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 0x1c1091bb1c6e1ed232f9132b2ffb75d7b9e3667fbb54fe3b1dd818d05a86ad71. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ea483b18-2ea2-4dc4-9b7a-0442ffbb6c58.json and https://artists.proofprofile.net/proofs/artist/ea483b18-2ea2-4dc4-9b7a-0442ffbb6c58.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Reflections of Charles Brown (feat. Trummor Och Orgel)
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 0x54d7310d8763f7f4165875ed0cabba95df590864d941f6d26d9bce9c89adf8f0. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/SEVGT2100631.
The Way of the Crowd (feat. Trummor & Orgel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d3ea0d7b5ab268d2fbe6b56b4990657ad1912d698ecdd09080c5e7f88b86168. 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/SEVGT2100632.
In the Heat of the Morning (feat. Trummor & Orgel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4297a856a1481dae9e9946e178c38851b014c3645629339d5b7949bde12e64f. 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/SEVGT2100633.
Reflections of Charles Brown (feat. Trummor & Orgel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d7310d8763f7f4165875ed0cabba95df590864d941f6d26d9bce9c89adf8f0. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/SEVGT2100631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf129770ca6da4eba52ee172aed5e6f32659daf003d544d668b13b830a3c0c583. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/SE2TE2100101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x225c8538822af3892ff5f0ead6fc472b3e2c6e55bb4d3748901269141430d038. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/SE2TE2100102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d009bfb44875a54e485ed34945ca91559f5f057c59f1399b6f02ab79ebfcb5e. 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/SE2TE2100103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7cde2c082e1b0e9ae9e1ff7622a609206b9cd450cc039e88369ce0bd6b2b3d5. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/SE2TE2100104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841a4ec16aedc3db090d615dc5c3d62938011497003b47f0a400a11a16908aa8. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/SE2TE2100105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x346acbfd74b96b37f285463fba5e2b5a12f0249736800321ed9ad4a7155a3b4b. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/SE2TE2100106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77fdec718faaede5ec329b90bddea27c47616c81e6e0cdd0e2fa3bc6ddd155d3. 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/SE2TE2100107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059ff85e8fc37267a8e1758ecfe8ddc736763b9ee9afa01e8be4efe6edfa84b3. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/SE2TE2100108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef6adccb8189fc7a7096a1c7915cd85d6245a529cd036654618f3d07b5427ece. 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/SE2TE1700101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c8429b1e44019a06f0e95b06f4a3994e8b45f08fbc053d4a33685bf9df3669b. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/SE2TE1700104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad6040b4c7f128677542437a9e08efdca723f5d4167118e2597b92984d020bf3. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/SE2TE1700105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadcce3a8c8f03482583ac911ca21c4a0f2d5cc3caf5ca0f89c428c2e01098ef2. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/SE2TE1700106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41ac965160a67a33a487d7d34eb0c5431bd7da93b2a971ba01ad647f650f9143. 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/SE2TE1300101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad208f3e1cbf6eab3a153bc023579787bcde68be4869e72aa8b7ff124c71a7a. 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/SE2TE1300102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbce23a17534a37894f08bbef7a07ef09fadc277a28883589013a71179b6ac87c. 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/SE2TE1300105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4134691d251bfdf93c0eb13bce100c06faced0c6e1c38ab2c976601cc42f8c03. 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/SE2TE1100103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf735588419701472120f58b7dfd08c249ed1c3f9477b5fe3a48911f13504933c. 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/SE2TE1100109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ef76f9df1ea66389599f912e097875c66802d665b7ed0f9612f64de70397b7. 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/SEWTA0710301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e97d1911ad44c41590cfb7907f4145d3a5c642ef4ea6dd496494b9c8406b2b6. 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/SEWTA0710302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22011dc70048c039205c491fa76ce5397e5856a6560dad6da1e7d5cc44c4644a. 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/SEWTA0710303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98e71c38f1c3424789343709a80761cb83001f2c351318221527d515c1256d59. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/SEWTA0710304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7656d3de85248588d8e4fdbfbe439cbcd18e468cc97436d2ac63c3e2bd9751ef. 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/SEWTA0710305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbedc972758e940338169ccd57f593506c261b313a5a05bd0a086df8e0ec146e4. 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/SEWTA0710306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x195d33ae3a21a5c35051e092a8edb5643d424fc0c26c10a1aa65c2467b69af4e. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/SEWTA0710307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf60a645d430b6cdff0ab8f5375d9445dec39a0058a0626c4dae467a527ba5822. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/SEWTA0710308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd5bcf56d2531bfd2cb83e425cfd927384ea91c3dab865d6e7d4b64056304d5e. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/SEWTA0710309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e6e6925b2cef5c8f955335b1858fc7c24946410dce0fe4eb69b57a6721669f. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/SE2TE2400101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd376171037a62f7881694c1b85b7f0e31af41de6e6b91aac57f9c3efaa58b26a. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/SE2TE2400102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807c8cca8840382ac0d539f5083b0ab52c9d8fc0ecdff37ce134205f43cf1ed3. 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/SE2TE2400103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a6b86d8f422f2f44ce0966ce20d8c5d6f246ed192a70b255298a7ce35006887. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/SE2TE2400104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe34d7602453d432869f77013036a102303a1a2f6d8580657fe127253edeabc21. 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/SE2TE2400105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e6e6925b2cef5c8f955335b1858fc7c24946410dce0fe4eb69b57a6721669f. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/SE2TE2400101.
Somebody Stole My Thunder (feat. Magnus Carlson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe0d37730a7857124cd28735a2d6270b6e39a0ce67e9a66d39c7d4b98a4721c2. 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/SEWTA0801001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13a3e751d9b2dea0a3a138a652dbaf8db448e0660e9b8a98f65f6fe659d6538e. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/SEWTA0700301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77217d02cddf712c1c80746d643f80e6a83fc8c385f1edeb46e25d7497470519. 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/SEWTA0700302.