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 0xefefbd1ea65f2623a2d11174c2ab545a986a94ea52054b9136a7ef44c60d85e0. 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/561cb050-86d1-4525-8ca2-bd14bc4d192c.json and https://artists.proofprofile.net/proofs/artist/561cb050-86d1-4525-8ca2-bd14bc4d192c.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 0x4b15aee00cab50d63686a5985925d8f6c13f2a17d8c7d6de74c0ad02e3a8e493. 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/CACWV1997244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaefd2c7585d9014b6aee3c88dbe8aa9de9d68d6f745bbb530a796ec7a38ae785. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/CACWV2211447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1212ea63f1c1e5218ea7397d3f35597f26b4524b4f93f2d502829281751a44f3. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/CACWV2224971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8da6596a621d0ee95c85d455b3854655988d0388bd84d7e1d11a0ce2f722a2ea. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/CACWV2243315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff36e0ad8825e49f915b2f6b26a8e2d57ee522ff39b42d71e9fa10f5f47a380. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/CAHQJ2259056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e801dbea69894e8253460b99e4bf1e4b7f75d32d28dd4469d8216d222868e9d. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/CAHQJ2568765.
I Just Been Right On the Highway (Doot Doot)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cfa9260ae1f2772a875bf04acb811052e4d6719ad195b20900033b8f6a1689b. 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/CAHQJ2587406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0003e614a3339b6ea455ac178eb82add0098a99abe8692bea36ab319705f357a. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/CACWV2504302.
Being With You Doesn't Feel Like Drowning
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fea801b0ebdbe1b763e9773d46da3cb2aae2f5349ba9f2f851c62f4572df9bc. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/CACWV2510094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40d8044c6a6f90a078770a4db905f129fdaade90fde9ae5155bd0e87415ce177. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:47:48Z), 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/CACWV2519395.
Running All Over the Place, Blue in the Face
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7529653493ef613983771d783f6b9f656866a2131a3213e83974ea203df6ab56. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:09:49Z), 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/CACWV2548022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d623eb494175b5eac7132815f3f0983b0c5d312287197488a3115648d5a5a7b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/CAENV2548158.
Every Now And Then, Come And Take My Hand
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ec4d479d3e768845a937a82961cbc12b824f5883fce9d8672df91c6f8bce88. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/CAGOO2560047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9bdaa5eb378ae68bc4671c2ac2e8a92ee2e99a095bce9032cfb7411c0e006f5. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/CAGOO2560048.
In A Room Full Of People (I Look For You)
50/50 (But You Take The Other Half Of Me)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb272effc886f80e37707dbd23e7c5cc76a175b546aee19a860a7d595fa25e5f6. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/QT3F62568343.
You Can Kick Rocks (If You Don't Like How I Talk)