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 0x61c6718640779f458b9806f86a02cc4a8143b9b51022fd1f4d028278e3b66b80. 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/19e27594-1bad-42d6-9b1b-b7fd54caa468.json and https://artists.proofprofile.net/proofs/artist/19e27594-1bad-42d6-9b1b-b7fd54caa468.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 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 0xbd83d955b0cf11d6c577aa56ac756f98f7fbc1eb539d47541dd4fad39a4d68d9. 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/JPD731500221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5024198a7e90b1a14ac86be2441ee4dff9b69422da8ae2bde97e73a266605756. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/JPB622400389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea728f6944b8b66174e8343a986024316503c5e06051ccf37302647dec23641. 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/JPB622400394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94a53ded20c8fdfd584f6b0de14e38873fa1d05798ddb8bb5d083c0ecc77357f. 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/JPB622202806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35d740b4d2c5f959fa27dd3493113d6ad922ea14db46b72d2e2265aa773b847a. 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/JPB622100250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c06ff6929e12246a43a952b2d71775482468850f431e32953862de51bb64066. 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/JPB621900195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe825b4e15881d95610ec73675e80676918a78997de4b8e97714853b1ea7ad2b4. 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/JPB621900196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc23604acdc5f829722f11005b49dca5bab26ccb20964ae26f486ae24e7de0a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPB621900197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x294a9f69769675189d0af50b7b0e59f985a9f277a1465394a99024d9ddf2e43a. 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/JPB621900202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2177f84ad39dc05b95c2cd119d55d8ac8c0a3d3c0c3decff25336c8bff10b05f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPB621900204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef160221264397a80c65b19a84de962af0fad6648040a23255dac1d101d355b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPB621700326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x225308e92ce95588f0f72dabe42d4837581e99f2b4adf7db8a45efdd9b89ae48. 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/JPB621500064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe213b4da7a84cbdd5be9f8736d748b8fca87febc080a1d86dbd7c165d1fd8290. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPV752002669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc07b2cad7794debdcc3b3901d65cbb880aa0e68b8d024518bcd6e6ccde06f4be. 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/JPV752002844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4083836b47f2e008d466bcecfb1ce0b13c36affb13448afde477a089022263c. 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/JPV752002904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37b4be9ccb59a3bf87b085a62ddd607e8ef0ff2c114394b7e400b8457dfdb651. 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/JPV752002906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf95df131f1d757768b5300fb60bc2041622fd7b6a02b9a49e7f1cfbc0c549893. 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/USANG2228414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fc57367a9a7ea04f14de6c76c6741a59a68ed78e9398c0aaa4ca2b611f395ab. 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/JPB622001611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec0b5510af9f0c9d522d553b153846c7ed32029e86508eb549c1edb363a571ef. 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/JPB622100411.
Playwright Library of Sounds vol.1 -solo works at home-
Far away from the noize (feat. Yusuke Shima & Osamu Fukuzawa)