thumb|Clap! Clap! Cristiano Crisci, commonly known by stage name Clap! Clap!, is an Italian producer and DJ. He is a long time jazz musician and previously worked under the alias Digi G'Alessio. Ca
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 0x4c377fe782a9262950cb5e08ee87874f65d335c42e9215483a9ed097a960bda3. 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/3f0016da-c945-4b5a-a343-a71bfb25b4ca.json and https://artists.proofprofile.net/proofs/artist/3f0016da-c945-4b5a-a343-a71bfb25b4ca.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 0xdc27aac2b794c93bdb5c279af1f1cdfc4bb8308ea56f781bdb5cc4b9e758efbc. 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/GBTQV1400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6056065891a94e3e4c44dea4af59556a81053e6c99cbf4b13c281d96029a3b98. 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/GBTQV1400038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36070836b520831f19653b1a58f6ba6b9651869e20d3be9d6da7d1b114d65d22. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/GBTQV1400039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38aad5355a7aa1d6b22da2297a5e11e5d7284f3d3d5be9af247cc91fc5f469ab. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/GBTQV1400040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e443fc5b8adc1bfd538c974d6b27fe0a65428c67a63804454e2d8d6b0920c72. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/GBTQV1400041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9616658c8a29bfbc979e933c0767001d6e239cdbee8b37bfe43bf47f0210f6d8. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/GBTQV1400048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6cb3e9efc426f787bd9c4fbfdb240763e2d87b2ca0e4cfb8166256239dd50bc. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/GBTQV1400053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda9d8cc8e0f9034236bacd5506bc55e38e5e20fd45dc6f059c211c6091106597. 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/GBTQV1500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x103ca4e4f03d4fb1a2af09fd115ebc19821b1a1ab255524cbfbc70c43a94ddd6. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/GBTQV1500018.
Tales from the Rainstick (EP & Singles Collection)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd4292a0a0a564f9a7210c2f1ac39784e4474e346b1321eff50021cf3524ee4. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/GBTQV1600036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa2aed501eb76081716cc4a77d38039275cdbef4ef6b12c1fe4a5b4ab1716d6. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/GBTQV1600039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b588d5dce87ccefea7fa5151108e9cd40a692d0ef15baa109e376506906374. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/GBTQV1600040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb30cd10d50f0388aa4ea4f234ffebf1e96426b881afca4aa2e0e8bf2c217f339. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/GBTQV1600042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f871e56e36c58e33fc517503359eab12eb4bde3b13050476d2efbee3f55aa2. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/GBTQV1600045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d48dd20bf26ca1cf8d6e332a89c817c6ba9d8ca68bb21c30222129b432e9649. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBTQV1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f0149876d3d5b3733dafdad25dea0467baab74734bf7466d6da15c9ce2112a. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/GBTVQ2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50808b085c2a45436cbaef58e381fde6ac1b7b9567d7038921afdffa2ba00e03. 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/GBTVQ2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37a194bcd6af2a82c97fbd57f0738008492ad7aca8cc8232ab1112d9ba93c4a3. 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/GBTVQ2000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f1bef93dde583195b8d4d600a3a85da295c666fe8b87d98d60eb4438e47e96f. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/GBTVQ2000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7613d32b54d2404cadec14ddee670c2f11f52f0590948f809ab86c670e356d66. 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/GBTVQ2000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae801a4f80d197edd9d92646ae4dcfd232459118ef49e5ea4c48cbb9fcd83c06. 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/GBTVQ2000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e4c4113f245ee77fb9d2d5208b4f30da09716c4a9f1ffb4977b7a10d4e31d4. 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/GBTVQ2100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e4c4113f245ee77fb9d2d5208b4f30da09716c4a9f1ffb4977b7a10d4e31d4. 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/GBTVQ2100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b438f89a1f808a3e10f59e34fe16f38ec607f29ec12e3069e3760664b1c57a. 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/GBTVQ2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb71ec6a27ac50e843881fc5927f2a866991c18e278e124e0c087d34288b2e7. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/GBTVQ2100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdab41f2656c418353b8b22b2c72b513b2341c30344222eea09a7dd44d0b96c7. 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/GBTVQ2100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c330397f9df3bb483a6f53130a749b257c5a33dfb1dd56f76f7767d5813e2d9. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/FRP7S1800080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a5a76b87bd09db3fe706b79bb0180e854634a2a82aa3dd63048ed1fc2c8c4cc. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITTV52002109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec256b29ed9ba5f850c73d6ae9964dfd274ad0be7b7cdffbc456afd47002f0ac. 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/DEEQ71404501.
Gilles Peterson Presents : Melanie De Biasio – No Deal Remixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be3bac31542858aa5a117d8b21258f844350ee32349fd460d1bc1fba2f42402. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FRX851400453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb4f1ce4baa795609b8ec09f9915eb3fdfb1919ee82cdbeff5d230d04aec4226. 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/GBTVQ2000032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe23c49d4830fdf841f37c51980054ae8fbe2035962ec9845127ed73eef0046e. 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/GBTVQ2000033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d48dd20bf26ca1cf8d6e332a89c817c6ba9d8ca68bb21c30222129b432e9649. 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/GBTQV1800001.