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 0x5a4364ed8c8a770cd9f2c0bb41cf66ebd09eca60ceeb3c6fcb80f8e20d467602. 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/730bfc3e-31e2-4fe7-8535-caf3450191ec.json and https://artists.proofprofile.net/proofs/artist/730bfc3e-31e2-4fe7-8535-caf3450191ec.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Let It Shine (Live) [feat. Matthew Langbecker]
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 0x6ae14b82eaf7c5d30b277abbfc788c18ea5d052289c5aefed3f82eb5a435e580. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/USHM82226790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6c0adc00235f7caa00ac6d92b02bc132e509b295b4aedb888455c9ede9b677. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZTB82289810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x893a0748e572e7bc0b4a122e01d199544a7423db872ccbeea9627eddf29e9b45. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/QZTB82289813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3da369f5887b2b87197b09f8e77f1aecb1ee7a26034e2d05b86d2e084eb4f46. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/QZPLR2312655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x107ef35daa69e4d44c7e50cbacab1709af72b529b5562e94f424d6eda6edb175. 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/QZWFQ2322028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3dc99b2deaabaa2c6db37b154e8bccafe8bcbe8db250e345e5425ee8981cad2. 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/QZWFQ2322029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0537a225322183befcf93af7d097a65aa19328cfe194af7a07c265b8dc70659. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/QZWFQ2322030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd21c75e26ce3d3f00ee1920ebf2218fa64fe13ef05532f58711f639093641033. 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/QZWFQ2322031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f514c42f0181a808aa346dda4bc924a81014ae81d7cae399925dbc234e30756. 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/QZWFQ2322032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70d711fc4600b7f8067d6096a87a21ef914aec031575db83db6ce79d6ffea684. Chain 2 (Bitcoin): anchored in block 958656 (2026-07-19T04:04:08Z), 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/QZHN42474599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6c9eb67ee60a8f7dd7506aa8167327a9e9fa3600e12ccf76ff1441f157721ca. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/QZTBF2423523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x439478459e15343392874cfba83c061c17f2433d67ad379000ef2d1226e57931. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZWFS2463620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91bd44cecb8d9e5525def7bfeedf1ad2463e16e8db98e2c321aa7b7c8372434a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZWFS2463622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x819715d2e83264b8c357100f4c623962590e35cd77932f731f53ebb3991c24c3. 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/QZWFS2463623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b98fe3e51fad04f8bc313299c67da248295e6d9128442627584761137c46ea8. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZWFS2463624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc3378554037aa10eba525a14915016b07868753ccc3a4c32aad6dc2d47ee8bf. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZWFS2463626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x070d5b0d3f1fc8cd48d11e8ecf5bad9cb03e162b40173ebf13b0a976ee78b88e. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/QZTAW2489778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7509bcecdee865488d10c35a607b0c3431301496c1ae6617c99e87e1627123b8. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZK6L2510733.