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 0x899d0b8e7ec18816c12e7ab150399ce5c718bb46687206f9206c63ee84f882a4. 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/ca9d0932-fd8d-4d2d-ba76-5d167180cce4.json and https://artists.proofprofile.net/proofs/artist/ca9d0932-fd8d-4d2d-ba76-5d167180cce4.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 0x506c3f62011a01e524614fd1c2eba21c6b91544f7a8c2170e63274d73d6307a1. 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/USTC10776663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec627c501b1e939db75967f5eeeb95a3980c3521ffa957125697928cd5ff2c31. 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/USWR60252253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9af8d5854d22466d46520f5eaf9849c14cfc90e49ce0fa3435647ebec81148. 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/USWR60300434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf55e7c5f7e274615f01fc816f160f78c6193e97779b1fa1d134ed3c6a2bd40c1. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:32:36Z), 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/USWR60300435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aa0c0f37bd0e14e331c32bb27bb172259861cf47daeee22367b1ba74392c88c. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:05:25Z), 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/USWR60300439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef265dbc91fbca4194a7198da4e5feec4fec7ee33de72c10c9b563dba075d532. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USWR60300445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8083c3a0204da3b74686ff8f00fd72aa8c298d01de40c93353f514206f6c5fae. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/USTC10774699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9978cbc55e085b15775527fd805ec14a52ed01f12974c2334e3d6532ffa7209. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:55:31Z), 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/TCABB1175273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ba473ce8dc25b6af2f22efb2856c92b31244deb7fd2277ef09ed55ffc8039be. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:10:20Z), 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/TCABB1175287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4307a87b945cb957ecb886e8d2b6ed0f88f56bcf5415fe151a1a4bcc4d88eb9a. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:29:01Z), 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/TCACB1443790.
The Unusual Tale of Mary & Joseph’s Baby (Songs from the Musical)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde540d3f66816d565f0bfd562a58dc21ede7b238b45b896d7b8c9f741b8ec2c1. 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/QZS2V2100003.
What A Savior (Psalm 65) Featuring Waterdeep
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde540d3f66816d565f0bfd562a58dc21ede7b238b45b896d7b8c9f741b8ec2c1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZS2V2100003.