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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe021fba5fe3274e376fb149ab1fbd399c9694ead4887e11a1c8974053282f138. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/72ed5f5b-a366-4251-9d4a-21280ddee462.json and https://artists.proofprofile.net/proofs/artist/72ed5f5b-a366-4251-9d4a-21280ddee462.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8fd80f87131ae884caed9b288fd0100d90a7249f06b8f0bc613af63e5c9473c. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZHN82372672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfbdbbfce03b261b3e1e848749a61818eadd4c7b9436455ef6861f839404c9ac. 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/QZHN82372673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51fdda7eed5b5041a2b044027279c96ebd4215aa13af4e718e1d0d66b1b0f7fc. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QZHN82372674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24eb5695523170979fa658684614a5084a1ed97ce4e6afc9508fd1ab4985f5f4. 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/QZHN82372675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14a3463060f07dc391965b181dc0ce92698445d65a2b298fe7be34b4c3a97026. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZHN82372676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd10b40d6b70ebae2ddf310fd26bf3c0c07adf979d793de8d95e30f71a93acdf6. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/QZHN82372677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb666a993158dce3849b8e40da6c904a3c96dbf4a743f7f378e612ded73987a5a. 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/QZHN82372679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f0029ab89ecf389666fce6b62a43e7ba8ef7f925e7e2a2489529ed3b55c94d3. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/QZHN82372680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda08abc2781e38658b8210aff685807e0ce4211dcb6ddc421e8ed73834de22be. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/QZWFF2427663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x315b44a7cb14d927c77cc5c2a00252c323efb33bec33ce2cd88521226fc471f5. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/QZWFF2427664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f22d2fd2d1b30d166add8e9f94c3eeba2d67a417bdf9bb28281d96480970f9. 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/QZWFF2427665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b250c879b1fb1e0f7c602afb3b47ba65c1eae835b8120b24c9681558cc4a739. 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/QZWFF2427666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aceec4299c2cfa0b84773f19540efdd7d9eb3001a2ff9ee8f7fe4ef5fda0dd0. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/QZWFF2427668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa30247d8465c17de678c2bdc34de4521679cc04e3fce3cb407631bb02a345d87. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/QZWFE2474683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91549ffcf052602babad98e722f89cf9fe7f4645d432ba411743d130fdf24da0. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QZWFF2427669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa30247d8465c17de678c2bdc34de4521679cc04e3fce3cb407631bb02a345d87. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/QZWFE2474683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b250c879b1fb1e0f7c602afb3b47ba65c1eae835b8120b24c9681558cc4a739. 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/QZWFF2427666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x698cf32b5da91fd0f68fab7fa6705975a2377512ccb8dc11a4ce4290e1871a90. 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/QZTAW2373627.
(Urethral) Gender Reveal Birthday Party [My Peepee Fell Off]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64539bfec9f5f12fe51e243261ff051b09f491fda68a55f0c7322e03d5c1e1fa. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QZTAY2200608.