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 0x335bcac6ccf533c578fadebd34019b863fbb6e08e1ffcb8c9fa5104eb61157a8. 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/6fffd5bc-152f-4836-8018-081cac80f9e6.json and https://artists.proofprofile.net/proofs/artist/6fffd5bc-152f-4836-8018-081cac80f9e6.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 0xc02f6915679aeee414b8a9d11c8a36a0363742f6b64b4cb2c7f22af17ad50cd0. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/QZZ662423675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb602c65a14dac7911925f0a2a4f3073eaa52150f3140b9b2f0d04c36d044fefb. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/QZW9L2354229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72a173e39fc6f4a6f6a657d7d70112321d70e980bbb1a1c7528ebee7fd518636. 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/QZYFZ2415923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e939ba2b1fbb21a5c84c3118d0e9b59df8188c610ec6095d30d4c4d89de50b. 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/QZYFZ2415927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4d52b6858b98da7ff7c2d0ded20cefb7fb6e6785cdab66be4e39f92187f2686. 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/QM7282412778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad4f85e4dd5a3041c2b07d799978ded10c9f58ec57a800f1f7ba7f6c651fa2a2. 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/QZYFZ2488821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35198fa82ce8c69d542eb3699f810314ce796018395e7744573d735354c1c075. 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/QZYFZ2466863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8ca33b2eb572839dd3f1e5e0c479f239d79390926f0df7eb0e3f933483d7e2d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZPLR2476018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f0027e35e9d17219d9984dd25c11e0f30259ca576353f40bb5c879b5e76a9db. 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/QZYFZ2418938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x174af489c32dc96a69d4b81d32d95b4142f93d43934f430c6da15a8f27154387. 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/QZYFZ2418937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6338971e7d16aaa846654adedb0e308be6e41d088df720dd683c1e1d9ee6edf6. 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/QZZ662459049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb871cd15e0ab0218eba4c455701f98a1e6aa0f48edf7c9e21dfe8c16962851b. 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/QZZ662459050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ab3dc3aac0dee6d0736a8cd37225ee31633dc00c8435b31adb503dab8af481. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZZ662459052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb871cd15e0ab0218eba4c455701f98a1e6aa0f48edf7c9e21dfe8c16962851b. 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/QZZ662459050.
Possessed Stena (feat. DMR Musiq, DrummeRTee924 & Dot Mega)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x340af391b67a783f4f43d2dd59196730f12755a5603f001bf92d560454aa875e. 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/US7VG2485156.
Abnormal Supersound (feat. Unlimited Soul)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x143e5656b7bbd9124ae8191df7d7e492ed6e8df7be02bdc5cfda5a42ac5937ed. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZTB42300370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9ee6a9a3d7043c3d3c75eb4edcd1072ebdab118c861e832c1d97bc928f4f117. 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/QZHNC2396766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7a427c691d6d3dc198880a67ea3d9ee129ad34d86aef8d99c472de9a5843c1a. 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/SE6QE2476628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2325e9ec548d6a5d377b759f5be1bb5b23d0b656d0e989c1642ea1bb0ad84954. 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/QZWDW2432734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a2b9f02c702f31cfac68582a51f22507c03b7457b8c709517f6d7e78e23cd6f. 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/QZWDW2432735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4826480ef8793b1508bd965d89b4555165565ee1af577663de4c3c19bc7e214d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZWDW2432737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a4e7671e6c0621b4a3606922eead52883d6d0b583056e371c8b496495d3436. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZWDW2432733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1bfd01dfda35151dc460fa4ce43f4fa5a7493c074b7e7c43d78a80ebdfe68bd. 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/QZWDW2456939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd99b51a63d352b3220c1284a3d9e3f88a390ae847abdbaef30ba0c80b7808fa9. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/AUMEV2497144.