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 0x0d8056de4e58757cf1d6fec606118df73ff22d624c71d1be0cbaeb4ca405b814. 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/ccc0382f-d0ff-4c80-b572-c21a702908a1.json and https://artists.proofprofile.net/proofs/artist/ccc0382f-d0ff-4c80-b572-c21a702908a1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Standin' By The Road (Live California '95)
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 0x8e511f37d391dd886a72263944ac4acc8ede3c667a232ae8242829a07e3061cf. 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/USYJA0900048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c715c7a41d9bdb8436649fdbb08399113896f712e256d20c0b6292b5eaac908. 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/USYJA0900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc47ac0c96f552e45aa70ff478c87ae115d1c63e90443ffcb4646dd92ccec695. 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/USYJA0900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x458a2de45c70a8731b878d419d07cf2afe09dbc858508ba09fadf803c9566dfc. 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/USYJA0900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdba97ec339cbd60db71349066fdb72e7612045c39c6d83302b0b2745989cfc9c. 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/USYJA0900029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce4f03aec15f0088237b95b25b2aca6fabcae416609f3a6705b6d6e4be5a8ce1. 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/USYJA0700019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf271a86bd4b7b1423ef8d63227941118e867f030b4f7d55c7c16d172dae90b4e. 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/US27Q0861571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46602101525d791df4781c260cee4ff55c3b4ed0515d758103d73062a82ffa72. 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/US27Q0861572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ee69a535bf22c63bff9ae06b3da18e241a1dc0d9d3353557790b2d0b22607a5. 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/US27Q0861573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c2c0fc22745398879fc8db5fb74fb5e73358cb051f2493618cce06160392170. 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/US27Q0861574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf70ec7ad8de19ca001dda18efa701529707cda09fe4b73d3009f366379fef1a7. 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/US27Q0861575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d68ac20b84b2b6ec4800c7afd06955f90d0247f85f419c2902964e4b413e81. 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/US27Q0861576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f77a7dbc696e7a27b5e49723107c9098c3d61d77fa42b0294db81b318be7329. 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/US27Q0861577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x630e2dedc4ebd6b8aeb16286ae91667d1bd8ab800957e17429ccc9c4a333c8c5. 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/US27Q0815711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3813b4d319f3b20354d99d8f84708cd2c064f2364d8c4a77f9df8a7eb2b31e6. 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/US27Q0815714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab79ccbc9a4e844b1bcac9de2f15e2dc6e2a57283c3d43f2a696d5c01f443629. 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/USYJA0700100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e6483b81086477b665d8328bef539b46f5ae95682a0d50fd7ebaff25e8676ba. 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/USRO29636306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a3c396dcacaa6d8d1c3b2dbe702a0eaf3dbd1f885e1de12556e3f056523ebf1. 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/USRO29636307.
Woody Guthrie: At 100! (Live At The Kennedy Center)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x224e71b75c09f36250b80901a3c9f5255a3d81b49e37ba0d10768e0330525986. 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/USQX91301083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25673faf34ace03116e333723eb09ea9ef9084863dca25b2e608a921ba48e09c. 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/USYJA0700030.