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 0xedc3e14612af6038f455687d704d5f8dea0d5e69302427c51c966f73bb23de3d. 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/73fb4125-2e77-4133-b88f-a582d2542261.json and https://artists.proofprofile.net/proofs/artist/73fb4125-2e77-4133-b88f-a582d2542261.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 0x855fa1322066f9f2a64ad53c248accca3e461553227e7c2e86f9f92582523782. 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/USDHM0603843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca2b8fbdcb550d7a33cc21cb7f44997386669d30cd7c60e585c363ec130e8bf8. 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/USDHM0603851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd766a6909aa453a9fc71cd94615e77eb425344a0c306305d4bd0c544ef1c39f6. 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/USDHM0603852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc567d9ac5816773772898cd6838873cf52944cc2f7663e952e5324e9031a5bac. 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/USN5Q1200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1403909a5f1404d7fa1b1857d923dfbbd7dc0341095be9ba3d4ecbbff1df2b7. 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/USN5Q1200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d626dee5d82d0ae5439eb4161dd2866663bc4059d28ee141e4eca781a3e7a7. 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/USN5Q1200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6575c3092a4116f25737a75d31237080ce928fb30a576117321e00b7c03f4b3b. 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/USN5Q1200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b145bdf4c0976aba19115defdb462d77180fcdacf7401cb2aac9b174f1af86. 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/USN5Q1200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8162799219e98b8c6ac0bcc50d3385ba32fdb037e0f2e505accc7c4773447081. 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/USN5Q1200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2745aeaa6eec0d1380639f175808d1555d739e9d8111d24c1b0c20ad22ea15e4. 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/USN5Q1200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62bfb9aa11ef3a566607445d938051baba3a479336e47b408e9908b994203a86. 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/USN5Q1200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc3f913d203fc4f05fe5029683f68bdabedb93daf919920887f816acb25349df. 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/USN5Q1200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc6c8b9fa538e17db7502a38664a76b1290892246ec084e93d9caae1c179f2e. 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/USN5Q1200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dce18489e08efcf4f9c8a0f44b166edc2388eb87cead6f4f9e226f2513c87f8. 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/USN5Q1200011.
There Is Only One (Live) [feat. Misty Edwards]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a49715e352caca54c82fd52b191de25b3bc9203e7d80c18c9c5651609440b20. 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/USN5Q1200012.
Cicely Mary Barker's A Flower Fairy Alphabet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25714327f076e6c966694cbb75ba21b33a5ff417476b1b90d01f82b1d42d8ece. 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/USB440493803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d16058890c696d5032b43314fe7d9ea97f44d43327dd487b26001c4bd9ed63a. 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/US2Y30621835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e02e049092299b2c476a842f9261f923f850b4633ef3dbbb3056ebde4155bfd. 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/USB440493809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x944701eb78df6cbee59019994722fa936febec7273d9d49e356534e445087059. 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/USB440493810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f68dbb1b73277c727ae4d04c204f1380556105c07c86190b2047ceb7a30151d. 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/USB440493815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c3bad568236b11357cd8e2514fe668f75d69f32610011f307f72e2b90fa5fd. 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/USB440493816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x870124e427e1867c144d23088baeadf2c7a7f2c51caff8262d045acc4e500a69. 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/USB440493817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b772e8c57e24cc982e13e04802d17e6e7b2b9fdef046b90f93850d3e5514076. 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/USB440493819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ca38032c00aabbb5e2af08900d7a093087815594fff88aeba034ef40368446. 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/USB440493821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa53e4d878ebb0eac919fc3af48ed7d4ae3fbaa365b9dcb3eff9a55c8dfb12b05. 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/USB440493823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab7a78bde30fd665332d1751525e8ef21984acff539397438692234c965abb6. 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/USN5Q1100060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e879e8114c063d7450e6c734e456f65246165d05489180a82caae3202a8a46c. 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/USN5Q1100063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74d580e20ed40c61570cf221b000a8dee794adaf22d7b94d2e07da89e940db5a. 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/USN5Q1100065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0334eaa53f492b9a5aafeed9bb14f761d3aabd333a13645514e220f4a982bacd. 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/USN5Q1100066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76df17bb94b7c18ec57f86b4549d6ba76924ea644f2164dbd619465c05d3a417. 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/USN5Q1100068.
I Am Loved By God (feat. Night Watch Worship Team)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51b134a9ef4257c6399858cba4c04b5771a68ffc2a7bc241ae45b27c8de6f708. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/USN5Q1100070.
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