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 0x563292fa26af846dc3b1903e9d2f27869b1fc1a5aca8c7ad73ae89468e5eb3e0. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a8b993be-0347-4ed5-8fcf-3a5d8bda33b6.json and https://artists.proofprofile.net/proofs/artist/a8b993be-0347-4ed5-8fcf-3a5d8bda33b6.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 0xf0236a1cf61304815147be2b64f074ca361a038490cdee69155b3887f1967154. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/GBKQU1908928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca0709c5febb16e5a96d5795c352ad0b38cf9dec6cc5f0f0ec956886bdad9428. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GX4R52170912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f7f6a5bc916cfa1f7a682eff0668ea74f7c499df76917b16dc4fd6b5fbb9319. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/GBSMU8584611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97714bb2ced50e6ea9ed06647be35c1ef8952f3b2d834eead80a109cbef448c4. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GBSMU8994716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x090f5c66b11136ab9fbf61ba6b35eff1c4b756d73b580020f79ce88c843346e2. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/GBSMU9205908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a43e682d3603b2a19b6fa652dad6429b281d6b08bdaf66a8c7ecd914d0abfb. 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/GBSMU9670451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x192dd58f06252eb0ab6ee40c1b3621656177337969d5c0649c660e8258eaa2a5. 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/GX38U2131579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c01e9f34d7c4f39c5f47760e495c19d2d038aedbae07d501ea2234ac541da10. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/GBSMU0000680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8491cf35507eb976cccff900909c1ca815ca1aa8cebf58ab56752ed56d205a33. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/DEUM72206668.
Like Wooh Wooh (The Stickmen Project Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8491cf35507eb976cccff900909c1ca815ca1aa8cebf58ab56752ed56d205a33. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T02:19:26Z), 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/DEUM72206668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca0709c5febb16e5a96d5795c352ad0b38cf9dec6cc5f0f0ec956886bdad9428. 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/GX4R52170912.
Like Wooh Wooh - The Stickmen Project Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69465ebe2547733998141deec1af0fe892b64175ed7e35f9a2f96da888fa867. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:31:12Z), 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/DEUM72207600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8491cf35507eb976cccff900909c1ca815ca1aa8cebf58ab56752ed56d205a33. 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/DEUM72206668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff1500caa5bc615bafc460f399ca564fe0eb9ceaa6925ad9690dce829d242102. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:05:19Z), 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/QZGWW1945477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca0709c5febb16e5a96d5795c352ad0b38cf9dec6cc5f0f0ec956886bdad9428. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GX4R52170912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x124f5d9ff381980a31e900e04aad802d9ada47fd3d3424c3d118cbfd1a73631f. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GX8LD2381418.
Let The Beat Drop (Extended Mix) - Sped Up
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f8db426d015ff5e7b0f3e4b353e28fa166a5c76e884e3bf9e3082faaddb293. 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/GX38U2321408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54f903db79fbaa6e870c5309f0c8a8e1367fb1b130763942e57c534bf07af8c0. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/GXBDS2366349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5be872d10e64ba1c49538d7ff437d6a373a07e959885f07f2323c8feb251360d. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:37:26Z), 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/GX89G2441597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b7bad6e02e989302ec4a5b49191e5667833d74f9be60b6ad78eee4434c8a02a. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:59:07Z), 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/GX89G2482234.
One More Time (Extended Instrumental Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e1e2fb191f683cc2099cfacd566a23aa5b4adfd759b70f336e65ced4d49cda1. 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/GX8LE2441317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea3c9ed55570722b1ff612c3c9af321be83731b84716d2b9b52f82bdbe7f6914. 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/GX8LE2465968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a158448e70c086be494fcce2e0d5af142d616cd063a7f2a007ac0c6a69502d3. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/GX3HH2439358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b5a6557e3d19547da6c33e1d826426e02280dbc9c9f78586015838fd52896c. 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/GX38U2422115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33413f295452e119b41c1664cc073f7ff5b8816a007b0dc4238960512f13dcc6. 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/GX5MY2444767.
Penthouse - Sped Up Extended Instrumental Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07d235a2035ea4f833fe9fe052272ff81eb0b02d57a77909293fc6ad2c1a51e. 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/GX5MY2410390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b1b6f1b19cf230f87a98505c6d8f661d64761d78ca1408d64c765143486f23f. 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/GX5MY2400504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75f684167ab538933b1a22f6fd0aaf2419794baaba802ffb983993439220cea1. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/GX5MY2407427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6abacfade8fc2590642c0b9b5a6a820aea690f9a447c57fdc38d3119675a575. 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/GX5MY2478847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4282f9f5019101e27beaa191c7b17651a948b9e8f2ee5856d6e37d362b50fe6d. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:49:17Z), 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/GXF972447489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x266642fe98f6989403fd976c0c01f0e9ae0e6e0eaeea7bb4efaee3969098c171. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/GXF972466408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca1d4902b315c5af24ba7165ae7f2f79825ea85bc4cad20976fe0440fe64ec5. 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/GX8LE2598138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca0709c5febb16e5a96d5795c352ad0b38cf9dec6cc5f0f0ec956886bdad9428. 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/GX4R52170912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca0709c5febb16e5a96d5795c352ad0b38cf9dec6cc5f0f0ec956886bdad9428. 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/GX4R52170912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca0709c5febb16e5a96d5795c352ad0b38cf9dec6cc5f0f0ec956886bdad9428. 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/GX4R52170912.