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 0x61b96c97e601a2e647e1dbafa3acbd54a5e2365aeb63898e3a926c195ef55f1a. 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/57b6a0b7-893f-4f86-9d46-68a76c944f41.json and https://artists.proofprofile.net/proofs/artist/57b6a0b7-893f-4f86-9d46-68a76c944f41.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 0xa22f0cdf61e76b32d0781ab00445e77ee725d1e3bf745c3bad7e69fd34b9b74d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/NL8NY2300073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39c5e5c070a6f29c6dd67c8ec773dbed1e002e26511da5794702828c7d8a0029. 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/NL8NY2300074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c1068b0118409894072673a7744a8a7b695e4fefd147d99c8abe39e86c1ac0. 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/GBKQU2232890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05fe8bfb03f8f3c0155906e8defc3c4c4a5ed4e767342e71c8d3d471b1314fe8. 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/GBKQU2332935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01843d0c47372f976c681baaaf360ba817b99d669dfa9e4358d04e1aeeb35c5d. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBKQU2432723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5709c9b1e5bffb257547135bafcf09f060dd6a69f865a2fe53f3ce3aabbad17a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SE5BU2520391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x893103f4a8ba69426402dfd704c528eb63dd3b69c1430983921fd69446733583. 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/GBKQU2362767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc052d9cea178e6402bc63c723aa33a0ad78aabaa8422467cefeadf0e1cd99d70. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZFZ32522782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a8de44c334d5df691abbb6526606c12221e2d922c85a469410f8974968de39e. 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/QZK6H2455533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x580bdf2413f280df0fbe4f5e02a543548403768dd0501dd34212033f63e123b4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZFZ32522783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1975c98266e727f04397039133fdcf367b35bd8d9280dabfd2c004e1274542fc. 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/QZFZ32522784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c91dd4657ee7db7785f4c02bc788aa2c24f07ff8a10728fa1c413cd35b85538. 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/QZFZ32522785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd79af8c4e2711135f61a08657b21040343f4a28319b2cabfb98681c8a7c9cd0. 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/QZTAX2441034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9633516801cd1fed9076d9a3e4c11fa7cb7751b473176d40d5da01132835fb. 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/QZFZ32522786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd79af8c4e2711135f61a08657b21040343f4a28319b2cabfb98681c8a7c9cd0. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZTAX2441034.
Creepin' (I Don't Wanna Know) [Afro House Mix]
Creepin' (I Don't Wanna Know) - Afro House Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa14ce1a790d339d1ca8298744ac5d3ab3a4e55e666a0740270beda965d7edc3f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBKQU2455817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a8de44c334d5df691abbb6526606c12221e2d922c85a469410f8974968de39e. 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/QZK6H2455533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1ed17d59a932fe7410583ab5b0d8672db6ec4a0b24f923fbfdb9161ee83b1f1. 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/GBKQU2358820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2af17c4024538a3745ae2fbe4fb456d6a7d3f2b4f52ebd0a6b3200461c11f9ca. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZRP52269921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5fe0120c0efdf5730db27341ebda78edd525d47b440f392c025e85ce077043. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZMEN2205386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db352c79467f326c00fcbe1224d2801e9a0289bd70671891f57c7aeff380d9d. 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/QZES82213397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4824590421b97538e4bd5ce259cfe8ed60a4ef9afdbb2098e85c85547282b62. Chain 2 (Bitcoin): anchored in block 957034 (2026-07-07T11:52:37Z), 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/QZDA52298803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c4a7df11891e42b61632954502836689df775d9a85418490dc2e9e2949b032. 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/QZMEN2127455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d91d1587d4043947d981f0345ab3c4e92e7d0205955284e786f0f9f4abd77a4. 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/QZFZ72170605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b8170deb269ef5e4c32dccd1371208122acf0d2455ad604cbe483c897bd276. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QZFZ72170606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x690edffbdf679ed92eab14721d6029624d4f13244d9dd55563f42b412f713adf. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QZFZ72170607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3b94cd6e7a7b3f4598c8ba816fe3fe6b20db5eefdf08ac3c795113d6ae74aba. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/QZFZ72170608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba1794e5d0422349b55e19797b5d978bb7c30e98058ac6a095e6f103b0edc1e2. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QZFZ72170609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf8b17e81b92669c7af5b673e38d75bf41ecabc7e935129d0ce19cde1b20ab1. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/QZES62018863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe0bd4398839458b808cfdfc2b376bba7b8a63773d3f880c1660a61d6d7f1ec. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/CAQGF2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8a58a90966f7755b0a832cd7f1cddc5f971bc928c93bf7c0fdd7776e74914f0. 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/GBKQU2335815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x748f961b4ef6c4c779764f24664a23bae2a04d83fd33e810e00fdde881e47c0e. 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/GBKQU2191253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2461522a8190a8cb164a824532c75f887623f7b02d3c298f0ca212e8ee165ab. 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/GBKQU2414920.