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 0x0c1397592ee341c94f14a4c344d3330808b2a2eac8794992974c39be2ced73c7. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/81d7f67f-53b7-4383-a042-246853d81604.json and https://artists.proofprofile.net/proofs/artist/81d7f67f-53b7-4383-a042-246853d81604.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 0x000cdef3ccd742735ac1896c7796b37f093ec6ff4b8b8e1399b4ae5b3dadb209. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USACX1002844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e0f59e13ad355e3603c638825adcdd51bd22e334381779827a122e76211271a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USACX1002833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c7d2fc1ba115ca1cda6673b238835dec0e2849263ae0a3e1ba4c0d1117c7485. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USACX1002836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe51e60bb5f4a5a7e921bd7b94645b6dc2c36537bf616f25a0cf58cdd8cf6db60. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USACX1002837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dbb752289c84ea88d0114840e0e45eccb2a0ed323515561cc1057c650a1434c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USACX1002838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa8bf54c9135c20d858407b2a0f20341199c8e0ed49a220858283bb19f03ebe. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US4R31244823.
Gene Eugene: The Music, The Message, The Memories
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x081c8c9405a0102210061a867572c53fcea707254af86887b8ed3ca8825c19e7. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USACX1500670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffb2600c059836de9b91096040e737059de215dd3e51790440c5003b2553fb7d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USACX1500673.
A Group of Prophets Predict the Pickers' Future Without Them
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa447e6162f1dc73817bac658a7cc6ad082fa1e166c6975db0be532badec4b82c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USACX1500675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e96a156a091bff2f3688fe13c1e901ddb1a84a392bc82469b904af50716f7fe. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USACX1500668.
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 0x3cf30579eb3670139305e88a1b2bec5f7c064aa109e111df699ef13434fb2ad5. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/USACX1500669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3d9efe564e57d0585d3f62180d3b11c804595c0132d15b4258974f2ccf82d8c. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/USACX1500676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc6b0646d290dfc3d79478ab070d71002261aa682f85b30ae1ec25d45e0dacac. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USACX0902508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9161a1d3dd7af50b91d7ea4e97fda5ca8704505e450afda5982a037b0d96f4a0. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USACX1302278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x644faf50e3137b3c220209760c908f1fe36307121f2e6672835ea1bc7b60ce6f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USACX1001831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a7a94a539b6a44ad290d644de5b7a72045757a3ee3d98ae30c662ffaaee4f33. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USACX1001833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77eb945610bc7160c3ac294cd96fd9cbb028c58da1eb18def70db982e12e3078. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USACX1001836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60876e76cf3df26c66d5031fd9a60a36f39e5c84e797be2c728e255413d22458. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USACX1001837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa054f956532426806e3ab5d5ee55c2c82c98a3d1b23491d2837da44c84ad45. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USACX1001838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2da15a287816b34b6cecfd748d8ee29a94aa994ed94d05ad844dfe8a02434a24. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USACX1001840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8af08f3ea6fe59efc2ee1a6fefb279e37420d57edcb4580dc0814882b4d2cf. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USACX1001832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff76bff1d99024d0efa5206c190b04ca8e1948c8d1335a0616c3f2e6e8a1e2b2. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USACX1001839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bc3419e4ed2ade9cf94a89dfac0085b34fd1204d857a7e0a74eaf73204a91ae. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USACX2300440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x909d1cc36d270c518befff1575a6b0a27a4f86071c9fa7fe918cce1a3ef09ade. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USACX2300441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4a029b5da4eb68e402a1edc864f2f699a536a07e5057aa47437eeeeb84a7002. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USACX2300445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4286e80fd795d75f913d595d19faf3200de58eac13dbda94723e4d0f3cc0b175. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USACX2300446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d737022ab7dd528f7dd7d540b5f8d7ac450cf7c908a76a2a9b014025b95d28. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USACX2300447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x086273bd17b442ed53594f745e20854d5f0ea5196b2808964f245e681e0f987f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USACX2300448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14b46d6cc3079a4d1e3709904b185f1bed77f31beb81dfd856ec26a9219d65de. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USACX2300439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75f2a40a48b06f1d3477e37e4a4b5b7c3924eb5e1d10f36e81db7228873534c6. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/USACX2300444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x033852e04e6ec367717c319347e0b2872b56b3723bb397c03cd9342eda62cb42. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USACX1001883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16dfc8288aaca2a45ba25bffb286d077c98c97e3cab15485b980a04aa8024ba7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USACX1001884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x733ef066e359ff9b1922ffb9c0a6ee6b9fbef03cb1bd914702e21618e03d982a. Chain 2 (Bitcoin): anchored in block 957253 (2026-07-09T03:08:40Z), 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/USACX1001887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x150a211d15c31e11ee39ee03576b7111dad46c419d726308cdd4b6ff0fc04850. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/USACX1001882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a97ab81dd297b09758da4846dacbb71d8ffa83e676e520823531ad2c0cdcf8f. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/USACX1001886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40da05839c542e172e110bf85df242e6b8c32aea144960222668bdb81dba5d4e. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/USACX1001890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeddd3051a45ad64c44a158c8031f2bcb49870449ae46e88be988212c5a16143. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/USACX1001892.