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 0xfdae11c830f8be89aec1fe0fde2d82c1a5870d8f27d9c690f727969a42441c86. 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/2c2cb0ee-bc7e-4542-aae3-b5e335a022bf.json and https://artists.proofprofile.net/proofs/artist/2c2cb0ee-bc7e-4542-aae3-b5e335a022bf.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 0x997a9e4ff8d08a616e860ec61a8dadb0896673dc8e5fc50a0425cba00ab54309. 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/SE6XX2344669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdaae592698fcf09192f3289258051a8f5409f33eb1a48db07af8ab0fa14ad9a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBEWA2204667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x130b1747d5df12ed08b5c834a2168447e5a49ef3f6f43ff3a10b20021149c5ce. 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/QM5LC2100289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccabf8c47b0e2f0c6109775499fe486fa28d969899383ed86812b807eb0a9584. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/CAR072322088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccabf8c47b0e2f0c6109775499fe486fa28d969899383ed86812b807eb0a9584. 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/CAR072322088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x728af72e55fe1f61fed7565fe290e6afde10f5a79ca8286eb6243f03cf340b8d. 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/GBEWA2204664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13246177d729e20d18e583babeee8360c307365c245348b6cf554884126c2141. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USA2P2442830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa586dc11de212d90472937a9b22c57b3575b463944be341108c711c4a626f8d3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZHCR2100077.
When The Sky Falls (K I N G D O M Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf29f57a6e4fe8a7be32df5dcb23807f6f276e2250aaea99302ef7617f2daf810. 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/USA2P2240205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d5a0ed0f02aab0f3c5ef88bd534973b455723a69e97ea5cd9879ae4db28e7f7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USA2P2240202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb877f7633b4aff9ae9142109a1e3fc926f6be6f6497d150ec263f376edf5585e. 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/USA2P2112357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ddb296b7b278a3641cce6bafca8e8842b5d7b36351c80b8d61f509188b1c37. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USA2P2103633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ddb296b7b278a3641cce6bafca8e8842b5d7b36351c80b8d61f509188b1c37. 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/USA2P2103633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd7c7cb1fc5a7e1b16d0326c02c71ede6077fbcbbc10a249fd47c8dcc589f019. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/USA2P2240203.
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
When The Sky Falls (Celestial Void Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf41596435619e900171da33bc4111c3b09cf3a0134ab47f03ebb98226d485092. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USA2P2240206.