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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75cbd3d1bbb419a56101cd9c4083c2b92e0370a6d4d1956a83e67f18c1927e93. 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/def1dd31-de36-48ba-b4f4-0a1ca5316822.json and https://artists.proofprofile.net/proofs/artist/def1dd31-de36-48ba-b4f4-0a1ca5316822.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
We Out Here MMA Show (From "We Out Here MMA")
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x773542f993f1ce98b61436717cbd7f68d586f3081be2330ec9ec8ecca68fccd4. 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/QZ5FN2400791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8934f41886a5901078bb9bb91c2be5bbf5765c8228a3cf5d2784366a2d309513. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/QZ5FN2405715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1ad1a221e8633d9c9bcaf45fa1d6842145ba48e8bfe646af15f1420cbbf3dcb. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QZ5FN2415809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb31f6a1497931ea83eea03b3419a8a463a118529da026033bbc57653ae7dde2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZ5FN2415805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0741f2c2a0c82752b4a9284fef3e5932f28f41e424d2ce5d708285a203ef2b7b. 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/QZ5FN2415812.
Against All Odds (Take A look At Me Now)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8115442b2ce0534e480a39c2b279f855fae55e8183120fc388099e1b2c78796. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZ5FN2480060.
I Still Haven't Found What I'm Looking For
(Don't Worry) If There's A Hell Below We're All Going To Go
When The Going Gets Tough, The Tough Get Going
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9921f829ae403e19e7e3a100ec08658a5d609eec908db216ffcf5e03203246a9. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/USLZJ2426000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23f3d049937905199b8f6815e284d88dba7bca876285a23ab2b1caa7d5d48ad7. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/USLZJ2430001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf851af888f903a2960a6e0e5d7731294bc28a1e8de036121625bd0dd6d2f1c4. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/USLZJ2474823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4de6d185ac814577b909ed063d8c7057144080802e9235d942591d1c9a26773e. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/GBRKQ2415950.
This Ain't No Place For No Hero (Short Change Hero)
Total Eclipse Of The Heart (Turn Around)