Anthony David may refer to: Anthony David (neuropsychiatrist), professor of cognitive neuropsychiatry at the Institute of Psychiatry, King's College London Anthony David (singer) (born 1971), Ameri
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 0x402a35707501e35d0cdb8c56672eb9e19f21a4ff05cbb56ba6e53947146b8ff2. 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/347981c2-e343-4fa6-990c-e710f35c1b25.json and https://artists.proofprofile.net/proofs/artist/347981c2-e343-4fa6-990c-e710f35c1b25.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 0x4255d2460afc00aab0d79128d4679b947ac5c4520ed479a63e3da2f7355c9d44. 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/US06B7800318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0860fa610e9e7edc6c4537584a1125ab0b5b72db639a498875d35601072ae9bd. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/US06B7800320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3cdbc078dc7453eda32d9fbb4f62dc753719087d2562bdb1d6cc9e972273b29. 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/US06B7800322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4255d2460afc00aab0d79128d4679b947ac5c4520ed479a63e3da2f7355c9d44. 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/US06B7800318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d6e83b05ba57804746a73a69f1df8b95acf9373ccfe6f0b5b6adae6ba5817d3. 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/US06B7800319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8efc364e7ca2d491a7cb343384ac6e36c3b16f49666885ce6936fbd948a40212. 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/US06B7800323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ca2a77398eccaee05825fb5cdd4ac04b6631f6a892a4e60da261348db2a2db. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/USUM70817075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0304bc59603697dbf466d477ccd84b8729f60df9a79459b69f744498830ad76c. 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/USUM70810824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ccc6fe3d9bc12dcb9b6c72a3aab518558f747eab8047e1b6f2f43490c4ebbb. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/USKO11100144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d4be5ae15f12a6789627ac8b94c00fcd3196d0d41d0adc62f81a20c5f9abc32. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/USKO11202434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6e3c3a7415ae616097d5767ac4aafb564c883482120b2e253bb8b54fa984e54. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T19:50:27Z), 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/USKO11202436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fa4a611054911968e6ded871275f76741948934283563c5ec722b2347bd0fb5. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/US7SF1656200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeddb359226a1d2145494219b2b6f488edd44fec578510da025d1e88e82c1be5. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/US7SF1656201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x755fd7a89c08afa5bec1dda612634afa57d0a88ae1c9c0b2f731c219f43410d9. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/US7SF1656204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7411aef90069009f65e8ed0fe60d45c703839554b6017d1941c7c790df76e3f. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/US7SF1656207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b67a92094098db235d0bca670839733ec988286d09c92f31a73f8e2973778ee. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/US7SF1656208.
I Don't Mind (Afrobeats Remix) [feat. Mic O]
Hello Like Before: The Songs Of Bill Withers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1af6795d37362b0804ba756d321a47caabe40905960a0db71bfc7eafbc7fcc47. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/US7SF1856672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa0ab9b37dc4c45cb87134472c721a4e04570aec8f55897600ab564b2e05c980. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T13:14:47Z), 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/US7SF1856674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd00d3114855067edc944966eefb81308c0072d73607dfa03a48babd5adee17fc. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/US7SF1856675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dd1553daa66221aaff7ddf824b68101c683acdba40df030d74a86a36c384047. 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/USUYG1719513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64b698bcf20976679d848e270f6929e69851d987164e5af415efdf0f3cf20e68. 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/GBBFH1100034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10febbef29b9fb055e2262ede0145e0f6deae4684f9a490e019e7c7069feceb6. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/GBBFH1000033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc569d7c003d6f4d0d1e85a76645c79dd532a64a8e414faff9dd67ee54d24c3. 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/USKO11202435.
4 Evermore - No Rap Version - Single Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64b698bcf20976679d848e270f6929e69851d987164e5af415efdf0f3cf20e68. 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/GBBFH1100034.