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 0xfd23ee88bd3a6b6e8c3224cba3c6334a7d9cc8f7e4ed9372a0a611f1b1c50d33. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/17919df2-1dc8-44f5-8d27-e14c7a83be59.json and https://artists.proofprofile.net/proofs/artist/17919df2-1dc8-44f5-8d27-e14c7a83be59.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 0x56f9d091c9948cf375b28c83ffc4d0f185fefd1de49faa4c03c4350de3bd8463. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:26:29Z), 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/JPMV09903110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc631f5b9ea3ef0a57ed6eec33126ed92434f40b88eb2e5dd62f9d1cf21e57a8f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JPMV09903140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4caf17781384f3f63e61b201e10278918800412d1024449fc93de624abe0539. 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/JPMV00204570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e0081cf64fe9bc9f55b8e4873260ac7ba9cf07fbe55c138d94fc8e3b84e1e83. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/JPMV00201390.
木蘭の涙／ト－キョ－・シティ・セレナ－デ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4487ac5a31ea5222e9be344e01468cad6fdc9be07f3e2f24256036ee51dc60d1. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/JPPO00423580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d0d6f6bcac65dcd3082a73ccea0aab27426dce3c34f3973d540abdba0183e0a. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/JPPO00753070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb42a36f8f607c51e0d68f31a6e2f739ad47e152b652fd9603fd3d51f27dfe4d0. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:35:08Z), 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/JPPO00753080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45b706d7b65d103c52981363b672552b96ee109c537d3c6739e685055d93e28. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/JPPO00753110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe58e8270d5666dc2370649bafa5e5e2e3717c68816ce47f6bf8e3421fabb263. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/JPPO00753130.
CORNERSTONES INTERNATIONAL MIX on the floor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38761a4acf6bb327665d1217fc1473898921fabb9ab194fe81315ea7f14380c3. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:07:58Z), 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/JPPO00871500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x468ba00ac2f33edecd836a49f53e9722fcddc0c9e1a916bcc9edaa777c32b0a6. 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/JPPO00871510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10fab7a21c74d9089d0083ed6f94af84b3e09632452777ad6ac76af7fb443a17. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/JPPO00423570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbe1b08c4d34526d4abc864513044bcd0d7ee891f3efc62c20a3bc03808f1987. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:30:05Z), 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/JPPO00886700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6acd4449521041212d008f7618e8faabe811393be94e7c83cb4fc0de8c8ee938. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/JPPO01903970.
Rockin' It Jazz Orchestra Live in 大阪～ Cornerstones 7～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadccf4486ef9e2743adc449cfd7e166e6885d020a1914799aa405b0b5a11af08. 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/JPPO02202965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fd6cefccdcb6c5da2da9a056f7b1e58aaf3958d5d685ee99b22e15fbb848ec2. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/JPPO02202963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadccf4486ef9e2743adc449cfd7e166e6885d020a1914799aa405b0b5a11af08. 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/JPPO02202965.
"Live With The Cornerstones 22’ ~It’s My JAOR~" Official Bootleg One Night Stand, City Pop, Tokyo Japan
潮騒 (THE WHISPERING SEA) - Live at LINE CUBE SHIBUYA / 2022
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x163d822f90d7215ff9a04e640f1a9842cbeae18b67d6739717771ad29e51f5d8. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/JPPO02303273.
The Best of Your Christmas Day I II III＆More
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7029801223707045730e3dd4520f642b7a3ebd7541fe80b415b729ee923b02ef. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/JPPO02503179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f2c1b876f29ba7187f74e19b1def23af1e5682a2fe72777d6ea28d5f878015. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/JPPO02503180.
Timeless 20th Century Japanese Popular Songs Collection (13 Tracks)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019ad46ebee7304ec9212a5d56f70d0924cf6a303d6c5bbf90bc8d7706ad285d. 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/JPN201300181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf1b263a061af01b8ac30ec989be98def2252433b559c4958e695454ee9ac73. 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/JPPI00000620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0c01bb938b14df0c2ea24b95e5e1d70a6512ce7f149a681cf32c8b6cdba6512. 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/JPES01000721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3df6cd11856d228cdad8647bdee4720a26263fbd0155eb85f5af79521d0d0c60. 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/JPES01000722.