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 0x09c9fb44f74c58e2484dd8dbf31f7071ab348569cd973d0ced3fdf5b9870e807. 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/d791ed94-18eb-4e46-a32a-9789dc56b9fe.json and https://artists.proofprofile.net/proofs/artist/d791ed94-18eb-4e46-a32a-9789dc56b9fe.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 0x96835543cacbced397b119e5fdfd8da995ae32e79bc5d5f13b89661b6c930598. 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/JPV501700260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea92911d2f543495b25984ce5bbc1d9e4db1070ba931757ce0a9299bd671d40b. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:08:21Z), 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/JPV501700264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dba937264c7ee7556b70a2d07e44fde5d0619e7a2e5e0713393fb131a355214. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JPV501700266.
I Am (feat. IO, DONY JOINT, Gottz, Holly Q & KEIJU)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b8aecb110f7cb049f3df2e2fd5a18fc970cebd1636d822b94d12c4d1fb56853. 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/JPWP02202169.
PROGRESS (feat. Gottz, MUD, KEIJU & DONY JOINT)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d368c3a259ae013383dfcdd3ef2335be1f358270ba3bf1a62c3ed959b8e82a3. 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/JPWP02202170.
Soul Assassin (feat. BSC, MUD, DIAN & DONY JOINT)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13de0b5ae7fdab4bb7092b944893808bdc4f9df1b49bf49de5fd9921771867a8. 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/JPWP02202176.
Endroll (feat. IO, Ryohu, MASATO, DONY JOINT & BSC)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb50b97fff773c30f04d3db91815e2d3b85248bb245fa16a552141f34635818e6. 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/JPWP02202182.
Blue Verse (feat. Ryohu, BSC, DONY JOINT, IO & MASATO)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bb1ad07cac0ae2ad82e1dd37ca4530b6cf9dc3d99f1afcc2bbcbf30d4c5395f. 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/JPWP02202181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17492d788b6f9cb227a60073fc97c0f57b05f8dd35e200739d5c55aba2eac4f0. 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/JPWP02200080.
Lay Low (feat. IO, DONY JOINT & YOUNG JUJU)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee44fdef36ee301cf94d26b3d71616c8750365d19ae0c2b7d22ebf8dd270ed1. 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/JPH491516025.
Core (feat. Holly Q, KIKUMARU, Ryohu & DONY JOINT)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea8fdd22f07ac6f6087d6c40989742a3c0084c6f42737ebb024beac49224201. 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/JPWP01971064.
Cruisin' (feat. Ryohu, MASATO & DONY JOINT)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb64a2523adfa8890b93c47854c0c2c74c17cd82f26f57e68e3d34090c67dd78. 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/JPWP01971074.
Until The End Of Time (feat. DONY JOINT, Holly Q & IO )
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x162867f8977260613e7bbad3ac5c5f0acb2f7bb94885c529a5f48c5dff22cc73. 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/JPWP01971075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf42526958586d6421ba19cfd8cfd2d511bbe9e07b1fe1548b13173d119c5f9e1. 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/JPV501600759.
Sunday Drive (feat. Dony Joint, KEIJU, Neetz & MASATO)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11bebe68f510b39f19481204be5dd6068869d1ad54a92f34b2dc30a81b7a42b4. 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/JPWP02100164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c1995bbd0346607e95486174d72e083b004c3cabfc1ee9f7645c52e31d84739. 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/JPWP02271456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8db82611f3cc5b440801201c2674ea9c6498e0e5e0cee3935f78e02f9b85b3ae. 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/JPWP02000161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf4315039f14afbd269ad5d942e61c4b7c66f61b4de5743d505f4a60e949ed52. 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/TCJPI1830258.
Kapital (feat. BSC, KIKUMARU, DONY JOINT, DIAN & RYOHU)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e1bc9f9816176f6957fbbd954c3a175c289993a8a228d75c56bf596bc6d2291. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/TCJPI1953567.
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 0xcf3402010fd624b6c658919970a47c12cb7d4c230e936d36eb7f36e1c6ce2d6d. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/JPH491616047.
Wake Up Homie (feat. Young Juju, Gottz, Holly Quran & Dony Joint)
Soundtrack from 991 (2020 Edition / Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda51ca389095a2897202fa357b4b4d6abbc51f945c570367af2eb43eac844b70. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/TCJPL2026364.