Enfield may refer to: Places Australia Enfield, New South Wales Enfield, South Australia Electoral district of Enfield, a state electoral district in South Australia, corresponding to the subu
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 0xf1eb268cb8b233a09a6ec356a24cb17c45ef214a84fa53cc9de6c62499dcd618. Chain 2 (Bitcoin): anchored in block 953707 (2026-06-14T23:22:21Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7d58171b-a13e-483b-9e57-3307cf5c3693.json and https://artists.proofprofile.net/proofs/artist/7d58171b-a13e-483b-9e57-3307cf5c3693.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 0x4c41b74983eb899c2ff3b64554b395c54b479a8704d8bddf576e99822fce002e. 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/USTC50844557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa270aceace10ce0fc80ddad64bf0a4a870f63cf0a8c4e094ecf7b07f825c0fdf. 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/USTC50844558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc245f5a40adf0672e0822953536502a235b606fd64027f473cdd6563b1e2e1b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USP791000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5b680d02b476d153c74ddf1ffa1c8bc8a29892d0d9d1db802b58f6e00d6f0b0. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USP791000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x013ad567ce4aa203d83601ec532ae4b46ad93575269141aa1ac66d413e9cbd23. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:37:11Z), 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/USP791000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe648f1dcc1459964d7f2518494cc1462dbf420687691b5bc3c191b7f5111eb5c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USP791100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da7cc5a983b849c87ee01e25a315c79633a457bec4103e421644bc009c61382. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USP791100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db6ec2c765185d6bd8376f0752d6e3a34b803af6b53b0fe0677e0d6a812d5a5. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:07:55Z), 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/USP791100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb41f94900c5628cc2b450c3214bdb3e7d3ae07e8837907ffee84599f74c16dd. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USP791100009.
30: Three Decades of Songs for the Church
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdceeea259418895a2b137d1a3226078d7675de7fe90c2cb2f87021b979832694. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USDHM1490012.