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 0x3324518b58cfd79d2611f8cb660f362de1331565598e6e4ea1dbc42d7e615303. 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/8fc9ce5c-75df-4f74-80f1-d78898c866da.json and https://artists.proofprofile.net/proofs/artist/8fc9ce5c-75df-4f74-80f1-d78898c866da.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 0xbdac358ece6927f3e54e6217b46922d748b5967a7eab988ae054fefec478f110. Chain 2 (Bitcoin): anchored in block 957680 (2026-07-12T09:07:22Z), 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/TCABX1476448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2080ecca26f43b6680dacf31283fd5690da61a612bdae610474266072b90b4b. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/TCABX1476452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb70e4dc228a489f17571f43bb99301edc4024efd925e6d90268944bd81f8ce94. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCABX1476456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4468cfad6d521b3293cc31cdfb038700255071dd96078610abf91ec46837523. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/TCACZ1717213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x066efcae7396521c02ccf72de16527e83469f487464c494d4972a471ef31d767. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCACZ1717214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5af42114c3eee891fa9f034199fcdd455b9224b61af1337e5dc2221ef430b20f. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:08:10Z), 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/TCACZ1717218.
Still Country, Still King: A Tribute to George Jones
Still Country, Still King: a Tribute to George Jones
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa519c29460faed0b30509387bc3b30a3f9b7922f2cb08eabdb0a2e4a01a09317. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/QZDA51925064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x142a7651f2cd1108640763c1ebab21cfeed530902a5e9ee07bc5a74da78baece. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZES61981616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19760d7bd823bedce387e185c78868f2951a13d3eb50695ee55b1281df99de3. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZES91957361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x143e2b800e17deffa3fdcbdf3a55b1de9879fcb7462dd9208504d16914b0ca43. Chain 2 (Bitcoin): anchored in block 958676 (2026-07-19T05:43:13Z), 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/QZHN51970869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d0f7c6e001cd1e54d2e933e0b907c7ee2af29fd96a7573d25832da6e013736. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/TCAFS2171628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x094fe0e111ac811725353241e2975a6ad90698e8e51e55b57fdb423720d7f553. 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/TCAFS2170271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x164527a031300b3e9756139b74a84c5b3dea417e69a12d77c1367e473ce9b274. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCAFS2171654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82cbc1dbef9ae54939275806d1318a1e6693430554246e8c39aee5f369873a47. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/TCAFS2171679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dcd2ad26a308fb5e632e9c3a632213e119339a5baa302d310c572bc3df9ded1. 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/QZK6M2078577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9216767eed74266a80588e7e41a76d375901b8b3fd4f791339730787ad39189e. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZES72098848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a27334a8d95e4869a022215f2d8f6af70fd15f191045bf57d2160cc96efe254. 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/TCAHH2395084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04cd8fc9be6e10bf74c49ec28393a1fd8cc8b54400be45e5f995f83fcf63f3f1. 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/QZ48P1600003.