thumb|A Ford Transit Custom low roof van A van is a type of road vehicle used for transporting goods or people. There is some variation in the scope of the word across the different English-speaking
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 0xa3f88508befae8292063ec27a3d5093fdef158e7b88af60342ab5cc23a8b3ddd. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f423ac18-b92b-4361-bed2-4b8cceaa536e.json and https://artists.proofprofile.net/proofs/artist/f423ac18-b92b-4361-bed2-4b8cceaa536e.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 0x0b309df8a8b628c70a12595b0df0f7ba24e6501cd4c377d44954ed98cf425f15. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZDA82076829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0a5af254c361526b01c6bb6fa3b9bde1520a2b2c8d9922385301d121584ef17. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QZDA82076830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba924a0cec3d4491321ff816ab7a4da14414d1b8fcc91911d0e9dfad8f29ebd. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZDA82076827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e9a562d2c78a339acff396280382dc56b147dbbead548892dcb8086ca4309de. 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/QZDA61933213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49ab9bee8a63bb2b1d970c4579e35c60544b124739c25866d7ec90f19f317e7d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZNWQ2160046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49ab9bee8a63bb2b1d970c4579e35c60544b124739c25866d7ec90f19f317e7d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZNWQ2160046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x829dd525d957d97da2601dffff8e92e2563b64f6dfd87010cecf108484d14832. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZES91870507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x829dd525d957d97da2601dffff8e92e2563b64f6dfd87010cecf108484d14832. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZES91870507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9503bf2b6258a5b173e27b10f32641a3853761cf08b53c4657aeb14eabea3603. 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/QZAPG1730440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddefca35744b021125db6af8e2a034ec412e5768f08e0368f8265c32ed648ac9. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZANL1789918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddefca35744b021125db6af8e2a034ec412e5768f08e0368f8265c32ed648ac9. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZANL1789918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4768cd891d1636cf83e1307d973bee0ca1bf4cdc9e95c0aca8181a0a8211b57. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/QZ9JZ1784422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd25ed775710ab103171c1575315a93760d87e2ff02afc57e09f4e8df2f9afe. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZB4J1872895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4023fabebcdbf436cdda72dec7bbb43b1eca333ad79718aa1265981e76de8f8b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZFZ62028955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4023fabebcdbf436cdda72dec7bbb43b1eca333ad79718aa1265981e76de8f8b. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZFZ62028955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdceb419a76ce39e090f1f18cde237f7f8c8ff07b408128abcad6fd0af5feb229. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZNWU2079091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b38add9f1508939b560de98fe6f1e755d6941b038bfdc5af8275fe4f463247c. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZFYZ2120002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4b5df68b55ef6ce473edcb4d9afce0aa6cb375e5d93725a40aa96703144a91e. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/QZES52115669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b683e722b55c684cdb1fbcdb953f8fc9a225af645638e36edc0cf4331d99b1. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:43:32Z), 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/QZK6P2177016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e161feebd8388b0853ea8c80ea63d08237e2f994c707ed9993119e08f6227de. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/US83Z2421781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8810d194fdad5712b8b812957e667a825b22fe9bc1a8c5f04e31a3cb931339fe. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T03:10:12Z), 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/US83Z2425565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5857b5a8d6a5e2921b473b4647639c91a6228edcc2315e8049d1668adf167bc1. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:37:41Z), 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/US83Z2428333.
Atoman (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ebae5e8fe38b9ea9443ed66f3bc1e324cbf9dc765a071218b6db3142d42c09. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/CH6542570516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe98c5d8b020d4fa4f5028c30715e00674859639436ecb3e2982db4a6d1a2391. 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/US83Z2347755.