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 0xa20d63957e570d48072ee8582728bd155d4f57cc6e222aebcb747310dfb8916b. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d4e4249f-e8aa-46ae-920e-462c4391e6e5.json and https://artists.proofprofile.net/proofs/artist/d4e4249f-e8aa-46ae-920e-462c4391e6e5.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 0x998f96548d7d320e3874787ae8805a13a4806a05139a7f189bd66719d8e465ce. 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/JPA809700650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fce0f5e11cad7a6aa7574a80896c9068d615ff5405270303735bcbe8bcde7c2. 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/JPFL09102590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb253d8f1f6e1357617f6cc04d94bd421e2c4e24c2e35e671559e4f633c906302. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPVI09824560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea83ef724b5a1f6642551f036e332e6f6cd03eaf3215db25f0dff7b62367bd0. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPB609620603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5127369feb44bb5960159470e6fa60bebc962c9b15195a601e8f4d9a8d3ad5. 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/JPTF09710001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2f84fce1132e5c8c6d1669c7e1dc23b7df2946810543cbf6d2353a62222766b. 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/JPSR09219060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7572faec47dcc8bc6ea059cec3dc85e826b96707699dd3183b72a32ec8170791. 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/JPKS09500215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6474f43d6d483a3097b8dfb66a4099054c4c242d1bfe93049e98efe93819dd60. 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/JPSR09905521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bafa634b538a61d37a84e3f85f438eea21c88401576bae8dffb7ccf263f20bc. 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/JPSR09911602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x018b736205f73d080f368c6c3dcff8cf75b802f7461eea6dc94199f9f87fae0c. 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/JPSR00004043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda725c0a7dbef3f85da427be36e24492def0d158a23f0242dff767b66d508991. 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/JPSR00100781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12091716f2f69685f0f593b28240e2aa5c497b7681ac5d6b8eb3d93cdb321005. 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/JPSR00102501.
生まれ変わってもアタシでいたい
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce3bbcf44dd96cd8d48a8c77597164b10ad586d6f3b84fef6a32131ac2830a13. 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/JPSR00203268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a1357fd758f7b646360f9985d443b39e33c96c0f2ae5aa928e0637e89b0c830. 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/JPSR00203269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc289fb919a6fe9a29787e3f1420a7cafb9c0fe9e2fbf2f891ee66d1ed5e91024. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/JPSR00302681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46537b5ea971809764c580c79201ec3787265f49adc8cfedb5904082811e0cae. 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/JPSR00106221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12091716f2f69685f0f593b28240e2aa5c497b7681ac5d6b8eb3d93cdb321005. 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/JPSR00102501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f680a7cbf0536234c3f548dfffc5aa240d59773f9ff5d5003e944d78c686a5. 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/JPSR00105582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6474f43d6d483a3097b8dfb66a4099054c4c242d1bfe93049e98efe93819dd60. 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/JPSR09905521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x018b736205f73d080f368c6c3dcff8cf75b802f7461eea6dc94199f9f87fae0c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/JPSR00004043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x339836e24be36df8b39f8af0e7449e2e41f044909e36e7b2f83470ac704b9ccf. 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/JPSR00004965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x174454ffee9300b29350d04602177ec77a4b5b8fa24b37d8d64e7b827e412f64. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/JPSR00005084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x018b736205f73d080f368c6c3dcff8cf75b802f7461eea6dc94199f9f87fae0c. 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/JPSR00004043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda725c0a7dbef3f85da427be36e24492def0d158a23f0242dff767b66d508991. 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/JPSR00100781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc289fb919a6fe9a29787e3f1420a7cafb9c0fe9e2fbf2f891ee66d1ed5e91024. 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/JPSR00302681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10e2d3677bdb276cd6e47ac00e88af5883f941e024d35259d3f3f07f908933df. 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/JPSR00302682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0fa0fc35c6c70f718984668293257bc85bf6c69ce581d0d6971c8777b148ebb. 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/JPSR00203270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x018b736205f73d080f368c6c3dcff8cf75b802f7461eea6dc94199f9f87fae0c. 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/JPSR00004043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12091716f2f69685f0f593b28240e2aa5c497b7681ac5d6b8eb3d93cdb321005. 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/JPSR00102501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6acf1265306273db093e015b0300a3cf167f493abaec52f051bdc19fdd3262ad. 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/JPSR00004044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bafa634b538a61d37a84e3f85f438eea21c88401576bae8dffb7ccf263f20bc. 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/JPSR09911602.