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 0xb43ebabfb4e4056319db0e6981abca6f953b1749a194538692a473b599c85bcc. 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/8465d320-ffa7-4e9a-9b1f-e34ba7cda986.json and https://artists.proofprofile.net/proofs/artist/8465d320-ffa7-4e9a-9b1f-e34ba7cda986.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Itzikel - A Tale of Emunah, Courage and Wit
More Lessons Learned in Moscow - Harvey Returns to Russia
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 0x1a748bf0616549e483aa7a2ef8107b2f970ad8a4c9f43067e458c30c66714bb6. 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/USHM92553430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8f173cb2b0f53a2ad17823a18b7428b8f5e11d7834e790fad9af68475f52af1. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T19:02:30Z), 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/USCGJ2445867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa323cca467b95575b9898eae95c7124d307f842965343a05d55f4e13f086ec91. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USCGJ2445868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1e0813d267ac3188ead0d4fa68e1609f4e78e60f314db8229efbdfb1f6a3b4c. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/USCGJ2445869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf40ccf67372ce8d5d83e40976b939b9b05499dc72324e6a848e4c98d513d303e. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/USCGJ2445870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50261144080dccf02768b3ae6487ab8ee166d11b6592c3e20d07ae0c9e3a30aa. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USCGJ2445871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5667d43732a8c8e4f68b2d617777e5fe54ae5f0aa5d55afe46645c64ce7dadc. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:35:00Z), 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/USCGJ2445872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1df762b7207dc79553d331613d26ce86ed3abb7c66bf89557fda0b62a15baa7. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/USCGJ2445873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4408c657905654310efd2985af9f90399ebeacf4e6c96d45a6ddf01c6d658a7b. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USCGJ2445875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x424489eb4433875ce5b7551cbba8fb09a073aa6b44230c5eed1536dd7f0e7c2a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USCGJ2445877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f628ff496b286428de09481517c040d175c2b9eaf5bcc4c0c05d03643dd315c. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/USCGJ2445879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c99db600debf43be76061c8c626e99d0bdce6cc7d4bc80a8b9bda7645b6303a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USCGJ2445881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d87c1632e5ba3ad86dfeeb61562b5e4b2a470453dc8a29a55e8468448823e0. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USCGH2512974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1a5a27c3f7e1d5c084c7f5ebf7b247757bebcc8a5b889691a8ab162177a19c. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/USCGH2512975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1e62994ae104f69e8aa967f2acb9e1b298f5a40c73467f62f97a2a2d0dae0d0. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/USCGH2512976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x854b8e8188e1c1bfa297c3a7a9b57189df07440b6cd5822d7e2c99e0d84b50f1. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/USCGH2512977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x665b41490e7043d8cba3482c586c96dc63a233cdd0cd8d45c295d95205e9c397. 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/USCGH2512978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x548e2f88aa99e3cc07e6d20dd9fc3b95a0ccbe62522aa5a2fbc757869ad5a314. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/USCGH2512979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d85a276e531db04dbfeef7b01a4700e57784b5ad166bf90f8bab584ce714df9. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/USCGH2512980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1867a4e324ddab4ad7137b863890c31f66dcf84e21a7ec38b8c93d0a90f9bee7. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/USCGH2512981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b8571b639afa04a35cdd1b0374bd4786d557aaaf90f19bf23c63adf5b4b062. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USCGH2512982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e93c55aa49f8bd2cae6ae6cce8ee58a1e07e5dba57ba5a25516bf98d240115. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/USCGH2512983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57c5bcd9dee86546312ded417bcac063ea65b1dbf3a9918a5ae42d87bf62f6bc. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/USCGH2512984.