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 0x0ba3a21334cddb05abc8dc10d96b51ca5445ba7bb7868ad6681042b646c8696a. 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/68605626-79e6-4fd8-ac87-b004f2f8be8e.json and https://artists.proofprofile.net/proofs/artist/68605626-79e6-4fd8-ac87-b004f2f8be8e.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 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 0x28f390538ad20ad0023387453a3b764584ea88c2cf37c185c9c1b148f01a0798. 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/DEMA61907313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2872cb4b4e28bdeb7e8067262077f6e00234fde2f4e29836828953d1e9a26f5f. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/DEMA61907314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d46012dc39b09a062d44f5926f6825b79dd2b4ee7f910c00180b1b972458b6. 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/DEMA61906974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ebdc93fc65e0a9c1cd6fff32d2795d8298fb563be09f51efdbc543695481ed3. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/DEMA61906975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f3a3f1028586523be271bf166a0774cd1d3fee14e80f20b806bd031142c34cc. 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/DEMA61906866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15ca2c315273f0eadf4a1c8f157aa3bc22877e4bf5b60753265568cf827e2277. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/DEMA61906867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0e5d34510935a8a9877b9b039c8b301b648937783b3589fcaf7cd6e101ee520. 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/DEMA61906110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b45303f216e9d1465bb15bab1303c40375ce1c2db1017f201dd0098b1b92412. 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/DEMA61906111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8adb44f48adef1b437c4005e694b223bd3b1983239a032d5594e7d8058e5f4ba. 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/DEMA61903670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd6a31b343fdf69abe8775c40c904d82454c78323edef693667d57e2f289c4c. 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/DEMA61903671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b3f5db27da2011e6f356c58fa592b6d7a0baecf665f37903acd92f9472ff9c6. 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/DEMA61902630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2fa2b32dd7a1dab2663df1616c04cbf7fd6b5de4021336c470b155eb5d0a4a6. 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/DEMA61902631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9906a73d8951761ae149f2eb3bead33229e3ce3d15eb4809784b2202c59b120f. 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/DEMA61902210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed5c202301b8ddfbbd5e7cdf9e7c9b587b5c7957b2ac519cdc4cbe3271e3313. 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/DEMA61902211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2f55a5dbfa470030f7cd6ee370cb44dc730892ffe42a89a51c94916b0f37419. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/DEFA72011658.
All The Dreams I Share (The Vocal Album)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b7047a88370537de823cad5dbe7403819eebf53c0ee5643f9680c08e87888af. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/DEMA61904991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd984f5a4b2ac881712a4e0df3a19619b6c01fba692dc1ae6feff87c85717c671. 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/DEMA61906944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cae8cdaac9015c973812f38a13582b0a78cc2f74fe6f8bd054d6b3f65d681be. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/DEMA61906913.