1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x384a63a1f014b0bec764a390dcd6f0c34c1f4bafbb7bc09a6c52b4481096da27. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a7bddca2-cff2-4490-ba0e-7d12c90aba0c.json and https://artists.proofprofile.net/proofs/artist/a7bddca2-cff2-4490-ba0e-7d12c90aba0c.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 → block OTSBitcoinBlock must exist at that height 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 0x3d268f78332d67b092c303e83695fd05cae6c2451f26a8ab7aa37de37bf098ab. Chain 2 (Bitcoin): anchored in block 957827 (2026-07-13T08:59:54Z), 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/QZK6Q1919054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc63d7f41cf44be4b14681642eef02d17261cca2f4e16fb19a723309863eaf6. 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/QZK6N1937233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad72031fa2de0179d4c655c7ddebe706ee5b1064e6033c94d71f77077bf1ae0. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZFZ42092932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7e58932e63c9100981e221d343dd159f484821bcdb4a0a57f2be80f4e92d5b7. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZFZ42097446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe455be54cfc5ced80cb5b147f119863615157f02f66e27561cad0994b558e518. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/QZDA52095906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70436e2a84b5342e022078b18578ce26f121061570d638353cfb973677093e59. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZDA82034312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x788114795ef49b87bb3b0dd34337ef0fabfa57b835477bbc0b579f4ba267b1b8. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:28:52Z), 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/QZNWW2071404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a8245f58857e7e62763f4c20b0db28ad3c4d48fd398ecaefbe53c3c6ff5bdc. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZNWW2071405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0a41835d36b0fad5d62e6ac697aa559f425f546859937711ec3e2cce0d33487. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QZNWW2071407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb010723150d5db8993539ea93d742efb60e97c6908db2d54ba4aa76fc0f3243f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZPJ32174308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc512a28c413086bd7b14da7f8375885eaa8000fa9271abe3153002d7c7d838d. 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/QZMEQ2279918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0dfd692cac9859ed4fd4f0cb1a51bfa456457ccc38a4abecdc551772dd281c6. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/QZPJ32195251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7585e313c7053f5a2f6d0780d7613bf44277801456bebca8c1fd8f3c2d7b2017. 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/QZPJ32222183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x459b6b192812d2c2713e7a2b7b41ad73940c4e57ed36c084b2f74bc867020382. 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/QZTBA2263349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0729ed7016dee5baf997b2adc1e009bc6a2a14b407db9178c3086369483b93b. 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/QZTBB2229642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce2ef8f63e8b80997dfc1666efa0dea9b1669f20fb7298ac191aa0387f3f573. 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/QZDA62321859.
A Glimpse of the Abyss - alternative version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24fb5031de1805aa008db5cc90f76412c65828c0fa7bc2169f0691cb9f5b58b6. 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/QZDA72387411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf86e35dcb89098ae71fe126159cd0b617bdab569aed86c33551135d3edddbf40. 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/QZDA72387412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95207a774fa89f8d8802ad609b01f0ab785c1f490beff2c4890180f1a4d82e92. 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/QZDA72387413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d4d187df36b06d94f40b265db602e9b0c22380b692f6c5ca0a408b6ec81b00. 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/QZDA72387414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd2e9053f560c0258cad9da03ea4535e373717a71944ce987e930030885b634. 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/QZDA72387415.
Simple folds (remix contest winner's entry)
Simple folds - remix contest winner's entry
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c281a213b651253c9b729a16afb29d3ac3b36788938c0c85c6c7df7f7dbfad. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QZHN62302873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87cd76e1fb9a8d53d65ad0ec9b27bb9e15c50be61522701b28a0b90923d036b5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZK6Q2311463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe089e907cb5fd1caa8abfa4ce0f0a1b195a5b6ffc0fd7d8f4d6fb0b96efb58fc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZTAX2342262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x443a56310caa16a2cbde8d995062acb3f362c4d514185474d68651339c3f515f. 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/QZTAX2342263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f78d272c82704fecef8088609fbe75d7cc4208f1548ab437a450a043d336e0f. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZTB32343863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d08689468776d8bc92208e7edcb06bf37ab033dd93eaa3a4890789ff0c9f92e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZWFQ2306780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x881689f052b18e3f320d0c4e30471edda95198286e048cb2315aa23d0831201a. 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/QZWFQ2306781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc284f0e06e9703a4c96dbdb6e2767f3f1e089d7cbae8c8d31617b8f4b53a12fc. 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/QZHN32404708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fe74432bc94e8f68981b5eae3aba528b4f150bfa6103ecbeae4b2d51e2af15d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZHNB2434455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddcb60064f82404440e323a7227e2bac4778c752d575776b8b5cff1dc538741e. 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/QZHNB2434456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa47aa8038a2cba7372ee0bb4db19244bf33ad27b85cb6e5616843e29a21c3f8e. 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/QZK6N2412969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0730e33273b58cc8b62b167467c2fe7b19b3fd2497e3cf4c2a6212e5b528d5e1. 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/QZMER2484659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x586143692c07261577962b3b0ecad4a628b6414b677b9999a3529d9f529cb99b. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/QZWFK2470343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f2e73bb133923b6feb09ab7509c7ce05861631401b4329c2fb7087a3a9f902e. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:59:11Z), 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/QZTB82572186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0885f7f7ac82e46604dc55df5bab758834ae24823abb4d11df6e9e304f7597ac. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T22:01:55Z), 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/QZZ7N2526043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9eccb64ddccc3dea6b53befb34daf27ea607089d17a9d1b9c2e24dd6107cfb5. 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/QZWV32453415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83f958bf0302e6d0f8e32cf9d1ca61d698c04b6981b68becf1a2987165d20cca. 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/QZPJ32344116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x483d4aa8e9d0b1d62aa09377a81004c605e80d0bd109e5479a141d7ed610b789. 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/QZPJ32344117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62a946211756fe022428d29513642cf67d2143f29d0c596da009c098646de867. 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/QZPJ32332526.