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 0xf8510417d9b9929a82cbc0f2fa257e1789f9426b7bbae1ad981abe997af6d466. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/38f8083c-afa5-4aba-b927-3a75f2a4c2b8.json and https://artists.proofprofile.net/proofs/artist/38f8083c-afa5-4aba-b927-3a75f2a4c2b8.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 0x05e9ad80f344cde948c122921e8e16a3e7d537747d58db68eb4169a14b2b4480. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:35:27Z), 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/USDHM1631219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d8001d5fc536f0194f3932d9b2f945c92eae88b30ec898e1284c62c6abe3254. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:03:43Z), 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/TCAEB1981517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee65ae95e2bf7333d86e73b0cf2fa3c494111ba5dcdcf11e6bf4df94cb1948d. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:02:12Z), 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/QZGLM1967706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12046cca284aba48c74f0a3883d6e3a6f848f7a35b7d4c974d2dcbd6b2ce860. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZGLM1967708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x902d31fbf19f65ab823f5bb857a9080ec341848de5fb596440f5491a42aa50a6. 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/QZGLM1967709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2007f9abe4c63931d687ccc73a910952c2ce242afd8dcf2de48f834477d73f17. 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/QZGLM1967715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc17e1a61c8d1c2cb032ea4f65b13c908e791189d8a86f508fc930ea00a0523ca. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZHZ62045160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e4a843231be57534b8c1480cbc65f249cbd94073ce7b043da4cdf5cb9aba187. 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/QZHZ62045161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35777bc18476f094c2ee6fdb59578192da0d322f1b6b7d8d07353accbdea8117. 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/QZHZ62045162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeadac6f565ca77d60b686c1b0fccc67346e63469937c531305744e03e5881da3. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/QZHZ62045163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4392cfa62122be7b9fc86ab5b9f842fef4edf18bc0a4341dddbd01b2744b296b. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QZHZ62045164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f1866663fe36b9ae5c011a16a37e76f1098393cbc3bf24f38b17edefc8faf63. 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/QZHZ62045165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1045c3f491153d16de3277e6dc0e07c6706780bc3de9cba557f969bb5186f681. 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/QZNJX2011962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f04ad934f2e455bbbf8ef0e1eba2610fa6e92c7aea163ea01b4e64a53452af. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZNJX2011963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1cc1427647ec288d1861c85a24a63d7b4637746cef452b05a5958720555d90f. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/QZNJX2011966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1045c9af0dfdc00f4c1f4088cf1f6c86ef0101a390048caec8a0c8c15c6b05a6. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZNJX2121862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeaa485e0ec94ee169fb40627bbaf8a687d2e1f8b3de40277c00fcba8ffdcaf7. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZQAY2289000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0708acdd676af0e7ec641902fb1e1ee6e9944bf2a515651adb8e60b591af8441. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZQAY2231795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b3db793817799d345edb4b5691441859dd35080bdde8210dfd51b13f9b438d7. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZQAY2263542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c280e2bc186193dfdbbde46052fa258f95a822f9ab078e33569dcf26dec9d0. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZEQU2301536.
Takes One to Know One (feat. Nu Breed & Jesse Howard)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09cc3b8ba9c848b2b8a0134987696c39e7fb4e03f080fe11cca7aa68be7a1513. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZEQU2302097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6efc6748a02d519129d89d2cc27fb2af014ad1542ab360db52520190e3677635. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZQAY2415418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7431ef28ae14a253ef15c22620b05185638a4a051d168faca039628bfe84139. 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/QZQAY2426519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b40b35cace3c6604db60202e81a57238eb0e7ba6f2c71a8044eb80d09a247d2. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/QZQAY2402812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b0798bad39b094ec634191eccb50f9b86b819a9c35193db496e019fe0840e12. 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/QZQAY2454356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c561ea6c36420a93880768b1a86898cb580ea10ff55d5af26995ff5c6f9e32. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZQAY2496834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b86a8d5781e2a01cd1ef4afa65e99bbe011a464678302f84b23fa2e59f115ad. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/QZQAY2451108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec0697d3256a07df1c2a59fcd182fec3a60fe3544a28928c4a11dfce0c8c4bf5. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZQAY2429381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4beeccbd230b0de6410d7e560b2871b5da30f3b889b856c0dc76b64f12fd645d. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZQAY2417381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c719bdadf9e3c88a21145eae09354426a68161da38de89b07ae9d5df8c42449. 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/QZQAY2434075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a92d8776f61be93feba94367230e201b1e520875b0d5e347c01ba50e975097. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZTLA2511837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa76c72d2965aa207ddec77ff6d8e74ed994f50e2fce455aee0f083420f7d22a6. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZTLA2507476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4756e5a9520031e6b5e43000e34816ea7f9333f20f876ac1224449967eef047. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/QZTLA2530103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80886388af3a28184d47ce6d08b4369a03fcdde6173e8ea8be5a105637a93264. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/QZTLA2512689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ff03b95beb44612404edfacb3aba54f5714e0badc90464546764c335ca9c28. 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/QZPLR2256511.
Stone Cold (feat. Who TF Is Justin Time?, Adam Calhoun & Lil Wyte)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x968b5d25b45f75ff7cf10b443234118c14d40d2ac2628823cbce36d2bafbce4e. 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/QZEQU2301491.