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 0xe211db62fbccfe3a81c8a3b200298cfb4b59a69f9b3a322d58616b186f553172. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9f30750a-9f0e-48ce-9a9d-c2c05249aed2.json and https://artists.proofprofile.net/proofs/artist/9f30750a-9f0e-48ce-9a9d-c2c05249aed2.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 0x8164bc7f998268b0a35de808b2c06b81ac49fd35fe5663f26d32df81c8a2c051. 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/QZWFH2491428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be2b5d6e9d0f53ea8f3e69f609e128929a638a41b09c211bab64a30a8068083. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/QZWFN2462509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0ade6f6ec78e70cb776ff0635c31b5156eb1f685b8657558aaf08ba7a50d2f. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZWFN2462510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bda4e2ede1beae6f23d8b3c77f9dce78d4a4a39e8319326e84f67c69ea68672. 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/QZWFN2462511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6be23a56067dced379182659a0d630d65150d4a927c78a2e214e82a3302f2b. 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/QZWFN2462512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67fd37569eacd1b55db5badc905a8b77ecb1655898e1c16084235f89ff7f7985. 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/QZWFN2414866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedcbbe0f9c7e70591acdd1fd6ade2edb95299c56325ad3d27251ec86e074e9d5. 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/QZWFN2462513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60927fe7982c072ff0ddc413cb7c35c22dd01e92945094abd0dcc668fdceff10. 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/QZWFN2462514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4ec05dc0ad4344886538b27b40bb97b67f32c3cb09075b83494a100b284f99. 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/QZWFN2462515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3969c4594eb748d931a8002b4335a0b112a0a8eaadeaf63c22b37fad872d61fc. 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/QZWFN2462517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadfe8ca411d5edaaa1716fa2777ef2b26dfc7748c0befd9102bd637655d11816. 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/QZWFN2462518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb85f927ee16422669e8df59b70d8e6a30d1ec4e400a7a8503bc1cfa2b36df5ae. 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/NL8RL2444361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63c8aed396b8b0b7d44447ba50e14f401118682d5260d405733a4491b4e7968d. 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/NL8RL2444362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc59487e4937216463fc01a70c4f379655f5f445cd9d135862c760502c7bad395. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/NL8RL2444363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x407107e46c22a617bb7f17c9d2c451d81392507980e6937c31efb3c2c580265c. 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/NL8RL2444364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089a630db136e098650ba25e8e0782ce7ab7518e9b798278a3da20b96e275834. 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/NL8RL2444365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e5151e92b7b3f7d0b6153e30d26b6bcd2eb077e84cfdb3b76a0b3435c8d0908. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/NL8RL2444370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6462e9411a5741dff9b43769273be22f7d374f9f26cda1774e2a84f20df2f25a. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QZPEW2406457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dc232a9218d68d00c2d519ce735ac08679c9c0fee7e3562e6c69c224a35484d. 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/QZPEW2406460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81d5c2f84385dbb3ee6b1b08000883c00b302064540b6e63a6f25f37bef86a59. 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/US92U1908314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30a5899840a42b89122385d381c94db68354810a7b7f187a088a5b93440b491b. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/US92U1908324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c7e79bd85c5af52c738014cfb9419fdee2fa2d495e0517b0b6580c547c5ee5e. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/US6682200029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7bacbbeb31a9978a63ad947570c2eaf683f1d5d1fd2921a45b9c62b27c157b6. 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/US6682200028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc5e5720c26423918f5b7f0227de63d536a6170fabd7c3112eb6d73fe76d26f4. 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/US6682200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18eb3a76245cdab623aadc258d5980126d07409e66ec03d8ab2f4feafce7a1a1. 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/US6682200031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48d13eefa01301ac823a9ef5e63f7f3555f82201e232c9a0ab368e7d1023efd3. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/US6682200032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2478ecd9dd885e54250557f7792ef51c82199c793d43a3b0f52a7e8f5d360e06. 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/US6682200033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x361b52a7e08d9f7bb3acf9b295c156ca54d6f12580b2e44eb20c258400f94dfd. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/US6682200035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7baabe88bbe9de412132bc6f87b93977a9379bdf77efb434c056c38d517bb97. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/TLREW2220088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x171f28038c5ce7148ef6e6415e63a4ee763951de80b91af64457bf4fea2b4e5e. 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/QZFYX2168914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f32ad218e3f65e8dbcadc34cf1487fd4099661a2da2a693d2506993119455b4. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZFYX2168918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a1f922d69a5c217cfdffee9f0996eb894611cdf9ba32b128cf53321ae24f8af. 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/US92U2402188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x390b83970bbb44612143ffdb6f5ae0b8a8b1c8ad6d72908844bdb1dc0161b05a. 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/US92U2400948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64859a4b1bc7812ffaa51d59f269edb8ae78b3d6c7241ce5a0a93374d9402290. 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/US92U2400949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35c870f3a1a89a418262ccad6a867b6aabb8be649954c73e5d6baf4ce39838f8. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/US92U2400950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29d964c0599013a3cc9610c4b766383dfef2edebbce7d58616af5cc64ad044b5. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/US92U2400951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64859a4b1bc7812ffaa51d59f269edb8ae78b3d6c7241ce5a0a93374d9402290. 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/US92U2400949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b946b712f7eb8abf848313ec8a88b8edcd50332a75559aed8321958551ebfd. 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/USANG2491219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67fd37569eacd1b55db5badc905a8b77ecb1655898e1c16084235f89ff7f7985. 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/QZWFN2414866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8164bc7f998268b0a35de808b2c06b81ac49fd35fe5663f26d32df81c8a2c051. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/QZWFH2491428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab575ad1ba2d0b18b04265328b4d1209342b8b7aa56850fc9b46594ab689322. 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/QM3DF2248679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67472ddbbf4749344142637f88b262dd9f7ec4a5a0adfd350362dde946951d4e. 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/QM3DF2248670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99979307981ad7199bcef43617a39fa655f791cbcdc0221701092e988a9b92f2. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZTB72293257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958ea4a760f19d3509f27c92a5e3c0b519c24efc1ca32b924399919bf95f34b5. 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/ITA642100078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19a8cb97a4f3266fba6f97659da1198a352b3dfa1a55b068fb81b1477e5fe91c. 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/QZMEV2173319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3bcfd7df024c26ec96bfc7d33ecdad3cf52eacda0d08d9410b26cd9b5f1593b. 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/QMFME1918971.