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 0x18db0747ed8dfbdb99d8e17186eb5b7f148537aa5b8f6e9b454754d29e253607. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a76e86e0-23eb-487d-8b44-42576d0e5026.json and https://artists.proofprofile.net/proofs/artist/a76e86e0-23eb-487d-8b44-42576d0e5026.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 0x603471c4e4f390764e6e3577c5375318fb21e10892d45b6866d0c2cd7df9fd9c. 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/GBEYW1201101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda2489163e2bf7020c0999176f70e4e5c1a98dcab27ffb1eabdfad5ca9db5683. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBBTF2300171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d2267582412a128247f08acf0083d643ed94e3d2756e50660e4c3dd3f3c9751. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBBTF2300172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4b63295663b2af71281592cb9fe006d3778ee07c70246d6f8aed0be4eb46fb0. 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/GBBTF2300179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc95cd7119db35654b660fd2e4aadd4fdb1b879750bdaa0979a25661d4beec3af. 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/GBLDH2200033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a1e92ca8017300c6a1a25420beb359d2b708e820b4420c798bd22736d52f6a2. 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/GBLDH2200034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46c4a3f87a3fe5eaa537384e44c3523fbca9c9d9ee1c3d668c43d720b3249ba0. 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/GBLDH2200036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x795144fe92ef101b535f9c1d9e5e317fe49e8b6b87a9b5c59c1e0d534ae3d669. 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/GBLDH2200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79cfeaf8d67ce7698e03dfee46e34f516834cc9ca56c2aa178e2473fb31576ca. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:47:15Z), 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/GBLDH2200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16cac9a1c416e34def7630116bc5db2c15733bc7afe3c150c4fd4b0b88db0d90. 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/GBLDH2200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d884d812abd2ca69ef3323e71b50dcedabe77e462ba650f17f33e5f2aff0674. 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/GBLDH2200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x544d70cb5db40092c7ab72a905cc2dca6d2c00b81515a9568c51ca03b758f3a1. 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/GBLDH2200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x241f772307b67e785107ef9f2779a626a62368bbe1cb87e89ef24b42dc290243. 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/GBLDH2200023.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc224108178108c92111649fe72f1447938f6f8dc0b3623fdaaf6c0b67d051048. 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/GBLDH2200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd42fd1916e3bbfac0a7e03036678b5033551258f92aac680f0323629499a6a. 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/GBLDH2200025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c452be513493b31cb14c4e35e086c6c157e589802b50c26289ea7f2db3a7d70. 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/GBLDH2200026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd838876139dc451241856564fd5fef0b27bf9755099b9bc127151df4e1a53203. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GBLDH2200027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19a4f185ec44ae741aeaf5160d7c5831f775eff8ad5d9c2c6f75cf2e2848ad61. 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/GBLDH2200028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39dce44cbace5eee219af0e347a5a3e7a78a4c3031d550037ccfeaf9d6be45fe. 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/GBLDH2200029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x539b00a1e1a2c0df1f71d29b9fcbe00e50226c787ede111cc04f88db9d1a973e. 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/GBDLT0910025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa78e4325739f87934e498f503800f3438aca4de5e054139d35a348342ca0fd. 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/GBDLT0910027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad321ce53d340da8ce41841d82a646e8b1f62c5d1b08f215942a0d06a3f386b6. 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/GBDLT0910028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f1b72372e1b89b52bbc044a9047af01aa258ebf887c5b0eb6777be7dcd833a. 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/GBDLT0910029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf360298345e6fb90bb8301b3d31a25e82b7f6d318ef66b2690bc8289d38b9058. 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/GBDLT0910030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87780339e2449fedff8d13e877e3eb693df7496c71916457ea56f0c0301194c8. 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/GBDLT0910032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d2a59ae0164c55ebc26f1e51dd70ea56f0d2748c81194db65c98b46c1bc3880. 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/GBDLT0910010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2838393574fb28e038b2da45f9d271469e9b90c95eb8a79fd5819aa92767fb3. 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/GBDLT0810015.
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