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 0x937f2fdff2e2f1a7eb0ba4e4654678560396b7b27f532b7d1d1243dce87aa11e. Chain 2 (Bitcoin): anchored in block 953684 (2026-06-14T19:51:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/661a446d-d461-411c-bb97-7653e4395d6c.json and https://artists.proofprofile.net/proofs/artist/661a446d-d461-411c-bb97-7653e4395d6c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Break Down the Door ...It's Opening Hour!
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 0x9be03579747bb9e5f083523871788ceed477b2b025a89ea5ee5ad1b146f702ce. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/QZ6K42500135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x026f9dd3af4e021f0a46ac57256e524336a4ac606b7806886a8a5326dda144cf. 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/QZ6K42500169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb14cd0042d51830cd5f67db4dd71242a8ee01027b7cc6a8c0670247b2b487cb. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-21T08:37:46Z), 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/QZ6K42500170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d969c904a69dd643febae1adce377a031c68eb5a84cc1df47c8f828c94c1d18. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZ6K42500136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x258c3c343ff0b237cff37310bacca56311e2a76b517a5a618ec6af65a05eff97. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZ6K42500137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98c1a819b9806248082da1f64e67a9b8cc4b02278879591b9bb5dd13dbf4a32b. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:40:47Z), 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/QZ6K42500138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c9170938d5e14964457a8a6352ace65c0459779d85bbf55ae3dd6b2944ed637. 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/QZ6K42500139.
The Hammer & The Mace ...in Slowroast Sewer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbebae5db77a7ab57090bc7b7738e6ad03b5b1bb4ca831cb8dfb08fd3674f90c5. 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/QZ6K42500140.
Here Comes The Bucket Brigade... Beat the Bossbusters!!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78a75c8b650b172a5111fb09de1e303834ca654a20db0fb238099e5cf213c499. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T07:59:32Z), 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/QZ6K42500142.
Turnin' Up the Heat ...in Cinnamon Springs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90be554599734cd3e901b4bc1e8672ce0e58ef660bb0199d4eecdc5119ffd64. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:18:34Z), 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/QZ6K42500143.
Electrofunk Central ...in Bomb Candy Mines
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceed9b4a470e4eea2617f610dc0d220532157e224e9dda6001d440b943a7f437. 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/QZ6K42500145.
The Children Yearn ...for the Bomb Candy Mines
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4217a772e5e6c9a4627de4c1cc229258dbe6ed8dda2c09fc5c1e54efef8682c9. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:20:22Z), 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/QZ6K42500146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x083cc4f0713df682eb7bc2b75577f551f5bc006c029b1ff4d347ff3ef0b82248. 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/QZ6K42500147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x188f97a3e07819687ef8882e4cc6f08f52dd3ba71cc6bbf4fc3bfa7e2f3d1f31. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:42:11Z), 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/QZ6K42500149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d41ce69f5a4cae9d772fec39568a98cb58ed46a520498e878bc9e12f7959256. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZ6K42500151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x137b55a1f36f31b66fe8bfc7140df28d9d8a2deee862101e6131555f5b43609b. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-20T00:27:48Z), 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/QZ6K42500152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaabb890275fbf1a4a71a0b29cdce386411d79e98047e158558ddcd79ef7d3f7a. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZ6K42500153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88ed57e58031d653dbeec9372813c1ac31095ec2e7fc804bfef87600dbc11f98. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:44:08Z), 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/QZ6K42500154.
Artificial Reflection ...in Crimson Factory
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6f36604639da7309145da5eaae8b58a57385b91666090789f868fb261b1f07b. 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/QZ6K42500158.
Idle Hands ...in The Mysterious Glasshouse
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x815e4a523d36e46c387c8a6a70c2d2a8d7c3bdd75528b641b6fc1962cdc0cdda. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZ6K42500159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd846d0d9bfb1b1e058ddbc81f0a9062e07257df415c8d4a2435cd22150cbc3c7. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZ6K42500161.
Oh! ...A Dead Ringer ...VS. Ring-A-Ding 2!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b6f847f74ee48d0ec9c428140d977fbb0717a59d04c3ab1dbf8cb6a944c267. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/QZ6K42500162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75341261c329babf85592b50df738400bc318cdaca7565de74ac6bd7988f5a0f. 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/QZ6K42500163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8546417fb404639e0bbded1e5adc4f678360cc015504ffc0524b9de4fbd9b61e. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/QZ6K42500164.
Takin' Back What's Mine ...in Hell Manor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cbffe108034c59470aeedec6fff45386e5b8a8afaa1a30ae69446762251f11f. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/QZ6K42500165.
Dance with the Devil ...VS. Satan! (Presto Vivace Reprise)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd60d97e9785bb0d3c08ea6b16d11f63c519cf8dd162f97762d75e7ff96a45b5a. 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/QZ6K42500166.