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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 0x48e7edfed9c3f33fa90369de8b0158cd978b40dc2fddae624413699709b1fa7f. 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/fc69623d-54fb-4380-9db2-5bda43c6c8cf.json and https://artists.proofprofile.net/proofs/artist/fc69623d-54fb-4380-9db2-5bda43c6c8cf.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 0x92dc50703d3280379a4eff7afc14657cff294ce5445c853dbd9543da996fa142. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:32:11Z), 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/USSM10025710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd41ccb666ff4a7cbf23de124020e6629912ae710545473076a422a2c03d995a7. 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/USSM10026685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02ce914642d4d48b63ad530c5aeac9c8117c430ba3ee51fcff19f25d93ca6dd0. 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/USSM10026469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff6f4022cedeaf6932066c95104de34cdb1598e6d35639169e909d67a0a4f50. 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/USSM10026470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c709370b2fc4433fb141b174e5bd102b6feab9365eaf6fcbc66ab757d08ee5. 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/USSM10026686.
Maybe We Went Too Far (feat. Patty Smyth)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90427651db7f9e55907f5d807817051c540b3cc3fc2431deb1601eac17c5f188. 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/USSM10026471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c6169db4855f4f8024fb61a59b2c4c0729af56751b8e117b62501fb1e484de. 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/USSM10500755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca88ceb982507382591eb63424457a995fe924eb63ebff6025601235301bc1c7. 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/USSM18400617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca88ceb982507382591eb63424457a995fe924eb63ebff6025601235301bc1c7. 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/USSM18400617.
Just Let Me Dance (Maxxi Soundsystem Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x191f534f5499a9f38180763fa86b8793caf97eac21c6c730706012d689798344. 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/USNRS1229765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e69ac29cb3ba433d151931a1d7ec2944adf548b2d1b5a27f2654d7a4d21915. 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/GXBDS2313932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78c8db786e4f99b73e3e6c7223534aea9e4e8f623fea28a163939df097ae56c2. 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/GXBDS2352244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d4671034b27c4fd9298840c1bbe18db3a546909bb0a83ebcccacae171b49925. 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/GXBDS2350122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23bd76754a101e71e2141033175a9c20b1e7319d9483ce8d4d1d118011bd436e. 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/GXBDS2310426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca88ceb982507382591eb63424457a995fe924eb63ebff6025601235301bc1c7. 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/USSM18400617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7867c90e7b86f2b6a6259b5c3bc261885b01e182ccca171aacd49f1b029aac4. 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/USSM10500754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7867c90e7b86f2b6a6259b5c3bc261885b01e182ccca171aacd49f1b029aac4. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/USSM10500754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca88ceb982507382591eb63424457a995fe924eb63ebff6025601235301bc1c7. 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/USSM18400617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca88ceb982507382591eb63424457a995fe924eb63ebff6025601235301bc1c7. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USSM18400617.
Sam Records: The Sound of New York City 1975-1983
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x971b45662c55a29997b643ff8429968897d544c0101a95ab1e0bb2149f468544. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/USNRS0721750.
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
I Don't Know Why I Can't Say No - Live 1983
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fab01b991cab5bac666c281dac40665237b596498e7e53c3f498a97b234723f. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/GXBDS2342303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c2597e5dbd0bb00dfdcf5298dd51b57f8a6242cfe69f741ff376bbd794e3792. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/GXBDS2329316.
SAM Records - Extended Play - 12" Disco Classics
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3783ada69a18ef0a4666c6f17d2718951efb84fb71934d52cd9cb94038d5de1f. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/USNRS0721749.