 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/NLFL72300899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82785dcb28ed9414ca649eb75eb0da20458a0d5dcb863e18abc2362bde9a618e. 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/NLFL72300901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfeffc0a9c2717725734a0c955ac8c2f83256aca8e0baa0e6e69a71d71631731. 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/NLFL72300903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4542c44615c78532dc7356bbfd8d657b720bd0f72297bd6f53607af33dee1a81. 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/NLFL72400546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8234601c4a22a728109f6c9770b81b247859f97e52fed9746b3cb48ab58b7db. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/NLFL72400393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc440c3adba83d7a6fbf84d6766df633aaa6be43dd3fd74d0dbe964c096264e7d. 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/NLFL72400231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5496e07276d92d5b64f13d7854b0450c73a9c25a5f9c7c31ffcc77df7af4f106. 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/NLFL72300988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e50c1a73af17f628efd29f51bbb6deb0951e2c6020013581bb34ee28a47434e. 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/NLFL72300627.
Medusa's Curse (Official Snakepit 2023 Anthem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64c07cabe5a5c3086c0d13e9b37ece917e7336a9515791da48e50a26af079e07. 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/NLFL72300710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3520910777e18e7e93862dde4b4c304a5ca0a3e94bad62ba0cf9e05645762515. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBKQU2377116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e31e7f5608c3a75325815dccdbff63b51b34869366bb3f3320d3a9536095b83. 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/NLFL72300472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32884bdcefe7fdea397197c88aeba6ec8746ac90dc4d208118c182eb80310dc0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLS242300261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e50c1a73af17f628efd29f51bbb6deb0951e2c6020013581bb34ee28a47434e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLFL72300627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28125257d8b0dc30f4f672978ab30527f19b224f0373346262843e4b135c550. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/NLFL72300682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b09ad008c9f5401712f0810a8b0e552da08c88485ec8b2d4b5689988c71c2c5. 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/NLS762300496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5cfc7d64e3ad0addfe5b1b7ed847a45bc7c64804095e323de0145e31af2d436. 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/NLFL72300309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a350ab5ff2b9ddd6a39e7238b5982db4180fd07011e7ba1dfa0fea2a38b0b48. 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/NLS202300362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3368956f5187890f25d079d548f2c22d122ba1c1394b65aa1e30ce9031cbea5e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLFL72300462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc826e0d9379995fbc80bff44c08a6ea13ab5fe5196bad5c5ad24b7ab31fdbd9. 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/QZTB32382275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c370e37f47aa88b39a9ec337215a1099d633e142d7705a76ab8f69495825818. 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/GBKQU2387719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf4688efe2d75cd1c57fd18444b4c3a9d819c4d39e85420c3851e535a67c23dc. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLFL72300637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d005b9e94177b6c1156d04c7836f3b078bf51b663e91f4820d52848f174a93. 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/NLFL72300726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x258077cdf5d9a5907bf86af39d57a5ccd7247eaa7998dc39284cfa6e9573a33e. 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/NLFL72300609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb826768c067dbdbbaa2c93ec4870320a2c1603a39560923abe8420a9b4a08fe1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLFL72300722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a5a5123fc2296a454ac507a8ee81e9826ebd9087da4e2befed777fc4c37e57. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLFL72300381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb43c969caf441da38ca670c08a1745f902a6b9e2c1115bb7db153a7841f3741b. 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/NLFL72200569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc8d2965a7cea653199ef41a48db9bb4972d746f05d14a54d06f620c429d0a31. 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/NLFL72300736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e914fd6ed4409d54c64cefa828da61e8f0a445001121efa042fe969915c974. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBKQU2387080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f69fb3a84ea824552c95e6566dbadcbdb9da58665a733a5ff2cfb42aa0b935b. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/NLFL72000555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x197814c2464ec0e4e48bcb2ba1eef6b096f13b3d27ce78d3e7682ac010645c02. 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/QZTB32350292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc91eedd8d72c372bc5b801d8c313e9aaf6bce5982cb4f3886ce07a129014fa7a. 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/NLFL72300750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5d55d77a17a5181e50d874acd422777b779c0739e37ee7d1fd1d745de98638e. 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/NLFL72300419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x846cfbdb565c8bd363a0490ab3138c09c5242dc7af76e42444ec03618ab3b49a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZK6L2211519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4904a5226a24de97104d408e8806a6e35ee59a662735825bd4ef3f97665c9c14. 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/NLFL72300772.