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 0x81f9859b6503b30a656c80d4fa8145fa4f08c3eee57905c45394976ed98de3b9. Chain 2 (Bitcoin): anchored in block 953605 (2026-06-14T07:39:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/130f0dbc-4e7e-45be-b0ed-a09118901121.json and https://artists.proofprofile.net/proofs/artist/130f0dbc-4e7e-45be-b0ed-a09118901121.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 0xe13f4ce24fc28752fa7e2f23b8fe60e718201f51930f1aa2ccccfb1a42fba29f. 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/JPTO07000700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb05bb816b51454ddc84a2bc0ffa446bc13bd4739b885c72476300930e2b2907f. 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/JPTO07000710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a43344778ea6e818c228d0b0884f8c9642aa3b4128cb329a7db68915fa2ec6. 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/JPTO07000720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x794b69e00685d40023c05043196f02271c2a350a496146343ddf5a62268a0b98. 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/JPTO07000790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2101accf81fbd4731d19450de28dccdca92b90163ed81bc348228fd906e68d08. 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/JPTO08915270.
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 0x75ef10c41fa1ce3484c93c63abf3a9a18945463bad9a9f1579d2ca9aff9549fd. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/JPTO07000740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd59e7237812e2f6c0852410e01398841f2f54fa10a6a36475e735c7ee02845e. 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/JPTO07000780.
ザ・ワイルド・ワンズ・リサイタル’69
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28952a26f50d47a13e72a8730da7231046cf3da00cb175bc3eacc8bf681161ce. 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/JPTO08729880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2063fac245a5bfd7966bb5876b76d265e1bcc963b19f64b6eac4eac401fc48b. 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/JPTO08729970.
ザ・ワイルド・ワンズ・リサイタル’68 [ Live At 東京サンケイホール / 1968 ]
ザ・ワイルド・ワンズ・アルバム第3集バラの恋人
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f022115df8ea0d18bb254720cffd736109fe235efd623a6fe93e3ef2e580858. 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/JPTO08729870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d3eb22969a0bddb7b884ee8cd8cb57b20ab2fa7e65cbcbc0ed8007e62ec56aa. 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/JPTO09117400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c3da4c7ef32368218de0b1d6a35b3cd9f0a5c8df16aab3ff52454b9239e767. 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/JPTO09439330.
ザ・ワイルド・ワンズ・アルバム第2集
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x126e68e6aca033e5896a474f7384bdc3efa6efc95ba4ec966fd0fe640e09b278. 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/JPTO08729850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea93277cad83841d8c5cd0ec3505e216d331f9883deabf5db9c2f6bf31e0963. 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/JPTO09133690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d6ba031080f5aa66c0f11ffb8c5737ce0a0e4c524467b2d4a7faf59b92d6799. 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/JPTO09133670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee480ccd9bda45adf3dfc6f28ba3c3450bb43a7f0f4f6414cbd23422e81acd85. 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/JPTO09439420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc8f930cefe134df14a39ac3e65fc8a54c43989d2b0b69787867e000e1f63ec3. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/JPTO09439450.
ザ・ワイルド・ワンズ・アルバム
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11f3d9fc53471fc035e5258aad648e5cba3b13f223af8feee4a3edecc7a921ed. 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/JPTO07611870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x635420dfa3406e4f765dfba9a3ff78aeab1894bba04e6179737d310dcc75c8dc. 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/JPTO09439370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8106247bf3adf60116908cc3e6a04970c5a4f3ae42b40d45e44bd68028fea75. 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/JPTO09133620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34fcf51c72b823196378c1b818801f34b31eea38aa94b0243e1d7ae3d5852c01. 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/JPTO09133640.