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 0x6f4e09d45a63b98c057c38f68c266fdf44e6e432e6482095f98cc606c825a9dd. 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/6076ba1b-d24e-4539-9fb2-11fcd994e68b.json and https://artists.proofprofile.net/proofs/artist/6076ba1b-d24e-4539-9fb2-11fcd994e68b.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 0x16c575ddd25f6bdeeb4a6cd8d239de273243ae85f575113727cdf378c7e1b639. 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/GBEWA2100200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x216d5437f37c39eec596c45baedffe4069fabe06b4de8ea0f69bd4b34b8d517d. 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/GBEWA2100202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda3ce48993dab805d7c43fcb84418d9fef2acc8737302e557a29098f92bf177c. 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/GBEWA2100205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe1cc36134db0b9378a4658d6d6fb7ed54c997add9d2f08afd177d3b1fba324. 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/US25X1800273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76f7dd8f112888f5dbbdc42cead418ab648a4005c4b318dc4cd47960f8f1d878. 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/US25X1800275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f681e9a802304a90e494496766ce0bad6cde0d0ffcf125f068794344abcdcf. 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/US25X1800279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff2cc050aecb1c7e73ca257a6c1a459ec5be9c2ad623338408948aeaf6711a02. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/US25X1091935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ff7360b182179a2487c5e8784a1b1440a0a8fa9925dc1ec38059a82cce1a05. 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/QMSDU1600310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7cb698e604862648c7e83799fb2cf02438e72fefeb599c8ca2ae83d42a3897f. 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/QMSDU1700020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c7df15e10b7b63d85cbbe032508d3a02c7d9bb38ca863cfb26bacf7842d1bb. 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/QMSDU1700021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62097292a84a0efacb056e44793a77583a413c69d4b9a06bcfa1b7547682f61e. 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/GBEWA2202500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b09150eed23362b9c7ea15afd74b38e978c0900877d7bae53165f6f93053d99. 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/GX6J62200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc64b200cfd5a51c9964a00ae7c2f7e853efbbd2689b21817ed24dd7b018588f2. 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/GX6J62200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0605765a997e3923857300d75772a8a44700dfb9f588619ce46829512a0973f3. 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/GBEWA2105480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d6fa1c12f8c9336314318031574a6f136ce3f71eeda6b1e981d90061b30e2a4. 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/GBEWA2100760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb702f74cfcf372742a8cf38a3e09655d2a64c7038e1b226c32290e1880cd3e4f. 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/GBEWA2100761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x141c48a9656b33c752d64a31028c66d09a552680115a7cd173a3d52593c83495. 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/GBEWA1910790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8345b3c3159d10280a6b7a08b9c37c0f06b5dfc00cb2961229af7c8d4b4da366. 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/GBEWA1910791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e448a63e2a5b8a05e7d9a50d767c11fd253050fbf277b8902741b2915996955. 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/GBEWA1905240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15cfe5c9a93ca75d2cf3789b545a0adebf728fa25f27cda0c1f2b7119758ed86. 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/GBEWA1910793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b9afe7dd7038d7faeb8487d2bef4992e535231666a05ccd8215f22fca156f08. 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/GBEWA1905241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b5dcd4e2ab782cde0b31506ba0b590927d347e70864124d4db070d62398b373. 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/USZ4V2000035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe63f2bef295f2ca6bcffd4bce2ebc368fc95179f95687327e8b8230583ae85e1. 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/USZ4V2000036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b5dcd4e2ab782cde0b31506ba0b590927d347e70864124d4db070d62398b373. 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/USZ4V2000035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe63f2bef295f2ca6bcffd4bce2ebc368fc95179f95687327e8b8230583ae85e1. 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/USZ4V2000036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b69b86e703262902ee1e210f7bc41a413e61383933a3f6c7312295c434e32e. 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/QMSDU1700335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21043b55f33a37c8ff3d29d16de94600ff0c5691418b48ab4ab403e378deaea2. 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/QMSDU1700334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd762b6ecb34ae36fc7825a81570672e276bff92e70f42ec27f49acf3ce6ae64. 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/QMSDU1700337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2570978d8394d6fc5485bd02b12674d721ac1dedf1d333e981d4e799de64eb0c. 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/GBEWA2201466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59288605f6089c0a3567b337f6d2058befa3bd651e97ff32b739c5b0bc22a870. 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/QM24S1821383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eb91c44cd4326dc325943051708913b210d9856570e240f8fd0f155b9eaf79d. 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/GBEWA2100335.