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 0xefb4e5884528a78c7abbd653a77ddbb814dd2b25c4f9e814e619155faf1eaf43. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6be15412-6e3b-48ac-90c1-217eaf6687eb.json and https://artists.proofprofile.net/proofs/artist/6be15412-6e3b-48ac-90c1-217eaf6687eb.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 0x293ac647603587fdcbd5f20f5b772097841f180a4061168e483ee442b37bef0e. 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/USYBL1900421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x203c2bc610993b7c502d800fc885f3b0c0595b825b9f45c586ce1b1fcfa6a04b. 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/USYBL1902114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749f2cd78ba9f41b70dad6b7729e46a2960ca3e1903f97f209e8a0a7796fa046. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USYBL1902117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83b19791d951f0b113849fc6d0297554cbadeb8afd8be6ec2a5331d9c8258e9c. 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/GB8KE1957244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x444b0898496acdb388271a4494a5ec187881a5e7eb912e0e27b0a50ace07e710. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/GB8KE2053603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bf90d493fa4c9cf79cd8553a2fadd1bfbbed66440c5181e49e9eac2e4d91010. 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/USYBL2100433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb186ce8a670bc2c379945c4c1a67740805f11fa21cf642fe122855080b45e884. 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/FRX282139991.
The Night (feat. Purple Velvet Curtains)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b8bb215899d2ac2eacb182e23714df44f977a3b3084aa0a09503fd580b1d06. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NLZ542101534.
The Night (feat. Purple Velvet Curtains) [Extended Mix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbee0427bd905d68a8f9942e504be917910110e06942eb43d9bc187f66ed58dab. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/GB2LD2110345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e7a82c529653ffea633826ede4e0ea55175137516af832e79ea660ca8050147. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GB8KE2164205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf2fcf1227ac7cef8a8e1dde672192a51508a919ff668660bdf160fd3607cea. 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/USYBL2200447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x188cddf8832ea41620cf73dc3156724eb378574ea7b02c2aa6e4d9fbf848f1ea. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/GB8KE2206994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3d3ed95dd31a4b37e93519b0adfc2342df51442e2c01fcd42b4749b5949f586. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USYBL2300429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b56cc4b8447c05641197936aed71f696d171d51750de0f7007d95aa6a8f3718. 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/GBKQU2353741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58af1147914fecd446ca97c991c30b52ca644c09dde55152ff31bdc4c090e9e8. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T19:13:15Z), 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/CA5KR2374732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5be1a02567b77e678183544d31f73ac0cb1429de98bbe7b0f922be6ae69a52e2. 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/GB8KE2403572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2992d75733ea1eddd9939e0ade9b0f9673249ba8acf7423e958afee23f6c68ee. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/CA5KR2437504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36a955ff682e99441dfa1382820bca6c79604bda029ffaeaa33cf3b7f9b49563. 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/FR59R1803532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51a97f187b8834ff2e6b7883513ac6270996bd8bb6bc421bf72c6a6ffe724847. 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/UK2HZ1800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a78d49109b0f044546a8c72f53b34549e77e2b1cb3da9465c9e4dfa8f0d436c. 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/GB8KE2056008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21a6c014f0aab5c155ca75d7e09840ec7946ef06548b0e8cc8daaec6dd534c4f. 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/FR96X2299809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de13810a8e4d58d4212672dd7682a5de70a2fe4e8e1f8e2ccaf32921d6e3654. 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/CA5KR2352836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3d3ed95dd31a4b37e93519b0adfc2342df51442e2c01fcd42b4749b5949f586. 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/USYBL2300429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8eba09e06e155b34a69bb4cf197c9af933a7ac1e80bac6004045b0ea2285237. 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/USYBL2001710.