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 0x4b2bc12cf1a9538806988ef8ef1a3ff6bd2f0eb4eaa45dbaa74a2966e117a0e1. 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/71eb6313-15dc-43c9-a794-8f4afbb8b127.json and https://artists.proofprofile.net/proofs/artist/71eb6313-15dc-43c9-a794-8f4afbb8b127.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 0x3227515501b1efa593510b559b8654359941310f8fe5d473d2d9e057f4326b85. 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/ZBUKK2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fca604aeee44f92021bb15798ce7bd556b3f65729abb635057001a99d55587f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZWDW2444387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbe1466db4f5961f1e33631206046d9aa489e3915d7a198543482f6f3a864fa6. 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/QZWDW2444388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38f7e5e309955a91d87e7a6eed03e95835cddddb7214ca793d54b55b7445f5b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZWDW2444389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12069ce444fa9cb08e750ca2a372ced2126fbc0192bf57cf481b84fde11ad45d. 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/DEY472380426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcabe2b1ef9f848f464df233e433cd8bca7f3195964371e1e8bd26ea43365d7c8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZWDW2444390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b62357e9fa240f58f2d946cb9e984ddd925bfc7e7dc62bc800850efa2adc8a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZWDW2444391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4d376cae81e381b8866bc7c1e983a6f5f99fe19b0b1f59f75effaf83a8ee43a. 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/QZWDW2451623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb33df141b62210cc9c017d32926db34b58759514a2b2c5f3ad094c05893658a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZWDW2444392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x542563a5d25bf320ae72ec52987272867de0996d673bed046c014e3d5e2b8ae4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZWDW2444393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1cf0fbd308310f61e3d3d094cf1cab5dd14638694df3cd2bdbbb914421d6a78. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEY472271018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdd9c4e207667a7d6dd6d863689b79e8140a74798c492c39b4a0dab353ea2d91. 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/DEY472378387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x744accfd0279574a8398daeb933dcdc03ec397b45761c814d7df713021d374df. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEY472378376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc303562aa92cd7c7222b257f33928ef6ba138dc1a75f8bd2e683ad2e5529315. 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/DEY472378388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f7afd0c04e529b8e0d5cc1b243f500603d29ac3c9c02a7c66455322f6cece6c. 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/DEY472378389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51edbf94b40ea672dff6aaa4a3cba2f83b43b8bc969d1d7286142fa301823c58. 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/DEY472378390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x297381a044952c5fc6adf83feda28088b476a10d5167c07fef3a172983698c72. 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/DEY472378392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf671c1058433dea283e0239997f99b8e664028aa9fb591e895cd0da03a9618f8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEY472378391.
S.O.O.N 2 (A Better Year) [Deluxe Edition]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1cf0fbd308310f61e3d3d094cf1cab5dd14638694df3cd2bdbbb914421d6a78. 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/DEY472271018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64fd18e6b076b0307b6138d219a0e0ae6aefb000d337b010898d69ad38cbe02e. 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/DEY472279285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92cfd3892ec195a2023aa57e2381d6cd0507cbca572b2b5cfb60c0a8e07bf1c5. 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/DEY472279287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf92ec2fc18c8bda6710b7aa4dc0a38913e560a064e6c156128b9ea90fdc9155. 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/DEY472279290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28c409114b2e5c54c9410071feec0fae8c0b91ebf758852281b663a1768d2bed. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZAC012301123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e277da52753f516a16f54d35c3c08ed0e403d77ced0dbc9717ba1f92073f35. 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/ZAC012301129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc73a9b0e7982c5e6ce23d5de0df131c2959c8a570f5525df1820adc3b39f58ba. 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/ZAC012301132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d9213e4f0dced9c36c179c39934de271d2bee47e24045ab51e9d65ed09acbaf. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZAC012301142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4faeab030ebd464d45a155f3db31208a9ceefec3df2dfe1f82df424b6af815f. 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/CA5KR2362359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad9052e3a54796a3a12f4dcf1df8e634ac37be099f9fcc540077535f2dc5ecb8. 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/QZWFG2330412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ea05f3a57cc3b0e4989aaec03ef217e0682fa1746947a9b10581efadcac201. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEY472373951.