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 0xe97b40f988b37b1bc27509705423563f3ed2ff9cc6103b0a2f91e862e5cb3d40. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/57b1ead5-6442-43ff-88c9-5c33f85acaf6.json and https://artists.proofprofile.net/proofs/artist/57b1ead5-6442-43ff-88c9-5c33f85acaf6.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 0x1c697185e95fed3323cc895bc2099e277debc54f7a1b050797825a5f2f2acd5b. 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/AUJHC1300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f6c97e153d1cb3a50401abea7ee457f2aa00ea9520026703eba7f3a7d0b7a08. 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/US38W1733601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe11b2f12fa3088c0cd110fa6baee64d2b1e895878e7683b23f466ce992643465. 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/US38W1733602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53eab84a14f0a35826264d5702c3af59ed2fc6999cbe3f1351567e9c51d12d26. 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/US38W1733603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14850fc711c7ef0df7b75ecaa3993b70cf649b1697885ef2576f0057a5dacc3c. 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/US38W1733604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x592613986676ea3066f7c92882c38e71e350c2c9cf01d79637a01807f06b02dc. 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/US38W1733605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4007a67c7e7f346b21c5945586df52b983193ceae82ed491aa0017232fe46d44. 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/US38W1733606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf520cbaa2a706c0028a89d5485afd7837a0f7ea2ccf613486c5f4f9eeb3ae22f. 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/US38W1733607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c43dbe10f86c95cf7cabca0e7bd5777a03142e29d37ca6db94c2f0e4c528d32. 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/US38W1733608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa01868ab49a426aabc8296c8192f3074386f61f5f2ee5adf7fa85eeca238e5ad. 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/US38W1733609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0de01f418e50691e0501ce0d4d81ca4b21f70366d07395dfebe8b4795650c2bd. 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/US38W1733610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x822d17a19e2b0fc442c783d7aaaecfd8665ee96da3153c2b5bdfea9c8d41c98b. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/US38W1836901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce2bbdf422a3cd40301613a9e719e672ea87a647591cd5197d65f80975450cfe. 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/US38W1938103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a1829cc49082ed3a8dd45e3e84bec3a8930f33fc0a0e06d22a5e8bf0e773c6. 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/US38W1937808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea19f6a6f27fb35dfa9d16103cc621a40e781e2fa97af82c25b813ac873ea3a1. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/US38W1937810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7649bca04bf8d21c6cb19e0fad7d9b7214f05370645e339d00d38caf5dd39cc5. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/US38W1937811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1787b80d38efb78a0044733bae41eddcfbcba9498404e994373caad886c1cc9c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/US38W2041101.
Islands In The Stream / Midsummer Nights
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf93c8df0b01cd9035695ec6e32eeca8f4f735c529ab1c54d2423f6bc376f22a. 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/US38W2144602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x938314fc239e9845571b6df5b8648c716df3827892026a88b1080e69b3d5c184. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:20:11Z), 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/US38W2144902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb439ce3c01972d0655098f17dbb9e444ff5b06a6551efcf78611f0da8377200. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/US38W2144901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2248df0b17056eb95d2cf16edb78aa7e15cadbf516292e2cd90879db87880f1. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/US38W2144906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d701fc906dc9f5451576917eb7c9dc0f624c24871b916db0749d79929c8084. 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/US38W2144908.