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 0x7d770fde8665afb7bf63f2f2f7ecbc9d728738e89329e74d323fff1126c15a49. 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/ef2fe922-b624-42d5-81ac-b6a9a81810a6.json and https://artists.proofprofile.net/proofs/artist/ef2fe922-b624-42d5-81ac-b6a9a81810a6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
8Dordinary, Vol. 2 (Enhanced Version Mix)
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 0xdcf2629f71028387eb278bac24a498fbbfd0d3cf6f1570d97f9d5d0975fc2d52. 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/ROTHR2400090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac7d65d170dceb244b764053a7f50f219f411e304712cb5198dc6c19377c7fa. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ROTHR2400091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5cab292d1a449cf29a18053e7d4bf33a4e83ec413186837832228bece93eea7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ROTHR2400092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2386559bcefe0528c5a85480b6f272d0b21890ea575c1c2a99ea28a05241d929. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/ROTHR2400093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38746f6d75a99d0e3eb2104ae856d938bd48ca4b68b612b809ddf3a9b21476ad. 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/ROTHR2400094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a94daca71f1d624d44564d046c49e643be6e24b01887c008828a91a3d274731. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/ROTHR2400095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41592840f27d2c3f648ce2eb27959e29470c3310bd3606972299b035a0b49478. 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/ROTHR2400096.
Thrace Music Vibe, Vol. 1 (Oriental House Mixtape)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f7d73dd04603df1b6ee1086c7e7433d9177b0d9c3ca76673a00c2bdafa03a5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FRX201731551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9dbc405592c270527e610743d978faab06a2bdc18fa9e1d860b4d5a27a4b471. 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/ROTHR2000083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c559a93ea1c24699d5196612837bc0a2e7a474b21b123e232be0834f360edb. 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/ROTHR2200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde4fe2d6c5f5f364217facd05cbc3721eb2f65d44c4f69113cd52ea7d6393898. 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/ROTHR2000087.
Lost in Istanbul - Pascal Junior Remix Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dbea831574a2d8d691faec48a85045e3ff30c31cc618631cb59e6c5eb9afcf5. 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/FR59R1838335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5d076a324bb91b8906cdbe079ceaa133adac8620a72a854576d6ebfcb9923bc. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/ROTHR2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53aebe80bee22a46102b48c033b7c4c6da0a01931ffac005c6666079e50a9bd1. 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/ROTHR2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf559adfede3ad43be3b17efdf5406ace127c271d09699caff19945ef9a94ec4f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ROTHR2300034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8c8bd444cdb0870ecd8df8559f7d839721f82069587252219013b2e495991a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ROTHR2300035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30656627e30334270d9430b45e03ed01e3145961af2a207b2202ab80c34323c5. 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/FR96X1962587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeba45499ae6b5844eb67f93df6488eb6f37256952842049c8e6a004404b0347. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ROTHR2300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c559a93ea1c24699d5196612837bc0a2e7a474b21b123e232be0834f360edb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ROTHR2200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc57d27fbc99f7dffc9f2aa1b7b49b6354d69e3c3f59eb33830034e446e53ee7. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ROTHR2100127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4a1786ffd3fc0a3d0b9a30d52c46d061a0ae80fd461e49e2266bf5e6bf709cb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ROTHR2100116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72252457d574ab0f026ddc517a72b50ebb1bbe581c276e5e6d2826a1c195f950. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ROTHR2000097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x319899dd54fa93e2c8520ede16d2e5f908e65262a7adfd211e987105597f0243. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ROTHR1900082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30656627e30334270d9430b45e03ed01e3145961af2a207b2202ab80c34323c5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR96X1962587.