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 0xcfe35b4d549f6be62e053634296603abc03ef9be831b5a92bea892b9c24a24fc. 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/117451c6-861a-471f-88b2-4f51fa97b7d3.json and https://artists.proofprofile.net/proofs/artist/117451c6-861a-471f-88b2-4f51fa97b7d3.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 0x9a8000b62853250f25f060e01a7637956494020c752faa177b68f81ffa4d78b6. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:00:52Z), 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/QZFYY2582263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x457f990c0ad3fc0c62694daa1828413436aa158c2acabce3aa6373d1fdfce2f8. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:56:19Z), 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/QZFYY2582264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd428c7125402a93089de04a9046531042569e78dcc09707b9552bc77034467dc. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QZFYY2582267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2264788723084663bc4fca74d3d9b409d158d86d41cd32b1b719c3eb0fa5bc51. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:02:52Z), 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/QZFYY2582269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d3ad545a58494e026c1e2042da315e8265ac96f0533f14786ddd1083be07ac6. 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/QZFYY2582270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec11812d90d37547919088923f87c01c12e6395c91ddfc2eabaa58d0e4aad03d. 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/QZFYY2582271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88e52545eca093bb0e61244e7862cf4818358711fc0aef39d521e8394d0bf7e9. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/QZFYY2582273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd47aadb06a0741b11751d4e163e0a90c8f2d2dee053ea30ae525cf70675373d8. 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/QZFYY2582274.
I'll Change the Course of my Life for You
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb74163f4b594d22252dc3dac3dcc0e8466b48bd4921147c32e85620d26a26977. 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/QZFYY2582275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74860150817e3723f82e892005a27d973031e20ed9cb78148dec37eaa702714d. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZFYY2582276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6b18f96952c35e3d3c5897ecf78ea08fcc53e55c0add10360dad1d470501c8a. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/QZFYY2582286.
Hawaiian Reggae, Vol. 2 (The Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fa942283c905f9314078204a638c17f6ddbb46f375c35d4ffbed24e9dc9c903. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/QZFZ42596687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2142d0c3094928c2e127394f1998e160a490e24a3c15d95be2d568f964bdc309. 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/QZFZ42596696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3decd5d93d3026e37508f5d940bfdbb58128d6afaa762351719c2b2120c8531d. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZNWW2513764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a939585450ae8ae749483c322aaacdef20537828e079d154397059b73c172f. 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/QZNWW2513768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd175493b89d3e365041be7eace647d0c1e666ba4fbef94b118e874e646852a52. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZNWW2513769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13fac331c25791075fe28047ce3dffa2e7bcd5e4dae0e545cba7e84e257ed734. 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/QZNWW2513770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99c9cab3bca665aed9e61e9fec9c8fdc5547c7b3c1d816304804390523f47f14. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:06:56Z), 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/QZNWW2513771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b568542f23f2e716bff6722b1b470b71c99025e19c0a4b5ed47dde204b07325. 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/QZNWX2546904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4b49e2454972fa4b317e032a000fc82bdd64016386e96b47e23935176ed7671. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/QZNWX2546905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x970799ddb3c74bb5c53ccc3ad5ab7ba59ff5f8d4f5b6c3e2dbd2a5e3ff09b223. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZPLS2535791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a1faf062efabb553e98ba92101ff7e612b7acb983a50bbde13847d6fe034592. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:44:06Z), 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/QZPLS2535792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc913a324b8eb25263bbf482c115113318a741403c127b7bd16421138574771f7. 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/QZPLS2535793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e1291a50ea16097b9c2a198d487eee15b746ebe4acfc755c339e2fa7ecc326. 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/QZPLS2535794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b06ab48bbffc6dc3b231a067e42483f79fff13b526836a05bc982b3e4a8593. 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/QZPLS2535795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1450ffdaa0eae5885ad18fc149cb7216ddfec2e68ecf079e281a37b10a3bf8b. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QT3EX2579977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1756e3499b1ba2671906b84c6561a8e9d4039ea3b423899b505c1eb2d1c72b0. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T03:05:16Z), 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/QT3EX2579978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2034f5f2a08342a714c92279d31cf24916e1f0717687db4f0b80c2e410cfcfe. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/QT3EX2579980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f7e2d1b164807aa9bb2f1be00fb95f08e1f849056c8faeb8f6b56d9590dde85. 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/QT3EX2579981.