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 0x3299fbaf03857e8b35ac45c52307577b26b9d465eb54e71847330836a1483aec. 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/07f823e0-fb1d-48f9-936f-728f085c7312.json and https://artists.proofprofile.net/proofs/artist/07f823e0-fb1d-48f9-936f-728f085c7312.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 0x26e7619ccd695bfb10650d6b87943321d5d02cb0d7539469eb0909959e72bac2. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZDA42340275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f08ad0d297ff866ff425d98cce7cc29e4e0cdb92aa74463eacf683f64416e41. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/QZDA42340276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce677838534edffcc3a02c9d3704ebac2dc5dc57eb1f5fd27d2d178732a81598. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZDA42340279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fb62abb6e73b067f76fe11d1f841d536ee7caf58e7d12d7d08ae0fa6e1d297a. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:05:16Z), 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/QZDA42340280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc468598f59f27071316962ba62cd1dda11dd763f42202bb460b535e0bd835ab. 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/QZDA42340282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b2fa18f3b6118c92f9e9a742991b496ab3c26111da131c14d6fc6e6e10f9293. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZDA42340289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee053597d6aeb6e5f6811fcfff4be8efdb257cb960a41fd6e7e30501cfbe22e7. Chain 2 (Bitcoin): anchored in block 957531 (2026-07-11T06:55:18Z), 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/QZDA42340293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c95730483ba6850d86b318a29b36ad89cf7ed49145c70d1d54d97548d880a1c. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:01:47Z), 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/TCADG1739689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7970f06bd9d672912fe8a7a16e2cf9454ec8bf399cc39b508e83cf1cc853fd9e. 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/TCADG1739693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ad6f31f2aefd82cb3d2748c95a987a82002ccf555c56f339de823949210171. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/USTC70995681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc9d87035809964f4a4a0b7bb4cbeb22a1d59d59e56cc9e992c50fc8af4eb027. 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/USTC70995683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd37418903e897373a37781ba7abc314d9f1d095a9cdd136daa45b9b2e3d80ec. 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/USTC70995696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79be20bc169791a20ba2de1e1c9b79cf5d100cb559ac14bceb01a6bff0bb3041. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/TCACA1421182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea04db2376963d886f010333552f7e524ea6934328019e9849962f81c51bc52a. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/TCACJ1536752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec742b44e25463d56030df621c291bfdc592a39948bffc396b2fd826dafd5882. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/TCACJ1536759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa21771562463382652c236f3a3d31cf94522d60a5bf005795de86ff456e9c630. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/TCACJ1536761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd362d1dfd5a3e1f0d5589f3242c01beca8d2d775496e0e510f5c079ed2f34087. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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/TCACK1508606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e74a6560417128703bcc3afdb8d40e39617d39ef7f8b1598a639e45f9a8673. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/TCACK1508610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5f12b56393ee3dacaf6335d329d6224e7a71832a5d0a9b0b4d4ea1113e24627. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:00:00Z), 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/TCACK1558010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a6a6af07a373632bdf93db2ca8f3a2321700bc3bcde5cf579b2d15acc639089. 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/TCACK1558011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d19934f2e8b2cc2261d8e7fc7a24c75c0b9101cf053fe69e9e8e8dc8e80efe. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T06:54:35Z), 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/TCACK1558028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b855da5cf6d72dcf9aab3d15530b6e272310105f91d1c5456fb7c6b9a3edb9. Chain 2 (Bitcoin): anchored in block 957531 (2026-07-11T06:55:18Z), 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/TCACK1558038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bc80c88210e0af9a04c30418464b6512b7ebcae4fc4788fd9acfc4cffa3995b. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/TCACK1558047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d4c4d94d9d9f0c6e0d943cb302c3e817e378c2e94f70f98ed00d9625030aca. 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/TCACK1558050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e8480f37f945ac2911b45624fe11a214cdc8bed02051d03d1f4a577d5a6dc77. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCACT1616510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x503492d445264f976498f44b72e175666d69813d1c361282160d7ea96fa9dc4d. 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/TCACT1616538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d1d42cd8d1c34f4f59a25ffdc20a9e4ebac69695c8a44bb0e105f68b7a392c2. 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/TCAEE1926905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x688ca37793248fa25b17ce7729b0fc53fa2475cd1b7ef9be10cc27107cc9690d. 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/TCAEE1926996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x351a5296ba4f51a024b8e46207202ce093349f346c814f76df83938050e87b19. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/TCAEE1927025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe5556657840adaf2dc16dfe02453bc635239b0f80405ea96a81f1883d7ef328. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/QZK6N2234892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81093089dbad8fe523e243c9468a1caaa56b102d560b735b8626d499c8726348. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZK6N2234893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a54aa7f34c007fa0c6c2097616f14a249b3f4de4ffe1777478565dc96b8410e. 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/QZK6N2234896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6bb0813eb5bc33e9f4ac2609174269e368a838af5937cc16c358e7a982c99d. 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/QZK6N2234897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb24bbe17b9a95b12cba86999a91692ca59e1130f6b4caf3d3dfbf32bc513bb83. 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/QZK6N2234900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209d8d63ac9f2087ef8697f617e45e7bf4bc31172452c3b78cafd0f8fbad97cf. 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/QZK6N2234901.
Skallaborations (Teardrops From My Eyes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72d3146847c2d0da385ca8f02287f7235f961dc648b7805657e0140a54219eb. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/QZAKB2407440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dbffc27d47cfa873901ff5bac1694c60dfa24d203302505e191b43d2cd0e258. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZAKB2407442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca60ac02fb180fe4edcd7959f8d0de9179245c783a358b98778d049bd11675eb. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T15:58:05Z), 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/QZAKB2407444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb29f51de90d4f74d40882f7d47992b3a8de1fa88625d8784d164e4edb3f2b5c8. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:07:50Z), 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/QZAKB2407446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72d3146847c2d0da385ca8f02287f7235f961dc648b7805657e0140a54219eb. Chain 2 (Bitcoin): anchored in block 957535 (2026-07-11T07:11:01Z), 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/QZAKB2407440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07b1c5c059e72a35fae14a0ab027144996b11b6675ce1c82212a41da30e8bb3. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZAKB2407441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dbffc27d47cfa873901ff5bac1694c60dfa24d203302505e191b43d2cd0e258. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QZAKB2407442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c0d0e1a905850af9eae6d68e1d4d95484a06de6016bb78c5d857e5095449b2. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZAKB2407443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2f04ce3594555d3bdddd83bd9488370abf0721ccfd5353c8c193f884befd4aa. 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/QZAKB2407445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb29f51de90d4f74d40882f7d47992b3a8de1fa88625d8784d164e4edb3f2b5c8. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZAKB2407446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf76a29e93f17f5e86295c48da7eb9a1d6729b18a3e8cd40627f828a3568e95a1. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:05:39Z), 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/QZAKB2407448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72d3146847c2d0da385ca8f02287f7235f961dc648b7805657e0140a54219eb. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZAKB2407440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07b1c5c059e72a35fae14a0ab027144996b11b6675ce1c82212a41da30e8bb3. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZAKB2407441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dbffc27d47cfa873901ff5bac1694c60dfa24d203302505e191b43d2cd0e258. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZAKB2407442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c0d0e1a905850af9eae6d68e1d4d95484a06de6016bb78c5d857e5095449b2. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZAKB2407443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca60ac02fb180fe4edcd7959f8d0de9179245c783a358b98778d049bd11675eb. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:48:38Z), 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/QZAKB2407444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2f04ce3594555d3bdddd83bd9488370abf0721ccfd5353c8c193f884befd4aa. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZAKB2407445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb29f51de90d4f74d40882f7d47992b3a8de1fa88625d8784d164e4edb3f2b5c8. 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/QZAKB2407446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b032c8cd834dc82c32e12289d288cfd60c5ad69b4a84092b98fa159bc38787c. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:47:02Z), 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/QZAKB2407447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf76a29e93f17f5e86295c48da7eb9a1d6729b18a3e8cd40627f828a3568e95a1. 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/QZAKB2407448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ae07d176645dc7ddf788153776d2528e72fbd611c3ecf1ebc4cf0e1b19549f. 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/QZAKB2407449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72d3146847c2d0da385ca8f02287f7235f961dc648b7805657e0140a54219eb. 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/QZAKB2407440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07b1c5c059e72a35fae14a0ab027144996b11b6675ce1c82212a41da30e8bb3. 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/QZAKB2407441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dbffc27d47cfa873901ff5bac1694c60dfa24d203302505e191b43d2cd0e258. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/QZAKB2407442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c0d0e1a905850af9eae6d68e1d4d95484a06de6016bb78c5d857e5095449b2. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/QZAKB2407443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca60ac02fb180fe4edcd7959f8d0de9179245c783a358b98778d049bd11675eb. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/QZAKB2407444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2f04ce3594555d3bdddd83bd9488370abf0721ccfd5353c8c193f884befd4aa. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/QZAKB2407445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b032c8cd834dc82c32e12289d288cfd60c5ad69b4a84092b98fa159bc38787c. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZAKB2407447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ae07d176645dc7ddf788153776d2528e72fbd611c3ecf1ebc4cf0e1b19549f. 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/QZAKB2407449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72d3146847c2d0da385ca8f02287f7235f961dc648b7805657e0140a54219eb. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:40:02Z), 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/QZAKB2407440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37620402c7b777421fb6969f000623bcdc8e96bb2377999f7fadd3902c754eb1. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:32:16Z), 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/QZAKB2407454.
Skallaborations (See Yah Wouldn't Wanna Be Yah)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d3c017a2259fba69607531da781308212924d2d12cefaaee72a0a901c477ec5. 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/US6QR1700055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e781deb690ba5718e32478025ed35eb4e8ab63e46bc228ebb06abf85c3b4812. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/QMEU32021637.
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 0x7ce5ec7ea7108cc28d238ad403d163111dd3959b2da0510faf3f691e6c970d6a. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/ARHXW2202504.