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 0x0d1c56a5003793f0f4a482174db300e6459929ab88a20aea2a0bccbc16e3b069. 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/61506c90-c76a-4c14-b09e-bf911d294167.json and https://artists.proofprofile.net/proofs/artist/61506c90-c76a-4c14-b09e-bf911d294167.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 0xd4e572b4a1f36393795bacf2d31cd7e8107d205b9c134b87a0eb38d8113f87bf. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/PTES11109101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac62f504b38b07ec91a036da5c7aff755abd9c2836f34f202767494ec1039403. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/PTES11109103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb83a8e14555dbed0fe4a498c50d9af8fea7710f76c8d9a16e452fd3a21079320. 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/PTES11109107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19128c1578d3a6695513143481aa3dde3122ee4fd4b91b11ea54e3264c0ef4e6. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/PTES11109109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd592c10109a2b571d522915d7daaf2c39bb52f2ffdca9dcc2bed28b6316b18. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/PTES11109111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aeb194deebac491cc289d553fb1bb0e0f4e9377df935bd4f416d8854bfd2dd3. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T03:14:35Z), 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/PTES11109114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc628d7c816a02db507e1f74c152e95cfd607cb9427d076135dff54378b3120fe. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/PTES11109501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d792d47a0938819b35ecd09509c706a3547098314cd728efc0c0700af2e996. 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/PTES11109504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb4df30ab5358bd94589ff2008bbf28f8f78f94496aafd945a33d7267b6dc22. Chain 2 (Bitcoin): anchored in block 957647 (2026-07-12T03:57:41Z), 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/PTES11109518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ab5e7aa03d09b3c413ec7eafc25036c254bf7ee017627ed36b0413ef78a059. 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/PTES11108502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbac354d595f4818b50a805b5c8a8024a475f88f27063294828e9adfc72b26d7. 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/PTES11108503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf617a83bce03dd2c2def4e148609ff04ca7539adde7ad01ddc8ec1a536658f8. 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/PTES11108505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc25537fc2be0421ae9ad4fd3df86d9f94ad534b800f6656e5b47ad2c13d16369. 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/PTES11108506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd77ac96b1c64f5357b619263e054a17f35f2b2f66f2e843c2cf30ece09f7a516. 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/PTES11108507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1394e3437eaf08db3c4eebf94daa5a07738ff4ee3595a68250778e4c4b1e4fe1. Chain 2 (Bitcoin): anchored in block 957013 (2026-07-07T08:31:11Z), 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/PTES11108509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8297597c87508e08988b13232e7ce13056973379c3ce049c448250476e87b43c. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/PTES11108510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x863e6f70d109eb33e65d774f2555d1b09b6aa39689684fc15e8d47a990fcb14c. 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/PTES11108511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6889bc47b66a5cd7b534eb8866bc2041cc7ce8fd40e4fc10e0acc9728aa4d6f4. 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/PTES11108512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6568c5192d10658983c1500fa286103986f0641e86f0c176521c158ab3aef950. 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/PTES11108514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24787189e748dc925f0bcbdd5c2ba7311bce9575cf936ef2f1e3996e69a08f63. 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/PTES11108515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ed0ae6105427e121fb7d858cda5becd9c43472e99c02e6f104a27568dae1bf. 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/PTES11108517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0bdab13665e70987c17e6dfda448b77532857bb96595ec8ac9b214792d2f3a4. 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/PTES11108518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc935a9f926949df0fb8c8fe90366e3fb90d3b27f343d7a43ecf3f5e529dbfc91. 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/PTES11108520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0453ff66a298e07518c51bf995ed985b06f33684e91832e4a7b3522a1ce27b44. 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/PTES11108521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x657142ad3a9e85e5f569aab24f914cd78ce25f6f3a8ab66d5f132cf767ed1a96. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/PTES11109306.