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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9690c3abfb40ebd53f2f2f6b50c3edf2b2ea03a2df71b198336464457e8f815. 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/3b8e8e4b-fac9-42dc-8d1f-65533e241b4e.json and https://artists.proofprofile.net/proofs/artist/3b8e8e4b-fac9-42dc-8d1f-65533e241b4e.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8578e2f6871124c21d8f03115bdaa815c68c821a9e3a5e9058a63a257f2b87. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GX5MY2348510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe07e8e01c5878ed8527822802ac0349368a8b80b68794408582be518a8b1fb. 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/QZMHK2304619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f92195349444f4a757f3c2afeb9cec37d1cedbabcdc4a3a82141a41bd7d4be5. 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/QZMHN2337274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd7393735cec438d54e7965755060288bd650368151a380853aaca3eff6e66b1. 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/GXBDS2364694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x308c057c1dbdc1e89a125094ca4a0b4e6d065b4978de7932af1d073d887b8141. 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/GX8LD2355755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fee34a2ed60926b712135f2283191dd13763e9b34e6cce264a6c2702d65640e. 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/GX8LD2448713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf032b3fd54ac92aae92ccd10a9f28a7efa698da0d3ad429fe461a4a8bdf50f4. 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/DEUE22473597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79ec09ac7282ebb394df843c4919b52b9128e8ec86dc114020eceac5fc5904a2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GX89G2431064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c74f3c51e91617ab9a2af60ae4a07d6c28b344fc5f26f32f97aa0c005c54c6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/CAQOI2301894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x869cd21134be59293d6b6c8eb14e31415a19c63d5d777d3e68d073e65d63e7ec. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZS632365155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8ffff139c967dc5ea3eb7b215dfbdbf27c7e1fffe8893aa2019144d66c5e1b9. 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/GX8LE2360145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f40e1d23a9741358d4705e61ffe7ec7f7fdd4791bc68acf4b06bd3a7b7b848a. 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/GX8LE2474945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0841439f4727a587efaaaf6e99cd1457949912e3e48584205c7897e7edc8a3dd. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GX4R52454613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa964c39a54feeca42646b644b8341f80a9aca34bced650961e66a8f5f5a4744d. 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/GX4R52485627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa85aa4314ee3f779006d4218c8758847faf7b7b62b1d0d8ded4966b6a632220e. 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/QZWDE2446691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b29cc8a212778d9198969ab6f41495f27820f7a832dfe531032797c808e4f3e. 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/DEPI82431822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x060da70ae6d865e54c0d7f3b73fac55d02748d7e4bd71a5b2b4c894bbf064208. 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/GX38U2420869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e600b5de36f0b7f889ed3c8a2b81e9006facd59baaf036c81a2722ce294756. 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/GX8LE2445930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f47c1f2c2a05fe6483639ba390ba099a60bed9186b7be58743730fd1b8470c3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GX8LE2471771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e211f4830e3f1b71b96322c1798b2586ece196309a3bab5d9cf250bda89fb79. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GX8LD2405924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57527fb80b2d1d7b89d07837f20b6a40b2b40b8c997db98ff7b77f53c7bf5266. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/CH7812404119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed23890fbf71e1d3635db18e24adee2b3b9f8847b9d406d95b8026604391194f. 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/GX8KD2432746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f0c3b60c84a397fa46089d25a8d44a97311740520b2227dd274c077044d736. 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/GX8KD2473573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x350b85e7471c8a9d0a4649c5bdf0e3a050c4d6bffcf2fcb6c23e967809e32dd1. 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/GX89G2412606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe7c4c71b9bc99cfc37840c0430968da4ebc2a32dddac14c49796395ec9ee6c9. 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/GX5MY2333442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2907885eed3a4cdf84b6c066f11de3ba8fa2a440335d07427ab81a24e756a496. 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/GXBDS2327504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8f1dfea5d4a302569e5677f4ec1e4593723a319a38ec40107da193215fe1820. 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/CA5KR2395295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17cdc67f35d1677acd1e360046d8c9de3abdf2f05cf226878aed2fe765203df8. 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/QZMHP2318905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89908cdd8168887f1ae09c19dea33733e070f7b626dbbcf6fee7d70abb457911. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZNJX2354212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a4d6447e305ce6a7452a7ff48f18d97f5e6e4f2f5fef4ed77c1f02c63bf8c74. 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/GX8LD2389129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38793a3356dc71720cf599cd8bba62d0be8c13d3767f06ad6fde63c9bdcbeaa6. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/GX8LD2353903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5017640561eba4887e06fd7288a1e94f92fe16c64a1229f0dd8cde898c2f55a. 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/QM3DF2200474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57ff3cc50e7121794e7db0383d73abe3019e4af4b20cea4e6766f4832cdf3da8. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GX8LD2347572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde4f0596ada86f1b3a10b932f7feb66b768b0520685bc3c8ceaefb2d9a83e261. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZS652311597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf95b2c4b3fe038bb69f2ca5725ef10966a311154a47609070eaf540cbed5da7f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZMHK2319650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff6e264607e3ddc479b23d77fcc4ff71be2a61ac525ad99200feb4d283285da5. 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/USLZJ2385380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdda8ca9706c6e049df38c940cec29bfa7a9a1511b6abe4bb8d98bec76f3971ae. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX89G2555642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2199c278125d025d2b5faad1c316e2a59e4d5aeb15148d2ea127f2a3358032df. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBLV62423375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13c8a4934a5960b0570539ca1273457d550067efd56ce4440de34e1c12aa8bfc. 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/GXF972416429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b702a10badac16c6595bae080fa5ac59bfd5f7aa7e401077c518764b28cd307. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US83Z2420820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc435c1779e93b18ab0fd47c01a301c068869a790e28d3019732ccabd5bdefdfb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBLV62411264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e1796c1aba23cce2d2a4ecd2d7d4c1a653d90217eba0c786bcb52c14f3574f7. 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/US83Z2416819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf14be8cd19ebce6ed2ecf660c8d207c8885046c601e3e8e5a4064e83596134b5. 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/US83Z2416820.
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 0x280b88041f3544968a683948de22ac48ae6ca7bc976b0ece16cf97a07a1bdea1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBKQU2496478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed86e051508a5d08fae60f393718047682deb11f382eecf0dbde5f179a33317. 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/GX5MY2489385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb447b97df064420754f9495c1a94276329d1323cb27a7d16576d08d2efd4c769. 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/GXBDS2436953.
Thrift Shop (slowed + reverb) [feat. Alban Chela & Mista LT]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f49db5e87deb07265c7ae134d69cf4b64757eb0f577635909e020fae70bc655. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZS642224571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f2d0f619ce65af35aa6774086618c0e882c5924b7d31274760f9480f7e51622. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZMHK2308484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e5e55351c595e86abb66a14e437628de20813c8e60e4df03a745b8f0839c003. 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/GBSMU9951510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb0be04f3733d1faec221889dc0598eac43ace1f569e7c5c3e2fcf3ecd732628. 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/GBSMU0107438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb57615060aa9bbcec4b28074a803e8ecbad7dc1d6efe3adb0c455c69097453f6. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/GX89G2307744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x842dea3641eb48c5ece9e77ccc667e7281f2c115312a9226ed3f4951a3831e84. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/GBSMU8867044.