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 0x6012c3d214a9acb2b3e6ce1db2bc8e46af48ede7fe0666379ea2adb55c891174. Chain 2 (Bitcoin): anchored in block 953670 (2026-06-14T18:07:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5895dd07-4ea5-4fa9-a830-0d6b01f8c007.json and https://artists.proofprofile.net/proofs/artist/5895dd07-4ea5-4fa9-a830-0d6b01f8c007.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 0x0c4d58be04117d72738f3c68f58edd6f847c7f3845a8da26ec4854a96becb1e9. 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/JPM591001141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4882adcff13581cc11450a3d0f7f2d2e4186cad7c3505877cdcc86b55c14197b. 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/JPM591001142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6bb082f5cf8692d3da93ebbc06722a74b7380f6381bffb90b73f92cd4a99485. 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/JPM591001144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65658b11950b2d52ea818151668c5558f48a9f6cc866e580e402a011fd2fb7b6. 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/JPM591001145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6d89c99a690654db697ca0dbd33f2b0ba901deb93f2e6441cce2280dfae3885. 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/JPM591001133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed51d0a04a5cac7fec487f111d96b2e382374cf7fc604105d5f0ccce80f9c00f. 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/JPM591001149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa07f4aabf0429bcca38db42623ab099b0e58f6a53cbd7c433acc341a66de895. 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/JPM591001150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9c97b75550e206d5e64663cb384495702add8d473a7ed8fb963b8f2d251a2d9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPM591001152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc157ac908e3b1df379dc25f492955ce1d890bc4301a456ae480fa8e80d73fa80. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPM591001153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7d935cf9dd7f63c2e62a6821bf316acf69505c0bfe475d80b6de4720d0c754. 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/TCJPL2021553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d0a0c02d139d10b6fbd31d68417798ca7b30e8d8c6b066eb5ee6ec5fa686a20. 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/JPS801837202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1560477d362123ca52fcf84b64d2ac3def10ca2da8c27fe626041b988f7bf0a. 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/JPS801837203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d8a9a5828a9bdce0041355b8d8284ee623bf5e8637810f3055bda66e9185896. 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/JPS801837204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd4ba792cde8c1cd62243c7e7c9a28dd94651e6cf2a83d1b9c9f8dfa6a4cf0f5. 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/JPS801837209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd36f54b4609950724b9b0b4ab2d5c659a281666301cb701939d076dd174b87f6. 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/JPS801837210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4720802d599284093033d56c4d5ed16fab78d44b5185afae073334b3ceff0cf. 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/JPS801837212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cdd284c20cbf03cd95ea8b071510a50dbb9e9a21aaf9d5ebef5be82936fec30. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/JPS801837207.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3881ab08a7676f5f1c848fd944ef8e3a520fbdaa8547bb42c1d3322f5f77b244. 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/TCJPD2542646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x952db7aed6fb4e7e661a8c1848908bdeb67c2a9635884df8d052a2b110c22809. 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/TCJPD2542654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ea5387c2d8cacaf057b76a8d0a37d36489c9345f5f4b88d1470188e485c8ce1. 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/JPS801955157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3130769359a7eb5e464faf2f8acfa71fb49d55453d2a694df2268ea0453a3fef. 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/JPS801955158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef216672880f4cd8d13be9fdd9594e73bff6c2522a1823253230f6349f35dd05. 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/JPS801955159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18a81da126acbc1082a1cc603917cfb28c6a9ea53e9f5a3a8f3db146d5ec4258. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPS801955160.
KINARI (feat. youheyhey, CK the Shake, Sakai & YNZ Bounce)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc2d5859fc2157d3dfb4cbdc01534437701035a24d4cf5c909a618129969e8ea. 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/TCJPD2563767.
TOPPA (feat. Yoshinuma, YNZ Bounce, KECHA & Sakai)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dc755955220b83c854c8e843583fa3236537e726fe9874501c407d848ebd283. 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/TCJPD2563771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7561c1753444defef35effdfe27f8e55304b8a47f8bebf430e6ae1da3d308d47. 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/TCJPD2563778.
Wheel (feat. KECHA, Sakai & okdacomputer)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8031726e6d436e10037fbeca093588ca6040089f7df1c5fb016106212dd9dcff. 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/TCJPD2563787.
Cliffhanger (feat. Yoshinuma, J'Da Skit & okdacomputer)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc3c12a66ad14ce54db40da93bc80aeb6cccec100654208e3b668e8d4a65f8db. 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/TCJPD2563792.
Standing (feat. Yoshinuma, JIVA Nel MONDO & CK the Shake)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa175f11528ca0c681a79f542d01bfa2d98b951c5d5ba3792a70f4efa217a5c. 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/TCJPD2563799.
Charged Up (feat. nuuuma, NF Zessho, KECHA, Sakai & tommgn)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34f1200755b73615af4cd67e69341d40c1faa8a52407da420d192a8e96217356. 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/TCJPD2563809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1af3017fe9266afb89322a1a93f59b724b03a2eddef7740f6062395b924776c. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/QZTAY2345421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38c99a4e5b5562f79cb99b93dbbed43640d879c78ee3a70359cfe02276ebe532. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZTAY2345423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbad27c1926769b638f20d792748cdcae8439afb51a5ea48364d0a1ccf764cef5. 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/QZHN72350437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14eb47f69681d31a491b0386b81814cf2b82111c132b4340d70fb9fe918d9331. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/QZHN72350438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16bf754c38a8503ec4cd7882f4853aec21ae2db4cc540f7cf2e12119c270f7fa. 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/TCJPS2229569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74d18ebd66c14a7c43eacf674e1a6a3f4c0b6554d06d49e8903b173778d1f3b7. 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/TCJPS2229578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b44fe5f99ea943635657b8adc251a7e7297e0fd00bbfd3ba75244859c35b2d. 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/TCJPO2164182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x273f3a4d5870afee846bc530f7ece952ec378f64de8357e4816989d8e92c4362. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/JPM591001274.
she said (feat. JIVA Nel MONDO & Calli Stephus)