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 0x90cd17631a4022939e54b5296354b1e0431008dc5f0a4c5e2114b2e42766a28b. 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/38fa9b3a-9182-4c95-bc04-0ce1eb0b38fb.json and https://artists.proofprofile.net/proofs/artist/38fa9b3a-9182-4c95-bc04-0ce1eb0b38fb.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 0x1f143877355f15766cdf0cf8a58439675691363d4d80defc097d982f2634f828. 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/QZMEQ2447240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b16a6179af91eb65bd60ea85fb8d83273e706d1583ad5c1ba0eaecd64865f9d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZMEN2444808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d5cec5d79fca6d42ce107b8089b87f157da6a8d7a166c3c3170aec96969fdb. 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/QZK6N2301159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5621fab3c72694a9926c9914d7d3c601aedd326c787017b2316f669da6549c1. 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/QZDA72348352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f3e1918b4ca0872d8cba4387b7f702e8c552ae961223edc18790a3788406e9f. 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/QZZEB2411463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48e2cbc5ea6868e171a79d492059d9836e96f921b3a2f3bb3f9a8f6db91c19f4. 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/QZZ8A2413856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f0c627f3747788c1439cf334e037205878ae48cf8ab3594e1cf13b3a306e43. 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/QZWV32478095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde533ff91fabcc16df9a2f31314f69685cecc67947e9b15fd515309a93159923. 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/QZWV32447998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1db60229f4b77b38c9e2bf1d2f5dc4c9909f82e9fa8094cf0ec28ae7ae670826. 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/QZNJY2414198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x800feda2b66493dda11c870965c3e12145cbd680b10171696ea87b7645116703. 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/QZNWV2458059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x800feda2b66493dda11c870965c3e12145cbd680b10171696ea87b7645116703. 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/QZNWV2458059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef73ceaa188a7d3b9fc608c1768d15e4f6215ede3fa11bcea70cb271a2df5996. 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/QZNWQ2414979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcefdbe85704268e5acb8ad0119420389933ce15d5f31cfe3f5e6c75f280dd0b9. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZMER2455371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef0a795a71ac277943f773be44dace4c965cb18d8baf7fbc93088ec90fb8b194. 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/QZHNA2439909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x105b77a244c81f278899396b1ed53ada21ff6a05ab3f35ca363daad10b74c0cf. 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/QZHN92470024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x105b77a244c81f278899396b1ed53ada21ff6a05ab3f35ca363daad10b74c0cf. 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/QZHN92470024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a22194df23d18339d8302049b539c995077b514a74365401c2b3d238068ee8. 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/QZHN62412953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5cfdc1dc2f62b0872d46d9bc2f17be8cc82d69bc1610b9732da7e834ca01ceb. 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/QZHN42479286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf8cc787843ed8945dc2e299d85a03c09ec59e496cfdb63782d23b10b09f841. 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/QZES62449141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8258f49a8059e6ee99f0ad5a1897e35a911eb2bd9454a38838feb25ef6895a4. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZES52486178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9122a312bf61820038c2370ae25146eeb3de4f3378ae7a54ce633374e454e6fd. 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/QZES62415818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x294e7fbc15d39c66348bb22a78609a852f17eaf71114c7a1505163d0f5b0f61f. 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/QZES52412820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x294e7fbc15d39c66348bb22a78609a852f17eaf71114c7a1505163d0f5b0f61f. 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/QZES52412820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c9d8c463a452ef87c1490419235daa2d7e805717d2f50f2382efb1deb2ec72. 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/QZWFQ2355753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc6c48163c56fbe1c4dfb197f201ad535d5cfba4d8c6cd87fd49c2261ed7875d. 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/QZDA72492244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec024631f481e598ff8972b0706b18bcb4976c4bcb4de5c2de45745ff008ab5. 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/QZDA72492245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86706803c3b664f74f33d4c829135a91bc468f19c0e3676cc506f40f039c05aa. 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/QZDA52431383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b09c278809635e0ed72874b59dbb43a591e7c1d33402779c2d11a5faee3aeca. 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/QZFZ62420695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c9d8c463a452ef87c1490419235daa2d7e805717d2f50f2382efb1deb2ec72. 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/QZWFQ2355753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6bc004522a4ce0a4c631d7b5db2d267f9f86f98704eeae7a1f1b2530f8fcb3c. 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/QZVEM2372352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x929c218da0a9af6cf3aa51bcfed2a7535af961c68196b0cebf360784dd2d911b. 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/QZVEM2372353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd746ecf506132202f6e41d58a05e739d3686bae6f1e1a5fe21bf0b225ce03ba8. 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/QZVEM2372359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe52fe4cee33768316eee880e341f99ba988506ec2efd02dd12123d331a065e23. 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/QZVEM2367156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99a6cc3e570f42d6db0d0690f52644a1c87dc8c275601187321c3db03e53cd73. 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/QZVEM2364765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ca8e645b00619479263be7d4a2c47336c7cee5fddcd86b4bc5f5a589ca8287. 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/QZTB22351561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e465b826486007b74b4be82093bdcb67b70b804754d31ac8a76639a2be5906b. 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/QZTAS2354247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7696eb2aa2c583c259b9e5b4355b855feb9a7a1ba79e7aa1c08179bb1c0b08a4. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZTAS2329064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb4170b4a24ab455b2ada639143400e34738092c621d523e8cbc8f39ac4edbba. 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/QZMEM2383165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69926dc051865a6c50d41ad9222defd467a56193155320684fa111cf0fedac72. 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/QZK6M2301244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe83ed9048cf92060ebbd9e860200dfba9d2885670d5c6f61b68875e6e75b7b5a. 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/QZHNA2343603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad3355c7cdc509bab75ae7d265eb1d816eaf79b6802fe56daa42e432ae6dc203. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/QZHN62309938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ecae96007a6cd3128f890031e042c571bed6b09d52edfd77371a48e14d885a4. 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/QZES62372515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e89a8012655ab6313dcaab7bb2736b83b8e06e0848858121cb1c95d2b48bc9c. 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/QZFZ62359010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc7311fe85cf17f2c1075408301c044c53e8247f29f5a3ba7aecfcdcd90cd808. 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/QZFYY2386665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb69fa1716c1f7846a83e2c18e8aef870a72a1a2a1f0fce72fabe4affc8e5a1aa. 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/QZTB62286328.