1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x820a718d841b19f8cda2e0c1dff36f89a96117d50e49d54aab03356b0c7afef4. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/127a4b06-df8e-43fd-baaf-979c497725d7.json and https://artists.proofprofile.net/proofs/artist/127a4b06-df8e-43fd-baaf-979c497725d7.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 → block OTSBitcoinBlock must exist at that height 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 0x3b72186b36166cab0ce4cc4d6d4bb78a779c47b437769db0c8e4fbcbfdb376f0. 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/QZGWW2051505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee1949b13e40c6fbdc73400cbdb30ee068bfa8254a3548c99341948bdf8c8517. 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/QZVK62200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x085488944bc166a886c5a505a53b6e0fdeb3bbc66d17037a5f6d3ca5238b36c7. 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/QZVK62200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe0d13daaa19804e1fe424fc62d17a79e572f586123512a7532b8340d891fd0. 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/QZVK62200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe685e93e8bf47dde3a6c08f1a4ef46659b37d72192a522b370811b84ede6da97. 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/QZVK62200007.
YOU KNOW, LIKE THOSE 1970s CIA EXPERIMENTS ON CIVILIANS
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f6b03c135b6346e090e2d1c5eabe1baffaad4ed4df6430d2eb4a89ad882536. 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/QZVK62200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd54f0ff97123e967c46962faba18daf6a070176938785c11d0286e22fb2329e2. 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/QZVK62200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43c263b3960d4e431e8d8485c614f33f67cdbe9eb84a4795701219e28b28a2be. 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/QZVK62200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ee976a412537db0f43f99d81ee379ad5db7d28a65271e77fb319033579c7e1. 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/QZVK62200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d092c24c6375d0a70c9547b96b6b375336ac67b45caf7e0bb6a35fbb9ea905f. 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/QZVK62200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca7c3b853a5394ba2046e7149f48952b1e6c9956383ef1711bce4a7cf4136bbe. 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/QZVK62200027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1966fff64a5e7d457b1c7c29b10db97d5ed4e6e85a42885dfdb0fcf9c7994bc5. 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/QZVK62200028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87806423df81e3259a3e67d5ddc49e97621273aca6ce5bd2a3cd8c932d4345a9. 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/QZVK62200029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6528fe8c9fb5d3ac53a330e9fa203c68a40ab846b25970973795f8a0c04418b. 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/QZVK62200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2454c580bf7db4afc932de27c70a7c90f48f684aa0d6bc141ddaa2f9131e1575. 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/QZVK62200035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9acda49cf8d90fc67d9a0bc2c0ceaaf39574cdc6db085c50359812fd7b6fcf3e. 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/QZVK62200036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6dfb4a7d7a990b31a47a49a7208e9416a07a24586ccdb58a768e427daf139ef. 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/QZVK62200038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x800435cd5790378ab0cc687c7a531c0dae77acaec14d21605ebccbbd25f165ef. 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/QZVK62200039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2498033f862b4f69f113585923153ccf2a42a586d9e601a0a0e8a4f1e8868984. 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/QZVK62200040.
Dark Curtains That Don't Block A Whole Lot Of Light
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x204971b176a442309ad361dd838b7a19442719b8754fdf6ee63ddaec7919b47a. 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/QZVK62200042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cadc5a7521166c9c90f1d3ae20b51042a91ed98959c6cd95a87f052588ddf0a. 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/QZVK62200043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ceb4dc6a09c1f11d7ecb1ad230bc976ef76d1b0330443c303f63201cce3517. 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/QZVK62200044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe1495f825e94c4b50043f4af5e1b0e50a93db3de5ba068ba3f90cf4756e52e6. 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/USLZJ2169095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd405d38f4071abb77879b5d462532ae86cdbdc52530be8eae1febf4eb9045071. 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/QZF8N1998701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff7f867987c0caae28ef81e112626a21dc75866dd9c42f2416dfed3c24ffd06b. 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/QZF8N1998702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x596ddd184bf514e36bbfd765a2e447a60004f37d20e337f01845e7c420e47467. 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/QZF8N1998706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a040417f49396ce9a641f909d550cdfc58330ea4c2be0e99f9232942886b2da. 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/QZF8N1998715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a3d5188bdb1500b4acfd84892f728badd78cbfaa93011e18a3394056f9d307c. 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/QZF8N1998710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2262dfad68bdc266acac35225ddc01eae85eed21d9dad3cff545f2a8d21f2d6d. 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/QZF8N1998714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x464f6261d9624840b715e3232ecdc392a90e4b0d6871226c78a662c518283236. 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/QZF8N1998717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea6c110b2e60ff4b43780bdf864ed48bb345fb0b04f525ef62ffe9966835a493. 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/QZF8N1998764.