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 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 0x5e85f4afa2ff483c0c4d4066e72e426b202bd7a8d84aae68bf987ccb43ff7fc7. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d0df2be0-d8ca-4b40-836e-76863f40e122.json and https://artists.proofprofile.net/proofs/artist/d0df2be0-d8ca-4b40-836e-76863f40e122.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 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 0x46fb5dda8b6a0908b6421c3d9579dd8991bfa39620169b65d0ab5f815b1aa0f2. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/DEBE72000491.
Human After All - Guy Herman, Chris Sen Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7edb0d84840d27469cdb6ab6fe5a546ec16fdccb7f03115325be4835e4705ea2. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/US83Z2041767.
Collision (Chris Sen & Guy Herman Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4413bc84ed40a54145e96aef05631515cf90ee513baa50f3c47836186ab7bda6. 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/DEY472376377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd20a4ce6e033432049e2ff341292aa99694dffe9ed4115d76a948d312b7c2bad. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/DEUD42118395.
Future Progressive House Anthems, Vol. 13
Nothing But... Progressive Grooves, Vol. 07
Bar 25 Music Presents: Bordel Des Arts, Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983eb9871f0d08cc8b4a797be8af8e44adee3f69131af7ca0681bca8d8970ffd. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/DEHM81800503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a2da58f4a28f9edc8fbb134b265ab990a4f81f9c35c87135c5c40ed32989ba0. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/DEHM81800504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe80f9c20efa4d580257fbe01dedcedacab42ad6640ebf6d356d2cce3eb15ec73. 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/DEHM81800505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cb1c6ce0fd8d1a950a259659a8f189fc54e1c5c992ee28c24bb7d5bd20de67a. 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/DEHM81800506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc17a7f27ea23cfe820ac045cb6c701066fd0c6ad0017bbdad9eb97810c6952b3. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/DEHM81800497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a5686273331d3c02b4fba46fb74a6839c96c5824312d2b5bf50ae2008882d97. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/DEHM81800509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24c5bd091d9624a2e8c0d3da3496ab9cab36bcad624e1366d595268d39cc7d31. 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/DEHM81800514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46edb616df6137575bdf84b93fbc6e645a21e0fe5ddd43a7cd6c9823f0cf3656. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/DEHM81800515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c70f5393445f6c5935ecf1ca2fd1f23d77630c6ccaf5deb4a4df8990da3c4d5. 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/DEHM81800516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf358ad73c1c23fad2106e9f112f4590e12bb28d00b01c38ba8f6232f0b37189. 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/QMBZ92480266.
Drink All The Time - Weston @ Engine Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0770c9a7323494dd1800f3dd7385fa1e023ae33246ed9c93d2f3b9eddcd9af47. 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/QMBZ92480251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13a41ed77819c78324826486cbb38fcdabce38dff48ec00753197da0e68cdd45. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QMBZ92480253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ef1a090a2b28ee757daf6eb2a3ce58e5e66b4fd0afe7045bdb57812bbbede6. 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/QMBZ92480254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb69e3df991e250535ee51046e62b331453c062d1e4d078c993f1d6b4becccbb0. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/QMBZ92480255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e6c188cf539352b9752b4f3c967b25023d564d7a117f317d82ca750ada380f5. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/QMBZ92480256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb775fb05ba045c886fc0827cc71ac4ac124d634e5187af72c6006f90a155e2ca. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/QMBZ92480260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f5f6ad594a126b619e84e7416716b6714f391f2e1d4287e3b2ebef5dd0a4e5d. 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/QMBZ92480261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f79b3534b978fae582e470554bca5a249dbf3de8efcec70b1a528594c2d6540. 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/QMBZ92480263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fec7ea42c586968637d8f52df71b76977fc4af223756e856e28dd7393030c8e. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QMBZ92483073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc8e02a28ba520f332a2da2a6f736ad8043d36811c6a7904fa9287db7012c265. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ZAG8M1900277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a7a30001579dadaa897b37c4b41856062ad0a4cb7dd0b149876097f76c23d8e. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/ZAG8M1900278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb09623380d0bf1872e0c35df44027342cdebd1afc0642080676483c0893df13f. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/ZAG8M1900279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c2f556b40b3ef56fb24a46f2f5cb7ad3ec2ddc83eefc162bb17655c500dba6d. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/ZAG8M1900280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x346810edad1fac22b61d8a6dddd8313965583f909fb624f9a83f0ce449aaa3ac. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/ZAG8M1900286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x675de9d5eaa4bda005b83fffddd79dbfab84175be6d71758086ce8d2d5b120a3. 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/DEBE72100667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe632505a977b8676b0196fb8f0c1d4bd1803075149a8ea65951d2b6c7ec5de. 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/DEBE72100671.
O Superman - Remaster - Mixed - December 2020
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0059dc9ce0d510d0e6c0b1151ab6beab85fdb421be4bb0466eeca699704f431. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/DEBE72000530.