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 0x69eb2ba2dec5f2289eff281786eb37eeeebf91ebe3f25c7e2a72c5e169aa70b0. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0f708db4-7889-46c3-bb91-e90fc4c749dc.json and https://artists.proofprofile.net/proofs/artist/0f708db4-7889-46c3-bb91-e90fc4c749dc.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 0x4226b88177afc1dd047f8500aaa163c06cae729754e5dfb86d1f32afd9fae8a3. 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/USA2P0717239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5aaad90334d9b3da0bf6ecf51906fdcf774171c49a6f1c904e1ee0200fcf154. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USA2P0717240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51bdfe7e639554297f2aa99368b0f29adb0832cbc19d4ac40fe10e8fb423bfb1. 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/USA2P0717242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a7401efbbe1a0929f18abcb04ac0f2ec0d73aada9eba0399418622cee70ce0. 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/USA2P0717243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4bc3ab3b426af32557da6b81d58f0928d4eb4670e583dbd9378dbf79fde562e. 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/USA2P0717244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd18021d3967f41e5d00ad1971f1e0eae53a95f81d0aa1cd393d7ec877962b48. 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/USA2P0717245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2a761edb0921c264df3b09d9b1762c3a38e60cb43c994624c2eb3753f6ad22c. 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/USA2P0717241.
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
Woodie & East Co. Co. Records Presents Northern Expozure 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec6064fafafcb3005c4a5fa7c6363ee249dd3ecef5db77bcbc70029e17c4ffa4. 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/US7760500031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb1337895550783145c3268a88afa2fb9d9d9ac0f1d64b991909b2758b1597e2. 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/US7760500032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe47e758db161bcf485a12605629dc7691029010a111e521bd8c136f19a6888bf. 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/US7760500033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cb0d8bd42f4ce12b0fef20d4cee48811c71362732330a2388ad4150e49f2416. 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/US7760500034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x941640f1185c1c4e4c44a6b2c0e1c984f91ecca65ad7c9da640f2399beb7c476. 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/US7760500036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c0b536e60fac01f1b93a489230d76037991f3921b98f230eee1ea17042da3ec. 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/US7760500037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1db349ce656f6bae2ca5b3a55605a1fd9f3cdd7f013780d10ed12b3d6f041495. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/US7760500038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c3de1b4367e03da2a8977fd44292069617146a8493d075d3ccbb4afccc1e911. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/US7760500040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54a12ba8409c45872c43e7c7841a3e6b8e284c60cf8f3d278b445fdc3f8502a6. 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/US7760500041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a12b70b2fdef97d0ce71873daa720b1cd7d7830fdc624bc88356d4b835eba4. 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/US7760500042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f982b9a6d86589bea90f01a7f3eddbf356876f5a05cd8ee8966f1cf80afae1. 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/US7760500043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cb4dc4b19bcbcb8f62b4107430b1dc6c27e7adf932f21ee9e10b124c01dbabb. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/US7760500045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda1adf16e659316deffc3e7148e08f51561a7de35fb05f55655feacdeec5654e. 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/FR6V82466172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe606d1b96ea72cef9f318a41df4ef1b9bc46f38576f7a9d086dfc6fcb3a348dc. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/USHM90766562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd040d393b1c8e9d9ee3a15a6624405b318debdc71dd1be7d6e3272c23c4d27. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USHM90766572.
Lil Coner Presents - Connections; Time is Money
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe50c685949dcc40b015454c04b653a2e334009d57c3f52cd5c396f964e9a3df6. 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/US77A0500058.
Les-G Presents: Natural Born Killa'z The SoundTrack