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 0x1169819b5a557744ff7f6503cf48f476443dbb0a27406c4d386f2a91b47b91e5. 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/bbf7d3e9-d0f7-47c0-9b19-236b2984d8bc.json and https://artists.proofprofile.net/proofs/artist/bbf7d3e9-d0f7-47c0-9b19-236b2984d8bc.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 0x244694f98ab51689ed0fecf3bd041d412bff5e6cde5064b7468d1d5527385ccf. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/QZYJQ2000943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b624b9902f75cc5903b6bb919d0806b9014d6aebf98a90f2b34214c8651beb. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZYJQ2000950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c8642fe690155be42e00a67cc0bf76f0ad2bea2a04d6db3d5131270bfea7dd. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/QZYJQ2000946.
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 0x0ed5b2a46bdc97853651b868defed1e82952fcdde63a85c27d7e9899df31963f. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/QZYJQ2000937.
He’ll Understand And Say Well Done - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9224e70550cb319a342b33e56684f7b1d4fb3713c54ea7642d40145a8af813e. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/QZYJQ2000938.
Gathering Flowers for the Master's Bouquet - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36a191f23aae403de858352239684f549193e6b5a51e0f43aec375a397c243f7. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/QZYJQ2000939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916ed4ad6685a266eb6ad81451f7af0648a795cce647a74a034825cbe1d49441. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QZYJQ2000940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e2705ddccc12731ae7d1ab8e141dd64c0ee4d1634b8fbcd809fab81e7846378. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/QZYJQ2000941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec1542ca4f5d0f49c49f6a442ea5e08ee3b2773173aa7e01fcbca6a4d0cb0a6. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/QZYJQ2000942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c633529bc1b28314f19988cb8781516f7ca6d0164d3e28009967d8ac392e0a0. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZYJQ2000944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd433c13192c63f851f29c51f4ee09912f41d3feb5d8d7018009ce00f908a72fe. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/QZYJQ2000945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb925deb4bd94fd8b761ae6105931399ffa7ef12301822c76af27ec2fc384af2. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QZYJQ2000947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc60f462215bc379a0fea42e44ed39ee6ccd83f3bd2a10255a5d632f005c39c69. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/QZYJQ2000948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83835d85babbaeddebf38865493ea5d347229f554fd60757a7b37d6fbef4a1c6. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/QZYJQ2000949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b5fdaee332f5ce1c218bf98f8cad6845592f19ca78bdb1768f7b24556efef81. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/QZYJQ2000951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d61d50f50bab6278e351957c7cdefaaea6f86af88afda2c9e7cd07e37979918. 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/QZYJQ2001007.
Dim Lights, Thick Smoke, and Loud, Loud Music - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a3c198e7cc2b1267f52d85c79fbf6e4a42da90a96f32981294ce14ed7b3d52. 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/QZYJQ2001017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa390da144f9c628eab4eea38d6c15df96b2bf4d592b1a0e5a93cc67d7e099a63. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QZYJQ2001005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0431b66e5c1ee9d9ccceb5ed576de4e264a944e841aa3d2d8633e3bbd521d613. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/QZYJQ2001006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf04ce2194b935a615f6c5098c0fa60be47da0977de1cc06a232f1dc3b4d0f3dc. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/QZYJQ2001010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x815473cbcffac4b3b0d5fabfe3239ffafcaf104981c0ecf96c677da508ac6ece. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/QZYJQ2001013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b68214f3251f501f38f7cd01cfe166b1a961cdfb3935bb238c77e1676b747b5. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QZYJQ2001014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c8610717235c8773b93e1c547dd93fd17acf42b566374537bf1222cc18688c0. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/QZYJQ2001016.