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 0x44bc143ebde09aa879b6ca48af10409053c6086e471f3c5d4df04d455a0cbf18. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/22a85edb-4180-404f-90b4-d1364a48bb0e.json and https://artists.proofprofile.net/proofs/artist/22a85edb-4180-404f-90b4-d1364a48bb0e.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 0xe818235dc58312f37c9327d2042c97aa90ec0b30061377168619461951c8d288. 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/QZFZ22144926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1532bcfd56dba1c8464c7c1bd86ea46bd7c82058ed3c7d4c8752948e56c14702. 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/QZFZ22144927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b67f750581bded80208ad25bb6e056cd8ec44c8ce2d3fe0f946f415e065e8a4. 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/QZFZ22144928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x839473d97270be17d2a98721920937834213dd06c2ede66b445f7c561eff65fd. 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/QZFZ22180275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd27c102c0f0685cb1a8adde24ecd089e4255ed7fa1f00b2f75bad9b470ffc6e5. 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/QZFZ22180276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dff8fe9737a111517ce5b9f1a7bc4516e22d710d79ff170d1b0b55f8f2994c1. 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/QZFZ22180277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43842bfc6bed7f7465686244bc7724e1a3e4ee645e0e1292bdbe1952a202d5db. 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/QZFZ22144929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f9cd2fbcb24797872422ece4a6887ace26465648150524a34382224f67b5276. 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/QZFZ22144930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf8f870dd3f2f6dfa7e0046a18467c2ac42b5d23c57b07b1a0a037f63dc0db64. 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/QZFZ22144931.
Portal to the Void - She Past Away Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7e823760565844e010cf206670e87b1b2c1b6df313dff10809830bb2089a8e5. 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/QZFZ22144932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb38d88322585d05f48af05a99fcd12b247b347736fad76a480d119d52bd8799. 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/QZFZ22144933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf79f77935dc21273114d70b5a3151122f1e92daa54e25345241fb3d5fcee54b8. 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/QZFZ22144934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x386c9998cdc08dc0f02f83d85a32f32db1d8bbf67c65996a9aed6d2fb90f0311. 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/QM4TW2356846.
Artoffact Records Presents: Post-Punk 2021
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x318f5fb366efabea5b960a322522bc4492ca12828db7c7a0e8037978b762348f. 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/QMBZ92032387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d15517be83c2fb538aae3098ec86ecca10aa57bc78c3a491d96af1924e58811. 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/QM4TW2191890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb86a8af0d05afac37fcce19aadaf92641339ab10a432e7a77d442b440cbba952. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QM6P42343219.
Artoffact Records Presents: 2020 Sampler
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf768ecf3900f3ac60218bd58977a9dbd582b66fc28d8500a16052e56460a17cb. 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/QMFME1943169.
Artoffact Records Presents: 2021 Sampler
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x386c9998cdc08dc0f02f83d85a32f32db1d8bbf67c65996a9aed6d2fb90f0311. 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/QM4TW2356846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1030fba1e794fe81963aaa5b629e0fb039cbb3b848698f46e15fb7fb661c572. 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/QMDA72338370.
Artoffact Records Presents: Misogyny is Not a Music Genre
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70024cc57755bf74d9b3502094226f3115b974216b004207d960bf4b5a2ec430. 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/QMDA62449885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04cd9a6e092d85cf8a48d87d5df00cb2bf945086fd212ca1c880d1f488769255. 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/QMDA62451043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e509ee62c9551e01d315cbe64df55a13cf699329c0a1885833be32769078869. 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/QMDA62402158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cca71fac470a9ad689af3519e446dff3c0b3d4f14891adaf8490020bb625026. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), 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/QM6P42100566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf60d4fd28faf21bc728d437c28856a0e9c46ce9b58eca783d99ca0f02f0316a3. 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/QM6P42100573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4a0a81b2ddecaaf54cabfea2a9976896b7696ea797eff8089601e8515d7b141. 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/QM6P42100574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa3a1ba32ca335c0c53d81c951904e8d3ec1cc055f0bab12757df1e806bfea5f. 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/QM6MZ1913933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4819a5c43282e18f9217dc96b1232a4bec5e3e96f1d21d5131a07fc1b807bc4a. 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/QM6N21923066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbe66cba41b57ac0fff129cc404220c0a1055463ac65fc68e9759e21355199f4. 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/QM6N21923067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb317019175a0cae6f80172ce066bb2b3508dd3f575c3774ebb40623ad8df9f84. 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/QM6N21923068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8605099c806fc6ade8365e38e1ebd264649be5f08d76d7eebfb7028672e657b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QM6N21923070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c1055fd90fde7fa42e716e33be98ecdeb0e1913c857a9b5f0b029aedc6464f1. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QM6N21923071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dcd2b721d449435efcbf650cbe08fc0ab033c6ffa1fdf83240c1c08987eddd5. 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/QM6N21923073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e509ee62c9551e01d315cbe64df55a13cf699329c0a1885833be32769078869. 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/QMDA62402158.
The Eye That Follows Suit (TRAITRS Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4a0a81b2ddecaaf54cabfea2a9976896b7696ea797eff8089601e8515d7b141. 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/QM6P42100574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05bf8a174736ea6db08a25cacde7692d2a363128357288ceba557df16e977370. 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/QM7282051344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb82924162ca9eadf226d88b7baafbfe92370cb80209e4a35721e4b4d75d819. 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/USY281607535.