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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1d7be0eb4ebce78199ec461e569bc53dc48a6e4fe4b0d59ade7ffa1b1d9058c. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/285d09e4-ee74-4bcc-83f5-79defdabec9f.json and https://artists.proofprofile.net/proofs/artist/285d09e4-ee74-4bcc-83f5-79defdabec9f.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f909aef985a195c7e8efff54d25f946a85ff7ebf631e3a6e438827f68db6a8a. 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/PLI292100245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x156c0866e9b70f27ea2f0a9323b9eb8c00552521f19256e7fac44ca8cd704332. 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/PLI292100246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0951ffdc0353dbf45142f6947109141c887bd7e67fb1398925726c866dc8da97. 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/PLI292000180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe400eed0d84ca52457f60a93c590d077c49d885732ea3efae9b1b7d1daf48ed8. 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/PLI292100247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5f0a36d487c2ab5ec21df4a06dc4f7db6f928cecf6ad6169c79c49b91beb77. 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/PLI292100248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71e2740c6cc2f264952d57721acd79fcbf59c72add5afa11e782be8f37ed7ad7. 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/PLI292100249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fded15d6714ad8f9c127d5add7eb7bff8190073d1bebd48a3b9d3dc9f9ac0f3. 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/PLI292100250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37f0e2115f05284e6ce57494bd374fe6456c4e4a02c6d2f319f9e088899e5769. 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/PLI292100251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2492afef043f544855a02820491be9b3476db01e8d322ead8c0d1e67063364e3. 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/PLI292100252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0259f430b7665c677afae83f25b76bd476e340eb7b223d2b07b15860bf32dda4. 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/PLI292100253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5700f6ccfd6c63cc2cca515bd2db1dcb626692c42028fec20f111a95e12c87. 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/PLI292100254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b1efdda353f552848c85eab6b2c2cd7cee53b9e98840f02bbf71f5c6ea2902c. 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/PLI292100205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x573d9281adc56983ff45b57b5d314bf6aa772d12dc7ca50ee637bcfb7fdc3f51. 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/PLI292100210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe42ca242bc7a0d7c43debc0730dd380e8a304c71e00c6facd8bc6decb8a7c96e. 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/PLI292100255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f909aef985a195c7e8efff54d25f946a85ff7ebf631e3a6e438827f68db6a8a. 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/PLI292100245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x156c0866e9b70f27ea2f0a9323b9eb8c00552521f19256e7fac44ca8cd704332. 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/PLI292100246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0951ffdc0353dbf45142f6947109141c887bd7e67fb1398925726c866dc8da97. 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/PLI292000180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5f0a36d487c2ab5ec21df4a06dc4f7db6f928cecf6ad6169c79c49b91beb77. 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/PLI292100248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71e2740c6cc2f264952d57721acd79fcbf59c72add5afa11e782be8f37ed7ad7. 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/PLI292100249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fded15d6714ad8f9c127d5add7eb7bff8190073d1bebd48a3b9d3dc9f9ac0f3. 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/PLI292100250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2492afef043f544855a02820491be9b3476db01e8d322ead8c0d1e67063364e3. 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/PLI292100252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0259f430b7665c677afae83f25b76bd476e340eb7b223d2b07b15860bf32dda4. 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/PLI292100253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5700f6ccfd6c63cc2cca515bd2db1dcb626692c42028fec20f111a95e12c87. 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/PLI292100254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x573d9281adc56983ff45b57b5d314bf6aa772d12dc7ca50ee637bcfb7fdc3f51. 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/PLI292100210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe42ca242bc7a0d7c43debc0730dd380e8a304c71e00c6facd8bc6decb8a7c96e. 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/PLI292100255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb3d952003dbac5d79ab22645fca110c28987dcc213927034bd8dd8f88cfc335. 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/PLI292100256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb69e01c3b786e4ef963fa2758e523bb1cea6c7a59693140c7425db946a317ac7. 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/PLI292100257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cad12f02cd44a9ce10f6873892a2a29961cb1254923410482faae9c405343b0. 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/PLI292100258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d0a9c1b6db2016e5a6c40c5284046da183a56ee820ccb26a88928103ad989d. 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/PLI292100259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e3718f306bd838e57187c6774a6b699c1ad3004f5f122709ac9df74b288b43. 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/PLUM72200178.