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 0x4036ec8b5fd861a6e3ffd6b4851472e644a9442adf17b6d394d9c898f9a502ad. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3b31eacc-f382-499a-93e3-dad043a622f3.json and https://artists.proofprofile.net/proofs/artist/3b31eacc-f382-499a-93e3-dad043a622f3.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 0x219e2dda3b6f90a99fd806bfcc5a503f59cd8c695a429b2b7d6e3f4c377fcba0. 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/ITB282300147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe277fdbff5c13f0b564c66dd5ab25a0ff9b2d040de364f02a4dea4fb4afecf05. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/GBEKZ0300174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55bd64d76d98a59179644d13bac458bbe900df6c569d5296019f2d42a8f31ae5. 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/ITC490500026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ba24b9eb53ce907b7a2d10f707293059b653c0da528c88fb2c419ace4d4178. 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/ITB281800017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5de0550d10e3564bd3a1d9d318f9c6f33573141efe2568245ab49e74b453cd07. 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/ITB281900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a068d9fc69c9c72c299650911a00b3b64e1bbb205a8230aef1394814cc6db1b. 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/ITB281500143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c12495d4e5674b360e36edb5b98a201547e6788446ddfc26aab4882fbd5c869. 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/ITB281100044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa17287c371364ff386f4a63fb50f3147675cd653af92c45a1beb80b37f1252e0. 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/GBEKZ0300171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4c05e8d34b3fc15eac555328fc4b821496d51fd0ab1d5f9fce1c6f6ff59477b. 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/ITB281200070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cca490acc5c06a3656375ea31d50be9f0f0cb98daacf2afa9c7228a74aab1c5. 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/ITB282100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc4232d1a30b3da4909ceb0b2e4bd743636e410732c78aaf5b728de257bf3413. 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/ITB280600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x648de4121b84b4b38b8d4988aecffc02d1c7dd1e21a4c810abb6618687d8340d. 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/ITB282000076.
Aumentando La Concentración Con Música Clásica
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4c05e8d34b3fc15eac555328fc4b821496d51fd0ab1d5f9fce1c6f6ff59477b. 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/ITB281200070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcff6466ead383a627daa0aee57c7bd2f1cbe31c6e1bb4f8b6cbb8bf439b97e70. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/ITB281200071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e846d4d0af279d5ce4c1aa11afb03f1576801e97cbaa4a257a1a526bca85156. 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/ITB282000094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4c05e8d34b3fc15eac555328fc4b821496d51fd0ab1d5f9fce1c6f6ff59477b. 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/ITB281200070.
Seven Days Walking / Day 1: Golden Butterflies
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564582b9582f1a532d5af40fbb2c20a4727317dbe4a1addd56c832dd8e525939. 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/ITB281800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91cc89dd9395d76aa9450a3c9318376896a997a0bffbc2c6e17b7d3a46f570e2. 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/ITB280900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe277fdbff5c13f0b564c66dd5ab25a0ff9b2d040de364f02a4dea4fb4afecf05. 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/GBEKZ0300174.
Main Theme - From “The Third Murder” / Remastered 2020
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa750c5f19b9e0d8a2ffb634936b24a347ac1244d85e9090d56a154c91e957fd. 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/ITB282000093.