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 0x6eec0c09f79c5fc7acaf8362ed0a104d4dfd46d8157d46e07f0a4456e9845c81. 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/82a2feff-98b6-49c9-8523-51f51bf27d8e.json and https://artists.proofprofile.net/proofs/artist/82a2feff-98b6-49c9-8523-51f51bf27d8e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Something Just Like This (Kirara Magic Remix)
Something Just Like This - Kirara Magic Remix
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 0xdc18799db3358a9d269fa9abcf38d516e2c765b6e625da54c49556bab4298bc7. 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/QZES72453068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d6e28ad5bfe8394c07a86c8d5b5e3b74f254b2ecd2aa1da990747bf2a24203d. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/QZNWZ2331904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac4129c20694d37059b7a772e9e530bdc9dbafae4dae0e5115516c11d8ea905. 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/QZHN32326177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c29fb4caa9f590cba910d74186802b4550a58a8d7600a7e8ea6dbb792e04f1. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/QZTAY2277978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x903d9023c64b441f7e2857a69df571ba804bbd4ca586cc1ccc0709fdb503365b. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/QZNWR2259960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad69e66115914986a7faf6131a937c07e8a553451e7fd45efd11413c2adf1885. 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/TCJPB2467546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da3b4f1df04cd8d407fd98491998cd93a4bc99b4493359a1144fefe733f23ed. 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/TCJPB2467557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0599eb7cb33b7d05201a3862a8fc5c2de9c2103a773b04512c8b9e145143e809. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/TCJPB2467572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x920ed9a5fab89ae01f3ef95f344a47f1983929796725d8f5eb425e88bfedb6a0. 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/TCJPB2467592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0706c7e5ba61455896296df95bfdea3ee8e67477bb6c68e8e1700df35d0e053. 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/TCAFM2100771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb74fc51b9946eb68ede27ffc575885e9685f88385a647bb80bda4b3f913d17f. 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/TCAFM2100782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78105bf3c8074711c9f2734b361c8f0dc39d5b18eb69c00f6543f9294d3a0825. 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/TCAFM2100786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x946bc589ade9b3efa51b7bdab79c9749f009c1aae10f9885a7602be15bbdc050. 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/TCAHP2363445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c63442cedbce2f382b191a56e594f43432a1316b8bb78bc205b50d66865575. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QZHN41925573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e44c9345a44041d67c80617fc45332f2300904c32747384183d57138bb9cad4. 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/QZHN41925574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9caaad1034a76abbc55c44d59567a7754628360d4574749938a2f1f899534d79. 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/QZHN41925575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cb9aaf8d334999bdd46da5806c70f36ffe26c257f2c68bfc9b33b2761cb69b3. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/QZHN41925576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70d332aa2b7fb98601705d237c184302f6d569b7bb682675bb562b7fe0b14c56. 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/QZHN41925577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce8ea9ca96ac17947d78003d9f41a0acd94b48937f8c33c983433daa5c49421. 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/QZHN41925578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfae828dd962964b6dba0beee10c158eb89881289d9e2249b5d65197b508d7cf. 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/QZHN41925579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2863d03c35a572aeffc3440d22da02cdd8df90e4b371402ff92c210325a42ddc. 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/QZHN41925580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2763788b347a71f45a74c28e1684b046218f1f97b8758c74d81f56f7328321. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/QZHN41925581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04acd19c4d4482b7ca37f7a581b96fd7c96bc2b307cb497fc6ecc75e0ee793d2. 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/QZFYZ2093110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f82c5c8134e9896731bc360ba0941261781165b53916649a2e7ed88327eac27. 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/TCAGU2347702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43e4e00e57386ce3cf8c16ab0cce5a5f407c9d73e0675133c18f7f457b731b2f. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QZES72277257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x027c65fd847bfa2b41d73c111bf0f4b07f1f3b7399a500478b683ec71aaf55d1. 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/TCAGG2257558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5cba630f235aaab6bfbe1cb0bd42fc60114da2392ca7c025a74bc5197e8abdc. 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/QZNWY2108949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb42e361c4f3a682bbf569c7b7c7191398b02b26e605c69091f3d6bb5d592721. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/TCJPM2072679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x904a5f33b92d38ee957d5b75593048e01cb11bcc9ac19f848c7148e1a5b4537e. 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/QZNWR2343074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f28f0af2827d3d6fb6d91cfb17ce087adc2adf2bd8977463224e456b5c1694c. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/QZNWR2343079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2551dbc2cb657599851ba0dab434b1ac616dbeb785822e743f69d044f5a19f0. 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/QZTAU2101803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be7468eb839f8d1bdeea8d7422c58e03538d855bf1929e7a9254b2d27bf58ed. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/QZS632359328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ee6f59152c62fa1c5e9ac2b9a9886fcc9c2695183692db73d284cea9e932cb9. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QM42K2392236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x670ac39c657047a9d4d67c73771b5f653649e7a7f366176982679b4213011c29. 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/GX38U2183905.