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 0xd7bbb0bd3bc3a0d51a203b593e250fe67c964c38a1e605ba3d4a9e28210d502a. 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/57f81ed5-d3be-4571-afc1-b0db823d59a5.json and https://artists.proofprofile.net/proofs/artist/57f81ed5-d3be-4571-afc1-b0db823d59a5.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 0xe1dbdce0bc55c3b8a79f52c416cc47024d3b079b6a51a0132838d676039d2ee6. 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/QZNWW2466099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b36bdf00de604ee6a6b44f7394f6139298c7bfc86bb1e4099f98f49d47d9aec. 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/NOX8G2400204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9593510bec299158162c399a8103c7a5d71845c9980e3befdb7df85fa84738fb. 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/NOX8G2302016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a9c8d018ba668da31e5f91e372de3ddfb8a0de01e0a2de3cfc15f33e43810d. 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/USA2P2351179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c62c38926df2863b05d2ea2e98b340a2bca8692cdf29401f09466c7b670a847. 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/QZHNB2306518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe00009262e98915ebf5444e616693cc3f4fd657fc98d5e2f2657c0db4ec294b1. 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/QZTB22301775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x925f7fb380c29fe741505edc320d80f5b840d72f698c076f2825c6e4efdfc051. 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/TCAGO2299220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5527435d68e4f98970c5fac35aae7e1b07597ec9d762bda741d6d4fb09683b9c. 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/TCAGN2293831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2683129632e8c102c3db211c63ccf2d423272023a1b880dcecb4aee98ec1dfb9. 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/QZHN72207580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59f668ca9861ae9ad6768bcf8a60d278783a8589404115d451f4cc8786b424fe. 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/TCAGE2225008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea04bb6a549c2f725eacd4609be485718ec0f3195d48009d24ed4de3725a2dda. 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/TCAFP2186968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x090295c6907668147684f5d45afe550bfcc687fc4c05925bcc6b636ce2e17d1d. 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/QZTB22304523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b46dc6ba4ab66a2cd91e7c2f6e66a40ba50efcb31d9de1ea2dee3e49d41fa3. 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/TCAFD2003581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd39fce878d1534413c32a966d82798959a329cc4097bfd726baf3257d05fff. 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/TCAEY2029937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eece38e05b17e707618e48bc727bea87c749a1130ffba89c996e4b6770d0400. 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/QZTB32349153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ed3057951cca76ffb883e2293cb703305dc0e6d5fcdc029facbf7918395993. 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/TCAEL1901526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x832d8de77ad8f479b61da17158da861253340e12383d2a7cb31690d78df79bc7. 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/TCAEH1928681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a79101209ffa9eab77ba0729178436bf8d1ff8f2e11d85fb99f9889e33f6083. 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/TCAED1996808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86396327831f40b49921a8cf5919f3733828d3c5a3d4a2158cf158780d91d0ed. 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/TCAED1924029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f6ed03a7aff9092183343840ca87a139d1ca21a937c1737d01759f19835d4a1. 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/TCAEC1933433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf347ab721464ab257688a2221f71403cbe380ade21ceab5ba79e596bd59479bb. 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/TCAEK1983506.
Superfly 2018 (feat. J-Dawg & Lille Saus)