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 0x85df6e9283a58ec818266e007cf32c94d2d15d76df415417e96b2704036286fb. 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/35bd8e38-81b1-4743-9304-e79b8e93432d.json and https://artists.proofprofile.net/proofs/artist/35bd8e38-81b1-4743-9304-e79b8e93432d.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 0x53c5760ba805575c4c267d89c9f9829443abc294476d8c9619c87eeeedc4d5dc. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/UKGGD0600078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c865dd4f290a0cf261961360d4384ac1c9dcf9c9fd65931da86d1ab304e882. 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/GBKQU1944177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f24410a20a015048d6872636bd85e8f72c6f83ce1d5dc84db3c8d1162d352c6. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/UK74K1400470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98885c8faf84e5fd076451ef8f0a83282da5c8ed9e145a26a179c51e29c2a0f7. 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/ES7841926501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x717b853eb7f9c38b331d1c55ea6d739555163b25630e9c9006e9a08247fd167b. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/DEG932003577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e8f035bf5bad52a9be0420551f70de955ca0c0ac692a7ce7133d06b343b6ccc. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEG932003576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cb4818252d8d5dac3808b76d90f81d1e2cb9de4fc5e61fe6a28ddb6bfaa952d. 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/UKHKF1200096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd628d11f796a92f456ad2a6a779610212e31655d29d82c0d1093a0d5acad1f03. 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/GBKQU2113710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd628d11f796a92f456ad2a6a779610212e31655d29d82c0d1093a0d5acad1f03. 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/GBKQU2113710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf1fae01d9812f018d83493cda05397dde09d429ea5840216b034d658504caf. 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/GBKQU2147739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf68e8e9ac61433442a92d01182080c87cf3e0bd1b8694ec7d726e2678969286. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/GBKQU2147737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb082087d353d317bad652372df46442c3659c57677bf0a0d003fb3c0e94cf935. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/UKHKF1210092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa63e849d3f832d3541875781a20b09f80c2c115383b848dedb5ae8e37c36e5. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/GBKQU2304254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa06756af148030e665b17fc521c0161022e1dafdf9c6ec159ff31fedc79285e5. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/UKHKF1240316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd96ff47f1dbfae3e85f0daddc0ee21dbcebae3e4bee160ac00afa36b164c36c. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/UKHKF1240409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecac2bed3d5f6a3863ad95663737cc8277fec10df793cd1f9791d27dd08948ef. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/UK74K1400851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dd74885f6f51de49c99dc6b5dc43a21e32a8ded844b03782c817fe1bf78a843. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/UKHKF1250214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05dc40fa8792ebfd8fcbe8d059b38fdd9cd9f1d13ac535b43ca56b3c074bb6c1. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QMFME2532619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac87b2a3a3cc5f4b9964834aeb1e508b5070640de43358facffc81a52b11061. 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/GBUM72402487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x422698f4bdab9312a84bd224ccb6d4f6052fa5f04384e7706d5cd9e0b58a25a6. 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/GBUM72309370.
The Underground - Ronnie Spiteri Remix - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a1412f00b6c35c36bbcad7630097c96cc2695584e8c0de5e6d4063e0be8372. 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/GBHAD1700513.
The Empty Eye (feat. Liz Cass) - [Mixed]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff8e9932e3cad8178c381ec4664bddf87cbec04c4b7a08c8f3ed6c383587aab9. 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/GBHFW1900126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x737810cbefbdd5e0c49c2af14339a13234ca86b944abf3ee4067fba65a4ff5cd. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/GBHAD1700497.