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 0x3bfa7a827e19122341f181e52b67d007f9431ac7633c66ba9c1c9cbb0f3a8b5c. 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/4fab40c8-9590-4f2d-b625-df69460fa6eb.json and https://artists.proofprofile.net/proofs/artist/4fab40c8-9590-4f2d-b625-df69460fa6eb.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 0xd26c646eae0303c913410cdd5b6cd0f8232ec2d2ca8f249cecd7cdbec5ac21a0. 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/SEYOK2100935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf6904e9b4451f283fb70f0a168cb92b96d676c40e3759647a5f324877606bc. 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/SEYOK2124738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c0740b926afd74178227a2c6be57f09b936d9280e2699d41b503708ad1d61af. 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/SEYOK2125998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbc5b1ef88c4a35936ba530c398de933c76dc9dc1cc78f755cf646b0416833c8. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/SEYOK2124718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf87e79c55b825397a0e261e631217e6bad75be7b0b8fe5a1b469fd662b158ef0. 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/SEYOK2124731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2927f4b4ac82a5033c90ff1c987276151bc6d9f7ad9bbe1f38dbeffa2b90ab2a. 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/SEYOK2124724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x152a2563cd0520d047f26b989027d56c5d74671cb5c565ca13c801d04c16f120. 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/SEYOK2124711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa92d34f9a8742e2ed34303859bf37b8fd005244c983b3cebdf0963d459d7e1c5. 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/SEYOK2127992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc117144326f3abee2916a9600658f6c3bff8d985332528119e993d1839cf5831. 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/SEYOK2124733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01b730305af86531bf6cc054362252e9a8f021f86510bc5dfd2c120aa1be9b6d. 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/SEYOK2124721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec2633c5a58fd1716c45b69b3f67af3db07a2f3ca55f0d6bd87e08e994b4b50a. 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/SEYOK2121147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb5d40a10895e0f0c9eaaf7bf402140611730ee50804bfd31172332756ea5769. 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/SEYOK2106529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa83c5bc897914b796b2ac12fbfcd7c76374f306c3761fd2849fbefbb79fb5900. 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/SEYOK2050659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x077e1b9b3dd810e6b66bf3307d07ad2a7e61ebdb0f1f362980a869a0da199763. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/SEYOK2124732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f20cabc1c5b7ef18f59e86269a74681a87dcd8819b305bf071f1241226c768. 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/SE62M2105665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x023f4a103fa023c29066fa28b4d5faab6af14f7eb21a2f0fa1e794557ab9a581. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/USHM22200713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0000effcba0fcfcd6c21a1b9c559d10a5b737269cf840aa3e0d2a76e7d5bfca2. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/SEYOK2107095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04be813f33cb13bc2997604d6fa0163490b5431f04b4cba9925d230e7f0c2d0c. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/SEYOK2107356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ddfc7a785aa123b2d28e0c486d5374a4c4810828fa301b801887dfb72bf2d7b. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/SENAA1802001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc02aca839c39b13b117cdb6fe6c586ec1ce56424369a837a32a24a40761f38e. 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/SEVQU1502001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be88fe968f6f9edb1754c1aea5e0e949eb910b2f6867e96f6cd8238f0c258b1. 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/SEVQU1502002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dabeb0ef1debc4a9161b646f9b1db3b6c051d59fe3ccd84dc128c93ddd6b614. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/SEVQU1502007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3bee08e6bdd3c13b7fb6171bfdf5b9b2bfd4989b0dc6942a52ea1aed67caf98. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/SEVQU1403901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e89b9933ec1e7895038d570b00b293c96c8c633ba357f5236aacc55cb6888af. 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/SE6HN2410845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28eec66b0c2b480a9de085be0b5b99c22d4514b448bf1cadb750f4dce363b62c. 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/SENAA1800701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6859f99fd9d18f18af2119413267f96cf3e9bc32fc2d5a2d0abb9722da7992b4. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/SEVQU1701401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8811916629e105dfa8b9ee97b21d7179b7a32effc32983da612b25dd3ca647ed. 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/SEVQU1505601.
Kvea (Kundevartettalbum) Mixtape, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff25c3f0606b63452105b2c85e2b618c4e556265c8b654c4ab5097701edf7a86. 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/SE6SA2487930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e89b9933ec1e7895038d570b00b293c96c8c633ba357f5236aacc55cb6888af. 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/SE6HN2410845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf35926d9a38ee289e46da7fe12570a5d79c318802f9be372c062dcb404989424. 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/SE5752420209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6034132751c4a052d69b148cb8f9c9aaea7cd3785b43730cf34be72390f549bf. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/SE6QE2449461.
Stockholm Vodou Orchestra & Aurelia Dey (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb39cc1889051d7926e281b9192d239628f01223cc8ce25fa6cc0a70c5f8a5d9d. 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/USL4R2498385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeb8ca9043e7024a00074349086e7f38e5444054a74934ff6005bc42514404bf. 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/USL4R2498386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf094bbb100e2fb64366e3268f08d1682a04b9ae2c0215906fd0550a8c2a2881. 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/USL4R2498391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07372de965dbdbc813b78297e22aeace03aac5ac22c356d3a0d9dbbcc887604d. 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/USL4R2498392.