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 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 0x2107ddd7b16e00a084d2674a384b6560621116b6087ba11085813cd9713f07d6. 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/605a6750-0ec2-4752-875e-226d712c5607.json and https://artists.proofprofile.net/proofs/artist/605a6750-0ec2-4752-875e-226d712c5607.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 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 0x2875c3628fb9cd2589841ce0e21ce070514f61ccbfeeed694c42371d1cd75ca2. 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/USA2P1009822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e885aabbf71fd8dd211c4f2441d60d4c7d01f8ae43b87c26fc5ff6fcb107eca. 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/USA2P1009823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x422fca24246d54e995d33739827bd2afadcacfc40d651ab5b014669c3679dfc4. 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/USA2P1009824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96cd94c60fed7f5b6a6a7fc9e7f0a22ffdddbeaea88f5354baf3dfb806f71f3e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USA2P1009825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95f3c67924ca481425d8c132168968936fb6848a52b51eafc290c0b0685df687. 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/USA2P1009826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf51a0ef92ac0ed347b9e9005246f841e642c182c506606bacf88531f103ff617. 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/USA2P1009827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4fc9bac68206d65851358bb4d41e2ee77410f3a6d2771737d02dce3110be798. 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/USA2P1009828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb626321131310c77500a3972b42fab3fc908dd184d759d697858f4147c6961a1. 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/USA2P1009829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b5df8698a80c43af72c5cb0d76ddb4584d4fa6c280f2a7944c17ac77bf16310. 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/USA2P1009830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x864f64417070ece9fc26517356f585e839cc848b318ec38bb5dd3a065231e83e. 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/USA2P1009831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb50b38a0d60523ceaa903127e37dea70ed14bf378e5d11db2e4233a5c9d6cdc8. 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/USA2P1009832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6d442344b570df7209d2dcc9ec430f9481e8fe30043c4b8de656a305d30a044. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMEU31725004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8b8c1f024d6ae710e4ea44100611bbedcdb8fab3b10db68c67ee96187964244. 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/QMEU31725020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49021835a8a055464a9565c202fde61e6087769fd8266d7e8fe40038548ca4a5. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMEU31725005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x897171cd5f9987134a9eb5322188deb7363fd5871776705ac57a8d48fd76adbf. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMEU31725021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61710c183a2f038db810995eaa11a004c117930e677815efd7ded1830f0f9b8b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMEU31725006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdedde0b9887838d6d4f0602402479d8412c33a14b1249610ad5a82db0c2e3059. 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/QMEU31725022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a9f8fe3e4550d8b0360af6be9e51523cbfee6a85c58049bbcf8bf27640da4c. 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/QMEU31725007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78dd9639350c88cb83b474a1f66a1cf94268ee0e1ca169c106e4f25bd543d82f. 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/QMEU31725023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff53c5060d235342cebb42c28416d372ad85d4241498ecf62a87e6f4190a1d6. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMEU31725008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a9e6a4c7711a093b2c799a6e716be2795246499df8f8718c66af9a240dd181e. 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/QMEU31725024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x425218476b813aeb6f8d2de376c63e644a4382b89c0462cc3735708a3d56ec47. 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/QMEU31725009.
Three Glyphs (Wind, Beloved, Protection)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa43c18ed77c8adb92cac9e2627f9cf9a9141d8ffaeb87ed555136a23a6a69b08. 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/QMEU31725025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb500078770c0a1922b08cb602f3cdaa669805529db1942c5c58661fbc198a42a. 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/QMEU31725010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc545228f28cf7168ebdd33e63d1ef94d47475423fa57bebd1086ff396f73de7c. 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/QMEU31725026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7f35f78adde3fd15d14e4c678d23222c89660a648d974d92249062a7074a61c. 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/QMEU31725011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4937c724d381528423838586e8299d6d4b1a9f683db893d4354018f2ba05695. 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/QMEU31725027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ef22084c70d731b322278e7c6d95e3604a4027751c8a97990c4463c1046e68. 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/QMEU31725012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf2fcaaabc18bacf44a336d8f05418d7e33720bde110eda99fa701d9f62c683. 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/QMEU31725028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3eb8faa69e0321a45ad49393d778804a71fe8459a02538c92e361556c1839aa. 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/QMEU31725013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2bf3fecde83eba254e0baee5e826dc7daa0888ed8e9c3fcb579af824a66c175. 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/QMEU31725029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x327e97eaac89a8280dd07cf09285525feb0a791a00e12bb71f4bbd25c3d7806b. 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/QMEU31725014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb22227c33631c3dd68172860486f87ee621236afe4616629ef7b5059f5fafb1. 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/QMEU31725030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cb872a69fc7e65a2de248bbf4bb2c1de06fd399eefc1eb8d2fe841284cd027a. 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/QMEU31725015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ddefc91562ddd16d30181eb472436df746586c39afec79f634bdfe1beea661. 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/QMEU31725031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe038853e92b3ef1dd938bc146b4e669d416d410cee87b052839f52c65ada2de4. 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/QMEU31725016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x862f2b8c582f2d9b251912fec7804b5718b689d5297587eef89b0ad66de56ac1. 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/QMEU31725032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x425e7e286335abd5c3c3cd0ccb7d75ae4982003d1cceafddfd7be60e82186dc0. 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/QMEU31725017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62612591fe0eaea1e2fdf2ca430e54ff5e694b2ccad029025ef868ed5a269a4c. 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/QMEU31725033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x666a461946088d2181ba8028edea582d6f6eb7b3c003b338bb56445172e7d95a. 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/QMEU31725018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76238ab0eef8ee77d5edab1a04bfdeda9b32be6521cc2c231068206d9db550ad. 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/QMEU31725034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa1c067b6e618e05e9577111d8e14f33b553577bd90a1c8ec6ce3ab83a6e60c. 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/QMEU31725019.