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 0x2f7ac4cc0b1dee43ae722b8f7f06356ba2487573a771afa006ee64c793f09458. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/72a40b80-8ed8-4c71-b318-865f7a1761e2.json and https://artists.proofprofile.net/proofs/artist/72a40b80-8ed8-4c71-b318-865f7a1761e2.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 0xfeeb3f60ce9a7f8eab5b230e18e12662a889935c200404a39a465ecadd3916b2. 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/DEAE62000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x602605e3a64330bc724c804b265fe3269061f376297f5a3a5f1a7e66d4d8cf16. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/DEAE62000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c99e3a35ae4da12ae10d991c1be6eea97f0957ebf78ed35650a7bd52f38ec17. 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/SE6QE2480949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1feb7ab1a9060ce8fbf07d4706086a33768668564f043cab46ae62f33a5e14a. 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/SE6QE2480952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73f4449125c757e4c5a79e8cacbef0703d1d4d22502450eea707f87fbc67e59b. 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/SE6QE2480955.
Ellen Allien Presents We Are Not Alone, Pt. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe495efa10f651726bb7c2e8bc5e1b9fe05f17c4d5bb75c7079a905ab319fcc. 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/DEAE62000061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x289ebafa139875d002b47e22151465fb8b5003e0c7a71a5239073e38672e3be9. 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/DEAE62000070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a12e1e882070a9a7be9c2fcd9701e1ef887f4ec121e24f2810ab527f53b07a. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/DEAE62000063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee90ac47bac82f2fc52481bc7837cafaf6234004e1fe0306b0e49a6cfc1c20ee. 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/FR9W12457145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad631fb5d35c8d685c7527ece42ca5f135d254591947a44bd22b94d7a90460a5. 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/DEAE61900040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15fc9396e4ff3034b565d6167ecba7271aa9ff3388aecdde968b3d268228d3eb. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/DEAE61900042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x978a6406db8bd2f6a9dc4f004750a1a8fc3c847c56e19d3f12f0645ef2ba71ae. 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/QZQGC2102320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6940b0ec37994860e42f16c7d713ec13cfd40c1429be43b0a1510aad5b62d252. 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/QZQGC2102321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7006d413e807b29c7b7dafe5c07a40206dc45d927267cab6ab4d993dcaf29c9d. 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/QZQGC2102323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda9dd9be54ec65eb80b65b3b9f142858321d660e0f64fb1aec25276ce892bbe3. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QZQGC2102322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7feae50beed8e3140b4f3c8266bc788e08e8a70eba04b2f8d503076dbbb55a88. 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/QM4TX2099403.