1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x4d2e39f4cbe8917202cfed7e95756d276551fb3697d91c5e3c2029d4bf4e0518. 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/ef045610-f34f-4bb6-be49-d53d2332296d.json and https://artists.proofprofile.net/proofs/artist/ef045610-f34f-4bb6-be49-d53d2332296d.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 → block OTSBitcoinBlock must exist at that height 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 0xcab075ff30a7697db628f3695db9d7b45f9a718e66652e6ff08c547881c10069. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZFZ42174772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc46a7f20429c15ecd2263732b8f338b27f5312656f2727e72528c6172f53d86d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZK6M2205500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca0bf406ae8090da45141ae4d2ef22e96b09e6e2c8cf7a1173a0e5b6b5e7b41. 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/QZMEN2265299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc46a7f20429c15ecd2263732b8f338b27f5312656f2727e72528c6172f53d86d. 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/QZK6M2205500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c8506431300cd605e0e69099dd8406c4f2a098b5e17b684ce179444b511d69a. 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/QZPLS2303141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cbf8f2508bc1c4f289b4ed34d6045b724430b9bd5e79db737404d4c2db32c26. 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/QZPLS2303142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5959eb8e617424748568deac9ff479cdbdbb913080ae6ba9c78ae52396bd76c6. 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/QZPLS2303144.
and i wear my shades in the house. (freestyle)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2664cd5a4de3da0fdb5cd130984fd49f84b8b4e07a7575dd0b66f5b4df024a04. 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/QZPLS2303145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa97ed305092ca642ad21f4d68fac03d8f29167b93b3fe0f6e6c9384d4e15bea5. 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/QZPLS2303146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcffca7ebee9f19dd4cd825bebe43890753e282944dd4dad4731f5e03cfec258e. 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/QZPLS2303147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fcfa79f8dfb5659ad3057c7df1f870fed9e5b9cca59ae2ffd8252f36809f0b5. 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/QZPLS2303148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf947016c001f86bd49101396ba6bf264507f05d2df9eeb0de5b0fdc45dac4f8. 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/QZPLS2303149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca0bf406ae8090da45141ae4d2ef22e96b09e6e2c8cf7a1173a0e5b6b5e7b41. 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/QZMEN2265299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36db2e5c65f3516f00472873842f4b26537123560652b1d4b4c1b98ca4d778b7. 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/QZTB32215239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55d3a86305d9bc3222e80ced01728e5aceb263f312e8506c60ac78fc3743e01. 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/QZPLS2303152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51964435fa0613292add5c64fcb1ec1dc786cf0112dc8d6da19e043627ae28b6. 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/QZPLS2303153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb7b99e04ecd68f1c2f54fb8da8e962eefa8fb095cfb52f69affd3d8d67378f. 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/QZNWW2125759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c785ff6d8370a0b941374115dfde350d642fa7691b7d72a688df4daa573b405. 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/QZPLS2303155.