300px|thumb|upright=1.35|The Fairbairn–Sykes fighting knife, a modern-day dagger A dagger is a fighting knife with a very sharp point and usually one or two sharp edges, typically designed or capable
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 0x279c4d59890808b5791b14dbc8386a25c1803da81754142655f5946e54c03fd6. 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/a2d03e6a-8319-4690-95ad-38d040c0c856.json and https://artists.proofprofile.net/proofs/artist/a2d03e6a-8319-4690-95ad-38d040c0c856.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 0x7c16ae15b1ef3dc8d4a27925d754ff846f37665bf5fa647d8c95facf59d1bd9d. 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/QZNJV2406934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x344b6ab215e715bf1607d03a8a4d2bad64616880d4b6c87af1310c81c2c3b68a. 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/QZNJV2406936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe365a51b5469e8589da52b604685a3f99d25af51e8cb130945f3491f504bfb30. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZNJV2406937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b459e5277518eab45672ba10d8cf419bc51fb5df6ba9d8d20b6d0df7253e2d. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/QZNJV2406939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe630668851122f2d47fdb320367e13da7213fbf90dc5c234465f7a6bd8462493. 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/QZNJV2406940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3ec87be9a3171d88a0016bb1c984b355e5bb5e2eb118bc4adc2a4c674eed389. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZGLM2435859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0643d589a0296b1b101b1f30b948781e1d4d66e59c875663d17c7955a9a0d6. 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/QZGLM2435863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x270ac36a77709cffa9c20fb535e3945ac21b49ca850abb083fceb9a848e0dbf5. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZGLM2435864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f5bfeb29709761b4355ed6be4c8c3c98146dfe0c55e7c5ea5b0872439dbf480. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZGLM2435865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49a1fc2ce3bf51b9b34ca4058207f810f7103fcef31fe5ce090db90595225b90. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZGLM2435867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe808518d94d406f5de0135688bc4715961ca76198c168547ed9797d655287154. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/QZGLM2435868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6991f87b17991c7f2fc1bdc0b30ef3d6cbde7829ff410b9cc96599671fb4f6a9. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/QZGLM2435869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f2585df15ad525d3a65dc7849e40488be63c329b9a0e7924d88de01c2fb4d2. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/QZGLM2435870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84b968a3155313ab26a13f2acf0d11fe66aff3956694b13b535f652108384bb2. 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/GX5MY2350750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x968a65b8e4e10e5ad8ea5558862c7001033d9d228f519605b3674851b114db36. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QZW9L2361431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb83d5f40fb93ca4fc04f8e18d1f0665e3ac4e7d883fa050a64bf6e39acf5976a. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/QZW9L2361432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce381d0b7794b8ed4e09bf328a8a4ed231449b262c314e9d079af1a8065fb607. 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/QZW9L2361433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b1632db3b1c9365264041362e53477f247f88e3cf0111393832244ade4159f4. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/QZW9L2361434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00e32098adb08b193ae8038ffc6d040010ee078d0adfd28e1e5927afacfbba5a. 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/QZW9L2361435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x842c0820ed9c312435026519bf443275ceb4d665c18f7449b30a7c7a30e84841. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZW9L2361436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d91dc3a0aaed8b48263043df339c007f7aeefe4e1bb4051f297ea3055773de4. 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/QZW9L2361437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bad9264f16dcefae462f4b7197fa19e958b8ddc2774ff60bab3809799ec956b. 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/QZW9L2361438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45bb9bed0036a1625a83671d2556f27cd6c304a54b430560c8e4a5140bdc161f. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/QZW9L2361439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cdaf04097edbfdd455d2870cfa1803bafc7e02def2b16fddfd8e9b902a14b85. 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/QZW9L2361441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d8eb1f3eff3a4ad8d09564fb20ef6ad8e8daf00feab3bd158d07823d468d604. 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/QZW9L2361442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb539b789ecf7dd59fb79743473b67592a89e5074b8e1eebe810636c12d138875. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZW9M2355176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a536fe8de21aee13e837ef37239b0ecfb265113b209061633bbc5f6ce68baa. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZW9M2355177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84cbe8567b00185bd8e42888320e5a08e04834bf618c91578b0a13b693267ade. 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/GX5MX2192348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa62c8d92673676bd30416a7e938ffcb0455c81889362f930ff5e5af22bdb291. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/QZNJX2438268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd71ec9428a964dab436371cac9d182f5d0d6a3a59898a14e0a167836e377dd31. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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/QZNJW2498844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x057f71bef9be956f1e9596a1fbc8dc7fb28fcb577de1482d0cf426339253bb3d. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZMZ92454435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6ec8d1d142f25296ac9069142e3243f5b5c20dd6d6477458e367b7311830c7. 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/QZNJV2440460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b8bc9f054cc920b54655d8b6f391a2a994236b6b1aea664df767087d07f2835. 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/QZGLM2445989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x021f90c53bc53d948666e989ac7cd62783ce729c2c4006aaa2bb2b4965d34935. 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/QZES82454752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc3f0105d621fe4f9ddcb923449072cce7236b4939f37647526c91290fb2dec. 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/GX38U2361251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5a6b71e5f46724405b94f98b2e77e96f059bb62ef40068f0d9f814389c95821. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/GX8KD2349313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22cd2fc7088063b6bd41a8173786b8bfd9d85b2904f85766e59ba1822f73df1c. 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/QZW9M2249969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e49602bcf06e600253d3898ee87cc718b6d8a93fd2d4f58086be93f4f253d6f. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/GBSMU9835943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcbe86b1422bd2f7257c5ee49e83a78d6cbb2084396733b144d7e5d527dbecf1. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBSMU9835944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63bac50d9b34055a8eff6d1fcd23ea75d9cc00ed72bedd1b50f5289e6bf26523. 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/GBSMU9835945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e92f186644c820335232d86e916f92e6ff979af81ec5ea38ea32a1f278654f1. 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/GBSMU9835946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe444155ccdd654095dda132f9faa92c966e05146813b67be5f797277f7dfd0f5. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QZNWS2078537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c39100f0dd71b335df6c22828ac061f20b66e27f907e379a34161fbf76eb97. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QZNWS2078538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce4e6ceaa089e0b206707b1507ff6faa56756431dd57da388bc1bbb1d8ba5b2. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QZNWS2078539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34bb8f626390bbbeb31d676d84e1c15175cf00c14b817f3c3a16ff18a81f402f. 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/QZNWS2078540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97118432eef229cdf2eb08573e92a23f4f5152e1ac25cd7e2bee7b42d78ce689. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZNWS2078541.