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 0x276acfed86485b800d4d10262459a2bdbae32181ba773fe046d0a782de47dca5. 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/c19a7fab-32d4-4ed6-8f73-392e307a35a2.json and https://artists.proofprofile.net/proofs/artist/c19a7fab-32d4-4ed6-8f73-392e307a35a2.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 0x1f127c67486103c6171b76bc2dd9585bbb621426cd44bb4d347a2bc6b74be003. Chain 2 (Bitcoin): anchored in block 958602 (2026-07-18T19:28:16Z), 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/QZFZ61942234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff3d8b7c75b2cbfdd1d73c84400e0a513bf41f32aac04b245b7221b0d3ae4d52. 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/QZFYX2056368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce42440121950f8b692a22fa7eaa8ae204cbf3bf9c73299e5faba1ecaba97609. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZMEQ2008899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1f78722a3e9404ede842cce7a1624a99ce59f320121a83021304b04db3295f4. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZFZ32126309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6e3e3843e7c66d3ee1850284eac66700dd9937f1063ccaf017d9ce24c6f3c44. 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/QZK6L2104129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe254f812ecd0100dc695c99ea08aac147903b72d6dd6d4dca1d9678324d821ff. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZTAS2180667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15d5c2da348e51753e27218213f4650eaef39aadb939b0b6f5c1af33ed20c37. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:57:49Z), 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/QZHNA2270023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf0f6fa9fb504c23877e6cae7948235699b55bd15d9ce5c47cd32e4dd4e1d73. 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/QZK6L2205869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed14135dbed11b1d885a3651e666e891761d9f7f15d7e9c0be2e833e722dfb0a. 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/QZNWX2276343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb143f9cfc9a6b5a655840a4e023709dc8fde33d6415e84009629012d294e8a90. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QZK6K2342263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c212ae90bf19ce076a152f838eb16c3d0072b605b49a8a5b86576bed92245a9. 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/QZK6G2394563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb52e8aa0cb5ec548964303e0907fcb0bf1d8f9c470d052b2c08c9d4aa94e2e52. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZNWT2489144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75f975c2e59ba851939937f3c64c58347c36ca656be3cbd5fbad897aea26d98a. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QZTB22468115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a6fbd823feff473103e9baec1e56fb180f56b092fe0767453d0b7e24603198. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZTB52448330.
and if my depression wins, thank you for listening.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x419f5c8de56af609461af4e79bc6e3c40468ee9f9ea9b3a7bbb5e18ed068817b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZDA42518144.