thumb|The Roman goddess Juno, after whom the month is named June is the sixth month of the year in the Julian and Gregorian calendars—the latter the most widely used calendar in the world. Its length
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 0x902ef558edece2c63abe29fc9f9133b9f1fa69219a461253c744aac40e6dfbee. 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/0069b5b6-a86e-41e6-b2e7-ef4080e4cf3d.json and https://artists.proofprofile.net/proofs/artist/0069b5b6-a86e-41e6-b2e7-ef4080e4cf3d.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 0x3238adc93178bf50009047dafa4b9a667b2c98c75af75cc3358a71b56a74c293. 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/KRB471900730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa95a9b6ea0d03a87342f163726333cf1a86420f5fe1104d7465a23f519a77bde. 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/KRB471900731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75c34c362bc4993e54cd76930140b3a01f4502ab3ec2d7016b7113e0b18f944b. 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/KRB471900732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb14380f9732aee27248b8d9ad08bf43b70337c93f5636dbee60513a6ce2852d. 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/KRB471900733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x945ab205b461198d10ae0c93b24b1194ead4638120231d2bf698ebbe6e9d0d6f. 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/KRB471900734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ed905f92caa687fac6ac77408a7ea8f39e1df61c5bbca5b59b648b6f6b6c74. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/KRB471900735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94b2dd173f1e2d080256a1fa56f65e68343b1e197fc0b9ee6ec15d24dbf8267e. 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/KRB471900736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b74fa0c4d26383a9f18d2972e5645289aa6ab7b0709d214791f725639ef8b99. 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/KRB471900737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x270b5d68c6ee56744b6797e73ceeebf79660ea319d1b4f3e522facdc0184a589. 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/KRB471900738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe88107efb4f62455c3e76673ba55546d672afa0c4d7844941a8b6c228bf654d9. 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/KRB471900739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3582495f25c68594c311f35a364b2d2594bdb2df5bf51207d3773233f6fe6517. 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/KSA002303119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f5fa912a824b120b0f95b2011fcc4b861773231e1a5dadde07ebd1651251118. 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/KRNAR2341502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad99c3fa8e84f0114c5a4580234269e1b60e9ac154090e7cf8fd7db3fedb4f57. 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/KRA382207743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0cf2079eb73fed7d63f35b40c1b6a95e66c3717cc0e4f18a33e69bab598c48. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/KRA382207745.
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
The Law Cafe (Original Television Soundtrack), Pt.5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x230333899979d8ceb738fd6b0485f63e4a548a67f3ce8a0899dcbd2bb025807b. 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/KRMIM2276734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5103aab31220eb30cfedeac43df17104bef7c16c76da3180b678cfb45b18dfd6. 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/KRA382006649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8db2e4f9dbc58d80df498302f9c5e28a9708a253fcc679e55320cba31f247e2. 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/KRA382003201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3708a2cc0ef37e175873ff44c0d09e66ba6f8a3b5bd7f13dd98b2b602153913c. 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/KRA382003202.
Beautiful (Feat. Gaho, Moti, Jung Jin Woo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b78be2cbc18033c4ae9f837c88a73aae3dc1d708a6f1c3830173bd7cefa7eda. 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/KRA382003204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2333e7c0fcf3ad71508b5c9a670aaf06dba017196671e334ed5151dcab9adb12. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/KRA382003203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1bed4487d52b7d542d9ccf9d9349012dc63abd0ee3792e451ea98f0d09e7a0f. 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/KRB471801631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51bd21f7fd5043adade1dfb5be9ae654c5062666440e341ed2ca2f6e0f94e581. 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/KRB471801632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc13c9417b1a93bfb9422f8f2ac1ed55209a1e26565d2962bddcd81814b3139f7. 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/KRB471801633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0114a3a1b64a6064c38ac20978bb1552668d15bafdb05867a922092d7f2a8342. 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/KRB471800558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab4eecaf34b8753390b85dd9e1cf37ef28636dc93f2b152cbce7495ac95cd1c0. 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/KRB471800559.