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 0x3dd37d51350025db64252cb6fd74993894a395f8421147a965b42062b8ce3e83. Chain 2 (Bitcoin): anchored in block 953695 (2026-06-14T21:42:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/72240893-3598-43e0-be5f-a0368a22926b.json and https://artists.proofprofile.net/proofs/artist/72240893-3598-43e0-be5f-a0368a22926b.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 0xd39c239010e07868bd81d5a0f91d11b04924ec536560be1a4a2a3a689bfafc34. 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/TR9522100235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c8b3950f5bfa6d8ff09c37182b18f72ee70365113aec1229d039741b0465a17. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/QM6P42489164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5de4920ea89823577e78facface4810d320d4f63490b7a869e5ce2233d2c4d44. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/QM6P42489165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa48f52d887ae319700b1e5b77dc93a329da1865a9cbc40a850c1fe10fdb387a0. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/QM6P42489166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecc85609e5c1ed170eeab4090bc237de33acc3a8d22572fa5fb05e1e1112bf34. 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/QM6P42489167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x270a0add124c0ba240261f2902a41544a71da4420f630209cf1e6f3c0bcc3dab. 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/QM6P42489168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e8f6133f377733a61fbcea411c27488b94d223e8bd03787e4611ce580ca211d. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QM6P42489169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9df495bbee51761f6ba05495ca4ccb2765b8e625d5d86ed23d9a533d88da122. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/QM6P42489170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ade575b9089071481bce3daf938baa05bde6c1b1a103a7d76fd7f61f51f18a. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/QM6P42489171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb8945e5729877b07ac7426a84cf6b98707394f4305cd961f29ca3bb56593fec. 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/TR9522300292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b0902abfb01a30416bae5e944f22fbafe8bab27446e17ab23edbb3bd99dd3b. 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/TR9522300293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c7a675e7f3fafdf1fba9e94321f55f41f33a031186bb3128ca226e6d1d69115. 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/TR9522300294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b0d34dd1635508c62d48968dab2d65252af05153c08c082a494f00c0d643691. 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/TR9522300295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e542c7a1182102602a7b9cfd6d6db8bc165773a16aa6d35149c60a5f5b5ea5. 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/TR0111800042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc96c344000b9194117d10d480ff64e11f114358b4a51e9ceb0a9feef08f30024. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/TR0111800043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d1f570ce397c7ecac3ad9b9c68880d68e19789e7de488f7659982a9b8f0ee8. 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/TR0111800044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd0abbecc0dfff27925f35641bf09e6c9792597e548c9a1914515f985375795b. 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/TR0111800045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd83c1912f8c0620f79931f90632b00818f7a1c372a86a867268623a143d0934. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/TR0111800046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0bc6641c2a5c2126efc3f1c404c685dcb71762ce9371d0f46db3419a587999f. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/TR0111800047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92e9ac19189450db9c67d9771a095eb4bf0de7cfce9ccb159ff3523ec372177a. 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/TR0111800048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0576a3b84d2eaab086608fe4b6b223aa60ea24290fa76e1047bf7b6add54a3b. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/TR0111800049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x751022406b681a49e7b01ad1c2e1c3d91a754187fa4fb0254bdf13db5ad7c27f. 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/TR0111800050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x737a76fa45690f731a4464ba32871b2cde5d69e3aff0ef775311f4048c3662e4. 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/TR0111800051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0249bc9884f490e6d638bc1554a8e2425b49610e7a483eb175ced9dd3126fcd. 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/TR0111800052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c97c92fc9dcaf6f7b5e77371eb2a833f6140f892ac3ad869b8ff9eaec41869. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/TR0111800053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66b87e67ee441c7fdbf2867efb6765a5a30b36d8c3153e03a29471c0ccece24. 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/TR0111800054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7e4f01076e7dc3397785288134b4d7ea1676533ea2a58dfee586c4d9441c9fc. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/TR0111800056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa2a0f769b3769553f9276cf1253aa6c0d71432213fb587db512e85fff6b6abd. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/TR0111800057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe570d97ce0614d057e650f873702c9f8d9b573ecaaa5d7549086e80f04a01ae1. 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/TR0111800059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7bd724605c4fc100e33504d92d0bdaa2afc4dce628ad8ad4d0500383237f8fd. 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/TR0111800060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61f91fd4c2d39c23c2ae0e8dbd74111b84ba9aec7f1f249898fa2fbc3be4d31a. 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/TR0111800061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x730c519c81068cc41456d75f3db98fd041a5d7621f3bb8356dec098301eff044. 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/TR0111800063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f67bfdf69077c755e1da114e766378e2f5aa7bd2037455550cfc260254617b5. 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/TR0111800064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe45381860da71fad52e50660b4fda0be5c1e8af2e8f50e7b5af80f1be320939b. 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/TR0111800066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8844aac5d180293549f317929a6eb1ee562d1a75293da4532e0034dba633a54. 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/TR0111800067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5303ff0d39812bf0e277b5ab5aeaf78033efbfea3499bf133e1d44df2e3e3052. 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/TR9522100037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59f57125933058a4dbec69a9a3179ce99be936df04f20f2c532aea824b4536f4. 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/TR9522100212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9670ff6ab0c127a593e72154593fba11443a95277b57884743a06d6eb773f5bf. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/TR9522100022.
Kaygılar Park / Korkmak İçin Yanlış Zaman
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25736d54b72ef7869741359ce2601a9241a947edb9ddd4b450ef0d78e3ecd8ca. 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/QM7282328108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf35efa0a6ec265287dbb325bec41a11a9efa0029c1ebee8fdebd80f7d5d457d1. 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/TR9522100183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dceba64bef36a372e0a05687806c3762bedcb2adf3d35ddcb3c4438fe3de0ac. 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/TR9522100138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f434070090cb22dc3796862b7ccf164e26db49044ebfcc69d219301b2272469. Chain 2 (Bitcoin): anchored in block 957249 (2026-07-09T02:31:37Z), 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/QMFME2574887.