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 0x62403b8afd8dc61fd58f9625868be6e4ec7b663b7a2e8da30f7ccc521bea6865. 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/759b0053-572c-4326-ad23-5ba6bd7853d1.json and https://artists.proofprofile.net/proofs/artist/759b0053-572c-4326-ad23-5ba6bd7853d1.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 0xea8206216f139558f278089dd7f245a7c8205a3c5a5f550322adece706029895. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T03:00:48Z), 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/JPZ921806012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x909ce571d598980fba6e032cb594e56ddb9e23632fe70aa4d5f1db9e633b95f1. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/JPZ921910207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x357c789b289aa87a542c405243477b9b4d991ac78d20dae24d503276e6f00aa4. 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/TCJPP2155285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefad952d94634cdb308fb718ac1d6d72f82d49c2d5ca3c070026ad3b40657e63. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:10:10Z), 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/TCJPS2203498.
Beautiful MelodiBeautiful Melodies REMIXIESes REMIXIES
FIRST TAKE (feat. DJ YU-KI, Kazuo & Melody Chubak)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x096b9c8bf55887ce83a4df9f118fe2c83bbc2f2af693a2388cc84ed3e8e9ef1a. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/JPWP02300908.
可愛くてごめん (feat. かぴ & HoneyWorks) [iamSHUM REMIX]
Kawaikutegomen (feat. capi & HoneyWorks) [iamSHUM REMIX]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b191423b3391246662b03466e57f042e5ea7347d983de69e31362cc07ca2389. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/JPWP02401176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb01854755dab384bbb556189790fd8f19607602788bc43059f11a4ba4941343f. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/JPWP02401177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6d45ae697263418d80207a9e59d3efd44f69a8513e8da22f4834b5696974d52. 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/JPWP02401179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fbb3a01509903745b667fef2d95c6396c7f512be5471957c4f6fc1b2464ca98. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/JPWP02300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3d1f75cc2076f653f7c4b5075f9906221c8d69283c94bc9ed9d252c863400f9. 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/JPB602000935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa71106241efc8923617bc1853c1090a8bb9e40f5bc4b84b2ac96d68e65800b2. 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/JPB602000939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cd531c17a36575619ae365dac74c9a1e9b59b4ff64219b05f2739b64f79067a. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPB601900451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba7e51002a36b7623bf481ecdb06b83711fb1126cd3bae291af8f484a31ff857. 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/JPB601900453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f3e95f879bac9e27c8ff28df0d09f478101f6aee794d6d0ecca5c26638b4a7. 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/JPB601702573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7691d87238be77c4db8d57d798afd66bf336d5df2faa0470d92d4c98d4f8bcc. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/JPB601702731.
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