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 0x1ea23ee8bdffb67adb30896b09f3c6176d15b133e186830ad9e3c146b7d36f9a. 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/7c550a55-2973-49b8-a7bf-b3ae7effd311.json and https://artists.proofprofile.net/proofs/artist/7c550a55-2973-49b8-a7bf-b3ae7effd311.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 0x14da8769623ea00706e2e789dc7353a6ba8c2e2f2d9e7ef424516291db930df9. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/QZES71858030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe6da3d558a797416f772cbc947d01462012dc4a2007ca25f51f991a667fedf7. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZES51976520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76fa240b36efe55316c5de357a42b35846bd259fad936cdcf0b3fded0160c99e. 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/QZES51973787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5272b2e963042f5aa9fa0173f5bf40c8e3035b757b38bbc06318a4e4657163c1. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QM42K1957505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc298e6839a72836bf5e7105655b136fd13c3df9237fec566345842faddc26410. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-22T01:29:31Z), 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/QZHZD1935315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecac1d93968ef9267ff4f40a7802913faf20385244903a8c635eebb0eabd36d3. 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/QZ5FN2086855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa60ba9f43b9b71e5988e3c6d440e1143d07e070bbea4024d2627df6bf5ec9b3f. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZMHL2072514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x111a11bdf439733ea48c4a3fe772fbe8432577ffb0e57bb77fd3b03220a4153c. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QZMHN2017611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a4c0a60ff612d2e6294004baaaaf879be5358634fe2754f36deb550dba027e. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T08:04:50Z), 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/CA5KR0004294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72212a64fa2d749d4e577a3a394577ecef5a6ebb7087dc9c3d1f81415b3e0b6e. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZFZ22207165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dff7cb99616b50debeb03575db1698a8fbdfe59f69cf786332505a5bf9df3ee. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZWDD2209518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61cf4ef4312e6c82397300dd64b7d24cf806a4d78dbdb6dd35d8eb5b5055c34e. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZTAZ2267352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68bd7fa6038c6a1f1cbe765c11d8ba16971991e46a8baafb021ed9d562565199. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QZTAZ2267353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99efe1971a14b08a16b9ebf921d1ceff96f0be37b9cc92c450dbbc1f63c307fe. 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/QZTAZ2267354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf243cc90c172801c2d538e393fad2a41a651340d29d843c04f355c400c3c6f71. 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/CA5KR2417176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97534fd82d5cb72f5ae4768fe93f687480614ca302c129b47dc22824916c2e82. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:57:05Z), 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/QZFZ62487660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a0e58ff63372a32ae7a62017fa0195226e1073f26f44247922dde06bf153e26. 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/QZFZ72489801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x947a2bf6f427caaad8a027f745184e471f4d7f6f538b51c8a12861f5ad2d17e7. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZNWX2416231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7110882b9c8cc598bf084b61bd96dac1ecbb9e1a082b14a9e65ac9d66d8242. 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/QZES72548741.
Unidentified Flying Objects (Space Wizard Remix)
Unidentified Flying Objects (The Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cceb3dea79b3d788e081ecced0db3426a5dd815161860ed9a73bc4178a456eb. 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/QM24S2202441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ee438ce4a84efd37583b13278990b9a7f41db3dc38115b5a21edeedc363085b. 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/CA5KR1964800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f151d96d3d1fe7602f292c0eed7d191125124310c5fe9305bb977571b677b3e. 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/CA5KR0005574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b4a1fbe5705051daabe7abd6c6e528c4bd1c6ebf2404cbfb1cf05bdd0f7a892. 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/QM42K2015818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x194f3c69dd18dba15cffb2ca43581400e02fc530dda2fb27ff16045c3a0b7c6f. 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/QZTRX2220462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74b7a57e03279f3a77c382927879471f09b18962ab58648d1f388fb51099f263. 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/QZ5FN2005297.