Sackman or Sackmann or Sack Man may refer to: People Erich Sackmann (1934–2024), German biophysicist Jeff Sackman, American film producer Nicholas Sackman (born 1950), English composer Sarah Sac
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 0x11c78b390a7f7a9613788def6734926039764d41a0dbc01168e0a30b87391b63. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5d436b2c-6b5c-4701-8e05-340ef7a7426b.json and https://artists.proofprofile.net/proofs/artist/5d436b2c-6b5c-4701-8e05-340ef7a7426b.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 0x63d9f15873ac6fdea271dd53b607587b0fcb7b69721c716541970c98af3b5909. 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/QZNJY2494410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc293bb49438f4aea5bf3c7942c1c30fb53fe8ea900d9058955aab2c317c72217. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/QZNJX2479884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb84cba57f02e699901c122791e418d47e287cb8a51ae0f336bb37f0b3e789459. 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/CA5KR2473805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16d80c5dc45a8c5f0a206b7616ce54493d033b705a0afe4cb284f43b2ac63694. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZFZ72499338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62162eaf5f263a61719510e90a9cea604a8c6974e803b93db3500ba3ee2faf8e. 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/QZNJV2406815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cb2b511014eb490c7a019441afdf08df4a4eefb4a64009aa6b88957ac9a35fe. 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/QZNJV2406816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16ad69033cd795242d9df2679ec5db3e84e0aab055450121baf89ed1522848cf. 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/US7VG2470641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e27b3172bd5366f9041efb19b65dcdaa70d088a420117761f63941fabca030e. 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/QZNJV2406817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e1a6d181f1ea69b494fbd42959b4a25cd6f8fbde24f99f13a10999896056a2b. 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/SE5BU2462573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12a60ebbc8f9afc0eaa3ac6d323a0cd4a099a0d539e6c1fdd82487c8e804c701. 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/QZNJV2406818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x336e0e878c6f3991a9ad76c83dc2cb92e478a1ae89a2cb077df0b8d090b8b212. 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/QZNJV2406819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e92032220d831552472814ec2c64c63656202b8ac7b9f8ec7cedb42cb224407. 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/QZNJV2406820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x221f6786dc7bec08f23b28358e908f49962682bdff13c306527bbf3a65e36b10. 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/QZ5AB2317619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15466f825e9180d19eac68bdd01b43e3829abd638dda9aad84c75b57b62ad8b7. 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/QZ5AB2317620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedcc56e948067adf7a6f59a513c5e6dd18425b6753d537748c0e6a51eb14e90f. 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/QZ5AB2317621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c5dce18726b57f1c09792aea0bbe79bcd8955047c9a4c53e770ced90d48f32. 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/QZ5AB2317622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e70690deff31471adf64f605df2459dba1b17eaf37f957df8770917ddab01a3. 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/QZ5AB2317623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad646fc42ed17c9658d22b4b1df5c91cb930a02cfd1d6ac7e697aaab7274ae6c. 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/QZ5AB2317624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03d9f95fc54dbed6b35497af4db5bf313468bf3b09b7b0d9708189e155a3d402. 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/QZ5AB2317625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66904cc5340952987517d951b34a0abaad0e5e4cecc3a264715e228935c5f7be. 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/QZ5AB2317626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc293bb49438f4aea5bf3c7942c1c30fb53fe8ea900d9058955aab2c317c72217. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QZNJX2479884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d9f15873ac6fdea271dd53b607587b0fcb7b69721c716541970c98af3b5909. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QZNJY2494410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a6e1a8d9724bcd7a2e11ce240e40a64638007d0188bd1d4ba056544703a7578. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/QZTVM2415118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48e0c14dc85037eb571b433e0f343b62d10a0465d227f72ccbfadcc1341ca781. 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/QZW9L2405587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5911d00a66b5cbe02e8e1f6f47d1cfcd169806a06916511df7a45ac3a0bbcaa. 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/QZFZ72532870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d20e44587c6fa2ae37c3da61b99378de043e497d73b45c2019526265bc9bd46. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QZFZ72532871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x167f8ffd496f4f345bb6e2cb85e0f9739e9aab12a5ae8deb746a7c048a48e844. 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/QZFZ72532872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf81f1ada4659843187375c298e217484edee4c12b9d0de0022fbf1ef96dfac8. 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/QZFZ72532873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f5700a98fe5bd07e8399b4c109403c649f8a570347b6d4c99d524324e126b79. 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/QZFZ72532874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc6a285bc6aaa371a74059b29873e810fe389bd6cadf604e344f1d36072f3984. 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/QZFZ72532875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee3c73088342ad86fb33d44fb0ab07626f3a4fbcf5ecbc0d70b32f39bd519781. 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/QZFZ72532876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef6304a881ac583d0d90c3827144c887e9e2879ab5d4425ca6a43f0b09d3d4c0. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/QZFZ72532877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x570614c203fe8028d3b8a695d616d1a8a4e8358b42f71a15974dcb5521755135. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/QZFZ72532878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd25130eec0d2f826e068f23a84471d1a95ff78fd75c956a6f4b23e4e35e43b85. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/QZFZ72532880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1858fdc1f5461b20330e9ec77a968d9743c313e0aae4eb0a8182b52f83d68fdf. 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/QZK6L2544577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5055b6f695851b8fe9d65da9bd032d5a9f0676f76b45e164312303b99efc947. 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/QZFZ72584982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48e0c14dc85037eb571b433e0f343b62d10a0465d227f72ccbfadcc1341ca781. 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/QZW9L2405587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a6e1a8d9724bcd7a2e11ce240e40a64638007d0188bd1d4ba056544703a7578. 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/QZTVM2415118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68f38175764b24017f20fc3216295e864bcba67d481547330cded75f74f7aee. 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/QZW9K2499569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a57304930f88770a236dd8a046c31fc05f4573affcd92169409e480f30a8fdd. 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/QZW9K2499570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff502be115e0bbe4805e414a0128fb339aac29f62119e499000db64ee62d6fb2. 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/QZW9K2499571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1809987e3b2d9c87e8585836e936dcb7def8e3e3b60aa88b72128dfe41de8b9. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZW9K2499572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ab1de56c50df90e6626847651dfbb6b12e1a64268b503f7c9ef2b124fd1037. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/QZW9K2499573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c3da03e288fdca21f9fe6df3fb81265fafe7eaca8a0484cbbae64f0416c899. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/QZW9K2499574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc12bb2b6dea967a65b2749354d3fef6a2361b5c13a8fa4d834a6320974989b. 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/QZW9K2499575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7bca78b69ad39828cfdd555f6748451f3807d4c6fe5b55e6346b7d60f1ee703. 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/QZW9K2499576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42a68501e4cd95796d4d5cd6ae53fc310186aa1e91b56a8b8cd238fb4951b491. 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/QZW9K2499577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc6b908e8d80dcbb8fda2652a85488892f7caaedf6a63a566ed8a98f777c18e4. 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/QZW9K2499578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65e37de5389baa265d120a6e10b12d2e19e3bb50074a6174f3affe8ce6ac1b8e. 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/QZW9K2499579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52c69fe7ca6c058eb7a8c78f49e50931831e4c8b667e3feead7de9aed75a2825. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/QZW9K2499580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa57b5c349b2c5377f71a2100cefab65ca7dbbc54caa3296e0846f099d1b58c37. 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/QZW9K2499581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13a25144394ce19e53309f99c2e31f84a1c0c9bd5ab774907ae1e61f1695a1ef. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/QZW9K2499582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb552400a48b4f5291306df69eb8ff6a02dbd33f1924490ad47fdfc9116b29924. 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/QZW9K2499583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbff0dc8945a4d00bb98501cc852fd91969d62c697271209d60dc9026948c436b. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QZW9K2499584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2a579cc37067a995ae45a26b3b15c45a676d74607327e23951fcc49083f4d7c. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/QZW9K2499585.