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 0x063fb3705698547dc694dfef3966729571498036d234affe526fca6dcb0d1d77. 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/0c237e41-1364-47db-9a88-998f04acdf20.json and https://artists.proofprofile.net/proofs/artist/0c237e41-1364-47db-9a88-998f04acdf20.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 0xa5b09b9c398db66af9eded792cac241071b4d9c44d48edebdbb582044ac8040b. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/PTEN11400092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85700583fd9c4dc32e859c550c8b6058ee4e85e5daa647d192e1db186c95f836. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/PTEN11600023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb385dfd887366b0c633a3e4961cf09e6ac506bc0f0377527d65d190591f00e. 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/PTEN11600024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x142c7a12a4be31840dd4eb5bc8ab181084cc981a9a216e7dfd9d0c294c4e6d35. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/ES71G2014229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc436e18f7448c4a33345f261948858cffd66c30350b16c3d728608839f28495. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/QZTV32318508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd099311fe92af001553b3fe888f01ba3b829415dcc284a62afa667a385e42f56. 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/QZTV32318751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe579d391f905b2ee64e65443af0c3c242b4e144c050b08d99b01a469c1fc9b40. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/PTEN11800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x691fec37e4eaf5c7502c3a569cfd5c6251b112d784ac21c66b312116ad9451bf. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T21:10:13Z), 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/PTEN11900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6182faa84687a14f3d23a225c3969a86c6bb3268a2f8e710c9d9f5b67756714. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/ES71G2009900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ce6a01f9dbcffa4fa55a145e7fb186b548877f4933bd351f73d3dddeaa4e3a9. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ES71G2014588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x592141ba062feb3a3c8042feadf8de5a01382bbf4d4a725999034efa876255e7. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/ES71G2014591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9298393f774d9922ef732bcdbc45a311fa5df521c0e92968caa304c4affd6360. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/ES71G2034384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08fb8e352aef767d9463a96657460cb7f19452922de8960c904e9690aaa8048e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ES71G2057463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e31a991d46aa14144735325fd34e43d2db0c6c2018302af53b84012ea61fd5. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/ES71G2122670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa799d8588e73fed2ed76399c58a098e3137e825bff2245eb488ea45ec348fa2f. 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/ES71G2209730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e39c46be2b80a506a3344f31fb1ddc646d72eae6202b8052c50c7d895b29a00. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ES71G2311999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9165c977743c72e7faeebf704060c2ff1d959553e79239fd36f4de5f76bc69bd. 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/QZWDE2301728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2882e2cb32ed45504e331f6c43c06a8c475616f7a80e5a046eec63dad36f61ac. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZWDE2301733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6483a456aeffd99034bfff57f34a337f6212896ae8f0e0ec5bbd64168df7a2b2. 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/QZZ8B2455970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb937a9cbdb378529876667dbc5e0b047f57ed4474e8e25830d2a85c1807517d2. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZZ8B2456050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9c901a60ea0857a4c29fe5effc677956d0d7f08c327373e1f9f66cda8934306. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/QZZ8B2456051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04234d6319c86fbc269bb95758d19a06224426a7283e146940f19ebd0a03f887. 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/ES75E2407440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e6a6c996887bcea94699d8e70669aa6df9bb01cc94d7c3a54b0b79f29805a1. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/PTEN11600018.
Enchufada Upper Cuts: Four Years of Global Club Anthems
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4711eb7a45f1b9d2bf245ffac6ed0802bbd709d2430b2ab365ba7f9c0fd9b9ef. 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/PTEN11600030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64bc9176cbbd831458fd6b8392ef701e60d21c1073848ff01f1fc7fb677c45e9. 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/PTEN11700019.