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 0x8a1bc6c64e6d13a195affc820185bac6ef173f54369b2a8fe42aff6ef46aae5a. 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/4d167354-cb8e-4aec-8c27-5ac04d171ace.json and https://artists.proofprofile.net/proofs/artist/4d167354-cb8e-4aec-8c27-5ac04d171ace.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 0xba16e761cf21efbc1e8dd6e23b3caa68c9e2c592a66fd08832eeb4ce1244e2ee. 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/QMFME2324503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fb6a9b00b5d453470013295081f3bbcc13a7c69e144bd61c91a7d5bb5f91f08. 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/QMFME2324504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e2d91b03ddf1a0456fd4f213234b7f2aa9526e4c389179efb8e5e63e28d1c9. 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/QMFME2324512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84991f6bf23a91b5e14c37c3d48d558264f5fba43c97e87496c8868b2df605eb. 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/QMFME2324513.
And Everything Changed (But I Feel Alright)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c06dbdba2d6ba658337f0ad49a4f7fce27434b2849fd17e9219cf6e9b3f3c20. 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/QMFME2068541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5886aa34bb5a542eaf5a6eb85869deac47dbfd7b43cb6d9ce45ac4b71a7a06. 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/QMFME2068542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92495dfd0765c8504fcbe436b65cdd336224400c3471187b273cb7bfa7a915e4. 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/QMFME2068543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2c6511fb3faf2c545ad2229184a3b536857f42d1f2f5d3d306d8ec15105385. 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/QMFME2068545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e05d827006f3f71140155219b7d2307d34be244d9900161b4c5cfc70b256016. 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/QMFME2068548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x794657a5454398962b8b9d8ccc380d1d262f0f6f2c9fbaa2a851cbff34725da1. 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/QMFME2068540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd63f77903ceb4ceb15c41b03a6245e699c8d4f9346c9b181d363040b95a945. 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/GBKPL1810748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1ea15161c6b5cd6a1d0af0174b0e56ea27c5ae7c29d7504775458f3d0f9760. 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/QM6P41993781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x077027cce09a117320687f66c45e97c2a8423590420c6ec9b8847d372c560ff4. 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/QM6P41993782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc44429d2b3d372c46b34f071385e8bdc626951a44ae22b256478882d9a0bb87f. 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/GB45A1801097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x338501733e713a6296409a01470754e77f659e3113decb4ddfdb0ae5c072b607. 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/GB45A1801098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba16e761cf21efbc1e8dd6e23b3caa68c9e2c592a66fd08832eeb4ce1244e2ee. 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/QMFME2324503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c06dbdba2d6ba658337f0ad49a4f7fce27434b2849fd17e9219cf6e9b3f3c20. 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/QMFME2068541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1080ed48f0e61f2ee0b8ae4b19055b044c374662fd5a172384da79b0b0f06b9e. 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/GBM4B2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44e0199014fc92f50824e533f554822928d3b5fd9c9d4ceebf70584d573f8055. 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/GBM4B2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bf358bf206e0eab1d8e71ba29bccc3f63a2d20f2368d245346e8169dcb77b5d. 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/GBM4B2000005.