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 0x8f740be0f8fae13290fd6ff6bb996c6c40f964619bddd9083746bab70b8178be. 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/6d3e1497-49e8-4f99-b9dd-39933854426f.json and https://artists.proofprofile.net/proofs/artist/6d3e1497-49e8-4f99-b9dd-39933854426f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nightcore Cover Songs & Gaming Music, Vol. 1
What It Sounds Like (But it hits different)
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 0x0b216a6def48d7e23997c7518a545862d7e43494a95137314ac0c51547340f5f. 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/QZZ7V2511316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa608a3dea3cc1632c7b7bd2938eb97bb224666427d36cb96716d4596ac63739e. 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/QT3EY2523756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x953cc133ba715854781abe6d074fb0302b9d441e2c41d48a307f1aaed828188a. 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/QT3EY2521759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9225c2b4d38efbec081de2cdeef0bf26d085a796123397dd20c421227ea7e830. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/QT3EX2563767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x690d3c7949da7d2f077fd03efcd86c11b1082df8602218198b0c3dd6a1001e25. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QT3EY2521764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x516431aa4192c04fa26dc68fc3ca4e8ae6abc4ce4211508565180cd51f37e461. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QT3EY2521802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16d7f7511b00a8d9a470cde796875f7305a438b179b11ce4c7dce5958314f11e. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/QT3EZ2579708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x161f25d1ca5129d7703d230ca9814414dbc58323723784ea449afdcc67e33e9a. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QT3EZ2577895.
Boulevard Of Broken Dreams (Female Version)
Boulevard Of Broken Dreams - Female Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x410d15bcd638d64a0327c4b6d7c514a9062d41aeffad39600b3136115c7a3655. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QT3EZ2577902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc20d73c269e5528c2d45e084439f9527d5c14025d62e199f00ee867ca1d1866f. 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/QT3EZ2577879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cbfeddbbe22d8b87691dc386294b29d3274460d847d618976f3884dcbc2f144. 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/QT3F22550184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19c5c270870dd6aaa8424dd0b4a49d3342a22934a468c1125cc9700840f46d35. 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/QT3F72562886.
Angel With A Shotgun (But It hits different)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2acb952e54936c1aed8524ba4f39de0761ec2e28e4604370db85cbf0ed6f21bc. 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/QT3F42519911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x538a819e98df13674d879b15b0c6d9d308c862250ccfa0e522ea53880c30bc50. 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/QT3F52515414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a87ac00fc7097ea6342fc2eaebd377f3862fb09f2c2c1d34759960e4f31e520. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QT3F22550189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41626c884959e1f9304665df99eb8cb72f316ee294b5915bffb4fcb7921245ee. 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/QT3F72589305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b8352e45c2ec994ebac8e0b78b5ddab0a518fb47989437b12ad318dc6fc7690. 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/QT3F72589307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51a34a77c9580a77c01b69c46d8ccc273f324be64512a6c3753a466af4c10d3d. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QT3F92592187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x448587e77073193ad14203dd4d1fc52c02753be1d67e804cf0fb0e09f19968e8. 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/QT3F72510661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fe83d1bfee6de57380ffc07031f73e9c44f15e4374038e2dc81e1eb4aa41e18. Chain 2 (Bitcoin): anchored in block 958889 (2026-07-20T13:24:39Z), 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/QT3F92592467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2958f6ec4268f386ef359e98d10c8b5cc2d321d066d7d5b45a9ea9107abb9b76. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QT3F72589250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9f65c4042c03c47291a12cb9c0e8b56abd07b46e1f04aad693d550abd1eac40. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QT3F72589319.
What It Sounds Like (But It Hits Different)