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 0xb4ae1e5b8d3cf9faa20af594424ecbe5f4d97dcde4803034d0b76bb5dbde0f9c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ce0508bc-0c64-43a8-92dc-be4c6e9b9a97.json and https://artists.proofprofile.net/proofs/artist/ce0508bc-0c64-43a8-92dc-be4c6e9b9a97.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 0x05c6f1bbf15a5b114f3f61889693683f40449f4b7f8b61cabd108218e5f23747. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:42:53Z), 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/USUM72002708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x398de86c18247e11e4994870368f2e7564cc27ebf8a88b32e3573fced278b623. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/CAUM70600265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf036992b825904ca6398cbd02452447a8620ad545be64547413b0a3cbfd7cccd. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/CAUM70600263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x021a0d01dfad7ce74c7bf48e5950bd57b661cb5c96ac61392f92299aaa21126e. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T11:10:25Z), 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/USMC17807522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x276f1cb25300647bdca5e9d769f6a78f1a7c607a1508b3a318a6889649cc39b7. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T03:28:59Z), 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/USMC17807525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ee79e24e9fddf78342d7b2067ffb2acaf10bd1ec0600a99933977abdd37ed9d. Chain 2 (Bitcoin): anchored in block 957595 (2026-07-11T18:26:17Z), 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/USMC10300316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d90bbb5b8bbcae4564f00f8f03cb58bbdf8b4136e6821e4741ada9e1543b234. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/USUM72002707.
We're Here For A Good Time (Not A Long Time)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf30b8cd47750d76afea03358bcc99408b8be7e51978ad41d7b4b2767213ee15e. 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/USUM70507001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1306a1b94e29bf219d8a837f1ac08787b2634dfdd0d51f8b1836751bd9ebcbb9. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/USUM72015221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc290c8bd7335461b5abe5115f6d211ca55b3ec4421fbdc2bb9c2a81c624de814. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USMC17807519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b810df792124dac73beabb239bdae6ba878e5837d3d7515db6241f67f6c9f4. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/USMC17807526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaade4a695b00208cb008116a6d7b72e276e6cffe4d09fe548d371dec5187b10. 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/USHM20894910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb9433869640eb96f64df4f1e43ba082cc7e24f319043c94ed23ef69fb7953d7. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/USHM20894912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f593b5122e67e588dc5a55f1b6cf89f44eee9f394dc47bf541b229c950fb21c. 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/USHM20894917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f1c89fa531063bfa707e4b4cbb9d7378205ac11f89fe3b3fb83f2516ab045ea. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USHM20894918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31d56d71f4843a07f6ca8615846186a55492e14132c68db5d8d4f65cf5e38284. 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/USHM20894919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f7cbf80c1341bc4ed97703ededde7c0cd92ffe83c051662b00423474bc91b1. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:50:30Z), 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/USHM20893959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ee79e24e9fddf78342d7b2067ffb2acaf10bd1ec0600a99933977abdd37ed9d. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T08:59:45Z), 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/USMC10300316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf30b8cd47750d76afea03358bcc99408b8be7e51978ad41d7b4b2767213ee15e. 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/USUM70507001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf30b8cd47750d76afea03358bcc99408b8be7e51978ad41d7b4b2767213ee15e. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USUM70507001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x977e5cfd7ee1bcfb0f526ba2117c30d9d1fe6dd0776bb90917bc4b7ec677a084. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/CAUM70600271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a459b6aa791183fd9f5602ce9e970b801bb5af2efb445c25641acd86ab8a437. 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/CAUM70600273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72ae520abb52bc5037c44fb227d26d4d79e3feb0d4c3ae52819ee1e25812a62. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T14:05:35Z), 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/CAUM70600260.
Baby Woncha Please Come Home - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ddc1811283e5c05c36ed2c59f4a0b64eb5c29e427d068e9398e6756a90c2d5d. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/CAUM71000442.
The Boys In The Bright White Sportscar - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c010f7192016b32baaf1d954f894c88709d799449a2ee8f9452954b7e7d006. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/CAUM71000443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6699c2e2bb081b23af67dc80229177d54f9795c4eae16e62eb071ad103f50562. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:20:43Z), 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/CAUM71000445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e7fee15b05d7d1955f15c1191b21989aa0044e93bff129d01ef8d9bac135990. 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/CAUM71000439.