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 0xabd8a7341ab62664d66bc686da32d8eeed0493338c2be27c518c21a7960dc811. 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/c8cba247-d2aa-4b64-8065-302cac834af9.json and https://artists.proofprofile.net/proofs/artist/c8cba247-d2aa-4b64-8065-302cac834af9.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 0xe6bcd2cc5a13a99cae4b12a8767778d0ffe9cf5aac4a74c0c8d9ca900b28e74d. 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/QZTRX2239098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82ca40912f8902c7a3f01ca7bfdb81f30c6830b961113968c81a4d3f770d536c. 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/QZTRX2222621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1d1e3a8873b2452a6ea9c684d41945e0302eee003bd27e0b14e6375d9a92ce. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QZTRX2239129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d427ade4ea42e335e0e033dc6e2a78ca9b7af1d2eef639a058f761d0c099d6. 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/QZTRX2239100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x331dc5d810e64a25b291a85fc7eff87df56c9a7f6ea9301155407dbf11fe0ddd. 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/QZTRX2222623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3319bea2e9931945c6d9ff7104af405c009ccbefc58a60f9e9292a6df96f0b5e. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/QZTRX2222622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe606c372fbb2bdbdbfb5fd701257eaef5e2361a6bf5055e63e3b40d31274df71. 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/QZTRX2239091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x872a094f130389540e85e0d4c6897465dc07efb7aaca86d6eb72a734ea978d7b. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/USLZJ2484716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe606c372fbb2bdbdbfb5fd701257eaef5e2361a6bf5055e63e3b40d31274df71. 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/QZTRX2239091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e74b2310361496904f75b4689396ebfa8459fdf127c09aae7bab9d3409215e. 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/TCJPN2186475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7a71f21cfb8baab2594ab798658d47cde7eeeffef0d5ecb08288c5d0324d928. 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/TCJPN2186484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4df6cd815798a34f93aa81f7687b3859585d78a76d50046be0738e71e3bb4472. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TCJPN2186507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9092eafed21659c4cf30f0c985ec6d4377acf3cd0865a57774defaf9d7fbbf4a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TCJPN2186511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7005ad7b8acde28bb8d676131c895ad170cc766e56dcbfb9cb186dec31760b06. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/TCJPN2186516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x034022cc540b1d26b3006928d9a686541bb8d15b849c01519481f82bf41bbe8b. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/TCJPN2186520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e3a0868b6bc3d2fc88383e0946752d716e1ca4fe466a3adc3733c8f9a5e76a8. 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/TCJPI1951926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f9e950a5fb6f7f75cd440597341a1f093df51e7b8e9d23990699cf7679377f6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TCJPI1951928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ca202bfb1bfaa909989dece6ae31aff9bf63a159394381ab7455b460dc5e2d4. 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/TCJPI1951929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf360061e5a1f50dc19746d333c96bd8479abfe54e82e97f44523de421e89de27. 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/TCJPZ2447091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x194a1af3458da0aabd05b435153eebbd1c3844c010645791576c8213952f6a95. 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/TCJPZ2447107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37df7a8e0bf858c1047bde9c91ab1b0c2c3ecf073edc06139a284cbf11e8aa39. 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/QZZEB2321111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6243ec3bfc5a6917c32994d4d99829241d3b0c28553ae1a764d513b473b2226. 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/QZ5FN2283134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1bc47981ce46b8739a0189343a8268500f47a7ef055924c462cd4d7922253e9. 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/GBRKQ2261495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e465a1b15a3b6031c767c4b095b37ade9c5439c4c89e08995250502405df480. 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/GBRKQ2215977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15da8c3de78684905be3753cc7c7ace991d32f3f17038fae43a6a4b3dbecdd5. 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/GBRKQ2261497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e465a1b15a3b6031c767c4b095b37ade9c5439c4c89e08995250502405df480. 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/GBRKQ2215977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6243ec3bfc5a6917c32994d4d99829241d3b0c28553ae1a764d513b473b2226. 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/QZ5FN2283134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11af834eacdc41b93f464c5b41bcf597ab428aa0c3258236a96bce0e46dfc8f1. 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/GBRKQ2114145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16b08b81915c7e102dddfb5b82e1ee3712363cab2c485808633f6db8223f37af. 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/QZK6J2033045.
Trippin' Voyage (feat. Keiji Takeda & Kenji Azuma)
sakura sakura (feat. Yuko Opal, Sho Ishii, TommyBass & Kenji Azuma)