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 0xaa3a1759cfe7731793dfd487294af463e3c114b299c6424fa4d715fcafadea9e. 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/1387c8b4-612c-4592-bed5-9b12ff322abe.json and https://artists.proofprofile.net/proofs/artist/1387c8b4-612c-4592-bed5-9b12ff322abe.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 0x9995370d8e28ee3f406c43130ea418d11cb9c7c45ffa26d1d40bcb2e6f02a5bc. 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/QMFME2019165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc082a9faab18497a1c665d0510495b3fa6b36d725b88e4fd20297033bc0522. 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/QMFME2019167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x645f1f472157a0a01a6f74cc65f81d5d379f997e7bede53790c13f5ec4cd6727. 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/QMFME2019168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd25e58f34b7a99a366e5fa6f7cf05f3ba376cad0c78f450813cb48d926522dff. 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/QMFME2019169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd86060fe90be51bf90d11a6623caa4782fb858e9e264ddc7d7a22642ff03bb2b. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/QMFME2019164.
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 0x17fa0aafc1cc038910f4ed456c441a291470ef39872694faa2f994218a00dfe5. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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/QMFME2019171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb26e2f34e8f703f230e220c9b8006142ee62d72f1dc00aac75c804226926c7ac. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/QMFME2019172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e139951e0adde8ce95e389743e0ba58b4d84fa98b797fdb04322a881eb3351. 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/QMFME2018490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bd777e863af9a3c0ac99c5ff897c7ad15e1eb5ea5141f52a2cf417c86b7fb9c. 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/QMFME2018498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec941cc10b3a25ec35b315b5afcb3cd40333cd08dd3e1bf3a7a330f284cbaf0. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:47:20Z), 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/QMFME2018493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac3a4d9f84d36db7101d9763e830aa4c1718c56ab88d74d6d48e874b90b0a2c7. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/QMFME2018491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe941a9cf14dbb3c42e0ee0f706cb1987e6bbefc71859090e950cc6fae95446e1. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QMFME2018492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaabe2bd5a8317fb39a0aa2c540d2a43eae8c1aef3af39c74568461025fc2d257. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/QMFME2018494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd74dcaf0f5a1081f76c6bafdb6ae087f56f9b8b715661e7953da694a8a164fc0. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/QMFME2018495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed0219cb00467f80570977ba54a3eed6847ab86d21f603e9e8683ded8410304f. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QMFME2018496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcdbacb2af1ef7dfb88aced278d047223485e0a0aea172fe4143cf5f7e0af62f. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QMFME2018497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde133d83f4eed3878f23eb0bad4b040ef7e26e379fa2b8f5c29031771c1f8a7a. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/QMFME2018499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe2b41ddab75647e411224fe4ffbbdbe969d7d6978228ec6a65489527adbe186. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GB7HE1100313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc81b5a75372f5295e4e6a76be876a47b8fae073ba5e65633b33af5d42369bd97. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/GB7HE1100302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32850a34d89c61580a451dfc37490c25462b1ddaadd9ea387b678562adbf6f10. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/GB7HE1100301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x823b79705158a33a8ba4d10ff55d8a1819fb1aaf7d27a13b05bfc34fbceb117e. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/GB7HE1100303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc03a72c2ce881e1fa718f01b4ac2ac8bba7fc61d2ff02e8fbf4247bb4f30867. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/GBLQN0840003.
Ik Waari Aaja (Bandish Projekt "`Come Back" Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd45ea40fd4394c1db5e9619a9c57a8f210b05b8b641349e7dad0d6bd5b49bfd. 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/GBLQN0840012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x516b63a7b590e31295e52cc5aed9c702742420d4e7c65a02de617bad4b61b79d. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBLQN0840006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca09a797011232a00f03fac7b0c081baca29cdfeaef4f3ba1855d8d61fbf425. 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/GBLQN0540001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed163924324d9cbb8c5a0586b38248b8496477477a93a08479b29ec59f43ff88. 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/GBLQN0540002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6c41372cd3585248ebe46a79816e96d969fe1e91a85a5fde3b660a9772c42fa. 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/GBLQN0540004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaec18531d967041efd58147c5563c9be7c5bd964bbb76f063a23929e506a44a. 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/GBLQN0540005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0df22c23f6deca9c3aee6677def7aad55824c07c2ef48f0dda4e5c119df5dba8. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/GBLQN0540007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ee6ad2fcd77cc6f4bab6aa90d3002f4f8b567c44f3c8dc0b1ab49fbe890088. 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/GBLQN0540003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1041001b70e90cfa1ffe33b4694b6f6cea845cfaa2b19b49c1d43e81e63fe01. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/GBLQN0540006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e1147cde2c115e8142c3b3213a7ff4f7a7f3ec86c7bec892646e48206ef4649. 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/TCAJA2414832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1919bef9efe8d3c5c01c5e0f344248e3c1e50cb5fc2fde8078ead0f6347249ea. 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/QZNWR2269009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cca2635d1b0c956a86aa7dfd408e0e40343fac506f772daf35eb3635884d4d0. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/QZNWR2269010.