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 0xb65dfe4f1b1916bd1263d3ef4ad5fb06dd171bc26730c346f2a29c9b98146f90. 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/1b2ac1bc-40b7-459d-b939-fdf9f4e7c898.json and https://artists.proofprofile.net/proofs/artist/1b2ac1bc-40b7-459d-b939-fdf9f4e7c898.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 0x6b3ce7236426ce683b6a1740ecae733803f8bb1c8bd835cb2c34d5860e64c2cd. 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/QZHN92090915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa774fd8c27fc23d1dab2c1ae17748993a79b6e0fa313197667d554b9b9e2dd07. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZHNA2021257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d69e4b8514d2441f7fe043f8ac8441d6aae775efeb0f9e1bafc3fb4becc86c3. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:21:16Z), 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/QZHNA2090204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa73cea48fbeef72490c6d888ae62e006798a4061612a5d3dde157126e05c725d. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZHNA2090205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e282def29846684fae37c4d9e27f518af7c2f1ab52b9bd20b11df237c5bdf7. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZHNA2090207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33684ca0bbee741fb95560bdb4bdae0fb499e04ce067849f27f10e9501d1c4ce. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZHNA2090208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa0e2fe8f0499031bcf886ee7db0603d5ba1ef9ebf3eef412ce8385264acca2. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZHNA2090209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb599963e8c965e8c1a2794a3a223512bdc315a80ef597cdc311ac7a451c38b35. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZFZ42165090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409f1ca67c775675ecb4d90a636d5964eb8a628ee0715ade226fb6342fbd3d22. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZES62124297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9afcad80e3ba5798431a5815e7407941bc041948bc0789ffea11d218d8244f8. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QZK6K2183566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaf0a61257aa8e0bfe4ac6cbc7681a43e7db2e9044fc460a06a2e78d8f1a1d4a. 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/QZNWU2101539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c0106b175e87c81858de2446f18b6847e4bae76d25729b56d51538976def976. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/QZNWU2101541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55932730850ccf4ed15311616564d86085dadeceeca23a88896de3e884a9315c. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZNWU2101542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03204f076282181db23f907be51f61a339fcfd415b562b5a1ef8c6d7168055af. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZDA42203383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6e064873de2903f8d34d4ba125e0287750e57e62f0d1235b5593e83ebee3a83. 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/QZDA42203384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf3b25f69773dcad84d87a9f9538a9eb4f9164e56560fc4f171483e15b8b6777. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZHN42213882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x294c12152cef9e117cf441a241f3e503f29f897ea252a80e2c1bdd23b9ec39db. 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/QZK6Q2240450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x442983b357d0cdb353fc580e26de88a150b37629d07d76921801955194bd547f. 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/QZMEM2241668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e3e8c8d1a73865cc986f4079629a5f4d3de80b6410e98200c38e006e08bd92. 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/QZPLR2237547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda7a7e568e924c0bc2fb0aca413bde313aec5205d33ae8e607dfbb5f3118e25d. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZTB32245753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf563e5a03b3c6ebdacf606b4658742cd4256ae3193fc5e779ca14ea2694f6826. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/QZMEP2304520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb17586a617e334f0644a6ad0ade84a517af31bab9f3874edfbf213427a74cb0a. 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/GXD7V2309435.
Tengo Un Plan - TWENTY SIX Extended Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f1a78314aba8ac75d448439aa2eccbb2eff422dd6eb64ec32acb3d77abccc6. 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/GXD7V2308858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x840231371d08229dca859afbfdc2c1395ef2a4c71ee98750d31cfb1870c9eecd. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/GXD7V2306555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd86bc6895374b25508225a40e24fcc01f0ac4bef541affd2477335dc323da6fd. 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/NL8RL2459628.