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 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 0xbdf804e31868d8ba17b6604837481cf9d59d3759fda9ecf09a3169bc18629cc4. 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/ebc84291-3713-498e-b627-cb0146588d0c.json and https://artists.proofprofile.net/proofs/artist/ebc84291-3713-498e-b627-cb0146588d0c.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 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 0x1e97b30927b725db2ddbc08130cd266dc910ab6fdf2d9f3c9fd050fd04a5ffa4. 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/USUYG1367889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1f3517cffc083a1b05c1aead260d96d8c99c7f5779e0d77ad1306d27a18ec4d. 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/QZK6J2187394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb2f3889d24659ace65e1fe1d8ccf7e9a77f9353bd0eb240384487f4b87c557. 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/QZMEP2141697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3a829a2dcc1377ae3d2b312541a668b9fcaa4b7ff3b0c9639485db20dc20b3b. 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/QZK6J2187395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa565f28ec31662d57874db13080a789f8dfc169d3d617476f456eecaf79124ab. 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/USUYG1304610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6297dbbe852a19f3b7d47c3070689da4ce98eeb777924faa8e74ffab5b3f1deb. 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/USUYG1331367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7062b95e67d31586e2b42fb72e83d2d6010ce56850a6a090b77df724f6b7cf0d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USUYG1331369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45968b6c563f0525e8ef4b00f390858aa1f56a8257f02587357d5fb8d4917bf6. 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/USUYG1331370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b67d6e5a8a8ac58b2862f68c3e3b2426f227c62c3d8e588283f71c69949cdf5. 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/USUYG1331371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad0a6c26bc7590abe8457ceda89ca68be60028c03d87cbe7d6efba6e1f0433bd. 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/USUYG1321822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcce7d00f70c2ef44b7127b2f6d92c1e58e9f6091d7da2921d59e48d7a86bd68d. 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/USUYG1229818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59cc76f84ae1eb8bc89d118654e92501b341354a7aa7d3a125c26be1563ce31d. 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/USUYG1229835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f1cee4b54983ebbe9814a08cd7520b2381f927f861ce6748617dffbee8fedea. 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/USUYG1229843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x088172c0281652f5ba3207147e8ad0f5cf7f82663a4b28cf54100b8bdb3d2f78. 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/USUYG1196379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e10fd5744a3f12ba5cc853e83016d9dac181a4836f5e51938cf40653a5137dd. 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/USUYG1196380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb8857be22f93d660e952981930985080b7724af73ecad124ae9975d4e70c3af. 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/USUYG1196381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4f2e286008dc397511f3af632e14e2f6a8678cf565f9812547449299538e150. 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/USUYG1196384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23754af59a9f8e089ac2467cba0507ea5e3938e6a7dbe04afc03253799330f80. 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/USUYG1196373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee3ebc58220e2d0b45bf8b34ae774bd7e771c87fa5db1364bdbf9cc71d436448. 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/USUYG1196378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82ad832bbb05dc633907a8c2552936e4c690503f5f8cfbd2c43162623b90c5c6. 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/USUYG1196386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2d8d8ccb4059ebbecd6ac960923f45c8a807db92f5cc9de3bbcd5bafbcefe7a. 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/USUYG1196377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x685f5ffbdb3c0db3cf4a350c2610497871be9d308e6bd50c063a6c80e72fd989. 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/USUYG1196374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b0174bb72c9b1a7b0cf947cec5365bf962d066fe686f8b8d8a1658bcad62802. 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/USUYG1490615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce41553a269e8adddfed10a96ec7ed4a14c88552da665581e82ad2c7dfc0e19a. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QZTLA2351743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cd62accd686418454cdb8205cc424a18c00a426f0a84e6138e88227f449b429. 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/QZSYP2355121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x523c24d7135b7b4ceae9d0d9fad665581329406c474d4f23f83b547d92f34d8a. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:01:22Z), 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/QZSYP2221467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x220544b5f328b754fcf6ce93fd898c6d3933fc9f836166f3f8dc2dd7397fbe5a. 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/QZSYP2244042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72633d76823472e818060374d15e445611046436de2d3cf7c04dc3d6efc0ac86. 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/QZMER2202607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdefa0edb4bb4404de7e15fc2e53e97bccc1c849ade330b9c8f2eb9aedf839c33. 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/QZK6N2237667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5824a5b39786e3e7fe18658cdb2d55d11e31e738ef85330fa6d32f209ae953f. 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/QZHN32223154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x193077c47a65d1e5c77f515a3b7ac9ff61281b71b2fdc880b2645ba6880fe1dd. 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/QZDA82274905.
Late But I'm Here (feat. Flyboy Tarantino & Skott Summ3r2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e97b30927b725db2ddbc08130cd266dc910ab6fdf2d9f3c9fd050fd04a5ffa4. 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/USUYG1367889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf36fef97ef300f66b12e2a032e548fcab6d585a3df2f65df8e4cfb331866cd79. 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/USUYG1344919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad0a6c26bc7590abe8457ceda89ca68be60028c03d87cbe7d6efba6e1f0433bd. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USUYG1321822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ac53187d71c054141b73dae16c9a4ce677c8534f21d66dd8a1c86c295d26f5. 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/USUYG1319447.