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 0x59a0c8406c0bd4d92cfa50240298a726c28d0b5d4b21e917b8fdf9a9c5e70aa4. 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/cb4c6e2d-9a59-4818-803f-c96e0841f301.json and https://artists.proofprofile.net/proofs/artist/cb4c6e2d-9a59-4818-803f-c96e0841f301.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 0x8c0490c8f9a64c2638758bcaa1f51ffbfc253e3cd8b75d3405069506a255649b. 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/TCADK1724595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55600931d8f0ba529dd663ba29d468167fcdcc5616b416ce26d7dc06f31bbead. 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/TCADK1724596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41debb5261a72a4ce6b6fc01bd9ba773a98752389419e5432484833a2ffe3a4a. 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/TCADK1724597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f09a3e1230e66c5dae4e761fd61915e170e560fb7ebd45ce5c67fbbd0f0750. 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/TCADK1724598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ec1a334e5b8093f90cc5fcbc1ecfbba3ad419b9a7e0f9ce1cd9db1a2364ad6d. 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/TCADK1724599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b59629cf24e88ce21d6e3b844ab52730ac5df7c3aad87e990d92edfe22e564. 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/TCADK1724600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3c0d10765d6484f204ee187592ee6938c5dcedc21f53ccabaa57a12a9912f6b. 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/TCADK1724601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5981ec3fb538642148f19fa9d8426b38e1951611c223ad8cf499ed823a5befca. 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/TCADK1724602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbad71badf1db04d64c49b7858e03e3c09dc0619cf134c17711afda2d95b4d08b. 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/TCADK1724603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa65d752fd429a544fc05e18f1b351e3b63e700180e6211dfbe45282bc09e7e32. 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/TCADK1724605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45cfedbe1fe046a3a37bf8b1021afeeeb775892b29d0eca1ebe31395015ad2dd. 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/TCADK1724606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9be5ca5976eadc80ac409935437e3cf559649a9572d864d4ee7ecca4b8db1528. 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/TCADK1724609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c6dfa0207f376bfc4e3143f72d426daff1e444f6ee1b53d8c77aace3444d5d. 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/TCADK1724612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf01dcd80ab6665d018d7ba1364797eaaf173f5e74b9e5a2f49c37dfe29ba206f. 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/TCADK1724613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ce6328746f693a853a4b94e997d2268a5997849691846e2be449406678d52c. 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/TCADK1724621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c7a7c35d6fa3cc06ea022e4b19587e05f438115294e48a54d4dabbade30854. 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/TCADK1724624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x242aab521a3ad3fb34fce61b88e957a669bff8f3a3090c4d65d1be49d9bc4a42. 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/TCADK1724626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x113b29e9688dec509d58a66b275f634ad43137b00fbad3e2ae7ea075dfffa05c. 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/TCADK1724629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e1d1101c3733b2ec3c3da72970e4518eb8d88e1b0ecef2f25b1393cc7a1063e. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/TCADK1724604.
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
We Are the Boyfriend Stealers (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe858dbd65eed6132cc048568a247d52511d104951291a879b559d3d8e275f708. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/TCADK1724610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b63b7805956b64ffd65e675df9a4c327a2692e452f3f02539dd8c2e86381bf1. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/TCADK1724614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc6be43a61c4516e7da7a72b9d903e393f28daa1397e56e8a2c3a123ac450e91. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/TCADK1724616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c3833743aacf196d469af7afde4b3bb5c37a333279d5dd3adf95f4ec97371e1. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/TCADK1724618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f66aa577584bf01fdd40ca1f715339f6ceadd1001412b58feed127ef5ac0e4. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/TCADK1724625.