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 0x4b87d6e5ba48b955fae7c1d94f2876386f650f46814346be5c76ef687e02835e. 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/e34c2c48-3c28-40bc-979b-a368586c04af.json and https://artists.proofprofile.net/proofs/artist/e34c2c48-3c28-40bc-979b-a368586c04af.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 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 0xcb21f27e142eb7ad242c0a4cfb942f4dde548e1d61ff29abf32503503bbce04e. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/SE5BU2234323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2563b143191d233114374b8c0dfaf65ff0bd1614a5c4ad41ab65515bd5dacd55. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/DGA062257191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcffe847ddb13300eccf72aac253af22613dc4b31a98a1f3e4919947194d9757. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/DGA062257193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e2ebc57f0492b9fb4ab3c9bbd1889cb5ea28edd2f5db96fac760cad6a126f70. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/DGA062257453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb43316bfe6cb1fc6d720d6bf88ecda52505d20f597e07dd1de258d088176175. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DGA062244412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1e53bc5960b2177332fbf17d9d8016e70782f6d10992245fdee5c9d4808524d. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DGA072297366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5686dddb103d701aae0bec06b6f46277271ed0aadfc8b4ed0a3730e5f53b53a2. 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/DGA092205713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce351f67161e16c289b6995b6362e1d4ae07a22907cc90b6a51ee6d93404477. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/FR59R2341259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ed04bd30e27bcb7c1d1b1fdd2faadf0ba68abb0928a97ead744d5a9e9a987c. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:18:36Z), 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/FR59R2341264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a2448872ccb0f4fb3d76d76e7ce82af54cb782184e03b4b7ab513ef12cc6e40. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:20:05Z), 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/FR59R2341269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49c85f7045dd4449acbb8f444af9c3ffb6284dff70715a06fc0d44c172cf0d1e. 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/FR59R2341270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf773c939285c6706d1847b47087e90541afff7bf2ed907f1add0b8374806092d. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/DGA0L2307169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e3d3706ed1286b6bdb7b36886dc19763086c9f692d3c5b0c9c7f104403dd70. 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/DGA0Q2351697.
Helem / Mjalte / Ishq ne mana (Mashup 2024)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x878da7038b7d365756c19fcf109dfbd0a4efe1a3f42eb34d44fb56c0e5a239de. 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/DGA0R2474424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb41f15fc2937da9ac65e75c6bf04da786be6071e29d020f162cce3734d2c95cc. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/DGA0R2474425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82e9bad40576bead0daeaa56f7cfad3d75c7945869fb582f3c2922e90248dbba. 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/DGA0T2400535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ede6e609280a9c65611e6f6694f2b424dffdb2b5e022681def5c8a30a112a34. 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/DGA0T2400536.