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 0x4b2ed5f33d294e5fa70bcd0964ea524ebfcff96d05e95b3e223dfc6db6c23806. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bd023a4a-3f25-41d0-830c-1ec13aa644c0.json and https://artists.proofprofile.net/proofs/artist/bd023a4a-3f25-41d0-830c-1ec13aa644c0.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 0x74a549b5d4a4a42f676ceb896df8e3a934381ad5ee61ee8f720e728b6b216b48. 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/QZK6F2405241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8db9bc7a12e7316f5a718c537897b92d41f72207a557864d03e61f1c1ced7781. 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/QZES72425892.
Every creature dies alone (Foreverlikethestars)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd73350bb43ee86bb50eefcfdac9bf3a4393db353c98cdef2ab547c2fece8055. 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/QZDA62453166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff595aa81b09ddfd3a844c3f3f0ce57439330d62b88392b0233772f4d46ab936. 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/QZDA62453168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac3a9a43bb145399f152346084a1dad4afc1cd67dfb18f9660b81c00fc87fab. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/QZDA62453169.
Im so tired... (Static Sheep Terrify Me)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa137799d23110bc6c8d88c1907f8f0c1ac3b2f1e620267a2aff12f228c07520d. 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/QZDA62453170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be401f74917ef8fb4bb622c3d20d13f7bf7354bea0d200c520083d5113e5921. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QZDA62453167.
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 0x99d74152456cd665beb200556f33544736c05d37faeb6c634a888f162ff35414. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/QZDA62453171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf388abcd13f29d1a1b7a3e7c03f5d5945773e7dc0550239de2e65c17d7fbe5bc. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USL4R2308865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8125893e9e2766c65f71e9c0c3bf35df7a4fb60b9c8a9e2e0ae520c027d05387. 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/USL4R2308866.
I Auditioned for the Blue Devils in 2023 and Got Cut (I Will Now March Open Class)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7598a794a3b57f6282335f3dc46c984a5e033b849888609deb4a3e9f9b96ab2c. 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/USL4R2308867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c6fab77a97ae2bf56fed8849db5448a9dbb03b73120f5ba55de1b5b7784eae. 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/USL4R2308869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c9603a89359f43cf88c2d4d60b45ab436a7d49bb9476268a2740a05ee70700b. 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/USL4R2308870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad418c6ff40c6a82f25e57bad59f9b59520c44a07be64ae0247c3fc3b6abc1a. 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/USL4R2431008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d013b96b57cd268ae5e9ac99156855363c33723bfb0d620a4db9af2af507d7f. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USL4R2431011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd3b1e0430dd0ae4477854c765ff6b6cf83d9d6d77874ec4d218fbd04e30ddf0. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USL4R2431012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70df7b0827aa86afeae223873a1ff192fca12a7234df093500d9893dd05672d3. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USL4R2431013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe04498e5c2ec6a2cc4224cf7b7cbc48a4173830163b7e255f029af01cd2100c. 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/USL4R2431009.