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 0xbb823bc82bb91123f09bae1f64fb47abe3f45b3715a26a0d56caaa804bcd4457. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8e494e25-f6ee-4a03-a4e1-bf29408c93bb.json and https://artists.proofprofile.net/proofs/artist/8e494e25-f6ee-4a03-a4e1-bf29408c93bb.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 0x10bcba662a6ab1437519a283c746d91a7281ac9fa42087e953dd21b043dd085e. 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/GBD3V1502605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a72c2a6fbd5ec0bff7f3c153b8dce99e702ce4ddf01962fdfe4e025046e648. 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/GBFPN1435502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb30b4236fc659910d42ffe0522bf3d6f9a055fff650fd031b56bbea0543aed1f. 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/GB2GC1703002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb60d83d99933ab3e47d75b75291e39e3f93b64677658f5557ef99c0f05f73ecb. 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/GBD3V1402410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7648dec3d56df6d5de03639004dbb2728b69f258eda6b9a3f682988410b11054. 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/GBFFM2026984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x012f90fed89fd671997ae635d782fa433373703e3972b5428720b1c776720639. 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/GBD3V2005201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab9137d967889106e4f1322fdcde590c6b0343fd21b3497161f92118e4b641fb. 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/GBD3V2005202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd609db87ba2e832827746397cbb24bafd3b06d58e763059a788db99b0f004b37. 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/GBD3V1704104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb29790bda3d7e9d381a3acc41438b444416801c844a81cf3c8821983314fe36f. 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/GBFPN2365403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe16884fe657aba230f0696260c0dac4f7719d29051a6c3ca0899e0e93547fe4. 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/GBD3V2106003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc864d911a58a4b44f9df0f45ae82d357e97508ec33c997b7cd33a6a6174176c0. 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/GBD3V2106009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e98788e46d065b66162bf00f704a9f01a01e71e2caa7644505ad15dffb0d35a. 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/GBD3V2106011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3375c5189edfb2754e89bb18d21c18dd0d4d8c18f38738e5d71c99084b75cbfe. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QMREU2032001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x418e061b48ccf58e444961f0b66054c36c15eccd65b4939a0c4d476af29425af. 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/QMREU2032003.
Momentous Merriment - Libiamo ne'lieti calici
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19a0cf5edc830966727e3bb040fbacf6ce5b6388ae5f50548ce28bbe4682a74c. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/GBD3V2407101.
Majestic Night - Der Hölle Rache kocht in meinem Herzen
Rambunctious Adventures - Le nozze di Figaro: Ouverture
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610aa7982fbcde691bacc675fddc146a29589d4cdd52e148cb5361ed4a224598. 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/QMG492001221.