Ayanis () is an Urartian archaeological site close to lake Van, Turkey. It was originally built as a fortress by Urartian king Rusa II and named after him Rusahinili Eidurukai ("The City of Rusa in fr
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 0x2ef61dd289bb8a2a284ec4e02280b21a69f0931398cbb7c2b83cc343eb79b181. 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/82cd230e-30bd-419e-8d74-85ca214c34ec.json and https://artists.proofprofile.net/proofs/artist/82cd230e-30bd-419e-8d74-85ca214c34ec.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lil Boi (Big Talk) [Remix] [feat. Jack Harlow]
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 0x1fa60a608fc79508b189e75dabd49fa072c2d7282cb28f37a4b522453b1a3e5f. 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/USAT22005431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76c73dbb3ad5a10efb613b34cd0382f16c4f5bec948a0ee8559f5255cd8ba3f. 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/USAT21907613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1264534844831998c558bf77f219a5f846c8a5573427559fbd03fbf5981545b6. 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/USAT22006201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd84495005bddc099f29797e14283626888860b067c574150534a496d740144. 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/USAT21904932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76c73dbb3ad5a10efb613b34cd0382f16c4f5bec948a0ee8559f5255cd8ba3f. 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/USAT21907613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fa60a608fc79508b189e75dabd49fa072c2d7282cb28f37a4b522453b1a3e5f. 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/USAT22005431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5e6b31c00ca808fb27f72c58e149088f3c565057f79a0cd8e9a5894f487ea36. 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/QZAKB2166029.
That’s Real (feat. A Boogie Wit da Hoodie)
Santa Baby [from Still Home For The Holidays (An R&B Christmas Album)]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1264534844831998c558bf77f219a5f846c8a5573427559fbd03fbf5981545b6. 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/USAT22006201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd84495005bddc099f29797e14283626888860b067c574150534a496d740144. 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/USAT21904932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x720b40c2537a7bd6eaf3cae480f24292e04df4ed7d2979ed6896c7cc4e3c978a. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/USAT21811956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca8db563880d63ca344e167c7cf207b86b7c3f3380fe0d1ac64b21fccaeacdac. 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/USAT21811957.