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 0x69f0524b09e450963fbb30b0996492c55374818448aa3f89aff9a45b0974e0d0. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/92f7bfd9-fdf2-49c7-911c-dcbbbed97676.json and https://artists.proofprofile.net/proofs/artist/92f7bfd9-fdf2-49c7-911c-dcbbbed97676.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 0x01d71449c44c148a0842496ef75d937df029f394a6cbb551701fabed2c1de0bd. 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/AU7E41700050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf01b857679f91ae4e42a8ac916eb9fc9ec6041bc4e45110b09ec3bd7ad1131e4. 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/AU7E41800057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe162c15bbd53ff6adfd2491f518e427a15c2637ef1570bdd3540efa3383e5926. 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/GBHLW2302080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbb794ad9c6b1439d93b23b0a831b12bb223041e62b314181006e542a9eef125. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/GBHLW2302097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0e53ccaa649aa929e722a704206ee335bced2bb39f3d8d21a6ae89f8def88f6. 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/GBHLW2302081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc86c09f32cae87b2f03efcbe2d29811e9177f99c7550c42cca045b3918e798b7. 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/GBHLW2302082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a4eac9279eb6a3c34272dd58800045c97d5b87efb53c185b6285579ebabbd2. 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/GBHLW2302083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c7600c0950a973a84b80006d4db1dba4996b46e94130a132ff5d72dc976c1a4. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/GBHLW2302084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbb794ad9c6b1439d93b23b0a831b12bb223041e62b314181006e542a9eef125. 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/GBHLW2302097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0e53ccaa649aa929e722a704206ee335bced2bb39f3d8d21a6ae89f8def88f6. 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/GBHLW2302081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda9c0c08adea4cf45f2bcb3a2b3e6689c5f8bea14819b39d0af011024fc5ec52. 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/MXD782201938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8af80c38fb960b1654d0fd76c78df64e561abc5bb96ce912dafba5dd6df59091. 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/MXD782201939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec4d1bb22c744d98a31778a5b1631606a8f01ecbce829682d1905d583bd2978e. 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/MXD782201940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef2754e11b1b9c66fbd4841ba8cd4e206863134000fdf5ff66da19c43065ec69. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZMHP2002428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c8d763d142760260f4f574b04fc7e1cb0f96e5e12fe9cdc230f0a7c2a8f9e8a. 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/QZMHL2085396.
Sound the Alarm, Vol. 1: Louder Feelings
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a97aa35d1324afb885dfc55f06250d04d50b77cee00a9bccceea1ff0a39f471. 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/QZ93L2050612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeacee865f8685a3afa1afd97d5b40cdc595745a2a26b7ac2f5175a7a4038a687. 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/QZRP52390797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c1b2c05828f1f22bca427e9f1286220802f2276b861f74faedafb8ba4e9976. 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/QZK6M2039227.