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 0x154bd39804a6ec55e3e04957e3e654bf53dcd2bae8c4737d3c83ed04c1931307. 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/11c14385-b2f1-4711-b5a9-90b8476b6250.json and https://artists.proofprofile.net/proofs/artist/11c14385-b2f1-4711-b5a9-90b8476b6250.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 0x8c2a07aa8661ed7d42b176f36fef87639cfe7aabfe1a174ed9b230a335e27a73. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/JPZ922301320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cfa26d02d7f658edf882512cd902d50a457867689e7b251de8e13259f62ebb9. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/JPZ922301321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29aa4fd15bd2d263dc0ca64462001f0793c78760ea7c8625b4bb6385f24282c7. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/JPZ922301322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb87fc6635b2400d0bcf595fc3b0a72be05a52e6a02c0c5312806a093ad3dd7f. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/JPZ922302478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf344308d0dadd83de93b13a7259b2803c78b7edea0cbc6e78eb17d4ca0a50a90. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/JPZ922302479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x135f09ddeb6e3ccde46ec944d4d581150d845f06890b9c9ecd5d80793df9b6aa. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/JPZ922302480.
大生解 / ハッピー・エンド・ロール
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6569f9e425b6c10889aabd41704a609e04f1dcc290f20fc0ec6ef77d8cee0462. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/JPU902400172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x144029ef965ff70347e50b78129ddb3cf2da354166cc1d701966f5b5d045de2f. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T05:07:17Z), 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/JPU902400173.
狂信者のパレード - The Parade of Battlers -Instrumental-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1159780eb586dbe87ee87df526f5b1ecddcbbc491cbde48c1e20164d4f3e9a95. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:16:12Z), 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/JPU902400806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc740f0d2c3b49cccb55a33b8456a9094f0eb9af162bf09f81f34ea9435293eb1. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/JPU902400774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649f632dc99b8a7d7dee8cce79b93a1678db6f4489371372898be2a85211ea90. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/JPU902401271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x108cbcfc19e61427dccdf5868924c0de6e4e6b9adaf4dd2c6d886a3358a274f5. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/JPU902401272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb5e4f4846c18fe43eac01522842e858666fdf71cad75851f193f1aa5f7a71a8. 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/JPU902401273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ebb85416c79abe0fd411b4edb3c1c00d71716876596e18cae0ec228c8fd5ae1. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/JPU902403005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b2cc0616da342cc29a832b1456f89d5f936e64e32db618573578d569dfa580f. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/JPU902403044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c37bde95ed524d7e935eaef1d4d1a4f12e4f4cb129177cb0a1d3d9fc3cc64a. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/JPU902403045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x298022a4c6cafb84eba5f03ba123755560b818dd55ec5ceeb82bfbad9bb76fb9. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T10:04:13Z), 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/JPU902500767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1348c7f29b9cc854c7afd2195a6b4c4cbddbc93027afcbbd57f1368156101d94. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/JPU902500766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x298022a4c6cafb84eba5f03ba123755560b818dd55ec5ceeb82bfbad9bb76fb9. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:03:36Z), 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/JPU902500767.