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 0x0632164b84e47f4c09490c0a8868af46a4a26c111da8621b6cbfe2ca3576c3e7. 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/6e076c58-9870-4558-a28f-30197151e751.json and https://artists.proofprofile.net/proofs/artist/6e076c58-9870-4558-a28f-30197151e751.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lovin’s on Your Mind[s**t kingz × Shingo Sekiguchi feat. Michael Kaneko]
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 0x0b2038936902644903e530ca55d843d39124e792daa7052609f63f68f6cee5a7. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/JPC101800133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be12585917db9a73a5d884c2b962bed1455b726e65160423a428969e85478bb. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/JPC101800135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be257d4d4a07de1be23ac6a4d0a39d286e5e2a31aaee4228551dd1957a6dc3e. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:21:44Z), 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/JPC102000255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb1de5e364ebef5581e62008fbaf8d43b1baa769694f8f76fb9dd8f16647fbe1. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/JPC102200161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e4f474c9154d8752570cb1ecda3d4f1b4d13740f8494704e1f654fa3471f1d8. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/JPC102200068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce5aaf5bc89f672abc9a507bced2cf8408672f73e5b04a8006fec98257df31b4. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/JPC102200182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5755ccf336adfeaaa990b1575d467b707f1e78ae191a1b52b4a77905fe2731cb. 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/JPC102200184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x332c5c0de1b1b6aecd9ea70be82dde3dfb2418b4e54b7c6eae156cf3c1104c0d. 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/JPC102300102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22fef4a726ec3828fca52b9e6cfe21ea24dc001923113c492c25fbbf0bd15119. 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/JPC102100160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8522a93b7bcb9936f7cf7e6bb4760f1cf59bdf25759289df46ef65236a493bd. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T05:24:01Z), 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/JPC102300106.
MORECHAU feat. edhiii boi, Janet Mayuka(PERO PERO CANDY), JIMMY(PSYCHIC FEVER)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4296199c3d8234e30a04cbfe0fba4c463aff45c7858b82db4f7fb92accbc5d46. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:29:33Z), 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/JPC102400188.
MORECHAU feat. edhiii boi, Janet真夢叶(ぺろぺろきゃんでー), JIMMY(PSYCHIC FEVER)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6058db8d522d5ea7990f1418c81a8f35da1443eba056425af09ba2ad3ee41d. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/JPC102500019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ceb6ecaa10d3b5e0a1cd7962663c99a310bf63e3a7911e9ae1ee17bb0a8f9a. 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/JPC102500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc95306d8cc5aa88da5fea8cb3ea4744be1d209b208639f0bdbb86b3bef26ba99. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T05:51:05Z), 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/JPC102500016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b6f949ed8f2d92e09d55f238a5a63ca8e0125b16eb514af7720e18727c20ad9. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/JPC102500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0172471f67eb270e5a8199adb8412be94e4ae8fef1490b53c7878ff580c7007. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/JPC102500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6058db8d522d5ea7990f1418c81a8f35da1443eba056425af09ba2ad3ee41d. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T15:03:21Z), 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/JPC102500019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a4ecfe1326b97b71083d0c91eca4b7aa2d0f9225c46291ac7da42efc825ffa1. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/JPC102500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3e0c5ee2314e22a36a039be7622ee9d1d3a3e62a6208fe8ab7110ccb6fc34eb. 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/JPC102500129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe62aae5b11f7ba9847757bd53d748660da62ff560228e6ddd44cb8661f2ff4a5. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:35:06Z), 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/JPC102500158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c981d84d590f33ea07b5247222184fa21ef82baca6d8067d1b6851d90f8804a. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/JPC102500160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa04ad6f44c8440cae9f41d945b11425bbc754ccdf1ae7dad4f2e623af01187d1. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/JPC102500221.
Until Love Overflows feat. Daichi Miura, SKY-HI