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 0x586f90bafbfa3561aac46491417bdacbe042c18befa746f79a63431f862b327a. Chain 2 (Bitcoin): anchored in block 953758 (2026-06-15T07:48:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b00c87cc-00b6-49af-8046-9016e7b15570.json and https://artists.proofprofile.net/proofs/artist/b00c87cc-00b6-49af-8046-9016e7b15570.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 0x1489aab2082a5c1d8bc68dd11464114ff50c00eacad1dcb7df7c37a40fb35270. 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/QZTB42302937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ec7e5e83463e2ecc17e561f196ebbc8089ad932bc69964b31b67cb051e648fa. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZHNC2499367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ee22689d067b0b1310055ee4fb84122266ee3860a73741e1e3a116a9f82e25. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T07:02:53Z), 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/QZHNC2499369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8968441153c0fac806b587273a67565a5679b6b00fa451862b33f0d1f4b2a7a. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:46:31Z), 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/QZTB82315516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb687c9631e3766f9069712b2e0740e9a67efc57cf1fa149df1d9603822636de5. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T07:08:49Z), 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/QZTB82315517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06591aea77fd85abfdeeadb3a6873c598b07d2a888e44ebf21085e6bf669ccd4. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/QZTB62309049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x783bc0abf042ca800398c2349ee46f0fead6a370935d893d4d88c3e3147edd9c. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZTB62309050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa24b36ee6f55e7ef153e6b46b7669325a9977b3a542796175eb1bfaacfc939. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:33:19Z), 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/QZTB62309055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38390854221d0fbc3988a171faa8889a0902c1f282d1bf3b652d7c0406b04614. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZTB62309056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6739d013389b8c73d43e4acfe31c0951820ce8c34a30c8219386315fc6b3fb8. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/QZTB22380771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b86df89377bd80183027aa1b094fb653abeda3e8c7656f3a1da4f1f7bdee5fd. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:20:25Z), 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/QZTB62307342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb22e89e9ec2146ac32ae13a153328cbc5fd716ab266a87272767b7ca57c63e03. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZTB82332277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d3af710c8e171daeed1d13585cafb74da2d5544b447bd274c6402801f9b721. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:23:18Z), 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/QZTB82332279.
Rest of my life (5th wedding anniversary)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb22e89e9ec2146ac32ae13a153328cbc5fd716ab266a87272767b7ca57c63e03. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZTB82332277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d3af710c8e171daeed1d13585cafb74da2d5544b447bd274c6402801f9b721. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QZTB82332279.