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 0xbd64d427d31d23ea328f31e31a6ef3912d5838f82d5a0763b773e058b9e63751. 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/eff72c84-86b0-464a-bf38-e56b1dbe7fd7.json and https://artists.proofprofile.net/proofs/artist/eff72c84-86b0-464a-bf38-e56b1dbe7fd7.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 0x4a128f4804eb30201ee5e881ca09ce698501153f962c7ee31f5df4dac220f69a. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZ4JJ1749526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec687b8344603fe22c4384e3a09ff8c13a7a4fa3157d8b8407b641dcfddc7bfa. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/QZBRF1871574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ca4110212c588b9b1539d882ac85a1c0dce3ad149ae256eb4283c1598e254b. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/QZFYX1986867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x794c0b31e58b4638dc3c9fd521d117db5c780e1495dcf5fb404b2c8630d142ef. 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/QZ93L1820751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75372469b1bf0cc8e2cfa6d9b1ddb88ee95aad8cbd12ce7790901facd06ef1a3. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/FR2X41915102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x132c845b08ff6d2e1f52323ec940ef8056a5dceb2aec91aeb8ac122ef255f33c. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/FR59R1985153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab5cdc7230feeafa77eb9e4093a79bae55731b4b5d8ef440bcadd1a62087b8ed. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/FR59R1950306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf68d19ece9bb915619065a32b2ba0ceda75643fc3073cfb9662a571831b7f705. 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/QZ93L1911780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54493f3d1eb3120218cc15a16df27e69892d33b4515da21746c1a1063bcc6cd4. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/GBKPL1897618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5caeb61e4422560593ef5e911417ccb1510457b35ad00ee2def244c333665716. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ZZOPM2003765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dcf1dd2b4b3d1e549374724e04b00839ef513826b974d492d76ca6eaa4db95f. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/ZZOPM2003766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7509d3254f00506c9a4e1494ea37827a89569c0c38185c28d36fd6778b8f656e. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/ZZOPM2230731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffefc8cfde49881fffdd0c6ae5a0bfbb693fe5693758f75a23c328b5b125da9f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ZZOPM2236120.
SWIMMING ON THE FIRST DATE (feat. Lance Skiiiwalker)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf057d90d984654d62431e00c322a15c93340cef19fb49e5c042d22cd41b27748. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/ZZOPM2241347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7509d3254f00506c9a4e1494ea37827a89569c0c38185c28d36fd6778b8f656e. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/ZZOPM2230731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60cad0650fa7b27916265f1cab4b23b0d8c9d281c39fd04e0292aa55052bd1b2. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ZZOPM2240200.
CORPORATIONS (feat. Maiya Blaney and UHMEER)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c7f869931386a091b1260c0e65ea9ffde4376e93cccb4cb140dc4e2c63f3e85. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/ZZOPM2241349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffefc8cfde49881fffdd0c6ae5a0bfbb693fe5693758f75a23c328b5b125da9f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ZZOPM2236120.
I LEFT THE WINDOW OPEN (feat. muva of Earth and Semiratruth)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4396721d8ee4bc87a4c1500bae9bc819f92514e9f939229e01754a01900d6d67. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), 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/ZZOPM2241351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5069b4a2a764db1f191c431d02975b7f94e56439d7704eebc8c08958f7757cec. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/ZZOPM2241352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1dcfccf64288cd1dbd7301dc5a114d161bcb5399939ecabf6e70e5a7bcd41b2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZPEW2421729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x150296c07579755a32e16a553522d1c73ae9791e1a9577a9f548d4ff3e8a0e18. 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/USA2B2405142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c02b990a18130e4f0acc916ea7f8d02d57a908543f74291146f52ea65a21354. 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/QZMWW2056699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc6950aca6d91424cd9f1846aac1fb06696a5be1e772e7248d0f4a0589b9ef1. 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/QZ85M2016720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59288605f6089c0a3567b337f6d2058befa3bd651e97ff32b739c5b0bc22a870. 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/QM24S1821383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10da9f0ba73c981f5c07fe84ac7c049991881bb18a74522060de8bec66f666a3. 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/QM24S1921164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x479e1d0c932ce68aaf1e4946bb07fa0b523ee92aa51fe31f39e65c121b7819e9. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/QM24S2200250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc6950aca6d91424cd9f1846aac1fb06696a5be1e772e7248d0f4a0589b9ef1. 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/QZ85M2016720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64a9e1928732818e40164df91669ae3a22143dc93041d394786b1da85efa1fe7. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/QZDA51857263.
Tales From The Telescope Chapter 2: Internal Shine
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ce093436695b046c42c42d9213827362f995f1885a568abaf5957cb9dc73ba. 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/QZPLR2189364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8bf68658f3ef5a2df9fe16bcb872d1007274424b468dd50026f3cd5839af48e. 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/GBDNH2100057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x202e12ad8cc878c5dbc9bc347a9289f2b80c7da8e60e2fe0bc9c1751f4e6aafa. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/TCACT1655124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0eef8c97b410d583653bea973e548fdac0357f89c923864dda35a12dfbdbfde. 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/FRU702000291.