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 0xa47fc6e7770cd1832091fce92a1f1fe9f155c20b78eb78f9c740a766ff4326fb. 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/5f199b41-a2b5-4014-8a3d-e2806bb7219d.json and https://artists.proofprofile.net/proofs/artist/5f199b41-a2b5-4014-8a3d-e2806bb7219d.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 0x758a4c9c49c1041fb8f0c6790196fe892068ff34d54a71a7b3b82e8375b6cce0. 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/RSA181341288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc15fa0b4d79fcffbcce6ecf4e214a047a341d8313fed41ab0358e5327778d5ac. 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/RSA181341271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dcd5fd1a994d2cbda1a95c29dc94ad8d2cdf97361e307fa36b8fc8efed618d5. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/RSA181341272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf698c416cc61fc271a32a3848f35c68ccbc5eee1070300de2c0cfff83420ded. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/RSA181341274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc15fa0b4d79fcffbcce6ecf4e214a047a341d8313fed41ab0358e5327778d5ac. 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/RSA181341271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9247ab5560a8a8dc09c917e8ac9a845b47da8eaa933c566656b43e5b8229d3e. 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/RSA181341273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf698c416cc61fc271a32a3848f35c68ccbc5eee1070300de2c0cfff83420ded. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/RSA181341274.
Nikada ti neću više otkriti nijednu tajnu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4481f8ca0413b8803ce68ca662fbef7beb103dad701f2fa6df5e431f9984f002. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/RSA181341275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48d3043e66d5d97fff66f5dc208e443df4946194f41a20e864f0852bfe6d2f80. 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/RSA181341283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e66ecd58e156f8ff549d889fa4a3a8e2e0e0adaebc4e02348216c29371b0f2e. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/RSA281502193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ff7872ebd2f54b68e00fa65ce69d58e23536cb9ed83297ad958aa57b5c872a. 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/RSA281502184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf946b5af54f14e7f508fe150b63323cdb7004162527950272953814833e4ae. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/RSA281502196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb704119836a358460910ebc5bf93857d7193390f1cc6f01feb6a153bdd20f812. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/RSA281502192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3fc330a4bbc181c6f0a3bab7f04da061c40d60aa3e0718190f65bed6527c16. 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/RSA281502511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44d4cacbcd0cd8f6627af58234474627bd9a9217c11b3d36692d5f1a21dfc50. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/RSA281502513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x384711b7047724d85cbd8f900029c08d7423039e20423ed7bf981e6028f56367. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BAA051805075.