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 0x985f69e616a8ee7cebc77cf71029af0bcfa57814be567db643c21084002fb67c. 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/d700ab36-7541-4dfd-b1a6-acc6ff4a9a90.json and https://artists.proofprofile.net/proofs/artist/d700ab36-7541-4dfd-b1a6-acc6ff4a9a90.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 0xf94af37140e5222554de61b7a4673b277493e1f4bd8ad9bf4d1eac9cb41bf8ca. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/RUB421700062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x469a5a17a1216d94108f32d0dd8100f4a8fadeb232ea88de24d391f898a3e765. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/RUB421701234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x643ca18ed0e110b7a7098bfb7dbbee83e0ba26dcc3b77a6c5c60643e691fc521. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/RUB421800495.
Plus de toi (Burak Yeter Remix - Radio Edit)
Plus de toi - Burak Yeter Remix - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde57b392475ebacb92a085251559368bdecc8f43d6443cad682287c723d243d3. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/ITL011800084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04d0ebbf5f434b026283fafb39033e9ff1886f7fc297c9f50b064c9ca1411980. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/RUB422100182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e4f584a632c7302990bf21fdace5058d9559f6bd8f38714af4758e436a6232. 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/RUB422102295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b8da3459d0483e86a54e15db80e36c98b08d7c3fbb676dc27ff385c706d9c3. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/RUB422102902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2579465d4b6bcfe703c9a87288660012da28badb71f896b9ef15fcaa814881c. 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/QMDA62139029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38004961f3843173f0135e2ca0bad9893b4c59968cab45854c897ad62f5c3c8. 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/RUB422200329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce619769a453697eaa1169e7eea91db1f8921a23c01fce2954c282964400223. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/QM4TW2274304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe37a978c13ffd498464e50c3af69033c5c272f77b8d1ef6e13640407f9102aea. 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/USLD91737960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f31a3afa06a15b4f5e22747dfb0a71f634d85d10f1a0d23138c0f899397c972. 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/BRUM72201025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb50702088f53b9eb1adeb7ecc7fac9b599ad1a26b70ce4013d179e5921b3aa. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/NLQ8D2201096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122c57e49efe33cebb50674303d0fa073cc6b7e0d36633a4275547835f6b9652. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/NLQ8D2201103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7456286f44357a37f76c9a7617f3dd9b0f63161be9113cefeb4d9b57c92b6bbf. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/NL5WB2200086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe992e220e7519792753a0fddc5d66f2d11bae013353e3c19ca3c2f681af1074. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/NL5WB2300030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4219bc7fe2e178eda51bc15ba599db802a868b4006808b606d9d435b5c11182e. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/NL9KQ2390098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4219bc7fe2e178eda51bc15ba599db802a868b4006808b606d9d435b5c11182e. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/NL9KQ2390098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x441b50a1516dd380158d8d8c2269d4fdb62a78502091205d2ddedd82cbeeed7d. 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/NL9KQ2390111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x441b50a1516dd380158d8d8c2269d4fdb62a78502091205d2ddedd82cbeeed7d. 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/NL9KQ2390111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4f705c76d73ea1d268b8fca48e3fc1201e3233005ecd5bf90bd7d27dbdc6887. 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/NL9KQ2390144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4f705c76d73ea1d268b8fca48e3fc1201e3233005ecd5bf90bd7d27dbdc6887. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/NL9KQ2390144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dac9f4b4c970631cf721bbaf31cd56d3d96034e2ba32c661b0555b7cf722798. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/NL9KQ2390250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf0646e426c9f696f2e8d8eb0558d8739cd312431fb437193292a1986547b7f5. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEY472570110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a41af43204c237622e88f4e0483ab1af2121fef4b3e9db0978ac86db3605421. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/GBTDG1302610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5baebc262bf363fa5f17798b18aedb899a158fd26e2dcc78d25bf5f72cd5a494. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/GBUR62000779.