1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xb3ccce9634cbea12dee520fda00f17cd01a8aac22730d1af9ddc4459aaf7e30f. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d1bdf947-0f57-4f6b-a5af-9b56d8302823.json and https://artists.proofprofile.net/proofs/artist/d1bdf947-0f57-4f6b-a5af-9b56d8302823.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 → block OTSBitcoinBlock must exist at that height 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 0x4e1ead751d914a1bd6af32dd857df19872f636aeb7847491a38f59d48df80d41. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/FR2W01400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e5cc95f52f28bdcb9251043804e3399b3db2ef6c440f2e881a80e5e0a9fde2d. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FR2W01400076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x116bc3a75474a93c5432f7c35edf41440efd6121b7f8d86c3a46e0e42e7a0699. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/FR2W01400078.
Graffiti sonore, vol. 7 (Raggatek Attak)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab6258f4fd487695a679d4439031d08d12ec0f8ff8d26d82287f681f89ab3226. 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/FR2W01400143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aa092a442f9f0af6935689aff6dd7e9639e5e5a5812936048c206bd25d01d8d. 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/FR2W01600203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56d0bcdd79b435501287c46e7b5a5bbd4e255a161dd8b1b4406ac4fe8d37dea9. 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/CH6541726030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x462b7a23f744e25c70899f43f43d9a19d9db9f14415f79bf4ba6393f63c728d0. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/FR0U91701056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c73cf36ecc32ab7c439d39b48e0976acb60a8f3d37a1dd4eb15e2e259e62fc. 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/FR0U91800156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9605538f8b8ad68d5d5941616fd05e81882eec7f217c98da831c9fbc528b7374. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/FR0U91800158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x587e9ed804682d5879c48509f629bec27ed8b9f34f5bd16e471dad28e08dace8. 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/FR9W12006736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf63c9ef03f2d5c26217e9fca3e4f9d70a412ef428934e097f7c47d5cfdada6b. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/FR9W12009555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf600fb1869dbb9faec013fd796191ea3e96ce20ddb02fb2810c956170a1c5c. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/FR9W12009556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3ce3d912c5f99a8f148a568409eb2f1cf00c8133cbecabf08d1ab9e0a6b84ed. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:29:52Z), 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/FXQ692000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610f8a881b6acbac32e3e0f7c0a08757665d0883dba11fc775865695369b74cb. 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/FXQ692000050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13a259ed98d7115c99dff79dc636930930ea6e9bac88de848be0d4d4fe781a21. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/FR2W01300154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14efb156800cd789d47be944d7d9b1a35199cfd52bf4cf03ef45b8d600e1ec1f. 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/FR2W01300106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451ed9f80b45ca8ff1d6a1add787795e98a2baa2ffc10cc6b9d68c4980b19f0c. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/FXQ692100402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311098336b022ff63b482353d7d8e9c6403d5ecb887f715dd66f439c343c9b01. 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/FXQ692300273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x862e30953798494173b2412509185dce22a32cff69f055b3f010101efa6616ea. 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/FXQ692400065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x238de209772a9f055684dc88a3cb87d3f106a1cfa99f675fb9e84f5570cdcece. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/FXQ692400410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f3940ec9bf530f04f2a6b77931ce84f7aa80c9104a6265f95f91879c959a31a. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/FXQ692400403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9c065c8087640d3a576c786328d666cf36c24598ac096a7b8ffa11393c0c6dc. 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/FXQ692400417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe0f43ab14faaff66b1b812ccd8572997749a8676b584a8ab129642a22255910. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/FXQ692500206.