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 0x96eee96ce84dcc91610c8318a6ae33c98114a2bc358e1767381016c3a6398913. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3811dff8-7460-4583-a31a-cd7d86468089.json and https://artists.proofprofile.net/proofs/artist/3811dff8-7460-4583-a31a-cd7d86468089.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 0x8b126c126ec840f2c820541e2a88c0ea9f84fa29f78352241706b12318a8431f. 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/QZFYZ2455308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x615fa84f05176b1cb56ddb15671b4be8300273c0825c78b3fcbdde6283985de4. 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/QZFYZ2455309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca8873b18806ee735865554a0c6d89d8edb62de0a5190e10f0a0e58f5d7f842. Chain 2 (Bitcoin): anchored in block 957025 (2026-07-07T10:59:31Z), 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/QZFYZ2455310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c18741d6c16d36fac420c2796a54e13d4deb5aa02553a4d04382e93533a270a. 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/QZFYZ2455311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9814e83351503c165e20777ef73d513fa98828bcc233952c8b367c2e009ddded. 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/QZFYZ2455313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f81a59fdfb22ef11ed487ec55269ee11f0d7effc98f5578b4c87d082830e8a. 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/QZTBE2309935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc2b0e7a7099ae21fae6f5a64852e0e984c1ef379a1719e0f189cbc9134d5e9. 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/QZTBE2309936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefb73d4985550077be0276cd85138df9928122949bb340f814c1d195366634ee. 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/QZTBE2309938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a8afc94441e73d4ff3560e0afea5212abcd24fc7ae4b5e7f2d0b4e01edde56. 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/QZTBE2309939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f763f16720715cbf32ec9fdbc59f884ac30287268720779b81a6803cb851e41. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/QZPLS2450489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649e2870ac37f41474a68c934c6043d7979968732f94e70de5d738b6410d1ce3. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/QZNWS2406799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaf99364ff42cdb7cd70fdf7076e9c783ccd9a1c98d441ddd407bfdcd3a6999f. 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/QZNWQ2496852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18426b8cbb0fac1c7a4a535dcef32e8b7aba09a6d0fa6cc4c8006c6a981ad9e7. 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/QZK6K2470016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d2d3010b5554eef2bcd9becf2b38793f4c196f9533e8a338f65d42bce188871. 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/QZK6P2402409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe8396774b2e93c04ad8c35bf68c47477ddefe78fc8add9405aed7d07782b7d2. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/QZES62434015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0beebd1963aada5b09f46992547ac6fc18677f253a1d1bb4934a94638c68d1d2. 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/QZES62434016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a9b2f8872f132144e54dcac121a56aa80ce4ed1450d250dc28cc62be7a846fe. 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/QZWFL2317711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11665e747b34ad5d000cfe452aac8d6924ff3c7a216fa08ef774c369e4257ce. 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/QZWFK2301639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc2bcf9e3e19bddbc0d2d5b8d4f1b2d98d27ebb36c3ceb256e4b552f7813aca9. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/QZTBA2396305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6393278f32eca0f8089caac04fe5757532b13531712e990755a52c15eed9d3ec. 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/QZTB62376425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bf857e544f9175344114dc06130d18284798da7bbf4ea808d14e4137b72a08a. 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/QZTB42322375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe2df424dea0bcd38fe518bd5a43ef99ec4b9adcd358d30dbed65584cad7bae0. 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/QZTB52354336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2554548adeb917cc701ed03fd3059dfdf64abd44cfbe4b8391300497b57da553. 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/QZTAS2337283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb9f321255d4bf6914eaa29efb1ae0017fae08428a009eb7a232cac32b02305. 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/QZTAS2393243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ebed526ebcc290f74361a7502cde50d48a4c303a0f2f3f434d1a951ed0d633. 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/QZPLR2388222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8927c8e9e872b7b797f169c02d6dd3963850ab29a552258a3c8ac57e2ad3bc5a. 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/QZNWR2321174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c92d48535ce444091f7b655dbba045a0422b789bcf811351caf6552c0eef375. 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/QZK6M2356425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7be1777ab4c39661c6cbd001a9fa61ae1d16d8668b0204b30f43f80effbb3c2. 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/QZK6Q2392034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f91a1c6cf1a68d515fb8f8a39c6643da6d50dcaa69394b0b94f4d45ae31547e. 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/QZHNA2314306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc10406608375f1938055f413e7c4c6defdda5c6ac95dae446063482ecc349915. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QZHN72329001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaffc4ae6347b1e97796ed8e90348908b0115032512239d8c32cf9a03fca4364c. 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/QZHN62336670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0176c8410226da5ba9c20a5fe4b89960056d8cc013ba4d9be9972219d674411b. 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/QZES72399952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x291a5fe0b9d483631788c9c32e9fbd7b39cb0bc276a9cec2d0df61be7c73258c. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/QZFZ62385789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb076071e995c86297b69850c949b11a4958503f3578e207c696cf3c07c43b3a3. 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/QZFYX2310690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x865917b33e41ce1cd13e97ed459e6136120b1cfc1f17df499e14dd395fc18c8c. 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/QZTB72287722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2634bcb682073e8e814b17c0db069df609cb9593f1a7591daa08fd0ea856db06. 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/QZTB52229160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc42187cc57dc33e1dbef057b1961fde4cdc6efed75733cfcdd495d5747e48a67. 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/QZTB32206668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc04b22cef2cd8be0790faa44a1972f6816a592254aee11f5b97cff75b4370bf3. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/QZTBE2467367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00749d4d2576eae13a625af6345b966303b6d4c401c872c53d0f126594a352f0. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/QZTBC2411526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc081f7330dca974a5e8f11aaf2640e6afd635e4d4fdf48b84be0e99addff55. 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/QZTBC2411527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81eb4509f76aaca7077da8eeffdc1e1dd8c027bca35f31fe1898a52da4e02e3a. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/QZTB52414163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe48ebbcefea324cc555d46c3aaea8a8427ab3dd7394bc4cf33873f337daf412c. 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/QZTB52414165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4cab0f523b1e0185e2286a8db5088d45a7d3e430496891628733d384cdf16f6. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/QZTB52414166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97efbbc7c032b499c4c8dec74d555ccf2c61d9e995dad13352f7ecd358cead15. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/QZTB32449769.