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 0x62bc030360f4ac0b38a3f724aca8ec459a97c73cfa90329b41afccb764975b1f. 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/b4bfc960-9cb5-44ab-97f3-005c388a2206.json and https://artists.proofprofile.net/proofs/artist/b4bfc960-9cb5-44ab-97f3-005c388a2206.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 0x16443cadc24cfe890003582e3b08c287032b6c1b2f31f68f9d18f4fb42f5e546. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/JPZ920605340.
浪花乃ラガ男”G"（ナニワノラガダンジ）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe95a4383f23554f5857db23be71b80d1382bca3ebdc96592bf79cef8f7641065. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/JPVI00645570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a9814b89d5db58384ce267ec1f2f50bfd2b1b87b8726b9c0463a231b5a5235f. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/JPVI00608460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14dc634030f46d47b3ec5aa0e13f3da1f353d3ae98b1184a37f21a32264626e2. 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/JPVI00606670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe4aae79ea152e4d7caf2a234327873c74c5e3f678944fcf6fe583e9a5ba17f. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/JPY201405309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a034a5af3f120d70d1a5a0b22674fdf5195d4a3f5ae4c5f49dcf910a6647a4. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/JPZ921609093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bb918e7037a711793b8696711c5eab191ff27c58c18960a2c0b3eb862dc5667. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCJPJ1926416.
ほんまに言うてんの? 2020 (WE HATE CORONA Mar-D Remix)
HONMANIIUTENNO? 2020 (WE HATE CORONA Mar-D Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f71bc553280366e497ba77e096ac7a13cab7a8cac635325b527c060ee1074dd. 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/TCJPT2252617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a8d659ea8bcb8edac76901585bd45406288facc09de5810a7c1fa0f55ccc21. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:42:03Z), 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/TCJPC2417430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b4a6e70cd494ebff9112cb6d097cbf7b70c6674d35be37c3e02b9bfeceaad1c. 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/TCJPI2551392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91f6467b3e7ea4b272a855676f20842a5eb16ad93a9e454b6bcb3139f8cfc6d4. 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/JPPO01061090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b9707bbe8244a96343d686b2ba906cb03f908195c35ec94b7e4cba8d01ca567. 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/JPVI01410020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d0da50d83824c0330b9935d288ac0ce221429658f0ac82e47b8c7c6a6ac50f1. 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/JPPO01343327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb62a0ee4caaf21eef0ca15d5a7ac8c9974cbc5a0fd51eae2961509105a07d29e. 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/JPTF00406310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91f6467b3e7ea4b272a855676f20842a5eb16ad93a9e454b6bcb3139f8cfc6d4. 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/JPPO01061090.
THE BEST of CASINO891 vol.1 -Japanese reggae label-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3504fa55fa5dc317e8a82e60d42182c0cc5c3dc807c5f1ceb4c31f66e00bfea7. 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/JP92L2306340.
KINKYUJITAI 3 (feat. CHEHON, 775, HAN-KUN, MINMI, JUMBO MAATCH, MIKIDOZAN, APOLLO, EXPRESS, KIRA, KENTY GROSS, HISATOMI, BES, NATURAL WEAPON, RAY & SHINGO NISHINARI)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a779a917636d6099b88b455bc66bd129fb2da4c5bd36b5b4b11cb31b06a3989. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/TCJPU2354447.
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 0x79661bf82f36ee6b6e3906144cb7ec8fcdab3247f43ffeb3de39b538926ee687. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:44:50Z), 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/JPPO02003065.