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 0x46dbd939799a8776fc50fc2a1288c7a190e9626026a34f8185713fc5967bc6f4. 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/636ccdd8-bdd8-4bfd-a362-41c67a88fde6.json and https://artists.proofprofile.net/proofs/artist/636ccdd8-bdd8-4bfd-a362-41c67a88fde6.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 0xd36620b82b09905c2b0f3b154eee9293f1634a9618da89d1067be59b995781e0. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/TCAEA1845167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x706b3cc3e301c2e8ae628f3ee89de8f48814a6caacd54aaaa4c045033b5bd811. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:01:51Z), 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/TCAEA1845174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17df4bfd24592dda7dbdd4d8aa4fb48c78ff0dd4a1565ba0db3e0635ed3124f0. 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/TCAEA1845193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa307b21f2ae6e39f623d092d57442170e5facd3a938a94d984b322035cd0c0e5. 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/TCAEA1845199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4f1487fa4ed000107ddd29ba45ed35895d4098ad1e8349799fb5b3c3d761007. 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/TCAEA1845207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0359cc689ecfeb10b217dc18f12b7c8d65a15709c87fa8cad6a9ea8a8478f9af. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/TCAEA1845221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba14fd2c740ffa88a6128d17e18faba3e568f6961a96cacde02606ef095b150. 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/TCAEA1845226.
Speakeasy (A Lockdown Session, Live Recorded in 2021 at Home)
Number One - Live Recorded in 2021 at Home
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf5d581b4f1468d7a35e4de57a6129ee196941d08074373bf8926ffc7eff9761. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:16:53Z), 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/TCAFU2193317.
Pandemia mediterranea - Live Recorded in 2021 at Home
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a5e213ff4ff1b4137d53fc4156905e9d505c0c78379d2516cf68458189f795. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/TCAFU2193319.
Rendez - Vous - Live Recorded in 2021 at Home
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfba80e114810983497d98339dcb822739360cf69e797511e051be85aaa0316e6. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/TCAFU2193320.
Amico mio - Live Recorded in 2021 at Home
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc79d09dcc6b24d21f242d39225a2b3eb15fd533924c24be10c555953ae0b92d1. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:44:51Z), 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/TCAFU2193322.
Lo sguardo - Live Recorded in 2021 at Home
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc9911f4ca5cd49e7fcafc21fe6ef207de5ec029624e3b56374cb474dcbe69c6. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/TCAFU2193377.
Hey Baby - Live Recorded in 2021 at Home
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e7e8af9480a9cb1d261aef7ba62f8b18c9bca9ccfbfc4f3a818703c8d8bcb5. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:46:38Z), 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/TCAFU2193390.
The Sheik of Araby - Live Recorded in 2021 at Home
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5fbbe9e294abf611aa339818f41fe617345c063210049998d539986651be9ec. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/TCAFU2193394.
Going Up to the Sun - Live Recorded in 2021 at Home
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10961c5f6d5d7904d81161e8988f95ee01251fb78e0bb5ae89e4637e790245be. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/TCAFU2193395.
If You Want the Rainbow - Live Recorded in 2021 at Home
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc04ba3a148533739d35d669c356728a76e757e3337244d7eb2c4f901f55a037. 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/TCAFU2193402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0f39a24e0ae72b3d0e474849c88b5d0246d43403f1fd2b18f6a728f7165b509. 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/ITPBU2209703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcebee8a2ecb0aa019239b5a2c0882965ddef9c0b0a23f4295152932cddcbc10e. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/ITPBU2209707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d1f0ca13a817155af4b9987091a276d0ba5c3e90bf3bc430c10d8595ed86ed9. 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/ITPBU2209708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8ea1a3d02557f643a7c4c80eaeae0e69e0cbd31afd361568f2f0ffadb7fe945. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/ITPBU2209709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fbf16d654bd3be082d7e17cfc60f1a93beb3ce8c8244b0aa695c7afaa4e5af8. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/ITPBU2209710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5072b2dbf1ed54bfa294fb9b6462f593fb344bf01d50c772880e9db7198bead3. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/ITPBU2209711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x087dd93b39716ae7327e79f8257801370207839051b9b40886f39c8f6ba5d848. 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/ITPBU2209712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31f702faf51309afd1e9472e680aa2d9f94f9b450a7576ca37009e3a4229bcb8. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/TCAIN2453060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3513f3761986d2b05dec5adcdd1d6ff6c2b29c84ccda8f45fe782b5edb9165b6. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/TCAJJ2589037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x003c09f737330047a2625d9ab61986a18a96a978cf6ab754c28c86568e8d9c8c. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/TCAJJ2591543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb26d2e9a71e1cae31a45dbbceb43aa8ca464212104a224613412252c2e1fe613. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/TCAJJ2591596.